TERM,MEANING .7z,Common filename extension for archive files in 7z format .bat,Common filename extension for Batch script files .bz2,Common filename extension for archive files in bzip2 format .c,Common filename extension for C source code files .cpp,Common filename extension for C++ source code files .csv,Common filename extension for comma-separated value files .cfg,Common filename extension for configuration files .dll,Common filename extension for dynamic-link library files on Windows .exe,Common filename extension for executable files on Windows .gif,Common filename extension for GIF image files .gz,Common filename extension for archive files in gzip format .h,Common filename extension for C/C++ header files .hpp,Common filename extension for C++ header files .ilk,Common filename extension for incremental linking files on Windows .jar,Common filename extension for Java archive files .jfif,Common filename extension for JPEG image files .jpeg,Common filename extension for JPEG image files .jpg,Common filename extension for JPEG image files .lib,Common filename extension for static library files on Windows .m3u,Common filename extension for audio playlists .md,Common filename extension for Markdown files .mp3,Common filename extension for MPEG layer 3 audio files .pdb,Common filename extension for program debug database files on Windows .ps1,Common filename extension for PowerShell script files .psd1,Common filename extension for PowerShell data files .psm1,Common filename extension for PowerShell module files .psxml,Common filename extension for PowerShell XML files .sh,Common filename extension for script files .sln,Common filename extension for MSBuild solution files .tar,Common filename extension for archive files in tar format .txt,Common filename extension for text files .vcxproj,Common filename extension for Visual Studio project files .xml,Common filename extension for XML files .xz,Common filename extension for archive files in XZ format .zip,Common filename extension for archive files in Zip format 1NF,First Normal Form 2.5D,Two-And-A-Half-Dimensional 286,Intel 80286 processor 2B1Q,2 Binary 1 Quaternary 2FA,Two-factor authentication 2GL,Second-Generation Programming Language 2KB,"2,000 Bytes" 2NF,Second Normal Form 3-D,three dimensions or three-dimensional 3270,Information Display System 386,Intel 80386 processor 3BL,triple bottom line 3DCG,Three-Dimensional Computer Graphics 3DS,"Nintendo 3DS or 3 Dual Screen" 3G,third generation of mobile telephony 3GL,Third-Generation Programming Language 3GPP,3rd Generation Partnership Project 3LS,3rd Level Support 3NF,Third Normal Form 3PL,third-party logistics 3PV,Peak Player Production Values 3Vs,"volume, variety and velocity" 4-D,printing four-dimensional printing 40GbE,40 Gigabit Ethernet 42,"the answer to the ultimate question of life, the universe, and everything (from 'The Hitchhiker's Guide to the Galaxy' by Douglas Adams)" 486,Intel 80486 processor 4B5BLF,4 Byte 5 Byte Local Fiber 4G,Fourth Generation 4GL,Fourth-generation Programming Language 4NF,Fourth Normal Form 5GL,Fifth-Generation Programming Language 5NL,Fifth Normal Form 6NF,Sixth Normal Form 7W,seven wastes 8-VSB,8-level vestigial sideband 802.11,Wireless LAN 8B10BLF,8 Byte 10 Byte Local Fiber A+,A Plus A.I.,Airborne Internet A/m,"Oe, oersted ampere per meter" A11Y,Accessibility AA,modem lights AAA,"Authentication,Authorization,Accounting" AABB,Axis Aligned Bounding Box AAC,Advanced Audio Coding AACS,Advanced Access Content System AAI,Applied Artificial Intelligence AAM,Automatic Acoustic Management AAR,Apple Authorized Reseller AARP,AppleTalk Address Resolution Protocol AAS,as a service AAS,Auto Area Segmentation AAUI,Apple attachment unit interface ab,W abohm abA,abampere ABAP,Advanced Business Application Programming ABB,activity-based budgeting ABBH,average bouncing busy hour abC,abcoulomb ABC,"activity-based costing, Atanasoff-Berry Computer" abend,abnormal end abF,abfarad abH,abhenry ABIOS,Advanced BIOS ABM,activity-based management ABP,"AdBlock Plus, Microsoft Exchange Address Book Policy" ABR,"AutoBaud Rate or Available Bit Rate" abS,absiemens abV,abvolt ABVS,Automated Best Value System abW,abwatt AC,Alternating Current AC-3,Dolby Digital ACCT,Account ACD,Automatic Call Distributor ACE,Access Control Entry ACeS,Asia Cellular Satellite System ACF2,Access Control Facility ACH,Automated Clearing House ACID,"Atomicity, Consistency, Isolation, Durability" Ack,Acknowledgement ACL,Access Control List ACM,Association for Computing Machinery ACO,accountable care organization ACPI,Advanced Configuration and Power Interface ACR,"Absolute Cell Reference, attenuation-to-crosstalk ratio" ACT,Application Compatibility Toolkit ACTA,America's Carriers Telecommunications Association ACTS,Automatic Coin Telephone System ACV,all commodity volume AD,Active Directory ADAT,Alesis Digital Audio Tape ADatP,Automated Data Processing ADC,"Analog-to-Digital Converter, automated data collection" ADE,qutomated data entry ADF,Automatic Document Feeder ADO,ActiveX Data Objects ADP,Automatic Data Processing ADPCM,adaptive differential pulse-code modulation ADS,Alternate Data Stream ADSI,Analog Display Services Interface ADSL,Asymmetric Digital Subscriber Line ADSM,ADSTAR Distributed Storage Management AES,Advanced Encryption Standard AET,advanced evasion technique AF,audio frequency AFC,antiferromagnetically-coupled AFIS,Automated Fingerprint Identification System AFM,atomic force microscopy AFP,"Advanced Function Printing, Apple Filing Protocol" AFS,Andrew file system aglet,agile applet AGP,Accelerated Graphics Port AGI,Artificial General Intelligence AHA,Accelerated Hub Architecture AHCI,Advanced Host Controller Interface AHIMA,American Health Information Management Association AHRQ,Agency for Healthcare Research and Quality AHT,average handle time AI,Artificial Intelligence AIBO,Artificial Intelligence roBOt AICPA,American Institute of Certified Public Accountants AID,automatic identification AIDC,Automatic Identification and Data Capture AIFF,Audio Interchange File Format AIM,application integration middleware AIMS,agile infrastructure for manufactured systems AIN,Advanced Intelligent Network AIT,advanced intelligent tape AIX,Advanced Interactive eXecutive Ajax,Asynchronous JavaScript and XML AKO,Army Knowledge Online AL,access list ALE,Application Link Enabling ALM,application lifecycle management ALPR,Automated License Plate Recognition alt.,alternate newsgroup ALU,Arithmetic Logic Unit AMD,Advanced Micro Devices AMD-V,AMD virtualization AMI,"advanced metering infrastructure, Amazon Machine Image" AMIA,American Medical Informatics Association AML,anti-money laundering software AMPS,Advanced Mobile Phone Service AMR,"ambulatory medical record, Audio/Modem Riser, AMR slot, automated meter reading" AMT,advanced manufacturing technology AMTOR,amateur teleprinting over radio ANI,Automatic Number Identification ANQP,Access Network Query Protocol ANSI,American National Standards Institute AoE,ATA over Ethernet AOI,automated optical inspection AOP,aspect-oriented programming AOSP,Android Open Source Project AP,"accounts payable,Adaptive Planning" Apache Hadoop YARN,Yet Another Resource Negotiator APAR,authorized program analysis report API,Application Programming Interface APICS,American Production and Inventory Control Society APIPA,Automatic Private IP Addressing APL,a programming language APM,"Advanced Power Management, Application Performance Monitoring, Application Portfolio Management" APO,"Advanced Planner and Optimizer, advanced planning and optimization" AppBlast,Project AppBlast APPC,Advanced Program-to-Program Communication or LU 6.2 APPN,Advanced Peer-to-Peer Networking APQP,advanced product quality planning APS,Advanced Planning and Scheduling APT,Advanced Persistent Threat APU,Accelerated Processing Unit AR,Accounts Receivable AR,Augmented Reality ARAX,Asynchronous Ruby and XML ARIN,American Registry of Internet Numbers ARJ,Archive Robert Jung ARP,Address Resolution Protocol ARPA,Advanced Research Projects Agency ARPU,average revenue per user or average revenue per unit ARQ,Automatic Repeat Request ARRA,American Recovery and Reinvestment Act of 2009 ARRL,American Radio Relay League AS,Autonomous System AS/400,"IBM iSeries, AS/400e, eServer iSeries/400" AS1,Applicability Statement 1 AS2,Applicability Statement 2 ASAP,AcceleratedSAP ASCII,American Standard Code for Information Interchange ASD,Agile Software Development ASE,Adaptive Server Enterprise ASF,Apache Software Foundation ASHRAE,"American Society of Heating, Refrigerating, and Air-Conditioning Engineers" ASIC,Application-Specific Integrated Circuit ASIO,Audio Stream Input/Output ASLR,address space layout randomization ASN,advanced shipping notice ASN.1,Abstract Syntax Notation One ASP+,ASP.NET ASP,Active Server Page ASP,Application Service Provider ASP,authorized service provider ASPI,Advanced SCSI Programming Interface ASPIC,Application Service Provider Industry Consortium ASQ,American Society for Quality ASR,automated speech recognition ASRS,automated storage retrieval systems ASSP,application-specific standard product AST,automated storage tiering ASTM,American Society for Testing and Materials ASUG,Americas' SAP Users' Group ATA,Advanced Technology Attachment ATA,American Telemedicine Association ATA,analog telephone adapter ATAPI,AT Attachment Packet Interface ATE,automated test equipment ATL,Active Template Library ATM,Asynchronous Transfer Mode ATO,assemble to order ATP,advanced technology program ATR,automated trouble reporting ATS,applicant tracking system ATSC,Advanced Television Systems Committee ATU-R,ADSL Terminal Unit - Remote ATV,advanced television ATVEF,Advanced Television Enhancement Forum ATX,Advanced Technology eXtended (a form factor for motherboards and power supplies) AUI,attachment unit interface AUP,acceptable use policy AV,audio/video AVA,anonymous video analytics AVI,Audio Video Interleaved AVL,approved vendor list AVL,automatic vehicle locator AVR,Audio/Video Receiver AWG,American Wire Gauge AWIS,Alexa Web Information Service AWS,Amazon Web Services AWT,Abstract Window Toolkit AXI,automated X-ray inspection AXT,alien crosstalk B8ZS,"bipolar 8-zero substitution, binary 8-zero substitution, clear channel, clear 64" BA,business agility BA,business analytics BAA,broad agency announcement BAA,HIPAA business associate agreement BAL,Basic Assembler Language BAL,branch-and-link BAM,Bottleneck Allocation Methodology BAM,business activity monitoring BAPI,Business Application Programming Interface Bash,Bourne-Again Shell BASIC,Beginner's All-purpose Symbolic Instruction Code BBCs,buffer credits or buffer-to-buffer credits BBS,bulletin board system BC,Set Business Configuration Set BCBS,Basel Committee on Banking Supervision BCC,Blind Carbon Copy Bcc,blind carbon copy or blind courtesy copy BCDR,Business Continuity and Disaster Recovery BCI,brain-computer interface BCM,business continuity management BCMA,Bar Coded Medication Administration BDaaS,big data as a service BEDO,Burst Extended Data Output BER,bit error rate BES,BlackBerry Enterprise Server BEST,Business / Enterprise State Transfer BEx,Business Explorer BGAN,Broadband Global Area Network BGP,Border Gateway Protocol BHIE,Bidirectional Health Information Exchange BI,business intelligence BIA,business impact analysis BIC,"bank identifier code, Best In Class, business information center" BICC,Bearer Independent Call Control BICC,business intelligence competency center BIOS,Basic Input/Output System BISDN,Broadband Integrated Services Digital Network BIST,Built In Self Test bit,binary digit BLE,Bluetooth Low Energy BLOB,Binary Large OBject BMAN,Broadband Metropolitan Area Network BMC,baseboard management controller BMP,Best Manufacturing Practices BMP,Bitmap BMS,battery management system BNC,Bayonet Neil-Concelman or British Naval Connector BOB,branch office box BOC,Bell operating company BOH,Balance On Hand BOL,beginning of life BOM,Bill Of Materials BOOTP,Bootstrap Protocol BP&F,"budgeting, planning and forecasting" BPA,business process automation BPaaS,Business Process as a Service BPCS,Business Planning and Control System BPEL,Business Process Execution Language BPI,business process improvement BPL,Broadband over Power Line