acronyms.comp revision 1.363
1$NetBSD: acronyms.comp,v 1.363 2023/09/11 15:07:52 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APFS Apple file system 72API application programming interface 73APEI ACPI platform error interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APU accelerated processing unit 79APT advanced persistent threat 80AQM active queue management 81ARAT always running APIC timer 82ARC adaptive replacement cache 83ARC Advanced RISC Computing 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR address space register 108ASR Apple software restore 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMP basic multilingual plane 163BMP bitmap image file 164BMIC bus master interface controller 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTC bit test [and] complement 201BTM bus transport mechanism 202BTR bit test [and] reset 203BTS bit test [and] set 204BTS bug tracking system 205BW bandwidth 206BWM block-write mode 207BUAG big ugly ASCII graphic 208CA certificate authority 209CAC cryptographic access control 210CACLS change access control lists 211CAD computer-aided design 212CAM computer assisted manufacturing 213CAM conditional access module 214CAM content addressable memory 215CARP Common Address Redundancy Protocol 216CAS column address strobe 217CAS compare and swap 218CAS computer algebra system 219CASE computer aided software engineering 220CAU control access unit 221CAV constant angular velocity 222CBC cipher block chaining 223CBR constant bit rate 224CC carbon copy 225CCC Chaos Computer Club 226CCD charge coupled device 227CCI co-channel interferer 228CCNUMA cache-coherent non-uniform memory access 229CCTL command completion time limit 230CD cache disable 231CD compact disc 232CDDA compact disc digital audio 233CDL compiler description language 234CDMA code division multiple access 235CDN content delivery network 236CDP Cisco Discovery Protocol 237CDRAM cache dynamic random access memory 238CER canonical encoding rules 239CE customer edge 240CF compact flash 241CFB cipher feedback 242CFG context-free grammar 243CFG control-flow graph 244CFI control-flow integrity 245CG control gate 246CGA Color Graphics Adapter 247CGI common gateway interface 248CGN Carrier-Grade NAT 249CHAP Challenge-Handshake Authentication Protocol 250CHFS chip file system 251CHS cylinder/head/sector 252CI continuous integration 253CI {common,component} interface 254CIA confidentiality, integrity, availability 255CIDR Classless Inter-Domain Routing 256CIF common intermediate format 257CIFS Common Internet File System 258CIL common intermediate language 259CIR carrier-to-interference ratio 260CIS contact image sensor 261CISC complex instruction set {computer,computing} 262CJK Chinese, Japanese, [and] Korean 263CLF common log format 264CLI command line interface 265CLI common language infrastructure 266CLR common language runtime 267CLS common language specification 268CLTT closed loop thermal throttling 269CLUT color look-up table 270CLV constant linear velocity 271CM configuration management 272CMA concert multithread architecture 273CMC chassis management controller 274CMC corrected machine check 275CMC certificate management over CMS 276CMS {configuration,content,course} management system 277CMS cryptographic message syntax 278CMI control {management,method} interface 279CMOS complementary metal-oxide-semiconductor 280CMP chip multi-processing 281CMS content management system 282CMYK cyan magenta yellow black 283CN {common,canonical} name 284CNA CVE Numbering Authority 285CNC computer numerical control 286CNR carrier-to-noise ratio 287COA change of authority 288COF current operating frequency 289COFDM coded orthogonal frequency division multiplexing 290COFF common object file format 291COM component object model 292COM computer on module 293COMA cache-only memory architecture 294CORBA common object request broker architecture 295COS class of service 296COW copy-on-write 297CP continuous pilot 298CPA chosen-plaintext attack 299CPB core performance boost 300CPC central processor complex 301CPC cpu performance counters 302CPE common phase error 303CPE common platform enumeration 304CPER common platform error record 305CPG clock pulse generator 306CPI cycles per instruction 307CPL current privilege level 308CPLD complex programmable logic device 309CPP C preprocessor 310CPS characters per second 311CPS continuation-passing style 312CPT command pass through 313CPU central processing unit 314CR carriage return 315CRC cyclic redundancy check 316CRDT conflict-free replicated data type 317CRL carrier recovery loop 318CRLF carriage return line feed 319CSPM cloud security posture management 320CSU C start up 321CRT cathode ray tube 322CRTP curiously recurring template pattern 323CRUD create, read, update, and delete 324CS cable select 325CS chip select 326CS code segment 327CS computer science 328CSDL {common,conceptual} schema definition language 329CSI channel state information 330CSI common system interface 331CSMA carrier sense multiple access 332CSMA/CA carrier sense multiple access with collision avoidance 333CSMA/CD carrier sense multiple access with collision detection 334CSP communicating sequential processes 335CSP content security policy 336CSP constrain satisfaction problems 337CSP cryptographic service provider 338CSR control [and] status registers 339CSRG Computer Systems Research Group 340CSS cascading style sheets 341CST common spanning tree 342CSV comma-separated values 343CTF compact c type format 344CTM close to metal 345CTR counter [mode] 346CTS clear to send 347CTS common type system 348CUA common user access 349CUT coordinated universal time 350CV control voltage 351CVE common vulnerabilities and exposures 352CVS Concurrent Versions System 353DA destination address 354DAA distributed application architecture 355DAAP digital audio access protocol 356DAB digital audio broadcasting 357DAC digital [to] analog converter 358DAC discretionary access control 359DAD duplicate address detection 360DAE deterministic authenticated encryption 361DANE DNS-based Authentication of Named Entities 362DAO disk at once 363DAP Directory Access Protocol 364DAT digital audio tape 365DAT dynamic acceleration technology 366DB database 367DBA database administrator 368DBA dynamic bandwidth allocation 369DBB data bus buffer 370DBC design by contract 371DBL dynamic buffer limiting 372DBMS database management system 373DBS database server 374DC data center 375DC direct current 376DCC Direct Client-to-Client 377DCC direct cable connect 378DCD data carrier detect 379DCE data control equipment 380DCE distributed computing environment 381DCIM data center infrastructure management 382DCIM digital camera images 383DCL Digital Command Language 384DCOM distributed component object model 385DCOP Desktop COmmunication Protocol 386DCS data collection systems 387DCT discrete cosine transform 388DCU data cache unit 389DDC display data channel 390DDE dynamic data exchange 391DDI device drivers interface 392DDK device driver kit 393DDL data description language 394DDR double data rate 395DDS direct digital