acronyms.comp revision 1.345
1$NetBSD: acronyms.comp,v 1.345 2023/03/03 15:29:48 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 47ALS ambient light sensor 48ALSA advanced Linux sound architecture 49ALU arithmetic and logical unit 50ALUA asymmetric logical unit access 51AM access method 52AM alignment mask 53AM amplitude modulation 54AMD Advanced Micro Devices Inc 55AMDD Agile model-driven development 56AMI alternate mark inversion 57AMP asymmetric multiprocessing 58AMQP advanced message queuing protocol 59AMT active management technology 60AN Arabic number 61ANR application not responding 62ANSI American National Standards Institute 63AO analog output 64AOC add-on card 65AOL Alert-on-LAN 66AOS add or subtract 67AOT ahead of time 68AP access point 69AP application processor 70APFS Apple file system 71API application programming interface 72APEI ACPI platform error interface 73APIC advanced programmable interrupt controller 74APIPA automatic private IP addressing 75APM advanced power management 76APM application performance management 77APU accelerated processing unit 78APT advanced persistent threat 79AQM active queue management 80ARAT always running APIC timer 81ARC adaptive replacement cache 82ARC Advanced RISC Computing 83ARC automatic reference counting 84ARM Advanced RISC Machines 85ARP Address Resolution Protocol 86ARPA Advanced Research Projects Agency 87ARQ automatic repeat request 88ARR address range register 89ARU audio response unit 90AS autonomous system 91ASA Adaptive Security Appliance 92ASAN Address Sanitizer 93ASC advanced smart cache 94ASCII American Standard Code for Information Interchange 95ASD agile software development 96ASE advanced software environment 97ASF alert standard format 98ASIC application-specific integrated circuit 99ASK amplitude shift keying 100ASLR address space layout randomization 101ASN autonomous system number 102ASP active server pages 103ASP auxiliary storage pool 104ASPM active state power management 105ASQ automated software quality 106ASR address space register 107ASR Apple software restore 108AST abstract syntax tree 109AST asynchronous system trap 110AT access time 111AT advanced technology 112ATA advanced technology attachment 113ATAPI advanced technology attachment packet interface 114ATC address translation cache 115ATF ARM trusted firmware 116ATF automated testing framework 117ATM asynchronous transfer mode 118ATX advanced technology extended 119AV anti virus 120AVB audio video bridging 121AVL Adelson-Velsky-Landis 122AVX advanced vector extensions 123AWDL Apple wireless direct link 124BA byte align 125BAL basic assembly language 126BAR base address register 127BBS bulletin board system 128BCC blind carbon copy 129BCD binary coded decimal 130BCH boot console handler 131BCR byte count register 132BCS base configuration space 133BD baud 134BDD binary decision diagram 135BDI bit deinterleave 136BDUF big design up front 137BEDO burst extended data output 138BER basic encoding rules 139BER bit error {rate,ratio} 140BERT boot error record table 141BFD bidirectional forwarding detection 142BFD binary {file,format} descriptor 143BFKL big fscking kernel lock 144BFS breadth-first search 145BFT binary file transfer 146BGA ball grid array 147BGP Border Gateway Protocol 148BGPSEC BGP Security 149BIND Berkeley Internet Name Daemon 150BIOS Basic Input/Output System 151BIOS built-in operating system 152BIST built-in self-test 153BIU bus interface unit 154BKDG BIOS and kernel developer's guide 155BLAS basic linear algebra subprograms 156BLC back light control 157BLE Bluetooth low energy 158BLOB binary large object 159BM bus master 160BMC baseboard management controller 161BMP basic multilingual plane 162BMP bitmap image file 163BMIC bus master interface controller 164BN boundary neutral 165BNF Backus-Naur form 166BO binary output 167BOF beginning of file 168BOM beginning of message 169BOM byte order mark 170BP base pointer 171BP boot processor 172BPB BIOS parameter block 173BPDU bridge protocol data unit 174BPF Berkeley Packet