BPM,business process management BPMI,Business Process Management Initiative BPML,Business Process Modeling Language BPMN,Business Process Modeling Notation BPMS,Business process management suite BPO,business process outsourcing BPR,Business Process Reengineering bps,bit/sec bits per second BPS,bulk power system BRE,business rules engine BREW,Binary Runtime Environment for Wireless BRI,Basic Rate Interface BSA,Bank Secrecy Act BSA,Business Software Alliance BSD,Berkeley Software Distribution BSOD,Blue Screen of Death BSP,business service provider BT,business technology BTF,Build To Forecast BTM,business technology management BTO,Build To Order BTOP,Broadband Technology Opportunities Program BTP,Business Transaction Protocol BTS,Build To Stock Btu,British thermal unit BTX,Balanced Technology eXtended (a form factor for personal computer motherboards) BU,backup utility BURN-Proof,Buffer Under Run Error Proof burst SRAM,SynchBurst SRAM BYOA,Bring Your Own Apps BYOC,Bring Your Own Cloud BYOD,Bring Your Own Device BYOE,Bring Your Own Encryption BYOI,Bring Your Own Identity BYON,Bring Your Own Network BYOT,bring your own technology BYOx,bring your own everything C&C,server command-and-control server C2C,Client to Client CA,cellular automaton CA,certificate authority CaaS,Communications as a Service CAC,call admission control CAC,common access card CACS,computer assisted coding system CAD,Computer-Aided Design CAD/CAM,computer-aided design/computer-aided manufacturing CADE,Corporate Average Data center Efficiency CAE,Computer-Aided Engineering CAES,compressed air energy storage CAFC,Container on Flat Car CAFE,Corporate Average Fuel Economy CAGR,Compound Annual Growth Rate CAIV,Cost As (An) Independent Variable CALEA,Communications Assistance for Law Enforcement Act CALS,Continuous Acquisition and Life-Cycle Support CAM,Computer-Aided Manufacturing CAM,corporate account manager CAM-I,Consortium for Advanced Manufacturing -- International CAMM,Common Assurance Maturity Model CAMU,Computerized Assembly Mock Up CAN,Campus Area Network CAN,corporate area network CAP,carrierless amplitude/phase CAP,theorem Brewer's theorem Capex,capital expenditure CAPI,Common Application Programming Interface CAPM,cloud application performance management CAPOSS,CApacity Planning and Operation Sequence Scheduling CAPP,Computer-aided process planning CAPTCHA,Completely Automated Public Turing Test to tell Computers and Humans Apart CAS,channel-associated signaling CAS,Client Access Server CAS,content-addressed storage CASA,Computer and Automated Systems Association CASE,computer-aided software engineering CASE,Computer-Aided System Engineering CATT,Computer Aided Test Tool CATV,community access television CAVE,Cave Automatic Virtual Environment CB,Citizen's Band Radio CBA,cost-benefit analysis CBC,cipher block chaining CBSA,Component Based Solution Assembly CBT,Changed Block Tracking CBT,Computer-Based Training CC,Common Criteria CCB,Change Control Board CCD,"Charge-Coupled Device, Continuity of Care Document" CCEVS,Common Criteria Evaluation and Validation Scheme for IT Security CCIE,Cisco Certified Internetwork Expert CCITT,ITU-T Telecommunication Standardization Sector of the International Telecommunications CCJ,collaborative citizen journalism CCK,Complementary Code Keying CCM,Color Changing Material CCMM,cloud computing maturity model CCMP,Counter Mode with Cipher Block Chaining Message Authentication Code Protocol CCNA,Cisco Certified Network Associate CCNP,Cisco Certified Network Professional CCO,chief customer officer CCO,Corporate or Chief Compliance Officer CCR,Central Contractor Registration CCR,Continuity of Care Record CCS,common channel signaling CCS,hundred call second or centum call second CCSP,Cisco Certified Security Professional CCTV,closed circuit television CD,cardholder data CD,Continuous Delivery CD,Compact Disc CD-i,Compact Disc - interactive CD-MO,CD-Magneto Optical CD-R,"compact disc, recordable" CD-ROM XA,"Compact Disc - read-only-memory, extended architecture" CD-RW,"compact disc, rewriteable" CDA,Clinical Document Architecture CDC,change data capture CDD,contract delivery date CDDI,Copper Distributed Data Interface CDE,cardholder data environment CDE,Common Desktop Environment CDF,Channel Definition Format CDI,customer data integration CDMA,Code-Division Multiple Access CDN,content delivery network CDO,chief data officer CDO,Chief Digital Officer CDO,Collaboration Data Objects CDP,clean desk policy CDPD,Cellular Digital Packet Data CDR,call detail record CDR,Computed Dental Radiography CDSL,Consumer Digital Subscriber Line CDSS,clinical decision support system CdTe,cadmium telluride CEBP,communications-enabled business processes CELL,Cell processor CEM,customer experience management CEMS,Contract Electronic Manufacturing Services CEP,complex event processing CERCLA,"Comprehensive Environmental Response, Compensation and Litigation Act" CERN,Conseil Europeen pour la Recherche Nucleaire CERT,Computer Emergency Readiness Team CES,Consumer Electronics Show CF,CompactFlash card CFAA,Computer Fraud and Abuse Act CFAR,Collaboration Forecasting and Replenishment CFB,ciphertext feedback CFD,Computational Fluid Dynamics CFI,custom factory integration CFL,compact fluorescent light bulb CFM,Continuous Flow Manufacturing CFML,ColdFusion Markup Language CFO,Chief Financial Officer CFR,call failure rate CG,Consumer Goods CGDC,Computer Game Developers Conference (became GDC in 1998) CGF,Computer-Generated Forces (Simulation) CGI,common gateway interface CGM,Computer Graphics Metafile CGMP,Current Good Manufacturing Practices CGO,Chief Green Officer CHAP,Challenge-Handshake Authentication Protocol CHDR,Clinical Data Repository/Health Data Repository CHI,Computer-Human Interaction CHI,Consolidated Health Informatics CHIME,College of Healthcare Information Management Executives CHKDSK,check disk chmod,change mode CHRO,chief human resources officer CHTML,Compact HTML CI,competitive intelligence CI,Continuous Improvement CI,continuous integration CI,customer intelligence CIA,"confidentiality, integrity, and availability" CICS,Customer Information Control System CIDM,Customer-Integrated Decision Making CIDR,Classless Inter-Domain Routing or supernetting CIDR,supernetting or Classless Inter-Domain Routing CIFS,Common Internet File System CIM,Common Information Model CIO,Chief Information Officer CIPE,Compressed Integrated Product Engineering CIR,committed information rate CIS,Center for Internet Security CIS,cloud-integrated storage CISA,Certified Information Systems Auditor CISC,complex instruction set computer or computing Cisco IOS,Cisco Internetwork Operating System Cisco LISP,Location Identifier Separation Protocol CISM,certified information security manager CISO,chief information security officer CISP-PCI, Cardholder Information Security Program - Payment Card Industry Data Security Standard CISPA,Cyber Intelligence Sharing and Protection Act of 2011 CISS,Cisco Information Security Specialist CISSP,Certified Information Systems Security Professional CIW,Certified Internet Webmaster CIW,Computer Intensive Workload CKO,chief knowledge officer CL,cluster log CLASS,Capacity Loading and Operation Sequence Scheduling CLEC,competitive local exchange carrier CLI,command line interface CLI,Command Line Interpreter CLI,Common Language Infrastructure CLM,Council For Logistics Management CLO,chief learning officer CLOB,Character Large OBject CLOS,Common Lisp Object System CLR,Common Language Runtime CM,configuration management CM,content management CM,Contract Manufacturer CMA,content management application CMDB,configuration management database CMDM,Collaborative Master Data Management CMIO,Chief Medical Information Officer CMIP,Common Management Information Protocol CMIS,Content Management Interoperability Services CMM,Capability Maturity Model CMO,chief marketing officer CMOS,Complementary Metal–Oxide–Semiconductor CMOx,conductive metal-oxide CMR,customer-managed relationship CMRP,Capacitated Material Requirements Planning CMS,"Content Management System, Cisco Meeting Server, Conversational Monitor System" CMTS,cable modem termination system CMYK,"cyan, magenta, yellow, key" CNA,converged network adapter CNC,Computer Numerical Control CNG,comfort noise generator CNO,cluster name object CNO,Computer Network Operations CNR,Communication and Networking Riser CO,capacity optimization CO,central office COA,chart of accounts COA,cloud-oriented architecture COA,Continuous Ordering Agreement COB,Chip On Board COBOL,Common Business Oriented Language COD,capacity on demand Codec,"Coder-Decoder / Compressor-Decompressor / Compression-Decompression algorithm" COGS,Cost of Goods Sold CoIP,communications over Internet Protocol COLA,"comp.os.linux.announce" COLD,Computer Output to Laser Disk colo,colocation COM,Component Object Model CompTIA,Computing Technology Industry Association CONUS,continental United States COO,Cell of Origin COO,Chief Operating Officer COO,Cost of Ownership COPE,"corporate-owned, personally-enabled" COPPA,Children's Online Privacy Protection Act COPS,Common Open Policy Service Protocol CORBA,Common Object Request Broker Architecture CoS,Class of Service COTS,commercial off-the-shelf CP,configuration profile CP,control plane CP,Cost Performance CPCA,California Primary Care Association CPE,customer premises equipment CPG,consumer packaged goods CPIM,Certified in Production and Inventory Management CPIO,Chief Process and Innovation Officer CPL,computer pidgin language CPM,Certified Purchasing Manager CPM,corporate performance management CPM,critical path method CPNI,Customer Proprietary Network Information CPO,Chief Procurement Officer CPOE,computerized physician order entry CPPS,Cost Performance Products Sector CPRM,Content Protection for Removable Media CPS,cycles per second CPT,Current Procedural Terminology CPU,Central Processing Unit CPW,Commercial Processing Workload CQA,Certified Quality Auditor CQE,Certified Quality Engineer CR,cognitive radio CRA,customer relationship analysis CRAC,computer room air conditioning unit CRAH,computer room air handler CRAM,challenge-response authentication mechanism CRC,Cyclic Redundancy Check CRL,Certificate Revocation List CRM,citizen relationship management CRM,Customer Relationship Management CRO,Chief Risk Officer CRP,Capacity Requirements Planning CRT,cathode ray tube CRT,Current Reality Tree CRUSH,Controlled Replication Under Scalable Hashing CSA,Cloud Security Alliance CSAT,customer satisfaction CSBB,Client Side Browser Based CSC,common short code CSC,customer service chat CSD,circuit switched data CSI,Customer Satisfaction Index CSIRT,Computer Security Incident Response Team CSMA,Carrier Sense Multiple Access CSO,Chief Security Officer CSO,Chief Strategy Officer CSP,Commerce Service Provider CSR,"Certificate Signing Request, Carrier Sensitive Routing, corporate social responsibility" CSS,"Cascading Style Sheets, Content Scrambling System, customer self-service, customer service and support" CSV,Cluster Shared Volumes CSV,Comma Separated Values (a file format) CTC,click-to-talk CTC,community technology center CTCI,Computer-to-computer interface CTD,cumulative trauma disorder CTE,Committee on Trade and the Environment CTFT,color thin film transistor CTG,Council for Trade in Goods CTI,computer-telephony integration CTO,Chief Technology Officer CTO,Configure To Order CTOps,team counterthreat operations team CTP,Capability To Promise CTP,CloudTrust Protocol CTP,common test platform CTR,clickthrough rate CUE,carbon usage effectiveness CULV,consumer ultra-low voltage CVC,Calibrated Vectored Cooling CVE,Common Vulnerabilities and Exposures CVO,chief visionary officer CVS,Concurrent Versions System CVV,card verification value CWDM,coarse wavelength division multiplexing CWE,Common Weakness Enumeration CWF,common working file CWNP,Certified Wireless Networking Professional CX,consumer experience CXO,chief experience officer D-AMPS,Digital-Advanced Mobile Phone Service D-VHS,Digital Video Home System D2D,Disk to Disk D2D2C,Disk to Disk to Cloud D2D2T,Disk to Disk to Tape DA,data analytics DAA,Data Access Arrangement DaaS,Desktop as a Service DAB,Digital Audio Broadcasting DAC,digital-to-analog conversion DAC,Microsoft Dynamic Access Control DAFS,Direct