sound 396DDWG Digital Display Working Group 397DE debugging extensions 398DE desktop environment 399DEA data encryption algorithm 400DEC Digital Equipment Corporation 401DEK data encryption key 402DEP data execution prevention 403DER distinguished encoding rules 404DES Data Encryption Standard 405DF don't fragment 406DFA deterministic finite automaton 407DFC data flow control 408DFS depth first search 409DFS distributed file system 410DFSAN Data Flow Sanitizer 411DFT diagnostic function test 412DFT discrete Fourier transform 413DGL data generation language 414DGEMM double precision general matrix multiply 415DH Diffie-Hellman 416DHCP Dynamic Host Configuration Protocol 417DIA dedicated Internet access 418DIB device independent bitmap 419DIFS distributed inter-frame space 420DIMM dual inline memory module 421DIRT design in real time 422DKI driver/kernel interface 423DL diode logic 424DL discrete logarithm 425DL download 426DLCI data link connection identifier 427DLE data link escape 428DLL dynamic link library 429DLNA digital living network alliance 430DLP discrete logarithm problem 431DMA direct memory access 432DMI desktop management interface 433DMS document management system 434DMT discrete multitone modulation 435DMU data management layer 436DNARD Digital network appliance reference design 437DND drag and drop 438DNLC directory name lookup cache 439DNS Domain Name System 440DNSBL Domain Name System Block List 441DNSSEC DNS Security Extensions 442DOE distributed object environment 443DOF data over fibre 444DOM document object model 445DOS denial of service 446DOS disk operating system 447DP DisplayPort 448DPAA data path acceleration architecture 449DPC deferred procedure call 450DPCM differential pulse code modulation 451DPD dead peer detection 452DPDK data plane development kit 453DPI deep packet inspection 454DPI dots per inch 455DPL descriptor privilege level 456DPS Display PostScript 457DPST display power savings technology 458DRAAS disaster recovery as a service 459DRAM dynamic random access memory 460DRBG deterministic random bit generator 461DRI direct rendering infrastructure 462DRM digital rights management 463DRM direct rendering manager 464DRRS display refresh rate switching 465DS debug store 466DS differentiated services 467DS9000 DeathStation 9000 468DS9K DeathStation 9000 469DSA digital signature algorithm 470DSAP destination service access point 471DSB double-sideband modulation 472DSCP differentiated services code point 473DSDT differentiated system descriptor table 474DSF device special file 475DSL dataset and snapshot layer 476DSL digital subscriber line 477DSL domain specific language 478DSLAM digital subscriber line access multiplexer 479DSN delivery status notification 480DSO dynamic shared object 481DSP digital signal processor 482DSSS direct sequence spread spectrum 483DTB device tree blob 484DTC device tree compiler 485DTD document type definition 486DTE data terminal equipment 487DTE dumb terminal emulator 488DTL diode-transistor logic 489DTLS datagram transport layer security 490DTS device tree source 491DTS digital thermal sensor 492DUT device under test 493DVB digital video broadcasting 494DVCS distributed version control system 495DVD digital versatile disc 496DVFS dynamic voltage and frequency scaling 497DVI device independent 498DVI Digital Visual Interface 499DVR digital video recorder 500DWARF Debugging With Attributed Record Formats 501E-XER extended XML encoding rules 502EABI embedded-application binary interface 503EAI Email Address Internationalization 504EAI Enterprise Application Integration 505EAP Extensible Authentication Protocol 506EAPOL EAP over Lan 507EAV entity-attribute-value model 508EAV ethernet audio/video bridging 509EBCDIC Extended Binary Coded Decimal Interchange Code 510EBDA Extended BIOS Data Area 511EBNF extended backus-naur form 512EBR extended boot record 513EC elliptic curve 514ECC elliptic curve cryptography 515ECC error correction code 516ECDH elliptic curve Diffie-Hellman 517ECDL elliptic curve discrete logarithm 518ECDLP elliptic curve discrete logarithm problem 519ECDSA elliptic curve digital signature algorithm 520ECL emitter-coupled logic 521ECN explicit congestion notification 522ECP enhanced capability port 523ECS enhanced chip set 524ECS extended configuration space 525EDAC error detection and correction 526EDAT enhanced dynamic acceleration technology 527EdDSA Edwards curve digital signature algorithm 528EDGE explicit data graph execution 529EDID extended display identification data 530EDO extended data out 531EDS electronical data sheet 532EDSAC electronic delay storage automatic calculator 533EDVAC electronic discrete variable automatic computer 534EEE energy efficient ethernet 535EEE embrace, extend, extinguish 536EEPROM electrically erasable programmable read only memory 537EFI extensible firmware interface 538EFL emitter follower logic 539EFM eight to fourteen modulation 540EFS extent file system 541EGA Enhanced Graphics Adapter 542EGP exterior gateway protocol 543EH extension header 544EIDE enhanced IDE 545EISA extended industry standard architecture 546EINJ error injection table 547ELF executable and linking format 548ELS entry level system 549EMI electro-magnetic interference 550EMP electro-magnetic pulse 551EMR electro-magnetic radiation 552EMACS Editor MACroS 553ENIAC electronic numerical integrator and computer 554EOF end of file 555EOI end of interrupt 556EOIS end of interactive support 557EOL end of life 558EOL end of line 559EOT end of transmission 560EPIC explicitly parallel instruction computing 561EPP enhanced parallel port 562EPRML extended partial response, maximum likelihood 563EPROM erasable programmable read only memory 564EPT extended page tables 565ERC error recovery control 566ERD emergency recovery disk 567ERD entity relationship diagram 568ERE extended regular expression 569ERST error record serialization table 570ESAN Efficiency Sanitizer 571ESB enterprise service bus 572ESDI enhanced small disk interface 573ESDRAM enhanced synchronous dynamic random access memory 574ESI enclosure services interface 575ESS electronic switching system 576ESS extended service set 577ESSID extended service set identifier 578EST enhanced speedstep 579ETL extract, transform, load 580EU execution unit 581EULA end user license agreement 582FAT file allocation table 583FBRAM frame buffer random access memory 584FCIF full common intermediate format 585FCL fiber channel loop 586FCS frame check sequence 587FDC floppy disk controller 588FDD floppy disk drive 589FDDI fiber distributed data interface 590FDE full disk encryption 591FDT flattened device tree 592FEA finite element analysis 593FEC forward error correction 594FET field-effect transistor 595FF finite field 596FF form feed 597FFDH finite-field Diffie-Hellman 598FFH functional fixed hardware 599FFI foreign function interface 600FFM focus follows mouse 601FFS Fast File System 602FFS find first set 603FFT fast Fourier transform 604FG floating gate 605FHRP first hop redundancy protocol 606FHSS frequency hop spread spectrum 607FID frequency identifier 608FIFO first