Filter 175BPI bits per inch 176BPM business process modelling 177BPS bits per second 178BPSK binary phase shift keying 179BQS Berkeley quality software 180BRE basic regular expression 181BS backspace 182BS binary sequence 183BSA basic service area 184BSD Berkeley Software Distribution 185BSDP Boot Service Discovery Protocol 186BSF bit scan forward 187BSOD blue screen of death 188BSP binary space partition 189BSP board support package 190BSP bootstrap processor 191BSR bit scan reverse 192BSS basic service set 193BSS block started by symbol 194BSSID basic service set identifier 195BT BitTorrent 196BT Bluetooth 197BT bit test 198BTC bit test [and] complement 199BTM bus transport mechanism 200BTR bit test [and] reset 201BTS bit test [and] set 202BTS bug tracking system 203BW bandwidth 204BWM block-write mode 205BUAG big ugly ASCII graphic 206CA certificate authority 207CACLS change access control lists 208CAD computer-aided design 209CAM computer assisted manufacturing 210CAM conditional access module 211CAM content addressable memory 212CARP Common Address Redundancy Protocol 213CAS column address strobe 214CAS compare and swap 215CAS computer algebra system 216CASE computer aided software engineering 217CAU control access unit 218CAV constant angular velocity 219CBC cipher block chaining 220CBR constant bit rate 221CC carbon copy 222CCC Chaos Computer Club 223CCD charge coupled device 224CCI co-channel interferer 225CCNUMA cache-coherent non-uniform memory access 226CCTL command completion time limit 227CD cache disable 228CD compact disc 229CDDA compact disc digital audio 230CDL compiler description language 231CDMA code division multiple access 232CDN content delivery network 233CDP Cisco Discovery Protocol 234CDRAM cache dynamic random access memory 235CER canonical encoding rules 236CE customer edge 237CF compact flash 238CFB cipher feedback 239CFG context-free grammar 240CFG control-flow graph 241CFI control-flow integrity 242CG control gate 243CGA Color Graphics Adapter 244CGI common gateway interface 245CGN Carrier-Grade NAT 246CHAP Challenge-Handshake Authentication Protocol 247CHFS chip file system 248CHS cylinder/head/sector 249CI continuous integration 250CI {common,component} interface 251CIA confidentiality, integrity, availability 252CIDR Classless Inter-Domain Routing 253CIF common intermediate format 254CIFS Common Internet File System 255CIL common intermediate language 256CIR carrier-to-interference ratio 257CIS contact image sensor 258CISC complex instruction set {computer,computing} 259CJK Chinese, Japanese, [and] Korean 260CLF common log format 261CLI command line interface 262CLI common language infrastructure 263CLR common language runtime 264CLS common language specification 265CLTT closed loop thermal throttling 266CLUT color look-up table 267CLV constant linear velocity 268CM configuration management 269CMA concert multithread architecture 270CMC chassis management controller 271CMC corrected machine check 272CMC certificate management over CMS 273CMS {configuration,content,course} management system 274CMS cryptographic message syntax 275CMI control {management,method} interface 276CMOS complementary metal-oxide-semiconductor 277CMP chip multi-processing 278CMS content management system 279CMYK cyan magenta yellow black 280CN {common,canonical} name 281CNC computer numerical control 282CNR carrier-to-noise ratio 283COA change of authority 284COF current operating frequency 285COFDM coded orthogonal frequency division multiplexing 286COFF common object file format 287COM component object model 288COM computer on module 289COMA cache-only memory architecture 290CORBA common object request broker architecture 291COS class of service 292COW copy-on-write 293CP continuous pilot 294CPA chosen-plaintext attack 295CPB core performance boost 296CPC central processor complex 297CPC cpu performance counters 298CPE common phase error 299CPE common platform enumeration 300CPER common platform error record 301CPG clock pulse generator 302CPI cycles per