Access File System DAG,database availability group DAI,Dynamic ARP Inspection DAM,database activity monitoring DAMA,Design Anywhere Manufacture Anywhere DAML,DARPA Agent Markup Language DAO,Data Access Objects DAQ,Data Acquisition DARC,Defense Acquisition Regulatory Council DAS,direct-attached storage DAS,distributed antenna system DASD,direct access storage device DAT,Digital Audio Tape DAW,digital audio workstation DB,Database DBA,database administrator DBaaS,Database as a Service dBc,decibels relative to carrier DBCS,Double Byte Character Set dBd,decibels related to dipole antenna dBi,decibels relative to isotropic radiator DBIR,Verizon Data Breach Investigations Report dBm,decibels relative to one milliwatt DBMS,Database Management System dBmV,decibels relative to one millivolt DBOR,database of record dBr,decibels relative to reference level DBS,demand-based switching DBS,direct broadcast satellite DC,direct current DC,Distribution Center DCaaS,data center as a service DCB,data center bridging DCCP,Datagram Congestion Control Protocol DCE,Distributed Computing Environment DCIE,data center infrastructure efficiency DCIM,data center infrastructure management DCIM,Digital Camera Images DCIT,Digital Compression of Increased Transmission DCM,dynamic case management DCMA,Defense Contract Management Agency DCML,Data Center Markup Language DCO,data center outsourcing DCOM,Distributed Component Object Model DCOP,Desktop Communication Protocol DCPA,Distributed Control Plane Architecture DCPromo,Domain Controller Promoter DCS,Distributed Control System DDA,"Digital Differential Analyzer (graphics algorithm), or Digital Differential Analyzer" DDB,Amazon Dynamo Database DDBMS,distributed database management system DDCD,Double-Density Compact Disk DDD,"Data Display Debugger or Digital Digital Digital (CD mastering)" DDDM,data-driven decision management DDE,Dynamic Data Exchange DDK,driver development kit DDL,Digital Data Link DDL,Data Definition Language DDM,demand-driven manufacturing DDM,direct digital marketing DDoS,Distributed Denial of Service DDR,double data rate DEC,Digital Equipment Corporation DECT,Digital Enhanced Cordless Telecommunications DECT,Digital European Cordless Telephone DEM,Dynamic Enterprise Modeling DEN,Directory-Enabled Networking DES,Data Encryption Standard DES,discrete event simulation DES,Distributed Execution System DFA,Design for Assembly DFAA,Design for Automated Assembly DFB,Distributed Feedback DFD,Design for Disassembly DFE,Design For Environment DFL,Demand Flow Leadership DFM,Demand Flow Management DFM,digital footprint management DFS,Distributed Factory System DFS,distributed file system DFSC,Design for Supply Chain DFT,Demand Flow Technology DG,data governance DHA,directory harvest attack DHCP,Dynamic Host Configuration Protocol DICOM,Digital Imaging and Communications in Medicine DID,Direct Inward Dialing DIF,Data Interchange Format DIME,Direct Internet Message Encapsulation DIMM,Dual In-line Memory Module direct,Telnet reverse Telnet DirSync,Windows Azure Active Directory Sync DISA,Defense Information Systems Agency Diskpart,Disk Partition Utility Divx,Digital Video Express DLC,data link control DLL,Dynamic Link Library DLM,data life cycle management DLP,data loss prevention DLT,digital linear tape DMA,Direct Memory Access DMAIC,"define, measure, analyze, improve, control" DMB,digital multimedia broadcasting DMCA,Digital Millennium Copyright Act DMD,Direct Metal Deposition DMI,Desktop Management Interface DMI,Digital Migration Interface DMOS,Double Diffused MOS transistor DMP,data management platform DMP,dynamic multi-pathing DMR,direct market reseller DMS,Defense Message System DMT,discrete multitone DMTF,Distributed Management Task Force DMVPN,dynamic multipoint VPN DMZ,demilitarized zone DNC,Direct Numerical Control DNC,distributive numerical control DND,Dungeons & Dragons (a computer game) DNG,Digital Negative DNIS,Dialed Number Identification Service DNN,DotNetNuke DNS,domain name system DNSSEC,DNS Security Extensions DNT,Do Not Track DO,derived object DOCSIS,Data Over Cable Service Interface Specifications DOD,Direct Outward Dialing DOE,Department of Energy DOI,Digital Object Identifier DOI,digital object identifier DOL,Department of Labor DOLAP,Desktop OnLine Analytical Processing DOLS,Domino Off-Line Services DOM,Document Object Model DoPa,DoCoMo Packet Transmission DoS,denial of service DOS,Disk Operating System DOVE,IBM DOVE DP,data plane DP,Design Postponement DPA,differential power analysis DPI,deep packet inspection dpi,dots per inch DPL,Digital Powerline DPM,data protection management DPMI,DOS Protected Mode Interface DR,disaster recovery DRA,data recovery agent DRaaS,disaster recovery as a service DRAM,Dynamic Random Access Memory DRBD,Distributed Replicated Block Device DRC,Design Rule Checking DRDRAM,Rambus Dynamic Random Access Memory DRIPS,data reduction in primary storage DRM,device relationship management DRM,Digital Rights Management DROP,delivery of real-time execution information protocol DRP,disaster recovery plan DRP,Distribution Requirements Planning DRS,Storage Distributed Resource Scheduler DSB,Dispute Settlement Body DSC,Digital Still Camera DSL,Domain-Specific Language DSLAM,Digital Subscriber Line Access Multiplexer DSLR,camera digital single lense reflux DSML,Directory Services Markup Language DSN,data source name DSN,Deep Space Network DSO,data source object DSO,Days Sale Outstanding DSO,exploit data source object exploit DSOM,Distributed System Object Model DSP,Digital Signal Processing DSP,Digital Signal Processor DSR,Demand signal repository DSR,Dynamic Source Routing DSRM,Directory Services Restore Mode DSRP,Demand Solutions Requirements Planning DSS,Decision Support System DSS,Digital Signature Standard DSSS,direct sequence spread spectrum DSSSL,Document Style Semantics and Specification Language DST,Daylight Saving Time DSTP,Data Space Transfer Protocol DTD,Document Type Definition DTE,Data Terminal Equipment DTE,Direct-to-Edit DTMF,dual tone multi frequency DTN,disruption-tolerant network DTP,Digital Text Platform DTP,Distributed Transaction Processing DTR,data transfer rate DTTV,digital terrestrial television DTV,digital television DTX,discontinuous transmission DUNDi,Distributed Universal Number Discovery Duqu,W32.Duqu DUT,Device Under Test DVB,Digital Video Broadcasting DVD,Digital Versatile Disk DVD,Digital Video Disk DVD-A,DVD-Audio DVI,Digital Visual Interface DVMRP,Distance Vector Multicast Routing Protocol DW,Data Warehousing DWDM,dense wavelength division multiplexing DXL,Domino Extensible Language E&M,ear and mouth E&O,Excess and Obsolete E-CD,enhanced CD E2E,exchange-to-exchange E2K,Exchange 2000 E911,Enhanced 911 EA,emotions analytics EA,enterprise architecture EaaS,encryption as a service EaaS,Ethernet as a service EAC,Exchange Administration Center EAI,enterprise application integration EAI,External Application Interface EAM,enterprise asset management EAP,employee assistance program EAP,Extensible Authentication Protocol EB,exabyte EBCDIC,Extended Binary Coded Decimal Interchange Code EBIF,Enhanced TV Binary Interchange Format EBITDA,"earnings before interest, taxes, depreciation, and amortization" EBPP,electronic bill presentment and payment EBR,Electronic Batch Record ebXML,electronic business xml EBXML,Electronic Business XML EC,Electronic Commerce EC,enterprise collaboration ECASS,silence machine or Electronic Controlled Acoustic Shadow System ECB,Electronic Code Book ECC,Elliptic Curve Cryptography ECC,Error Correction Code ECCS,European Cloud Computing Strategy ECDL,European Computer Driving License ECM,Engineering Change Management ECM,enterprise content management ECMAScript,European Computer Manufacturers Association Script ECN,Electronic Change Notice ECO,Engineering (or Electronic) Change Order ECOphlex,PHase-change Liquid EXchange ECPA,Electronic Communications Privacy Act ECR,Efficient Consumer Response ECRC,Electronic Commerce Resource Center EDA,Electronic Document Access EDA,event-driven architecture EDE,electronic disposal efficiency EDGAR,"Electronic Data Gathering, Analysis and Retrieval" EDGE,Enhanced Data GSM Environment EDI,Electronic Data Interchange EDIFACT,"Electronic Data Interchange for Administration, Commerce and Transport" EDL,enhanced driver's license EDM,Electrical Discharge Machine or Machining EDM,Electronic Document Management EDM,enterprise document management EDMS,Engineering Document Management Systems EDP,electronic data processing EDR,enterprise data replication EDRAM,enhanced dynamic random access memory EDRM,electronic discovery reference model EEF,Encyclopedia of Ethical Failure EEOC,Equal Employment Opportunity Commission EEPROM,electrically erasable programmable read-only memory EES,Engineering Execution Systems EES,Escrowed Encryption Standard EF,sensing electric field sensing EFF,Electronic Frontier Foundation EFI,Electronic Freight Invoice EFS,Encrypting File System EFT,Electronic Funds Transfer EGP,Exterior Gateway Protocol EHR,electronic health record EI,emotional intelligence EIA,Electronic Industries Association or Electronics Industries Alliance EIC,Earned Income Credit eICU,electronic intensive care unit EIDE,Enhanced Integrated Drive Electronics EIGRP,Enhanced Interior Gateway Routing Protocol EIM,Enterprise Identity Mapping EIM,enterprise information management eInk,E Ink EIP,enterprise information portal EIS,Executive Information System EISA,Extended Industry Standard Architecture EJB,Enterprise JavaBeans ELED,entangled light-emitting diode ELF,extremely low frequency ELM,event log manager ELMS,Event log management software ELT,"Extract, Load, Transform" ELV,End of Life Vehicle EMAS,Eco-Management and Audit Scheme EMC,Exchange Management Console EMCCA,EMC cloud architect certification EME,moonbounce or Earth-Moon-Earth EMET,Microsoft Enhanced Mitigation Experience Toolkit EMF,Enhanced MetaFile EMI,Early Manufacturing Involvement EMI,electromagnetic interference eMLC,enterprise MLC EMM,enterprise mobility management EMP,electromagnetic pulse EMR,electronic medical record EMS,Effective Management Systems EMS,Enhanced Messaging Service EMS,Microsoft Exchange Management Shell ENISA,European Network and Information Security Agency EOF,End of File EoIP,Electricity over IP EOL,"End of Life, End of Line" EOM,End of Message EOP,Microsoft Exchange Online Protection EOQ,Economic Order Quantity EPA,Microsoft Exchange Server Profile Analyzer EPC,Evolved Packet Core EPD,electronic paper display EPEAT,Electronic Product Environmental Assessment Tool EPG,electronic program guide ePHI,electronic protected health information EPIC,Electronic Privacy Information Center EPIC,Explicitly Parallel Instruction Computing EPOD,electronic publishing on demand EPOP,Ethernet point-of-presence EPP/ECP,Enhanced Parallel Port/Enhanced Capability Port EPR,endpoint reference ERA,Electronic Remittance Advice ERC,Engineering Reseach Center ERD,or ER diagram entity-relationship diagram ERM,enterprise relationship management ERM,enterprise resource management ERM,Environmental Resource Management ERM,Group Environmental Resource Management ERM,or ER model entity-relationship model ERMS,email response management service ERP,Enterprise Resource Planning ERS,Evaluated Receipt Settlement eRx,e-prescribing ESA,Enterprise Services Architecture ESB,enterprise service bus ESCD,Extended System Configuration Data ESCON,Enterprise Systems Connection ESD,electrostatic discharge ESDI,Enhanced Small Device Interface ESDRAM,Enhanced Synchronous DRAM ESE,Environmentally Sustainable Electronics ESI,electronically stored information ESMR,Enhanced Specialized Mobile Radio ESMTP,Extended Simple Mail Transfer Protocol ESP,event stream processing ESS,employee self-service ETL,"extract, transform, load" ETM,Enterprise Transportation Management ETO,Engineer To Order ETP,Enterprise Transportation Planning ETRN,Extended Turn ETSI,European Telecommunications Standards Institute EUC,platform end user computing platform EULA,End-User License Agreement EUTELSAT,European Telecommunications Satellite Organization EUVL,extreme ultraviolet lithography EV,Electric Vehicle EV-DO,1x Evolution-Data Optimized EVA,Economic Value Added EVM,Earned Value Management EWS,Exchange Web Services EWSD,Electronic