in, first out 609FILO first in, last out 610FIPS Federal Information Processing Standards 611FIR fast infrared 612FLOPS floating [point] operations per second 613FLOSS free/libre/open source software 614FM frequency modulation 615FMR false match rate 616FOSS free/open source software 617FPGA field programmable gate array 618FPM fast page mode 619FPR floating point register 620FPU floating point unit 621FQDN fully qualified domain name 622FRR false rejection rate 623FRU field replaceable unit 624FS file system 625FSB front side bus 626FSCK file system check 627FSF Free Software Foundation 628FSK frequency shift keying 629FSM finite-state machine 630FTA fault tree analysis 631FTL flash translation layer 632FTP File Transfer Protocol 633FTPS File Transfer Protocol Secure 634FTTH fiber to the home 635FUS fast user switching 636FWH firmware hub 637FWS folding white space 638GAL generic array logic 639GARP generic attribute registration protocol 640GAS generic address structure 641GC garbage collector 642GCC GNU Compiler Collection 643GCM Galois counter mode 644GCR group-coded recording 645GDI Graphics Device Interface 646GDT global descriptor table 647GECOS general comprehensive operating supervisor 648GEM graphics environment manager 649GEM graphics execution manager 650GEMM general matrix multiply 651GENA general event notification architecture 652GHC Glasgow Haskell compiler 653GHES generic hardware error source 654GIC generic interrupt controller 655GID group identifier 656GIF graphics interchange format 657GLBP gateway load balancing protocol 658GMCH graphics and memory controller hub 659GNU GNU's Not Unix 660GOP graphics output protocol 661GOT global offset table 662GPE general purpose event 663GPF general protection fault 664GPG GNU Privacy Guard 665GPL [GNU] General Public License 666GPR general purpose register 667GPS generalized processor sharing 668GPT GUID partition table 669GPU graphics processing unit 670GR golden ratio 671GRE generic routing encapsulation 672GRO generic receive offload 673GSI global system interrupt 674GSO generic send offload 675GUI graphical user interface 676GUID globally unique identifier 677GUS Gravis UltraSound 678GVFS git virtual file system 679HA high availability 680HAL hardware abstraction layer 681HAT hashed array tree 682HATEOAS hypermedia as the engine of application state 683HBA host bus adapter 684HCC Home Cable Computer 685HCCA Home Cable Computer Adaptor 686HCF halt and catch fire 687HCI host controller interface 688HCI human-computer interaction 689HCL hardware compatibility list 690HDCP High-bandwidth Digital Content Protection 691HDD hard disk drive 692HDL hardware description language 693HDMI High-Definition Multimedia Interface 694HDTV high-definition television 695HECI host embedded controller interface 696HEST hardware error source table 697HEVC high efficiency video coding 698HF high frequency 699HFM highest frequency mode 700HFS hierarchical file system 701HID human interface device 702HKDF HMAC-based key derivation function 703HKP HTTP Keyserver Protocol 704HLL high-level language 705HMA high memory area 706HMI human-machine interface 707HOOD hierarchical object oriented design 708HOTP HMAC-based one time password 709HP Hewlett-Packard 710HPC high performance computing 711HPD hot plug detection 712HPET high precision event timer 713HSM hardware security module 714HSM hierarchical storage management 715HSRP hot standby router protocol 716HT hyper-threading 717HTC hardware thermal control 718HTCC high temperature co-fired ceramic 719HTML HyperText Markup Language 720HTT hyper-threading technology 721HTTP Hypertext Transfer Protocol 722HTTPS Hypertext Transfer Protocol Secure 723HVM hardware virtual machine 724HVDS High-Voltage Differential Signaling 725HWASAN Hardware-assisted Address Sanitizer 726HZ Hertz 727I2O intelligent input/output 728IA information assurance 729IAAS infrastructure as a service 730IANA Internet Assigned Numbers Authority 731IAB Internet Architecture Board 732IBC iterated block cipher 733IBM International Business Machines 734IBPI international blinking pattern interpretation 735IBS instruction based sampling 736IBSS independent basic service set 737IC integrated circuit 738ICA independent computer architecture 739ICACLS integrity control access control lists 740ICB Internet Citizen's Band 741ICE in-circuit emulator 742ICE internal compiler error 743ICH I/O controller hub 744ICMP Internet Control Message Protocol 745ICT information and communications technology 746ICW initialization command word 747IDA Intel dynamic acceleration 748IDCMP Intuition direct communication message port 749IDCT inverse discrete cosine transform 750IDE integrated development environment 751IDE integrated drive electronics 752IDPS intrusion detection [and] prevention system 753IDRP inter-domain routing protocol 754IDS intrusion detection system 755IDT interrupt descriptor table 756IE Internet Explorer 757IEC International Electrotechnical Commission 758IEEE Institute of Electrical and Electronics Engineers 759IESG Internet Engineering Steering Group 760IETF Internet Engineering Task Force 761IF intermediate frequency 762IFCM isochronous flow control mode 763IFF Interchange File Format 764IFS internal field separator 765IGD Internet gateway device 766IGMP Internet Group Management Protocol 767IGP interior gateway protocol 768IHV independent hardware vendor 769IKE Internet key exchange 770ILM internal loopback mode 771ILOM integrated lights-out management 772ILP instruction level parallelism 773IM instant messaging 774IME input method editor 775IMAP Internet Message Access Protocol 776IMC integrated memory controller 777IMCR interrupt mode configuration register 778IMR interrupt mask register 779IMS information management system 780IMSI international mobile subscriber identity 781INCITS InterNational Committee for Information Technology Standards 782INODE index node 783IO input/output 784IOCTL input/output control 785IOM input/output managers 786IOMMU input/output memory management unit 787IOT Internet of Things 788IP Internet Protocol 789IP intellectual property 790IPC instructions per cycle 791IPC interprocess communication 792IPCF interprocess communication facility 793IPE integrated programming environment 794IPI intelligent peripheral interface 795IPI interprocessor interrupt 796IPL Initial Program Load 797IPL Interrupt Priority Level 798IPMB Intelligent Platform Management Bus 799IPMI Intelligent Platform Management Interface 800IPNG Internet Protocol, Next Generation 801IPS in-plane switching 802IPS intrusion prevention system 803IPSEC Internet Protocol Security 804IRC Internet Relay Chat 805IRDA infrared data association 806IRDP ICMP Router Discovery Protocol 807IR intermediate representation 808IRQ interrupt request 809IRQL interrupt request level 810IRR interrupt request register 811IRTF Internet Research Task Force 812IS information system 813ISA industry standard architecture 814ISA instruction set architecture 815ISE instant secure erase 816ISDN integrated services digital network 817ISI inter-symbol interference 818ISL initial