instruction 303CPL current privilege level 304CPLD complex programmable logic device 305CPP C preprocessor 306CPS characters per second 307CPS continuation-passing style 308CPT command pass through 309CPU central processing unit 310CR carriage return 311CRC cyclic redundancy check 312CRL carrier recovery loop 313CRLF carriage return line feed 314CSPM cloud security posture management 315CSU C start up 316CRT cathode ray tube 317CRTP curiously recurring template pattern 318CRUD create, read, update, and delete 319CS cable select 320CS chip select 321CS code segment 322CS computer science 323CSDL {common,conceptual} schema definition language 324CSI channel state information 325CSI common system interface 326CSMA carrier sense multiple access 327CSMA/CA carrier sense multiple access with collision avoidance 328CSMA/CD carrier sense multiple access with collision detection 329CSP communicating sequential processes 330CSP content security policy 331CSP constrain satisfaction problems 332CSP cryptographic service provider 333CSR control [and] status registers 334CSRG Computer Systems Research Group 335CSS cascading style sheets 336CST common spanning tree 337CSV comma-separated values 338CTF compact c type format 339CTM close to metal 340CTR counter [mode] 341CTS clear to send 342CTS common type system 343CUA common user access 344CUT coordinated universal time 345CV control voltage 346CVE common vulnerabilities and exposures 347CVS Concurrent Versions System 348DA destination address 349DAA distributed application architecture 350DAAP digital audio access protocol 351DAB digital audio broadcasting 352DAC digital [to] analog converter 353DAC discretionary access control 354DAD duplicate address detection 355DANE DNS-based Authentication of Named Entities 356DAO disk at once 357DAP Directory Access Protocol 358DAT digital audio tape 359DAT dynamic acceleration technology 360DB database 361DBA database administrator 362DBA dynamic bandwidth allocation 363DBB data bus buffer 364DBC design by contract 365DBL dynamic buffer limiting 366DBMS database management system 367DBS database server 368DC data center 369DC direct current 370DCC Direct Client-to-Client 371DCC direct cable connect 372DCD data carrier detect 373DCE data control equipment 374DCE distributed computing environment 375DCIM data center infrastructure management 376DCIM digital camera images 377DCL Digital Command Language 378DCOM distributed component object model 379DCOP Desktop COmmunication Protocol 380DCS data collection systems 381DCT discrete cosine transform 382DCU data cache unit 383DDC display data channel 384DDE dynamic data exchange 385DDI device drivers interface 386DDK device driver kit 387DDL data description language 388DDR double data rate 389DDS direct digital sound 390DDWG Digital Display Working Group 391DE debugging extensions 392DE desktop environment 393DEA data encryption algorithm 394DEC Digital Equipment Corporation 395DEK data encryption key 396DEP data execution prevention 397DER distinguished encoding rules 398DES Data Encryption Standard 399DF don't fragment 400DFA deterministic finite automaton 401DFC data flow control 402DFS depth first search 403DFS distributed file system 404DFSAN Data Flow Sanitizer 405DFT diagnostic function test 406DFT discrete Fourier transform 407DGL data generation language 408DGEMM double precision general matrix multiply 409DH Diffie-Hellman 410DHCP Dynamic Host Configuration Protocol 411DIA dedicated Internet access 412DIB device independent bitmap 413DIFS distributed inter-frame space 414DIMM dual inline memory module 415DIRT design in real time 416DKI driver/kernel interface 417DL diode logic 418DL discrete logarithm 419DL download 420DLCI data link connection identifier 421DLE data link escape 422DLL dynamic link library 423DLNA digital living network alliance 424DLP discrete logarithm problem 425DMA direct memory access 426DMI desktop management interface 427DMS document management system 428DMT discrete multitone modulation 429DMU data management