Worldwide Switch Digital ExBPA,Exchange Best Practices Analyzer EXIF,Exchangeable Image File Format ExRCA,Exchange Remote Connectivity Analyzer EZ/EC,Empowerment Zone/Enterprise Community FA,Flexible Automation FACTA,Fair and Accurate Credit Transactions Act FAR,Federal Acquisition Regulation FAS,Final Assembly Schedule FASAB,Federal Accounting Standards Advisory Board FAT,File Allocation Table FAWN,fast array of wimpy nodes FBE,Framework Based Environment FC-AL,Fibre Channel Arbitrated Loop FC-PGA,Flip-Chip Pin Grid Array FCA,Flip Chip Assembly FCAPS,"fault-management, configuration, accounting, performance, and security" FCC,Federal Communications Commission FCIA,Fibre Channel Industry Association FCIP,Fibre Channel over IP FCoE,Fibre Channel over Ethernet FCP,Finite Capacity Planning FCR,first call resolution FCRA,Fair Credit Reporting Act FCS,Finite Capacity Scheduling FD,"Floppy Drive or File Descriptor" FDC,Floppy Disk Controller FDCC,Federal Desktop Core Configuration FDD,Floppy Disk Drive FDDI,Fiber Distributed Data Interface FDE,full-disk encryption FDHP,Full Duplex Handshaking Protocol FDI,Foreign Direct Investment FDIC,Federal Deposit Insurance Corporation FDM,frequency-division multiplexing FDMA,frequency division multiple access Feat,Feature FEC,forward error correction FECN,forward explicit congestion notification FED,field emission display FedRAMP,3PAO third-party assessment organization FedRAMP,Federal Risk and Authorization Program FEM,Finite Elements Method FERC,Federal Energy Regulatory Commission FERPA,Family Educational Rights and Privacy Act of 1974 FET,field-effect transistor FF,"Firefox (Web browser)" FFIEC,compliance Federal Financial Institutions Examination Council FFT,Fast Fourier Transformation FG-D,Feature Group D FHA,Federal Health Architecture FHIE,Federal Health Information Exchange FI,Fast Infoset FICON,Fiber Connectivity FIFO,"First In, First Out" FILO,"First In, Last Out" FIM,federated identity management FinCEN,Financial Crimes Enforcement Network FINRA,Financial Industry Regulatory Authority FiOS,Fiber Optic Service FIP,Factory Information Protocol FIP,Fair Information Practices FIPS,Federal Information Processing Standards FIS,Factory Information System FISMA,Federal Information Security Management Act FITCE,Federation of Telecommunications Engineers of the European Community FLAC,Free Lossless Audio Codec FLOPS,Floating-Point Operations Per Second FLSA,Fair Labor Standards Act FLSM,fixed-length subnet mask FLT,Fermat's Last Theorem FM,Frequency Modulation FMAC,Flexible Mandatory Access Control FMC,fixed-mobile convergence FME,Feature Manipulation Engine FMEA,Failure Mode and Effect Analysis FMP,FileMaker FMS,fixed-mobile substitution FMS,Flexible Manufacturing System FMV,Full Motion Video FNBN,For Nerds By Nerds FNEA,Full Name and E-mail Address FnR,Find and replace FNR,Format and Restore FOAD,Fuck Off And Die FOB,fresh out of the box FOIA,Freedom of Information Act FOIRL,Fiber-Optic Inter-Repeater Links FOLED,flexible organic light emitting device FOPE,Forefront Online Protection for Exchange FORTRAN,The IBM Mathematical FORmula TRANslating System (a programming language) FOSS,Free and Open-Source Software FOV,Field Of View FP&A,financial planning and analysis FP,"Fat Provisioning, Finite Planning" FP4,Floating Point 4-bit datatype FP8,Floating Point 8-bit datatype FP16,Floating Point 16-bit datatype FP32,Floating Point 32-bit datatype FP64,Floating Point 64-bit datatype FPCA,Foreign Corrupt Practices Act FPDS,Federal Procurement Data System FPGA,Field-Programmable Gate Array FPI,Federal Prison Industries FPM,Fast Page Mode FPM,federated presence management FpML,Financial Products Markup Language FPP,Full Packaged Product FPROM,Field Programmable Read-Only Memory FPS,First-Person Shooter fps,Frames Per Second FPT,Fine Pitch Technology FPU,Floating-Point Unit FQA,Frequently Questioned Answers FQDN,Fully Qualified Domain Name FR,Frame Relay FRA,Federal Railroad Administration FRAD,frame relay access device or frame relay assembler/dissembler FRAM,Ferroelectric RAM FRCP,Federal Rules of Civil Procedure FROG,Free Roaming On Grid FRR,fast retransmit and recovery FRT,Future Reality Tree FRU,Field Replaceable Units FS,File System FSAN,Full Services Access Network FSB,frontside bus FSF,Free Software Foundation FSK,frequency-shift keying FSML,Financial Services Markup Language FSO,free-space optics FSP,full-service provider FSRM,File Server Resource Manager FTA,Federal Transit Authority FTAM,File Transfer Access Method FTC,Federal Trade Commission FTP,File Transfer Protocol FTTC,fiber to the curb FTTH,fiber to the home FTTx,fiber to the x FUD,"Fear, Uncertainty, and Doubt" FUN,focus on user needs FYI,for your information G2G,Government to Government G2C,Government to Consumer GAAP,Generally Accepted Accounting Principles GAAP,generally accepted accounting standards GaAs,gallium arsenide GaAsFET,gallium arsenide field-effect transistor GAL,Microsoft Exchange Global Address List GALP,Good Automated Laboratory Practices GaN,gallium nitride GAN,Generic Access Network GAO,General Accounting Office GAO,Government Accountability Office GARP,Generic Attribute Registration Protocol GATE,General Architecture for Text Engineering GATS,General Agreement on Trade in Services GATT,General Agreement on Tariffs and Trade GB,gigabyte GBIC,Gigabit Interface Converter Gbps,billions of bits per second Gbps,Gigabits per second GCC,GNU Compiler Collection GDDR,Graphics Double Data Rate GDI,Graphics Device Interface GDMO,Guidelines for Definition of Managed Objects GDPR,General Data Protection Regulation GEM,Generic Equipment Model GEM,Graphics Environment Manager GEOS,Graphical Environment Operating System GESTALT,Grid-based Estimation of Surface Traversability Applied to Local Terrain GFDL,GNU Free Documentation License GFEBS,General Fund Enterprise Business System GFS,"Global File System or Google File System" GHz,gigahertz GIA,Government Information Awareness GID,group ID or global index file GIF,Graphics Interchange Format GIF89a,Graphics Interchange Format Version 89a GIGO,Garbage In Garbage Out GII,global information infrastructure GIMP,GNU Image Manipulation Program GIMPS,Great Internet Mersenne Prime Search GIS,Geographic Information System GIS,Google Image Search GIYF,Google Is Your Friend GKS,Graphical Kernel System GL,general ledger GLBA,Gramm-Leach-Bliley Act GLONASS,Globalnaya Navigatsionnay Sputnikovaya Sistema GlusterFS,Gluster File System GLUT,OpenGL Utility Toolkit GLV,grating light valve GMAIL,Google Mail GML,Generalized Markup Language GMP,Good Manufacturing Practices GMPLS,Generalized Multiprotocol Label Switching or Multiprotocol Lambda Switching GMROI,Gross Margin Return on Investment GNEC,Global Network Enterprise Construct GNOME,GNU Network Object Model Environment GNSS,Global Navigation Satellite System GNU,GNU's Not Unix gOS,good operating system GP,Group Policy GPF,General Protection Fault GPG,GNU Privacy Guard GPL,GNU General Public License GPMP,General Purpose Macro Processor GPO,Group Policy Object GPRS,General Packet Radio Services GPS,Global Positioning System GPT,"GUID Partition Table or Generative Pretrained Transformer" GPU,Graphics Processing Unit GRC,"governance, risk management and compliance" GRE,Generic Routing Encapsulation GRUB,GRand Unified Bootloader GSM,Global System for Mobile communication GSM,Microsoft System Center Global Service Monitor GTA,Grand Theft Auto (a computer game) GTAG,Global Tag gTLD,generic top-level domain name GTM,strategy go-to-market strategy GUA,graphical password or graphical user authentication GUI,Graphical User Interface GUID,global unique identifier GUM,Global Update Manager GWAC,governmentwide acquisition contract GXA,Global XML Web Services Architecture GXF,General Exchange Format GXL,Graph eXchange Language Gy,gray HA,high availability HaaS,Hardware as a Service HAL,hardware abstraction layer HALO,High Altitude Long Operation HANA,SAP HANA HASA,Highly Accelerated Stress Audit HAVA,Help America Vote Act of 2002 HAVi,Home Audio Visual HBA,host bus adapter HBCI,Home Banking Computer Interface HCCA,Health Care Compliance Association HCI,human-computer interaction HCI,Human-Computer Interaction/Interface HCM,human capital management HD-DVD,high-density DVD HD-ROM,High-Density - Read Only Memory HDCD,High Definition Compatible Digital HDCP,High-bandwidth Digital Content Protection HDD,hard disk drive HDFS,Hadoop Distributed File System HDLC,High-level Data Link Control HDMI,High Definition Multimedia Interface HDMI,High-Definition Multimedia Interface HDML,Handheld Device Markup Language HDR,Hard disk recorder HDSL,High bit-rate Digital Subscriber Line HDTV,High-Definition Television HFC,hybrid fiber coaxial HFT,high-frequency trading HFTP,Hospitality Financial and Technology Professionals HH,Hand Held HHD,hybrid hard drive HHR,hybrid health record HHS,Health and Human Services HID,Human Interface Device HIE,health information exchange HIMSS,Healthcare Information and Management Systems Society HIPAA,Health Insurance Portability and Accountability Act HIPPI,High-Performance Parallel Interface HiPPO,"highest paid person's opinion, highest paid person in the office" HIPS,host intrusion prevention systems HIT,Health IT HITA,Hospitality Information Technology Association HITECH,Act Health Information Technology for Economic and Clinical Health Act HKEY,Handle to Registry Key HLASM,High Level Assembler HLD,hardware load-balancing device HLR,Home Location Register HMAC,Hash-based Message Authentication Code HMD,Head Mounted Display HMI,Human Machine Interface HMIPv6,Hierarchical Mobile IPv6 HMM,Hidden Markov Model HOLAP,hybrid online analytical processing HomeRF,home radio frequency HP,High Performance HP-GL,Hewlett-Packard Graphics Language HPC,High-Performance Computing HPCC,High Performance Computing and Communications HPFS,High Performance File System HPNA,Home Phoneline Networking Alliance HPPS,High Performance Product Sector HPSS,High Performance Storage System HPV,High Production Volume HR,Human Resources HRM,Human Resource Management HSCSD,High-Speed Circuit-Switched Data HSDPA,High-Speed Downlink Packet Access HSM,Hierarchical Storage Management HSM,Hierarchical Storage Manager HSPA,high speed packet access HSPD-7,Homeland Security Presidential Directive No. 7 HSRP,Hot Standby Router Protocol HSSI,High-Speed Serial Interface HTF,Higgins Trust Framework HTML,Hypertext Markup Language HTTP,Hypertext Transfer Protocol HTTPD,Hypertext Transfer Protocol daemon HTTPS,HTTP over SSL or HTTP Secure HUD,Heads Up Display HVAC,"heating, ventilation, and air conditioning" HVD,holographic versatile disc HVD,hosted virtual desktop I&T,integration testing or integration and testing I/O,Input Output I18N,internationalization IA,internal audit IaaS,Infrastructure as a Service IAB,Internet Advertising Bureau IAB,Internet Architecture Board IAM,identity access management IAM,integrated access management IANA,Internet Assigned Numbers Authority IAO,Information Awareness Office IAP,Internet access provider IAS,"IAS machine (the first electronic computer built at the Institute for Advanced Study), Interactive Application System (a DEC PDP-11 operating system), Internet Authentication Service (a component of Windows Server)" IAX,Inter-Asterisk Exchange Protocol IBM,International Business Machines IBP,integrated business planning IC,integrated circuit IC-BPMS,integration-centric business process management suite ICANN,Internet Corporation for Assigned Names and Numbers ICE,"In-Circuit Emulator, Information and Content Exchange" IcM,incident management ICMP,Internet Control Message Protocol ICP,Internet commerce provider ICR,intelligent character recognition ICT,information and communications technology - or technologies ICT4D,Information and Communications Technologies for Development ID,intrusion detection IDaaS,identity as a Service IDE,Integrated Development Environment IDE,Integrated Drive Electronics IDEA,International Data Encryption Algorithm IDEF,Integrated Definition iDEN,Integrated Digital Enhanced Network IDF,interface device IDIS,Integrated Disbursement and Information System IDL,interface definition language IDoc,intermediate document IDS,intrusion detection system IE,Internet Explorer