system load 819ISM industrial, scientific, [and] medical 820ISMS information system management system 821ISN initial serial number 822ISO International Standards Organization 823ISOC Internet Society 824ISP Internet service provider 825ISR in-service register 826ISR interrupt service routine 827IST internal spanning tree 828IST interrupt stack table 829ISV independent software vendor 830IT information technology 831ITB Intel Turbo Boost 832ITIL information technology infrastructure library 833ITP in-target probe 834ITSM IT service management 835IV initialization vector 836IVT interrupt vector table 837JBOD just a bunch of disks 838JCL Job Control Language 839JFET junction [gate] field-effect transistor 840JIT just in time 841JPEG Joint Photographic Experts Group 842JRE Java Runtime Environment 843JSON JavaScript Object Notation 844JTAG joint test action group 845KASAN Kernel Address Sanitizer 846KASLR kernel address space layout randomization 847KB keyboard 848KB kilobyte 849KBD keyboard 850KBD kilobaud 851KCS keyboard controller style 852KEM key encapsulation mechanism 853KLOC thousand lines of code 854KMS kernel-mode setting 855KPI kernel programming interface 856KVA kernel virtual address 857KVM kernel virtual machine 858KVM kernel virtual memory 859KVM keyboard, video, [and] mouse 860L2CAP link layer control and adaptation protocol 861LAG link aggregation group 862LAMP Linux Apache MySQL {Perl,PHP,Python} 863LAN local area network 864LAPIC local advanced programmable interrupt controller 865LAR load access rights 866LBA logical block addressing 867LBNF labeled backus-naur form 868LBS location-based service 869LCD liquid crystal display 870LCP link control protocol 871LDA local delivery agent 872LDAP Lightweight Directory Access Protocol 873LDR light-dependent resistor 874LDT local descriptor table 875LE logical extent 876LED light emitting diode 877LELL low energy link layer 878LER label edge router 879LF line feed 880LF low frequency 881LFM lowest frequency mode 882LFN long file names 883LFO low-frequency oscillation 884LFS log-structured file system 885LFU least frequently used 886LHP loop heat pipe 887LIF logical interchange format 888LIFO last in, first out 889LILO LInux LOader 890LILO last in, last out 891LINT local interrupt 892LIR local Internet registry 893LISP LISt Processor 894LISP Locator/ID Separation Protocol 895LKM {Linux,loadable} kernel module 896LKML Linux kernel mailing list 897LL load linked 898LL/SC load linked/store conditional 899LLC logical link control 900LLD low-level design 901LLDD low-level design document 902LLDP link layer discovery protocol 903LLF low level format 904LLMNR link-local multicast name resolution 905LLVM Low Level Virtual Machine 906LM long mode 907LMCE local machine check exception 908LMI local management interface 909LMM link management mode 910LMP link management protocol 911LNO loop nest optimization 912LOC lines of code 913LOM lights-out management 914LPE Linux performance events 915LPC low pin count 916LPS local positioning system 917LRC longitudinal redundancy check 918LRM left-to-right mark 919LRO Large Receive Offload 920LRO left-to-right override 921LRU least recently used 922LS link state 923LSAN Leak Sanitizer 924LSB Linux standards base 925LSB least significant {bit,byte} 926LSI large scale integration 927LSL load segment limit 928LSM log structured merge 929LSN Large Scale NAT 930LSN log sequence number 931LSO large send offload 932LSR label switch router 933LTCC low temperature co-fired ceramic 934LTO linear tape-open 935LTO link time optimization 936LTR left to right 937LTR load task register 938LTR letter(-sized paper) 939LTS long term support 940LUA Lua Uppercase Accident 941LUN logical unit number 942LV logical volume 943LVM logical volume management 944LVT local vector table 945LVDS Low-Voltage Differential Signaling 946LWP light-weight process 947LZSS Lempel Ziv Storer Szymanski 948LZW Lempel Ziv Welch 949MAB MAC authentication bypass 950MAC mandatory access control 951MAC {media,medium} access control 952MAC message authentication {check,code} 953MADT multiple APIC descriptor table 954MAMR microwave-assisted magnetic recording 955MB megabyte 956MBA multi-boot agent 957MBR master boot record 958MBS megabits per second 959MC memory controller 960MCA machine check architecture 961MCA MicroChannel architecture 962MCC multiversion concurrency control 963MCE machine check exception 964MCGA Multi-Color Graphics Array 965MCH memory controller hub 966MCLAG multi-chassis link aggregation group 967MCM multi-chip module 968MCQ memory controlled queue 969MD machine-dependent 970MD MiniDisc 971MD-SAL model-driven service abstraction layer 972MDA mail delivery agent 973MDA Monochrome Display Adapter 974MDC Management Data Clock 975MDI Medium Dependent Interface 976MDI-X Medium Dependent Interface Crossover 977MDIO Management Data Input/Output 978MDMX MIPS Digital Media eXtension 979MDRAM multibank dynamic random access memory 980MESI modified, exclusive, shared, invalid 981MFC merge from current 982MFC Microsoft Foundation Classes 983MFM modified frequency modulation 984MFU most frequently used 985MGCP media gateway control protocol 986MHU message handling unit 987MI machine-independent 988MI machine interface 989MIB management information base 990MIC message integrity {check,code} 991MID mobile Internet device 992MIDI musical instrument digital interface 993MIF management information format 994MII media independent interface 995MIM man in the middle 996MIMD multiple instruction, multiple data 997MIME Multipurpose Internet Mail Extensions 998MIMO multiple input multiple output 999MIPS million instructions per second 1000MIPS Microprocessor without Interlocked Pipeline Stages 1001MISD multiple instruction, single data 1002MIT Massachusetts Institute of Technology 1003MITM man in the middle 1004ML machine language 1005ML machine learning 1006ML mailing list 1007ML markup language 1008ML maximum likelihood 1009MLAG multi-chassis link aggregation group 1010MLC multi-level cell 1011MLD multicast listener discovery 1012MLHP micro loop heat pipe 1013MLIR multi-level intermediate representation 1014MLO MMC loader 1015MMC multi-media card 1016MMF multi-mode fiber 1017MMIC monolithic microwave integrated circuit 1018MMIO memory mapped input/output 1019MMORPG massive multiplayer online role playing game 1020MMRP multiple MAC registration protocol 1021MMU memory management unit 1022MMX matrix math extension 1023MMX multimedia extension 1024MMX multiple math extension 1025MO magneto-optical 1026MOESI modified, owned, exclusive, shared, invalid 1027MOF maximum operating frequency 1028MOSFET metal-oxide-semiconductor field-effect transistor 1029MOSI modified, owned, shared, invalid 1030MP multi-platform 1031MP multiplayer 1032MP {multiprocessing,multiprocessor} 1033MPEG moving picture experts group 1034MPI message passing interface 1035MPLS Multiprotocol Label Switching 1036MPP massively parallel processor 1037MPS memory pool system 1038MPS multiprocessor specification 1039MQTT Message Queuing Telemetry Transport 1040MR modem ready 1041MRO method