IEAK,Internet Explorer Administration Kit IEC,International Electrotechnical Commission IEEE,Institute of Electrical and Electronics Engineers IETF,Internet Engineering Task Force iFCP,Internet Fibre Channel Protocol IG,Inspector General IGMP,Internet Group Management Protocol IGP,Interior Gateway Protocol iHT2,Institute for Health Technology Transformation IIOP,Internet Inter-ORB Protocol IIS,Internet Information Server IKE,Internet Key Exchange ILEC,incumbent local exchange carrier ILM,information life cycle management IM,infrastructure management IMA,inverse multiplexing over ATM IMAP,Internet Message Access Protocol IMCS,nventory Management and Control System IMEI,International Mobile Equipment Identity IMS,Information Management System IMS,Intelligent Manufacturing Systems IMS,IP Multimedia Subsystem IMT,International Mobile Telephone IMTI,Integrated Manufacturing Technology Initiative IN,Intelligent Network InterNIC,Internet Network Information Center IOPS,Input/Output Operations Per Second IOS,Input/Output Supervisor IoT,Internet of Things IOTP,Internet Open Trading Protocol IOV,I/O virtualization IP,Internet Protocol IPAM,IP address management IPC,Institute for Interconnecting and Packaging Electronic Circuits IPC,interprocess communication IPFS,InterPlanetary File System IPI,Intelligent Peripheral Interface IPL,initial program load IPLC,international private leased circuit IPM,intelligent power management IPMI,Intelligent Platform Management Interface IPP,Internet presence provider IPPD,Integrated Product and Process Development IPPP,Internet presence provider and promoter IPR,Intellectual Property Rights IPS,In-Plan Switching IPsec,Internet Protocol Security IPT,Integrated Product Team IPTV,Internet Protocol television IPv4,Internet Protocol Version 4 IPv6,Internet Protocol Version 6 IPX,Internetwork Packet Exchange IR,infrared radiation IRC,Internet Relay Chat IrDA,Infrared Data Association IRI,Industrial Research Institute IRIS,Internet Routing in Space IRM,Integrated Resource Management IRP,incident response plan IRQ,interrupt request IRR,internal rate of return IRTF,Internet Research Task Force IRU,Indefeasible Right of Use IS,Information System IS,information system or information services IS-IS,Intermediate System-to-Intermediate System protocol ISA,Industry Standard Architecture ISAM,Indexed Sequential Access Method ISAPI,Internet Server Application Program Interface iSCSI,Internet Small Computer System Interface iSCSI,target Internet Small Computer System Interface target ISDN,Integrated Services Digital Network ISE,Cisco Identity Services Engine ISP,Internet Service Provider ISPF,Interactive System Productivity Facility ISRC,International Standard Recording Code ISRS,information storage and retrieval system ISSU,in-service software upgrade ISV,Independent Software Vendor IT,Information Technology ITAA,Information Technology Association of America ITaaS,IT as a Service ITAC,International Telework Association and Council ITIL,Information Technology Infrastructure Library ITS,Intelligent Transportation System ITS,Internet Transaction Server ITS,issue tracking system ITSM,IT Service Management ITSO,International Technical Support Organization ITSS,Information Technology Solutions Shop ITU,International Technical Union ITU,International Telecommunication Union IV,initialization vector IVR,Interactive Voice Response IXC,interexchange carrier J2EE,"Java 2 Platform, Enterprise Edition" J2ME,"Java 2 Platform, Micro Edition" JAAS,Java Authentication and Authorization Service JAD,Joint Application Development JANET,Joint Academic Network JAQL,json query language JAR,Java ARchive file JAX-RPC,Java API for XML-Based RPC JAX-WS,Java API for XML Web Services JBI,Java Business Integration JBIG,Joint Bi-level Image Experts Group JBOD,just a bunch of disks or just a bunch of drives JCE,Java Cryptography Extension JCL,job control language JDBC,Connector Java Database Connectivity Connector JDBC,Java Database Connectivity JDK,Java Development Kit JDO,Java Data Objects JEDEC,Joint Electron Device Engineering Council JeOS,just enough operating system JES,Job Entry Subsystem JFC,Java Foundation Classes JFET,Junction Field-Effect Transistor JHTML,Java within Hypertext Markup Language JIC,manufacturing just-in-case manufacturing JMS,Java Message Service JMX,Java Management Extensions JNDI,Java Naming and Directory Interface JOBS,Act Jumpstart Our Business Startups Act JOLAP,Java Online Analytical Processing JPEG,Joint Photographic Experts Group JRE,Java Runtime Environment JSML,Java Speech API Markup Language JSON,Javascript Object Notation JSP,Java Server Page JTAPI,Java Telephony Application Programming Interface JVM,Java virtual machine JXTA,juxtaposed K6,AMD-K6 KB,kilobyte KBA,knowledge-based authentication KBE,Knowledge-Based Engineering Kbps,kilobits per second KBW,keyboard wedge KDE,K Desktop Environment KGD,Known Good Die KISS,"Keep It Simple, Stupid" KLOC,thousands of lines of code KM,knowledge management KMD,Kazaa Media Desktop KML,Keyhole Markup Language KPI,Key Performance Indicator KRI,key risk indicator KVM,kernel-based Virtual Machine KVP,key-value pair KW,Knowledge Warehouse l10n,localization L2TP,Layer 2 Tunneling Protocol L2TP,Layer Two Tunneling Protocol LAMP,"Linux, Apache, MySQL, PHP" LAN,Local Area Network LAR,Large Account Reseller LATA,local access and transport area LBA,logical block addressing LBM,location-based marketing LBO,leveraged buyout LBS,location-based service LCA,Life Cycle Assessment LCC,Leadless Chip Carrier LCC,limited combustible cable LCD,Liquid Crystal Display LCL,Less Than Container Load LCP,Link Control Protocol LCPC,Life Cycle Product Cost LDAP,Lightweight Directory Access Protocol LDCM,LANDesk Client Manager LDD,locked down device LDIF,Lightweight Directory Interchange Format LDMOS,Laterally Diffused MOS transistor LDQ,longest delay in queue LDSI,Laboratory Data Sharing Interoperability LEAP,Lightweight Extensible Authentication Protocol LEC,local exchange carrier LED,light-emitting diode LEED,Leadership in Energy and Environmental Design LES,Logistics Execution System Lex,lexical analyzer generator LHC,Large Hadron Collider LI,lawful interception LI,location intelligence Li-Ion,Lithium Ion battery LIDB,line information database LILO,LInux LOader LINQ,Language Integrated Query LISP,list processing LLM,Large Language Model LLVM,Compiler Infrastructure (Low Level Virtual Machine) LMDS,Local Multi-Point Distribution System LMGTFY,Let Me Google That For You LMOF,last mile of finance LMS,learning management system LNA,Local Noise Amplifier LNP,Local Number Portability LOB,line-of-business LOC,Lines Of Code LOINC,Logical Observation Identifiers Names and Codes LOM,lights-out management LP,Lean Production LPAR,logical partition LPT,line print terminal LQSR,Link Quality Source Routing LRN,Location Routing Number LSA,Local Security Authority LSB,Linux Standard Base LSI,Large Scale Integration LTC,longitudinal time code LTE,Long Term Evolution LTFS,Linear Tape File System LTL,Less Than Truckload LTO,Linear Tape-Open LTS,Long Term Support LU,logical unit LUN,logical unit number LVS,Layout Verification Systems M&A,mergers and acquisitions M&O,Management and Operations M&S,Modeling and Simulation M2M,Machine to Machine M3U,Moving Picture Experts Group Audio Layer 3 MAC,mandatory access control MAC,message authentication code MAD,Mobile Active Defense MADE,Manufacturing Automation and Design Exploration MAID,massive array of idle disks MAM,mobile application management MAM,mobile application manager MAN,metropolitan area network MAPI,Messaging Application Program Interface MAU,media attachment unit MB,megabyte MBean,managed bean MBone,Multicast Internet MBps,megabytes per second Mbps,millions of bits per second or megabits per second MBR,Master Boot Record MC,Mass Customization MCA,Micro Channel Architecture MCA,Microsoft Connectivity Analyzer MCE,Microsoft Certified Educator MCL,Mesh Connectivity Layer MCM,multi-carrier modulation Mcps,megachips per second MCS,Manufacturing Control System MCSA,Microsoft Certified Solutions Associate MCSD,Microsoft Certified Solution Developer MCSE,Microsoft Certified Systems Engineer MDB,multidimensional database MDD,model-driven development MDI,Multiple Document Interface MDM,master data management MDM,mobile device management MDOP,Microsoft Desktop Optimization Pack MDP,Multicast Dissemination Protocol MDRAM,Multibank Dynamic RAM MDX,multidimensional expressions MEAP,mobile enterprise application platform MEMS,Micro-electromechanical Systems MEP,Manufacturing Extension Partnership MES,Manufacturing Execution System MESA,Manufacturing Execution System Association MFA,multifactor authentication MFP,multifunction peripheral MFSK,multiple frequency shift keying MFT,managed file transfer MFT,master file table MGCP,Media Gateway Control Protocol MHP,Multimedia Home Platform MIB,management information base MIC,microwave integrated circuit MICR,magnetic ink character recognition MID,mobile Internet device MIDI,Musical Instrument Digital Interface MIM,mobile information management MIME,Multi-Purpose Internet Mail Extensions MIMO,"multiple input, multiple output" MIPS,million instructions per second MIS,management information systems MISO,"multiple input, single output" MLA,mobile location analytics MLC,multi-level cell MMC,Microsoft Management Console MMC,mobile-to-mobile convergence MMC,MultiMediaCard MMDS,Multichannel Multipoint Distribution Service MMI,Man Machine Interface MMIS,Maintenance Management Information System MMP,multichassis multilink PPP MMS,Manufacturing Message Specification MMS,Multimedia Messaging Service MMU,memory management unit MO,magneto-optical drive moblog,mobile blog MOF,Microsoft Operations Framework MOL,middle of life MOLAP,"multidimensional online analytical processing" MOM,Manufacturing operation management MOOC,massive open online course MOS,mean opinion score MOSFET,metal-oxide semiconductor field-effect transistor MOSH,mobile shell MOSPF,Multicast Open Shortest Path First MOSS,Microsoft Office SharePoint Server MOU,memorandum of understanding MOVE,Aruba's Mobile Virtual Enterprise MP3,MPEG-1 Audio Layer-3 MPEG,Moving Picture Experts Group MPI,master patient index MPI,message passing interface MPIO,Multipath I/O MPLS,Multiprotocol Label Switching mPOS,mobile point of sale MPP,massively parallel processing MPPE,Microsoft Point-to-Point Encryption MPS,managed print services MPS,Master Production Schedule MR-IOV,Multi-Root IOV MRAM,magnetoresistive random access memory MRI,magnetic resonance imaging MRP,Manufacturing Resource Planning MrSID,Multi-resolution Seamless Image Database MS-DOS,Microsoft Disk Operating System MSAU,multistation access unit MSBF,mean-swap-between-failure MSCMDM,Microsoft System Center Mobile Device Manager MSCS,Microsoft Cluster Server MSDOS,Microsoft Disk Operating System MSDS,Material Safety Data Sheet MSE,Microsoft Security Essentials MSP,managed service provider MSP,management service provider MSRP,Message Session Relay Protocol MSS,managed security services MSS,maximum segment size MSS,mobile satellite services MSSP,managed security service provider MT,medical transcription MTO,Make To Order Mtops,million theoretical operations per second MTPOD,maximum tolerable period of disruption MTS,Make To Stock MTS,medical transcription software MTS,Microsoft Transaction Server MTU,maximum transmission unit MUA,mail user agent MUD,Multi-User Dungeon Multics,Multiplexed Information and Computing Service MULTOS,Multiple Operating System mutex,mutual exclusion object MV,machine vision MVA,Microsoft Virtual Academy MVC,model-view-controller MVMC,Microsoft Virtual Machine Converter MVNO,mobile virtual network operator MVP,Microsoft Most Valuable Professional MVS,Multiple Virtual Storage NaaS,network-as-a-service NAC,network access control NACHA,National Automated Clearing House Association NAHIT,National Alliance for Health Information Technology NAK,negative acknowledgment or not acknowledged NAP,Microsoft Network Access Protection NAP,network access point NAS,"Network Access Server, Network-Attached Storage" NAT,Network Address Translation NBA,network behavior analysis NBAD,network behavior anomaly detection NBAR,Network Based Application Recognition NBMA,non-broadcast