resolution order 1042MRP multiple registration protocol 1043MRU most recently used 1044MS Microsoft 1045MSAN Memory Sanitizer 1046MSB most significant {bit,byte} 1047MSC message sequence chart 1048MSE mean square error 1049MSF minutes seconds frames 1050MSI message signaled interrupt 1051MSI modified, shared, invalid 1052MSR {machine state,model-specific} register 1053MSS maximum segment size 1054MSTP Multiple Spanning Tree Protocol 1055MT machine translation 1056MTA mail transfer agent 1057MTBF mean time between failures 1058MTP media transfer protocol 1059MTRR memory type range register 1060MTTF mean time to failure 1061MTU maximum transmission unit 1062MUA mail user agent 1063MUD multi-user domain 1064MVCC multiversion concurrency control 1065MVR multicast VLAN registration 1066MVRP multiple VLAN registration protocol 1067MWE module width encoding 1068MX mail exchange 1069NACK negative acknowledgement 1070NAK negative acknowledgement 1071NAN neighbor awareness networking 1072NAN not a number 1073NAPT Network Address Port Translation 1074NAS network attached storage 1075NAT network address translation 1076NAV network allocation vector 1077NC numerical control 1078NC-SI network controller sideband interface 1079NCO numerically-controlled oscillator 1080NCP Network Control Protocol 1081NCSI network connectivity status indicator 1082NCQ native command queuing 1083ND neighbor discovery 1084NDFA nondeterministic finite automaton 1085NDIS network driver interface specification 1086NE numeric error 1087NEWS Network extensible Window System 1088NFA nondeterministic finite automaton 1089NFC near-field communication 1090NFCI no functional change intended 1091NFS network file system 1092NFV network function virtualization 1093NHACP NABU HCCA Application Communication Protocol 1094NIA next instruction address 1095NIC network information center 1096NIC network interface card 1097NIDS network intrusion detection system 1098NIP network interface protocol 1099NIPS network intrusion prevention system 1100NIS network information service 1101NIST National Institute of Standards and Technology 1102NLS native language support 1103NMI non-maskable interrupt 1104NNTP Network News Transfer Protocol 1105NMR nonce-misuse resistance 1106NOC network operations center 1107NOP no operation 1108NOS network operating system 1109NP nondeterministic polynomial time 1110NRND not recommended for new designs 1111NRZ non-return to zero 1112NSA nation-state adversary 1113NSA no such agency 1114NSA National Security Agency 1115NTM non-deterministic Turing machine 1116NTP Network Time Protocol 1117NUMA non-uniform memory access 1118NURBS non-uniform rational basis spline 1119NVMM NetBSD Virtual Machine Monitor 1120NVMM non-volatile main memory 1121NVRAM non-volatile random access memory 1122NW not write-through 1123NX no execute 1124OAEP optimal asymmetric encryption padding 1125OAM operations, administration, and {management,maintenance} 1126OBO off by one 1127OBOE off by one error 1128OCL object constraint language 1129OCR optical character recognition 1130ODE offline device environment 1131ODI open data-link interface 1132ODM object data manager 1133ODCM on-demand clock modulation 1134ODMR on-demand mail relay 1135ODT on-die termination 1136OEM original equipment manufacturer 1137OFB output feedback 1138OFDM orthogonal frequency division multiplexing 1139OFET organic field-effect transistor 1140OLAP online analytical processing 1141OLE object linking and embedding 1142OLTP online transaction processing 1143ONCE on-{chip,circuit} emulation 1144ONFI open nand flash interface 1145OO OpenOffice 1146OO object oriented 1147OOB out of band 1148OOE out of order execution 1149OOM out of memory 1150OOO OpenOffice.org 1151OOP object oriented programming 1152OOPS object oriented programming systems 1153OOSE object oriented software engineering 1154OPM operations per minute 1155OPS operations per second 1156OQL Object Query Language 1157ORB object request broker 1158ORM object-relational mapping 1159OS operating system 1160OSD object-based storage device 1161OSD open source definition 1162OSF open software foundation 1163OSI Open Source Initiative 1164OSI open systems interconnection 1165OSPF open shortest path first 1166OSPM OS power management 1167OSS open sound system 1168OSS open source software 1169OSVW operating system visible workarounds 1170OTP one time password 1171OTP open telecom platform 1172OU organizational unit 1173OUI organizationally unique identifier 1174OWASP Open Web Application Security Project 1175OWL Web Ontology Language 1176P2P PCI to PCI 1177P2P peer to peer 1178PA phase accumulator 1179PA physical address 1180PAAS platform as a service 1181PAC phase-amplitude converter 1182PAE physical address extension 1183PAGP port aggregation protocol 1184PAL phase alternating line 1185PAL programmable array logic 1186PAM pluggable authentication modules 1187PAM pulse amplitude modulation 1188PAP password authentication protocol 1189PAT page attribute table 1190PAT port address translation 1191PATA parallel ATA 1192PAX portable archive exchange 1193PBE pending break encoding 1194PBE programming by example 1195PBR partition boot record 1196PBX private branch exchange 1197PC personal computer 1198PC program counter 1199PCB printed circuit board 1200PCB process control block 1201PCB Protocol Control Block 1202PCBC propagating cipher block chaining 1203PCC Portable C Compiler 1204PCD page-level cache disable 1205PCE path computation element 1206PCE performance-monitor counter enable 1207PCEP Path Computation Element Protocol 1208PCH platform controller hub 1209PCI peripheral component interconnect 1210PCM phase change memory 1211PCM pulse code modulation 1212PCMCIA Personal Computer Memory Card International Association 1213PCP Port Control Protocol 1214PD public domain 1215PDA personal digital assistant 1216PDA pushdown automaton 1217PDAG propositional directed acyclic graph 1218PDB power distribution board 1219PDF portable document format 1220PDM pulse-duration modulation 1221PDN pull-down network 1222PDP page {descriptor,directory} page 1223PDS product data sheet 1224PDU protocol data unit 1225PE protection enable 1226PE provider edge 1227PE portable executable 1228PEAP Protected EAP 1229PECI platform environment control interface 1230PEP protocol extension protocol 1231PER packed encoding rules 1232PFS perfect forward secrecy 1233PGAS partitioned global address space 1234PGE page global enable 1235PGO profile guided optimization 1236PGP Pretty Good Privacy 1237PHB PCI host bridge 1238PHP PHP: Hypertext Preprocessor 1239PIC performance instrumentation counters 1240PIC position independent code 1241PIC programmable interrupt controller 1242PICNIC problem in chair, not in computer 1243PID process id 1244PIE position independent executable 1245PIL Priority Interrupt Level 1246PIM personal information manager 1247PIM platform-independent model 1248PIO programmed input/output 1249PIPT physically indexed, physically tagged 1250PIR private information retrieval 1251PIQ prefetch input queue 1252PIT programmable interrupt timer 1253PIV personal identity verification 1254PIX Private Internet eXchange 1255PKCS public-key cryptography standards 1256PKI public key infrastructure 1257PLC programmable logic controller 1258PLD programmable logic device 1259PLL phase locked loop 1260PLRU pseudo LRU 1261PLT procedure linkage table 1262PLTM package level thermal management 1263PM power management 1264PM {phase,pulse} modulation 1265PMC performance monitoring counters 1266PME power management event 1267PMEG page map entry group 1268PMI performance monitoring infrastructure 1269PMI platform management interrupt 1270PMIC power management integrated circuit 1271PMIO port-mapped input/output 1272PMT photo-multiplier tube 1273PMU performance monitoring units 1274PMU power management unit 1275PNG portable network graphics 1276PNP plug and play 1277POE power over ethernet 1278POF probability of failure 1279POP Post Office Protocol 1280POP power on password 1281POR plan of record 1282POSIX Portable Operating System Interface [for Unix] 1283POST power on self test 1284POTS plain old telephone system 1285POWER Performance Optimization With Enhanced RISC 1286POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1287PP pair programming 1288PPB PCI [to] PCI bridge 1289PPC PowerPC 1290PPC Power Performance Computing 1291PPI pixels per inch 1292PPM pages per minute 1293PPP Point-to-Point Protocol 1294PPPOA Point-to-Point Protocol over ATM 1295PPPOE Point-to-Point Protocol over Ethernet 1296PPR processor programming reference 1297PPT powerpoint 1298PPT punched paper tape 1299PPU physics processing unit 1300PQC post-quantum cryptography 1301PRAM Parameter RAM 1302PRBS pseudorandom bit sequence 1303PRG pseudorandom generator 1304PRF pseudorandom function [family] 1305PRML partial response, maximum likelihood 1306PRN pseudorandom {noise,number} 1307PRNG pseudorandom number generator 1308PROM programmable read only memory 1309PRP pseudorandom permutation 1310PRU Programmable Realtime Unit 1311PS PostScript 1312PSD power spectral density 1313PSE page size extensions 1314PSK phase shift keying 1315PSK pre-shared key 1316PSTN public switched telephone network 1317PSW program status word 1318PTE page table entry 1319PTLA pseudo top level aggregator 1320PTP page table page 1321PTV perceived target value 1322PU processing unit 1323PUC personal unblocking code 1324PUN physical unit number 1325PV physical volume 1326PVC permanent virtual circuit 1327PVG physical volume group 1328PVI protected-mode virtual interrupt 1329PVRST Per-VLAN rapid spanning tree 1330PVST Per-VLAN Spanning Tree 1331PWM pulse width modulation 1332PXE preboot execution environment 1333QA quality assurance 1334QAM quadrature amplitude modulation 1335QAM quality assurance management 1336QBE query by example 1337QC quality control 1338QDI quasi delay insensitive 1339QCIF quarter common intermediate format 1340QOI quality of implementation 1341QOI quick order interface 1342QOS quality of service 1343QVL qualified vendor list 1344R/O read only 1345R/W read/write 1346RA receiver address 1347RA remote assistance 1348RA resource affinity 1349RA router advertisement 1350RAD rapid application development 1351RADIUS remote authentication dial-in user service 1352RAID redundant array of {independent,inexpensive} disks 1353RAII resource acquisition is initialization 1354RAM random access memory 1355RAS reliability, availability and serviceability 1356RAS remote access service 1357RAS restartable atomic sequence 1358RAS row address strobe 1359RAT register allocation table 1360RAT remote access trojan 1361RBF radial basis function 1362RBL reputation block list 1363RBL real-time blackhole list 1364RBNF routing backus-naur form 1365RBT red-black tree 1366RC release candidate 1367RC remote control 1368RC run commands 1369RCS Revision Control System 1370RCU read, copy, update 1371RDB Rigid Disk Block 1372RDBMS relational database management system 1373RDF Resource Description Framework 1374RDM relational data model 1375RDMA remote direct memory access 1376RDP remote desktop protocol 1377RDRAM Rambus DRAM 1378RE regular expression 1379REPL read, evaluate, print, loop 1380REST representational state transfer 1381RF radio frequency 1382RFB remote frame buffer 1383RFI radio frequency interference 1384RFO request for ownership 1385RFU reserved for future use 1386RGB red green blue 1387RGBA red green blue alpha 1388RGMII reduced gigabit media independent interface 1389RH read hit 1390RHEL Red Hat Enterprise Linux 1391RHL Red Hat Linux 1392RIB routing information base 1393RIFF Resource Interchange File Format 1394RIP Raster Image Processor 1395RIP Routing Information Protocol 1396RIR regional Internet registry 1397RISC reduced instruction set {computer,computing} 1398RKM ROM Kernel Manual 1399RLE run length encoding 1400RLL run length limited 1401RLO right-to-left override 1402RM read miss 1403RMCP Remote Management Control Protocol 1404RMI remote method invocation 1405RMO Relaxed Memory Ordering 1406RMPM rapid memory power management 1407RMS root mean square 1408RMW read, modify, write 1409RNG random number generator 1410ROM read only memory 1411ROP return-oriented programming 1412RPC remote procedure call 1413RPG Report Program Generator 1414RPKI resource PKI 1415RPL requested privilege level 1416RPM revolutions per minute 1417RPN reverse Polish notation 1418RPVST Rapid Per-VLAN Spanning Tree 1419RR random replacement 1420RR round robin 1421RS relay station 1422RSA Rivest, Shamir, [and] Adleman 1423RSC Receive Segment Coalescing 1424RSIP Realm Specific IP 1425RSN Robust Secure Network 1426RSS really simple syndication 1427RSS Receive Side Scaling 1428RSS residual sum of squares 1429RSTP Rapid Spanning Tree Protocol 1430RT real time 1431RTC real time clock 1432RTC real time computing 1433RTF rich text format 1434RTL register transfer language 1435RTL resistor-transistor logic 1436RTL right to left 1437RTOS real time operating system 1438RTP Real-time Transport Protocol 1439RTS request to send 1440RTT round trip time 1441RTTI run-time type information 1442RUP rational unified process 1443RW Rabin-Williams 1444RWM read-write memory 1445RX {receive,receiver} 1446S/PDIF Sony/Philips Digital Interface Format 1447SA security advisory 1448SA security association 1449SA source address 1450SA structured analysis 1451SAAS software as a service 1452SABRE Semi-automated business research environment 1453SACD super audio compact disc 1454SAD security association database 1455SAF-TE SCSI accessed fault-tolerant enclosure 1456SAGE Semi-automated ground environment 1457SAL {service,system} abstraction layer 1458SAM serial access memory 1459SAM sum addressed memory 1460SAML security assertion markup language 1461SAN storage area network 1462SAP service access point 1463SAPIC streamlined advanced programmable interrupt controller 1464SASD structured analysis, structured design 1465SASI Shugart Associates System Interface 1466SASL simple authentication [and] security layer 1467SATA serial advanced technology attachment 1468SAX simple API for XML 1469SB sound blaster 1470SBSA server base system architecture 1471SBU standard build