multiple access NC,network computer NCA,native cloud application NCFA,National Call Fee Access NCM,network configuration management NCMS,National Center for Manufacturing Sciences NCQ,Native Command Queuing NCSC,National Computer Security Center NCVHS,National Committee on Vital and Health Statistics NDA,non-disclosure agreement NDIS,Network Driver Interface Specification NDMP,Network Data Management Protocol NDS,Novell Directory Services NECP,National Emergency Communications Plan NED,nano-emissive display NEDSS,National Electronic Disease Surveillance System NERC,North American Electric Reliability Corporation NetBEUI,NetBIOS Extended User Interface NetBIOS,Network Basic Input/Output System NetPC,Network PC NeXT,near-end crosstalk NFC,Near Field Communication NFT,Non-Fungible Token NFR,not for resale NFS,Network File System NFTS,national file tracking system NFV,network functions virtualization NGFW,next-generation firewall NGSCB,Next Generation Secure Computing Base NHII,National Health Information Infrastructure NHIN,Nationwide Health Information Network NHRP,Next Hop Resolution Protocol NI,Network Intelligence Ni2,Net indexer 2 NIAP,National Information Assurance Partnership NIC,Network Interface Card NIC,network interface card NiCd,Nickel-Cadmium battery NiMH,Nickel-Metal Hydride battery NIS,Network Information System NIST,National Institute of Standards and Technology NJE,Network Job Entry NLM,National Library of Medicine NLP,natural language processing NMTA,National Machining and Tooling Association NNI,National Nanotechnology Initiative NNM,Network Node Manager NNTP,Network News Transfer Protocol NOC,Network Operations Center noop,No Operation NOS,Network Operating System NoSQL,Not Only SQL NPC,Non-Player Character (in role-playing games) NPD,New Product Development NPE,Non-Practicing Entity NPI,National Provider Identifier NPI,New Product Introduction NPIV,N_Port ID virtualization NPV,Net present value NQF,National Quality Forum NRLA,National Labor Relations Board NRZ,non-return-to-zero NSAP,Network Service Access Point NSAPI,Netscape Server Application Programming Interface NSIS,Next Steps in Signaling NSP,network service provider NT1,network terminator 1 NTIA,"(U.S.) National Telecommunications and Information Administration" NTFS,New Technology File System NTP,Network Time Protocol NTR,Normal Trade Relations NTS,Number Translation Service NTSC,National Television Standards Committee NTU,nuclear time unit NUI,natural user interface NUMA,non-uniform memory access NURBS,nonuniform rational B-spline NUS,network unified storage NVGRE,Network Virtualization using Generic Routing Encapsulation NVLAP,National Voluntary Laboratory Accreditation Program NVMe,non-volatile memory express NVS,nonvolatile storage NWR,NOAA Weather Radio O2O,Online to Offline OA&M,"operations, administration, and management" OAB,offline address book OASIS,Organization for the Advancement of Structured Information Standards OBI,Open Buying on the Internet OCC,Office of the Comptroller of the Currency OCM,organizational change management OCNCC,Oracle Communications Network Charging and Control OCR,optical character recognition OCSP,Online Certificate Status Protocol OCW,MIT OpenCourseWare OCx,Optical Carrier levels ODBC,Open Database Connectivity ODCA,Open Data Center Alliance ODF,Open Document Format ODI,Open Data-Link Interface ODIN,"Open Data Center with an Interoperable Network, Open Device Identification Number" ODL,Open and Distance Learning ODM,Original Design Manufacturer ODMA,Open Document Management API or Application Program Interface ODMR,On-Demand Mail Relay ODP,Open Directory Project ODS,operational data store ODS,Ozone Depleting Substance ODX,Offloaded Data Transfer OEBF,Open Electronic Book Forum OFB,output feedback OFDM,orthogonal frequency-division multiplexing OGSA,Open Grid Services Architecture OHA,Open Handset Alliance OID,object ID OLA,operational level agreement OLAP,online analytical processing OLE,Object Linking and Embedding OLPC,One Laptop Per Child OLT,optical line terminal OLTP,On Line Transaction Processing OMAP,Open Multimedia Application Platform OMG,Object Management Group OMSS,Oracle Mobile Security Suite ONF,Open Networking Foundation OODBMS,object-oriented database management system OoOE,out-of-order execution OOP,object-oriented programming OOPSLA,"Object-Oriented Programming Systems, Languages and Applications" OOXML,Office Open Extended Markup Language OPC,OLE for Process Control OpenGL,Open Graphics Library OpenNMS,Open Network Management System OpenVPN,open source virtual private network Opex,operational expenditure OPM,operational performance management OPML,Outline Processor Markup Language OPS,Open Profiling Standard OPT,Optimized Production Technology ORB,Object Request Broker ORBS,Open Relay Behavior-modification System ORM,object-relational mapping OS,operating system OSA,Open System Authentication OSBI,open source business intelligence OSD,object storage device OSDL,Open Source Development Labs OSF,Open Software Foundation OSGi,Open Service Gateway Initiative OSI,Open Systems Interconnection OSP,online service provider OSP,Open Settlement Protocol OSPF,Open Shortest Path First OSS,"Online Service System, Open Source Software, Operational Support System, Off-the-shelf Software Support" OTA,Over the Air OTC,order to cash OTCR,On-Time delivery performance to Customer Request Date OTFT,organic thin-film transistor OTM,Optivity Telephony Manager OTP,one-time password OU,organizational unit OVSDB,Open vSwitch Database Management Protocol OWA,Microsoft Outlook Web App OWASP,Open Web Application Security Project OWD,OneWebDay P&L,profit and loss statement P-Ink,photonic ink P2P,"path to profitability,Peer to Peer,procure to pay" P2T,Push to Talk P2V,physical to virtual P3P,Platform for Privacy Preferences P4,Pentium 4 P4P,proactive provider participation for P2P PA,Power Amplifier PA-DSS,Payment Application Data Security Standard PaaS,Platform as a Service PABX,private automatic branch exchange PAC,Production Activity Control PACS,Personal Access Communications System PACS,picture archiving and communication system PAIR,Policy Analysis of Internet Routing PAL,Phase Alternation Line PAM,"partner account manager, pulse amplitude modulation" PAN,personal area network PAP,Packet-Level Procedure PAR,performance and accountability reporting PARC,Palo Alto Research Center PAT,Port Address Translation PBD,physical block device PBT,"Persistent, Bioaccumulative and Toxic" PBX,private branch exchange PC,Personal Computer PC,project charter PC-DOS,Personal Computer - Disk Operating System PCAOB,Public Company Accounting Oversight Board PCB,printed circuit board PCE,Path Computation Element PCEP,Path Computation Element Protocol PCI,Peripheral Component Interconnect PCI-X,Peripheral Component Interconnect Extended PCL,Printer Control Language PCM,phase-change memory PCM,pulse code modulation PCMCIA,Personal Computer Memory Card International Association PCRF,Policy and Charging Rules Function PCS,personal cloud storage PCS,personal communications service PDA,personal digital assistant PDF,Portable Document Format PDL,page description language PDM,Product Data Management PDP-11,Programmed Data Processor-11 PDU,power distribution unit PEAP,Protected Extensible Authentication Protocol PEBCAK,problem exists between chair and keyboard pel,picture element PERT,Program Evaluation Review Technique PF,prefetch folder PFC,power factor correction or power factor controller PGP,Pretty Good Privacy PHDSC,Public Health Data Standards Consortium PHI,personal health information PHOLED,phosphorescent organic light-emitting device PHP,"Hypertext Preprocessor, Personal Home Page" PHR,personal health record PHS,Personal Handyphone System PI,Predictive Index PI,Principal Investigator PIA,privacy impact assessment PIC,port interface card PICK,"Possible, Implement, Challenge and Kill" PICS,Platform for Internet Content Selection PICTIVE,Plastic Interface for Collaborative Technology Initiatives through Video Exploration PID,Problem Identification Document PID,process identifier PIFI,personally identifiable financial information PII,personally identifiable information PIM,"privileged identity management, processing in memory, Product Information Management, protocol-independent multicast" PIO,Programmed Input/Output PIP,"Partner Integration Process, Picture in Picture" PIV,personal identity verification PKCS,Public-Key Cryptography Standards PKI,public key infrastructure PL/S,Programming Language/System PL/SQL,procedural language extension to Structured Query Language PLATO,Programmed Logic for Automatic Teaching Operations PLC,packet loss concealment PLEDM,phase-state low electron drive memory PLL,phase-locked loop PLM,Product Lifecycle Management PLMN,public land mobile network PM,phase modulation PMI,"plus, minus, interesting" PML,Portal Markup Language PMML,Predictive Model Markup Language PMO,Project Management Office PMP,Project Management Professional PMS,package manager or package management system PN,programmable network pNFS,Parallel NFS PNG,Portable Network Graphics PnP,Plug and Play POC,Packet Order Correction POC,proof of concept PoE,Power over Ethernet PoIP,Pray over Internet Protocol POLP,principle of least privilege POM,Production/Operations Management PON,passive optical network POP,point-of-presence POP3,Post Office Protocol 3 PoR,power-on reset POS,"personal operating space, Point of Sale" POSIX,Portable Operating System Interface POST,Power-On Self-Test POTS,plain old telephone service PP&E,"Property, Plant & Equipment" PPD,parallel presence detect PPD,post-processing deduplication PPD,Postscript Printer Description file PPGA,plastic pin grid array ppi,pixels per inch PPM,"Pages per minute (a measurement of printing speed), Perl package manager (for software packages), Prediction by partial matching (a data compression technique), project and portfolio management" PPP,Point-to-Point Protocol PPPoE,Point-to-Point Protocol over Ethernet PPTP,Point-to-Point Tunneling Protocol PR,"Problem Report, Process Reengineering" PRI,Primary Rate Interface PRM,partner relationship management PRNG,pseudo-random number generator PROM,programmable read-only memory PRONet,Procurement Marketing and Access Network PRS,Personal Response System PRS,Premium Rate Service PRSA,Public Relations Society of America PRT,Pre-requisite Tree PSA,professional services automation PSK,phase-shift keying PSN,processor serial number PSOD,Purple Screen of Death PSS,Personal Search Syndication PSTN,public switched telephone network PTAC,Procurement Technical Assistance Center PTF,program temporary fix PTO,Patent and Trademark Office PTT,Push to Talk PU,physical unit PUE,power usage effectiveness PUP,potentially unwanted program PVC,permanent virtual circuit PVM,Parallel Virtual Machine PVR,personal video recorder PWS,Personal Web Server PXE,Preboot Execution Environment QA,Quality Assurance QAM,quadrature amplitude modulation QB,Quality Breakdown QBE,Query by Example QC,Quality Control QD,Quantum Dots QDOS,86-DOS QFE,Quad FastEthernet QFE,Quick Fix Engineering QFP,Quad Flat Package qHD,quarter high definition QIX,NASDAQ Information Exchange protocol QoE,Quality of Experience QoS,Quality of Service QPS,queries-per-second QR,Quick Response QSA,Qualified Security Assessor QSIG,Q signaling QVGA,Quarter Video Graphics Array QXGA,Quantum Extended Graphics Array R&D,Research and Development R3,"Reduce, reuse, recycle" RA,registration authority RAC,Real Application Cluster RACE,Rapid Access Computing Environment RACF,Resource Access Control Facility RAD,Rapid Application Development RADIUS,Remote Authentication Dial-In User Service RAF,Risk Assessment Framework RAG,Retrieval Augmented Generation RAID,Redundant Array of Independent Disks RAIN,redundant/reliable array of inexpensive/independent nodes RAM,Random Access Memory RAMAC,Random Access Method of Accounting and Control RAMDAC,Random Access Memory dDgital-to-analog Converter RAND,reasonable and nondiscriminatory RAP,Revenue Acquisition Process RARP,Reverse Address Resolution Protocol RAS,"Registration,Admission and Status, or Reliability,Availability and Serviceability, or Remote Access Server, row address strobe" RAT,Remote Access Trojan RBA,Risk-Based Authentication RBAC,Role-Based Access Control RBOC,Regional Bell Operating Company RCE,Remote Code Execution RCP,Rich Client Platform RD,Running Disparity RDBMS,Relational DataBase Management System RDC,Remote Deposit Capture RDF,Resource Description Framework RDM,Raw Device Mapping RDMA,Remote Direct Memory Access rDNS,Reverse DNS RDO,Remote Data Objects RDP,Remote Desktop Protocol RDRAM,Rambus Dynamic Random Access Memory RDS,Amazon Relational Database Service RDS,Radio Data System RDS,Remote Desktop Services RDT&E,"Research, Development, Testing & Evaluation" REC,Regional Extension Center ReFS,Resilient File System regex,regular expression REST,REpresentational State Transfer RF,Radio Frequency RFC,Remote Function Call RFC,Request for Comments RFI,request for information RFID,Radio Frequency IDentification RFO,Request for Offer RFP,Request for Proposal RFQ,Request for Quotation RFR,Red Flags Rule RGB,"red, green, and blue" RHCVA,Red Hat Certified Virtualization Administrator RHEL,Red Hat Enterprise Linux RHEV,Red Hat Enterprise Virtualization RHIA,Registered Health Information Administrator RHIO,Regional Health Information Organization RHIT,Registered Health Information Technician RHS,Red Hat Storage RIA,Rich Internet Application RIAA,Recording Industry Association of America RIBLOE,Remote Insight Board -- Lights Out Edition RID,Relative IDentifier RIM,"Records Information Management, or: Reference Information Model" RIP,"Raster Image Processor, or: Routing Information Protocol" RIR,Regional Internet Registry RIS,"Radiology Information System, or: Remote Installation Service" RISC,Reduced Instruction Set Computer RJE,Remote Job Entry RMA,Return Material (or Merchandise) Authorization RMI,Remote Method Invocation RMM,Remote Monitoring & Management RMON,Remote Network Monitoring RMS,root-mean-square RNAAPP,Remote Network Access Application RNIS,Reseau Numerique a Integration de Services ROA,Resource-Oriented Architecture ROADM,Reconfigurable Optical Add-Drop Multiplexer ROC,Report on Compliance ROD,Reuse-Oriented Model or Reuse-Oriented Development RODC,Read-Only Domain Controller RoHS,Restriction of Hazardous Substances ROI,Return On Investment ROIC,Return On Invested Capital ROKSO,Register of Known Spam Operations ROLAP,Relational Online Analytical Processing ROM,Read-Only Memory ROMI,Return On Marketing Investment RONA,Return On Net Assets ROP,Reorder Point RoR,Ruby on Rails RoT,Roots of Trust ROU,Record Of Understanding ROWE,Results-Only Work Environment RPC,Remote Procedure Call RPG,"Report Program Generator, Role-Playing Game" RPM,"Rapid Response Manufacturing, Remote Patient Monitoring, Red Hat Package Manager" RPO,"Recovery Point Objective, Recruitment Process Outsourcing" RPR,Resilient Packet Ring RPT,Rich Presence Technology RQ,Risk Intelligence RRAM,resistive RAM RSAT,Microsoft Remote Server Administration Tools RSC,Retail Service Center RSI,requirements stability index RSNA,Radiological Society of North America RSoP,Resultant Set of Policy RSS,Really Simple Syndication (feeds) RSVP,Resource Reservation Protocol RT,retweet RTA,real-time application RTC,"real-time clock, real-time communications" RTCD,real-time communications dashboard RTCP,Real-Time Transport Control Protocol RTD,"reconfigurable tactile display, Research and Technical Development" RTF,Rich Text Format RTFM,Read The Fucking Manual RTLS,real-time location system RTM,Read The Manual RTO,recovery time objective RtOI,real-time operational intelligence RTOS,real-time operating system RTP,Real-Time Transport Protocol RTSP,Real Time Streaming Protocol RTT,round-trip time RUP,Rational Unified Process RWU,remote wakeup RZ,return-to-zero S&OP,sales and operations planning S/FTP,Screened Foil Twisted Pair S-HTTP,Secure HTTP S.M.A.R.T.,Self-Monitoring Analysis & Reporting Technology S/MIME,Secure Multi-Purpose Internet Mail Extensions S/PDIF,Sony/Philips Digital Interface S4L,spam for life SA,"Microsoft Exchange System Attendant, Microsoft Software Assurance, service assurance" SAA,Systems Application Architecture SaaS,"Software as a Service, Security as a Service, Storage as a Service" SACD,Super Audio CD SAFE,Samsung for Enterprise SAM,"Security Accounts Manager, storage area management" SAML,Security Assertion Markup Language SAN,storage area network SAPI,Speech Application Program Interface SAPPHIRE,SAP User Conference SAR,"Segmentation and Reassembly, Suspicious Activity Report" SAS,serial-attached SCSI SASID,Self-Scanned Amorphous Silicon Integrated Display SAX,Simple API for XML SBAs,search-based applications SBC,session border controller SBIR,Small Business Innovative Research SBOM,Software bill of materials SBR,skill-based routing SC,"sunk cost, supply chain" SCA,service-component architecture SCADA,Supervisory Control And Data Acquisition SCC,Supply Chain Council SCCP,Signalling Connection Control Part SCE,supply chain execution SCEM,supply chain event management SCI,serial communications interface SCL,spam confidence level SCM,Supply Chain Management SCOR,Supply Chain Operations Reference model SCORM,Shareable Content Object Reference Model SCP,"session control protocol, supply chain planning" SCR,Synchronized Customer Response SCSA,Signal Computing System Architecture SCSI,Small Computer System Interface SCSIe,SCSI Express SCTP,Stream Control Transmission Protocol SCV,supply chain visibility SD2,Sound Designer II SDA,Smart Data Access SDARS,Satellite Digital Audio Radio Service SDB,Small Disadvantaged Business SDDC,software-defined data center SDDL,Security Descriptor Definition Language SDH,Synchronous Digital Hierarchy SDI,Serial Digital Interface SDK,Software Development Kit SDL,Specification and Description Language SDLC,"Synchronous Data Link Control, systems development life cycle" SDMA,spatial division multiple access SDN,software-defined networking SDO,Service Data Objects SDP,Session Description Protocol SDR,software-defined radio SDRAM,synchronous DRAM SDTV,standard definition television SDWT,self-directed work team SDX,NetScaler SDXC,Secure Digital Extended Capacity card SEC,Securities and Exchange Commission SECAM,Sequential Couleur avec Memoire SEI,Software Engineering Institute SEM,single-electron memory SEO,search engine optimization SerDes,serializer/deserializer SERP,search engine results page SET,Secure Electronic Transaction SETI,Search for Extraterrestrial Intelligence SEWP,Solutions for Enterprise-Wide Procurement SFA,Sales Force Automation SFA,sales force automation SFA,single-factor authentication SFF,small form factor SFP,small form-factor pluggable SFS,stepless frequency control SFTP,Secure File Transfer Protocol SFX,special effects SGA,"Selling, General and Administrative expenses" SGF,Structured Graph Format SGI,Silicon Graphics SGML,Standard Generalized Markup Language SGRAM,Synchronous Graphics RAM Si,silicon SI,systems integrator SID,security identifier SIEM,security information and event management SIG,Special Interest Group SIGTRAN,Signaling Transport SIM,security information management SIMD,Single Instruction Multiple Data SIMM,"Service Integration Maturity Model, single in-line memory module" SIMO,"single input, multiple output" SIMPLE,SIP for Instant Messaging and Presence Leveraging Extensions SIP,Session Initiation Protocol SIPOC,"suppliers, inputs, process, outputs, customers" SIRDS,single-image random-dot stereogram SISO,"single input, single output" SIV,Signal Integrity Verification SJC,Senate Judiciary Committee SKA,Shared Key Authentication SKIL,"Bill Securing Knowledge, Innovation and Leadership Act" SKU,Stock Keeping Units SLA,service-level agreement SLC,single level cell SLD,second-level domain SLICE,Simple Low-Cost Innovative Engine SLIP,Serial Line Internet Protocol SLP,Service Location Protocol SMART,Self Monitoring Analysis and Reporting Technology SMB,"Server Message Block, small and medium-sized business, small and midsized business" SMBXML,Small Business Extensible Markup Language SMDS,Switched Multimegabit Data Service SME,"small to medium enterprise, Society of Manufacturing Engineers" SMF,Standard MIDI File SMI-S,Storage Management Initiative Specification SMIL,Synchronized Multimedia Integration Language SMM,social media marketing SMMS,Social media management software SMP,symmetric multiprocessing SMPTE,Society of Motion Picture and Television Engineers SMR,Specialized Mobile Radio SMS,Short Message Service SMSC,short message service center SMT,Simultaneous Multithreading SMTP,Simple Mail Transfer Protocol SMWT,Self Managed Work Teams SNA,Systems Network Architecture SNAFU,"situation normal, all f***ed up" SNG,satellite news gathering SNMP,Simple Network Management Protocol SNOMED,Systematized Nomenclature of Medicine SNR,signal-to-noise ratio SOA,service-oriented architecture SOAP,Simple Object Access Protocol SOC,switch-on-a-chip SoC,system-on-a-chip SoD,segregation of duties SOFC,solid oxide fuel cell SOHO,Small Office Home Office SOI,"service-oriented integration, Silicon-on-Insulator" SOLED,stacked organic light-emitting device SoLoMo,"social, local and mobile" SOM,service-oriented management SoMoClo,"social, mobile and cloud" SONET,Synchronous Optical Network SOP,"Sales and Operations Planning, Same Origin Policy" SOPA,Stop Online Piracy Act SOR,system of record SoS,system of systems sosofo,specification of a sequence of flow objects SOW,Statement of Work SOX,Sarbanes-Oxley Act SP1,Service Pack 1 SPAC,special purpose acquisition company SPARC,Scalable Processor Architecture SPC,Statistical Process Control SPD,Serial presence detect SPEC,Standard Performance Evaluation Corporation SPF,Sender Policy Framework SPI,serial peripheral interface SPICE,Software Process Improvement and Capability dEtermination SPID,Service Profile Identifier SPIF,sales performance incentive fund SPIT,spam over Internet telephony SPM,sales performance management SPM,Standard Process Modules SPML,Services Provisioning Markup Language SPOF,single point of failure spool,simultaneous peripheral operations online SPS,Standard Procurement System SPX,Sequenced Packet Exchange SQL,Structured Query Language SQuID,Source Quench Introduced Delay SR-IOV,Single Root I/O Virtualization SRAM,static random access memory SRE,serious reportable event SRM,"Standard Reference Material, storage resource management, supplier relationship management, sustainability risk management" SRS,software requirements specification SRT,Source-route transparent SRTP,Secure Real-Time Transport Protocol or Secure RTP SS7,Signaling System 7 SSA,Serial Storage Architecture SSADM,Structured Systems Analysis & Design Method SSD,Solid-State Drive SSH,Secure Shell SSI,"server-side include, single-system image" SSID,service set identifier SSL,"Secure Sockets Layer, solid-state lighting" SSM,solid state module SSO,single sign-on SSP,storage service provider SSS,solid state storage SSSI,Solid-State Storage Initiative SST,Streamlined Sales Tax SSTV,slow-scan television STAR,"Security, Trust and Assurance Registry" STARS,Standard Accounting and Reporting System statC,statcoulomb statF,statfarad statH,stathenry statS,statsiemens statV,statvolt statW,statwatt STDM,statistical time division multiplexing STEM,"science, technology, engineering, and mathematics" STEP,Standard for the Exchange of Product model data STM,scanning tunneling microscope STML,Spoken Text Markup Language STONITH,Shoot The Other Node In The Head STP,spanning tree protocol STP,standard temperature and pressure STUN,Simple Traversal of UDP through NAT SVC,"scalable video coding, supervisor call, switched virtual circuit" SVG,Scalable Vector Graphics SVVP,server virtualization validation program SWAG,Semantic Web Agreement Group SWAN,Structured Wireless-Aware Network SWAT,Samba Web Administration Tool SWF,Shockwave Flash file Swift,Programming language released in 2014 by Apple Inc. SWIFT,Simulated Work Input and Flow Time SWOT,"Strengths, Weakness, Opportunity and Threats Analysis" sysadmin,system administrator sysop,system operator T&M,Tools and Methodology T/R,Transmit / Receive T9,text on nine keys TA,terminal adapter TaaS,Testing as a Service TACACS,Terminal Access Controller Access Control System TACT,Total Average Cycle Time TAPI,Telephony Application Program Interface tar,Tape ARchive TB,terabyte TCAM,ternary