unit 1472SC store conditional 1473SCA source code analyzer 1474SCADA supervisory control and data acquisition 1475SCC single chip cloud 1476SCC source code control 1477SCCP skinny call control protocol 1478SCCS Source Code Control System 1479SCI scalable coherent interface 1480SCI system control interrupt 1481SCIM smart common input method 1482SCM software configuration management 1483SCM source code management 1484SCM storage-class memory 1485SCO synchronous connection orientated 1486SCP secure copy 1487SCP system control processor 1488SCPI system control and power interface 1489SCSI Small Computer System Interface 1490SCTP Stream Control Transmission Protocol 1491SDDC software defined data center 1492SDEI software delegated exception interface 1493SDI symbol deinterleave 1494SDK software development kit 1495SDL Simple Declarative Language 1496SDL Simple Direct-media Layer 1497SDLC {software,system,systems} development life cycle 1498SDN software defined networking 1499SDP Session Description Protocol 1500SDR software defined radio 1501SDRAM synchronous dynamic random access memory 1502SDS software defined storage 1503SDT syntax-directed translation 1504SEA synchronous external abort 1505SEGV segmentation violation 1506SED self-encrypting drive 1507SED stream editor 1508SEMB serial ATA enclosure management bridge 1509SEO search engine optimization 1510SES SCSI enclosure services 1511SFC sequential function chart 1512SFI simple firmware interface 1513SFI software fault isolation 1514SFTP SSH File Transfer Protocol 1515SFTP Serial File Transfer Protocol 1516SFTP Simple File Transfer Protocol 1517SGI Silicon Graphics, Inc 1518SGI software generated interrupt 1519SGMII serial gigabit media independent interface 1520SGPIO serial general purpose input/output 1521SGRAM synchronous graphics random access memory 1522SHA secure hash algorithm 1523SICP structure and interpretation of computer programs 1524SIDH supersingular isogeny Diffie-Hellman 1525SIEM security information and event management 1526SIF source input format 1527SIFS short inter-frame space 1528SIM subscriber identity module 1529SIMD single instruction, multiple data 1530SIMM single inline memory module 1531SIP Session Initiation Protocol 1532SIR signal-to-interference ratio 1533SIR slow infrared 1534SISD single instruction, single data 1535SIV synthetic intialization vector 1536SLAAC stateless address auto-configuration 1537SLC single-level cell 1538SLDRAM synchronous-link dynamic random access memory 1539SLED single large expensive disk 1540SLI scalable link interface 1541SLI scan-line interleave 1542SLIC system license internal code 1543SLOC source lines of code 1544SLRU segmented LRU 1545SMA smart memory access 1546SMAF system management action field 1547SMAP Simple Mail Access Protocol 1548SMAP supervisor mode access prevention 1549SMART self-monitoring analysis and reporting technology 1550SMB Server Message Block 1551SMB system management bus 1552SMBIOS System Management BIOS 1553SMC system management controller 1554SMD storage module device 1555SMEP supervisor mode execution protection 1556SMF single mode fiber 1557SMI structure of management information 1558SMI system management interrupt 1559SMM system management mode 1560SMP serial management protocol 1561SMP symmetric multiprocessing 1562SMR shingled magnetic recording 1563SMR state machine replication 1564SMT simultaneous multithreading 1565SMTP Simple Mail Transfer Protocol 1566SMU system management unit 1567SNA systems network architecture 1568SNAP Sub-Network Access Protocol 1569SNIA Storage Networking Industry Association 1570SNMP Simple Network Management Protocol 1571SNR signal-to-noise ratio 1572SOA service oriented architecture 1573SOAP Simple Object Access Protocol 1574SOC system on chip 1575SOF start of frame 1576SOH start of header 1577SOHO small office/home office 1578SOL serial over LAN 1579SOM system on module 1580SP service pack 1581SP stack pointer 1582SPA storage pool allocator 1583SPAN switched port analyzer 1584SPARC scalable processor architecture 1585SPARQL SPARQL Protocol and RDF Query Language 1586SPD security policy database 1587SPD serial presence detect 1588SPDIF Sony/Philips digital interface format 1589SPI serial peripheral interface 1590SPI stateful packet inspection 1591SPIR standard portable intermediate representation 1592SPL secondary program loader 1593SPL spinlock 1594SPL system interrupt priority level 1595SPMD single process, multiple data 1596SPR special purpose register 1597SPT sectors per track 1598SQA software quality assurance 1599SQCIF sub quarter common intermediate format 1600SQL Structured Query Language 1601SRAM static random access memory 1602SRC sample rate conversion 1603SRP SCSI RDMA protocol 1604SRR shaped round robin 1605SRTP Secure Real-time Transport Protocol 1606SS self-snoop 1607SS stack segment 1608SSA static single assignment 1609SSAP source service access point 1610SSB single-sideband modulation 1611SSC spread spectrum clock 1612SSD solid state drive 1613SSE streaming SIMD extensions 1614SSFDC solid state floppy disc card 1615SSH secure shell 1616SSI server side includes 1617SSID service set identifier 1618SSTP secure socket tunneling protocol 1619SSL secure sockets layer 1620SSP stack smashing protection 1621STC software thermal control 1622STD state transition diagram 1623STM software transactional memory 1624STOMP Streaming Text Oriented Messaging Protocol 1625STP Spanning Tree Protocol 1626STP shielded twisted pair 1627STRG spanning tree root guard 1628SUN Stanford University Network 1629SUS Single Unix Specification 1630SUT system under test 1631SVC switched virtual circuit 1632SVG scalable vector graphics 1633SVGA Super Video Graphics Array 1634SVI {switch,switched} virtual interface 1635SVM secure virtual machine 1636SVM support vector machine 1637SVR System V Release 1638SVS Separate Virtual Space 1639SWF Shockwave Flash 1640SWIG simplified wrapper [and] interface generator 1641SYR symbol timing recovery 1642TA test assertion 1643TA transmitter address 1644TACACS terminal access controller access-control system 1645TAI international atomic time 1646TAO track at once 1647TAOCP The Art of Computer Programming 1648TAP Test Anything Protocol 1649TAS test and set 1650TB terabyte 1651TBNF transitional backus-naur form 1652TCB trace capture buffer 1653TCB trusted computing base 1654TCC thermal control circuit 1655TCL tool command language 1656TCP Transmission Control Protocol 1657TCQ tagged command queueing 1658TDC time [to] digital converter 1659TDD test-driven development 1660TDD time division duplex 1661TDM time division multiplexing 1662TDMA time division multiple access 1663TDOA time difference of arrival 1664TDP thermal design {point,power} 1665TDR time-domain reflectometry 1666TECO Text Editor and Corrector 1667TEE Trusted Execution Environment 1668TFT thin film transistor 1669TFTP Trivial File Transfer Protocol 1670TIAS try it and see 1671TIFF tagged image file format 1672TITS try it to see 1673TK temporal key 1674TKIP Temporal Key Integrity Protocol 1675TLA top level aggregator 1676TLB translation