content-addressable memory TCB,trusted computing base TCG,Trusted Computing Group Tcl,Tool Command Language Tcl/Tk,Tool Command Language TCM,Time Critical Manufacturing TCO,total cost of ownership TCP,Transmission Control Protocol TCP/IP,Transmission Control Protocol/Internet Protocol TD-SCDMA,time division synchronous code division multiple access TDC,Total Delivered Cost TDD,Telecommunications Display Device TDD,test-driven development TDM,"Team Data Manager, time-division multiplexing" TDMA,time division multiple access TEE,Trusted Execution Environment telco,telephone company TETRA,Terrestrial Trunked Radio TEWE,Technology for Enterprise-Wide Engineering TFT,thin-film transistor TFTP,Trivial File Transfer Protocol TGT,authentication ticket or ticket-granting ticket TIA,Total Information Awareness TIC,Trusted Internet Connections TIFF,Tag Image File Format TIG,Technology Implementation Group TIM,Test Inspection Measurement TIN,taxpayer Identification number Tk,Tool Kit TKIP,Temporal Key Integrity Protocol TLC,flash triple level cell flash TLD,top-level domain TLS,Transport Layer Security TM,software talent management software TMN,Telecommunications Management Network TMQL,Topic Map Query Language TMS,Transportation Management System TN,display twisted nematic display TOC,Theory of Constraints TOE,TCP/IP offload engine TOE,unified field theory or Theory of Everything TOGAF,The Open Group Architecture Framework TOLED,transparent organic light-emitting device TOP,Technical Office Protocol TOPS,Team Oriented Problem Solving TOTP,time-based one-time password TP,thin provisioning TPA,Technology and Product Assurance TPC,Transaction Processing Performance Council TPI,Total Profit Improvement TPM,"Total Productive Maintenance, Trusted Platform Module" TPOP,Time-Phased Order Point TPS,Terminal Proxy Server TPU,Tensor Processing Unit TQC,Total Quality Control TQM,Total Quality Management TRI,Toxic Release Inventory TRILL,Transparent Interconnection of Lots of Links TRON,The Real-Time Operating System Nucleus TRT,Transition Tree TSAP,Transport Services Access Point TSCA,Toxic Substances Control Act TSR,terminate and stay resident TTL,"time-to-live, transistor-to-transistor logic" TTS,text-to-speech TtV,time to value TTY,teletypewriter TURN,Traversal Using Relay NAT TVA,Throughput Value Added TW,tin whiskers TWG,Technology Working Group TWT,traveling-wave tube U2U,User to User UART,Universal Asynchronous Receiver/Transmitter UAT,user acceptance testing UBE,unsolicited bulk email UBL,Universal Business Language UC,Unit Cost UCaaS,Unified Communications as a Service UCE,unsolicited commercial email UCS,unified computing system UDA,Universal Data Access UDDI,"Universal Description, Discovery, and Integration" UDF,Universal Disk Format UDID,unique device identifier UDO,ultra density optical UDP,User Datagram Protocol UEFI,Unified Extensible Firmware Interface UGC,user-generated content UHDTV,Ultra High-Definition TV UHDV,ultra high definition video UHF,ultrahigh frequency UI,user interface UIA,user installed application UID,unique identifier UIML,User Interface Markup Language ULA,Oracle Unlimited License Agreement UM,unified messaging UMLS,Unified Medical Language System UMS,unified messaging system UMTS,"Universal Mobile Telecommunications Service, Universal Mobile Telecommunications System" UNC,Universal Naming Convention UPN,User Principal Name UPnP,Universal Plug and Play UPS,uninterruptible power supply URI,Uniform Resource Identifier URL,Uniform Resource Locator URN,Uniform Resource Name USART,"Universal Synchronous/Asynchronous Receiver/Transmitter" USB,Universal Serial Bus USGCB,United States Government Configuration Baseline USITC,United States International Trade Commission USP,unique selling point USR,"Universal System Resources (the /usr directory in a *NIX filesystem)" USSD,Unstructured Supplementary Service Data UTF,Unicode Transformation Format UTM,unified threat management UUCP,UNIX-to-UNIX Copy Protocol UUID,Universal Unique Identifier UX,user experience UXGA,Ultra Extended Graphics Array V2P,virtual to physical V2V,Virtual to virtual VAAI,vStorage APIs for Array Integration VAD,Value Added Distribution VAD,voice activation detection VAMP,vStorage API for Multipathing VAN,value-added network VAR,Value-Added Reseller VASA,vStorage APIs for Storage Awareness VAX,Virtual Address eXtension VB,Visual Basic VBI,vertical blanking interval VBN,visitor-based networking vBNS,very high-speed Backbone Network Service VBR,Vouch by Reference VC,venture capital vCAC,VMware vCloud Automation Center VCB,VMware Consolidated Backup VCD,video CD or video compact disc VCDX,VMware certified design expert vCLI,vSphere CLI VCP,VMware Capacity Planner VCP,VMware Certified Professional vCPU,virtual CPU VCR,videocassette recorder VCSEL,vertical cavity surface emitting laser vCSHB,VMware vCenter Server Heartbeat VDA,Virtual Desktop Access vDGA,Virtual Dedicated Graphics Acceleration VDI,virtual desktop infrastructure VDT,"video display terminal or visual display terminal" VDU,video display unit VE,Value Engineering VERIS,Vocabulary for Event Recording and Incident Sharing VFAT,Virtual File Allocation Table VFIIP,Virtual Factory Information Interchange Project VFS,virtual file system vGPU,virtual GPU VHD,virtual hard disk VHDCI,Very High Density Cable Interconnect VHDX,Hyper-V virtual hard disk VHE,Virtual Home Environment VHF,very high frequency VHS,Video Home System VI3,VMware Infrastructure 3 VIM,Vendor Independent Messaging Vim,Vi improved VITC,vertical interval time code VLAN,Virtual Local Area Network VLDB,Very Large Database VLE,virtual learning environment VLER,Virtual Lifetime Electronic Record VLIW,very long instruction word vlog,video blog VLSI,Very Large Scale Integration VLSM,variable-length subnet mask VM,virtual machine VMBus,Microsoft Virtual Machine Bus VMEbus,VersaModular Eurocard bus VMI,Vendor Managed Inventory VML,vector graphics rendering VML,Vector Markup Language VMLM,virtual machine lifecycle management VMM,virtual machine monitor VMO,vendor management office VMQ,Virtual Machine Queue VMS,Virtual Memory System VMUG,VMware User Group VMXNET3,VMXNET Generation 3 VNC,virtual network computing vNUMA,virtual NUMA VOB,Versioned Object Base VOC,voice of the customer VoD,video on demand VoIP,voice over IP VOIPSA,Voice over IP Security Alliance VOVA,vSphere OpenStack Virtual Appliance VoWLAN,Voice over WLAN VoxML,Voice Markup Language VP,value proposition VPD,virtual private database VPD,vital product data VPDM,Virtual Product Data Management VPLS,virtual private LAN service VPM,Virtual Product Model VPN,Virtual Private Network VPS,Virtual Private Server VRAM,Video RAM VRF,Virtual Routing and Forwarding VRF,virtual routing and forwarding VRM,"Vendor Risk Management, or Voltage Regulator Module" VRM,vendor risk management VRM,voltage regulator module VRML,Virtual Reality Modeling Language VRR,"Voice Recognition and Response, or Variable Refresh Rate" VRRP,Virtual Router Redundancy Protocol VSA,"virtual SAN appliance, Virtual Storage Appliance" VSAM,Virtual Storage Access Method VSAN,virtual storage area network VSAT,Very Small Aperture Terminal VSB,vestigial sideband VSE,Visual Studio Express VSM,virtual systems management VSMP,virtual symmetric multiprocessing VSP,vertical solutions provider VSP,Virtual Storage Portal VSPP,VMware Service Provider Program VSTO,Visual Studio Tools for Office or Microsoft Visual Studio Tools VSTS,Visual Studio Team System VTAM,Virtual Telecommunications Access Method VTL,Virtual Tape Library VUGM,Virtual User Group Meeting VUM,VMware vSphere Update Manager VXLAN,Virtual Extensible LAN W-CDMA,Wideband Code-Division Multiple Access W2K,Windows 2000 W3C,World Wide Web Consortium WAAS,Wide Area Application Services WaaS,Windows as a Service WAE,Wide Area Ethernet WAF,write amplification factor WAFS,wide-area file services WAIS,Wide Area Information Servers WAN,Wide Area Network WAP,Wireless Application Protocol WAPI,WLAN Authentication and Privacy Infrastructure WARN,Workers' Adjustment and Retraining Notification Act WASC,Web Application Security Consortium WaSP,Web Standards Project WASP,wireless application service provider WATS,wide-area telephone service WAX,Wireless Abstract XML WBEM,Web-Based Enterprise Management WBI,Web Intermediaries WBMP,Wireless Bitmap WBS,Work Breakdown Schedule WBS,work breakdown structure WCET,worst-case execution time WCF,Windows Communication Foundation WCM,web content management WCM,World Class Manufacturing WCS,Warehouse control system WCS,Wireless Communications Service WDF,web development framework WDM,wavelength-division multiplexing WDS,Windows Deployment Services WDS,wireless distribution system WDSC,WebSphere Development Studio Client WDT,watchdog timer WebDAV,World Wide Web Distributed Authoring and Versioning WebOps,Web operations WebRTC,Web Real-Time Communications WEEE,Waste Electrical and Electronic Equipment Regulation WEP,Wired Equivalent Privacy WF,Windows Workflow Foundation WfM,"Wired for Management, Workforce management" WFO,workforce optimization WFQ,weighted fair queueing WGA,Windows Genuine Advantage WGate,Web gateway WHATWG,Web Hypertext Application Technology Working Group WHQL,Windows Hardware Quality Labs WiBB,wireless broadband WIC,WAN interface card WiDEN,Wideband Integrated Digital Enhanced Network WIM,Windows Imaging Format WiMAX,Worldwide Interoperability for Microwave Access WIMP,"windows, icons, mouse, and pull-down menus" WIMP,Woefully Inept Manufacturing Process WinDirStat,Windows Directory Statistics Wine,Wine is not an emulator WinFS,Windows File System WinFX,.NET 3.0 WinPE,Microsoft Windows Preinstallation Environment WinRM,Windows Remote Management WINS,Windows Internet Naming Service WIP,Work in Process WME,World's Most Ethical WMF,Microsoft Windows Management Framework WMI,Windows Management Instrumentation WMIC,Windows Management Instrumentation Command line WML,Wireless Markup Language WMM,Wi-Fi Multimedia WMN,Wireless Mesh Network WMP,Windows Media Player WMS,Warehouse Management System WMTS,Wireless Medical Telemetry Services WORA,"write once, run anywhere" WORM,"write once, read many" WPA,Wi-Fi Protected Access WPA,Windows Product Activation WPAD,Web Proxy Autodiscovery WPAN,Wireless Prsonal Area Network WPAS,Windows Process Activation Service WPF,Windows Presentation Foundation WRAM,Window RAM WSA,Windows Subsystem for Android WSCI,Web Service Choreography Interface WSD,white space device WSDL,Web Services Description Language WSFC,Windows Server Failover Clustering WSL,Windows Subsystem for Linux WSP,Wireless Service Provider WSS,Windows Sharepoint Services WSTx,Web Services Transactions WSUS,Windows Server Update Services WTLS,Wireless Transport Layer Security WTS,Windows Terminal Server WUE,water usage effectiveness WUSB,wireless USB WWN,World Wide Name WWW,World Wide Web WYSIWYG,what you see is what you get WYSIWYP,what you see is what you print X9,ASC X9 XaaS,anything as a service XACML,Extensible Access Control Markup Language XAM,eXtensible Access Method XAML,Extensible Application Markup Language XBRL,Extensible Business Reporting Language XCCDF,Extensible Configuration Checklist Description Format XDMA,Xing Distributed Media Architecture XFDL,Extensible Forms Description Language XGA,Extended Graphics Array XHTML,Extensible Hypertext Markup Language XMI,XML Metadata Interchange XML,Extensible Markup Language XMPP,Extensible Messaging and Presence Protocol XMT,Extensible MPEG-4 Textual XNS,Extensible Name Service XORP,Extensible Open Router Platform XP,Extreme Programming XPRL,Extensible Public Relations Language XQL,XML Query Language XrML,Extensible Rights Markup Language XSD,XML Schema Definition XSL,Extensible Stylesheet Language XSLT,XSL Transformations XSRF,cross-site request forgery XSS,cross-site scripting XST,cross-site tracing XUL,Extensible User-interface Language XWM,X window manager XWN,eXtended WordNet XWS,X Window System XYZ,Internet top-level domain (.xyz) released in 2014 Y2K,year 2000 yacc,yet another compiler compiler YMS,yard management system YUM,"Yellowdog Updater, Modified" ZBR,zoned-bit recording ZBT,zero-based thinking ZIF,Zero Insertion Force Zope,Z Object Publishing Environment ZRTP,Zimmermann Real-Time Transport Protocol ZV,Zoomed Video