lookaside buffer 1677TLD top level domain 1678TLER time-limited error recovery 1679TLI transport layer interface 1680TLS thread local storage 1681TLS transport layer security 1682TM Turing machine 1683TM thermal monitor 1684TMG transmogrifier 1685TMDS transition minimized differential signaling 1686TMO timeout 1687TOD time of day 1688TOE TCP offload engine 1689TOFU trust on first use 1690TOS terms of service 1691TOS trusted operating system 1692TOS type of service 1693TOTP time-based one time password 1694TP transaction processing 1695TPI tracks per inch 1696TPM transactions per minute 1697TPM trusted platform module 1698TPR task priority register 1699TPS transactions per second 1700TPS transmission parameters signaling 1701TR task register 1702TR token ring 1703TRL timing recovery loop 1704TRNG true random number generator 1705TS terminal services 1706TS time series 1707TS time stamp 1708TS transport stream 1709TSAN Thread Sanitizer 1710TSC time stamp counter 1711TSD time stamp disable 1712TSDB time series database 1713TSL test, set, lock 1714TSO time sharing option 1715TSO TCP segmentation offload 1716TSO Total Store Ordering 1717TSP Time-Stamp Protocol 1718TSP Tunnel Setup Protocol 1719TSP time synchronization protocol 1720TSP traveling salesman problem 1721TSS task state segment 1722TSV tab-separated values 1723TTL time to live 1724TTL transistor-transistor logic 1725TTM translation table maps 1726TTY teletype 1727TU translation unit 1728TUI {terminal,text-based,textual} user interface 1729TX {transmit out,transmitter} 1730TXG transaction group 1731TZ time zone 1732UAC user {access,account} control 1733UAF use-after-free 1734UART universal asynchronous receiver/transmitter 1735UAT user acceptance testing 1736UB undefined behavior 1737UBSAN Undefined Behavior Sanitizer 1738UC uncacheable 1739UCS uniform-cost search 1740UCS unified computing system 1741UCS universal coded character set 1742UDI uniform driver interface 1743UDMA ultra DMA 1744UDO ultra density optical 1745UDP User Datagram Protocol 1746UDS Unix Domain Socket 1747UEFI unified extensible firmware interface 1748UFO UDP fragmentation offload 1749UFS Unix File System 1750UGA universal graphics adapter 1751UI unit interval 1752UI user interface 1753UICC universal integrated circuit card 1754UID unique identifier 1755UID user identifier 1756UL upload 1757UMA uniform memory access 1758UMA upper memory area 1759UMB upper memory block 1760UML unified modeling language 1761UMPC ultra-mobile PC 1762UPNP universal plug and play 1763UPS uninterruptible power supply 1764URI uniform resource identifier 1765URL uniform resource locator 1766URN uniform resource name 1767USART universal synchronous/asynchronous receiver/transmitter 1768USB universal serial bus 1769USWC uncacheable speculative write combining 1770UT unit test 1771UTC coordinated universal time 1772UTF unicode transformation formats 1773UTP unshielded twisted pair 1774UTS UNIX time-sharing 1775UUCP Unix-to-Unix Copy Protocol 1776UUID universally unique identifier 1777UUOC useless use of cat 1778UUT unit under test 1779UX user experience 1780VA vertical alignment 1781VA virtual address 1782VA volt-ampere 1783VAX virtual address extension 1784VB Visual Basic 1785VBR volume boot record 1786VCA variable-gain amplifier 1787VCC common collector voltage 1788VCCP virtual chassis control protocol 1789VCF voltage-controlled filter 1790VCM virtual channel memory 1791VCO voltage-controlled oscillator 1792VCP virtual chassis port 1793VCS version control system 1794VDPAU Video Decode and Presentation API for Unix 1795VES virtual execution system 1796VESA Video Electronics Standards Association 1797VFO variable-frequency oscillator 1798VFS virtual file system 1799VG volume group 1800VGA Video Graphics Array 1801VHDCI very high density cable interconnect 1802VID {VLAN,voltage level} identifier 1803VIM Vi IMproved 1804VIPT virtually indexed, physically tagged 1805VIVT virtually indexed, virtually tagged 1806VLAN virtual local area network 1807VLD variable-length decoding 1808VLIW very long instruction word 1809VLSI very large scale integration 1810VLSM variable length subnet mask 1811VM virtual {machine,memory} 1812VME virtual mode extension 1813VMX vector multimedia extensions 1814VMX virtual machine extensions 1815VNC virtual network computing 1816VOD video on demand 1817VPD vital product data 1818VPN virtual private network 1819VPWS virtual private wire service 1820VR virtual reality 1821VRAM video random access memory 1822VRF virtual routing and forwarding 1823VRM voltage regulator module 1824VROC Virtual RAID On CPU 1825VRRP Virtual Router Redundancy Protocol 1826VSTP VLAN Spanning Tree Protocol 1827VTP VLAN Trunking Protocol 1828VXFS Veritas file system 1829VXVM Veritas volume manager 1830W watt 1831W3C World Wide Web Consortium 1832WAFL write anywhere file layout 1833WAMP Web Application Messaging Protocol 1834WAN wide area network 1835WAP Wireless Application Protocol 1836WAP wireless access point 1837WDM Windows Driver Model 1838WDDM Windows Display Driver Model 1839WDT watchdog timer 1840WEP Wired Equivalent Privacy 1841WFI wait for interrupt 1842WFQ weighted fair queuing 1843WH write hit 1844WHEA Windows hardware error architecture 1845WIFI wireless fidelity 1846WLAN wireless local area network 1847WM write miss 1848WMF Windows meta file 1849WMI Windows Management Instrumentation 1850WOL Wake-on-LAN 1851WOM Wake-on-Modem 1852WOR Wake-on-Ring 1853WORM write once read many 1854WP WordPerfect 1855WP word processor 1856WP write protect 1857WPA Wi-Fi Protected Access 1858WPA2 Wi-Fi Protected Access II 1859WPAD web proxy auto-discovery protocol 1860WPS Wi-Fi Protected Setup 1861WRAM window random access memory 1862WS web services 1863WTC write through caching 1864WTD weighted tail drop 1865WWAN wireless wide area network 1866WWW world wide web 1867WYSIAYG what you see is all you get 1868WYSIWYG what you see is what you get 1869XBAR crossbar 1870XDMCP X Display Manager control protocol 1871XER XML encoding rules 1872XGA Extended Graphics Array 1873XHR XMLHttpRequest 1874XIP execute in place 1875XML Extensible Markup Language 1876XNA XNA's not acronymed 1877XNS Xerox network systems 1878XOR exclusive or 1879XP extreme programming 1880XSI X/Open System Interface 1881XSL extensible stylesheet language 1882XSLT extensible stylesheet language transformations 1883XSS cross site scripting 1884XT extended technology 1885XTACACS extended terminal access controller access-control system 1886XTI X/Open transport interface 1887XUL XML user interface language 1888YACC yet another compiler compiler 1889YAML YAML ain't markup language 1890YANG yet another next generation 1891YAWPFAPR you are welcome; please file a problem report 1892YP Yellow Pages 1893YTD year to date 1894ZAP ZFS attribute processor 1895ZBR zone bit recording 1896ZFOD zero-filled on demand 1897ZFS zettabyte file system 1898ZIF zero insertion force 1899ZIFS zero insertion force socket 1900ZIL ZFS intent log 1901ZMA zone multicast address 1902ZOI zero one infinity 1903ZOI zone of influence 1904ZPL ZFS Posix layer 1905ZVOL ZFS Volume 1906