layer 430DNARD Digital network appliance reference design 431DND drag and drop 432DNLC directory name lookup cache 433DNS Domain Name System 434DNSSEC DNS Security Extensions 435DOE distributed object environment 436DOF data over fibre 437DOM document object model 438DOS denial of service 439DOS disk operating system 440DP DisplayPort 441DPC deferred procedure call 442DPCM differential pulse code modulation 443DPD dead peer detection 444DPI deep packet inspection 445DPI dots per inch 446DPL descriptor privilege level 447DPS Display PostScript 448DPST display power savings technology 449DRAAS disaster recovery as a service 450DRAM dynamic random access memory 451DRBG deterministic random bit generator 452DRI direct rendering infrastructure 453DRM digital rights management 454DRM direct rendering manager 455DRRS display refresh rate switching 456DS debug store 457DS differentiated services 458DS9000 DeathStation 9000 459DS9K DeathStation 9000 460DSA digital signature algorithm 461DSAP destination service access point 462DSB double-sideband modulation 463DSCP differentiated services code point 464DSDT differentiated system descriptor table 465DSF device special file 466DSL dataset and snapshot layer 467DSL digital subscriber line 468DSL domain specific language 469DSLAM digital subscriber line access multiplexer 470DSN delivery status notification 471DSO dynamic shared object 472DSP digital signal processor 473DSSS direct sequence spread spectrum 474DTB device tree blob 475DTC device tree compiler 476DTD document type definition 477DTE data terminal equipment 478DTE dumb terminal emulator 479DTL diode-transistor logic 480DTLS datagram transport layer security 481DTS device tree source 482DTS digital thermal sensor 483DUT device under test 484DVB digital video broadcasting 485DVCS distributed version control system 486DVD digital versatile disc 487DVFS dynamic voltage and frequency scaling 488DVI device independent 489DVI Digital Visual Interface 490DVR digital video recorder 491DWARF Debugging With Attributed Record Formats 492E-XER extended XML encoding rules 493EABI embedded-application binary interface 494EAI Email Address Internationalization 495EAI Enterprise Application Integration 496EAP Extensible Authentication Protocol 497EAPOL EAP over Lan 498EAV entity-attribute-value model 499EAV ethernet audio/video bridging 500EBCDIC Extended Binary Coded Decimal Interchange Code 501EBDA Extended BIOS Data Area 502EBNF extended backus-naur form 503EBR extended boot record 504EC elliptic curve 505ECC elliptic curve cryptography 506ECC error correction code 507ECDH elliptic curve Diffie-Hellman 508ECDL elliptic curve discrete logarithm 509ECDLP elliptic curve discrete logarithm problem 510ECDSA elliptic curve digital signature algorithm 511ECL emitter-coupled logic 512ECN explicit congestion notification 513ECP enhanced capability port 514ECS enhanced chip set 515ECS extended configuration space 516EDAC error detection and correction 517EDAT enhanced dynamic acceleration technology 518EdDSA Edwards curve digital signature algorithm 519EDGE explicit data graph execution 520EDID extended display identification data 521EDO extended data out 522EDS electronical data sheet 523EDSAC electronic delay storage automatic calculator 524EDVAC electronic discrete variable automatic computer 525EEE energy efficient ethernet 526EEE embrace, extend, extinguish 527EEPROM electrically erasable programmable read only memory 528EFI extensible firmware interface 529EFL emitter follower logic 530EFM eight to fourteen modulation 531EFS extent file system 532EGA Enhanced Graphics Adapter 533EGP exterior gateway protocol 534EH extension header 535EIDE enhanced IDE 536EISA extended industry standard architecture 537EINJ error injection table 538ELF executable and linking format 539ELS entry level system 540EMI electro-magnetic interference 541EMP electro-magnetic pulse 542EMR electro-magnetic radiation 543EMACS Editor MACroS 544ENIAC electronic numerical integrator and computer 545EOF end of file 546EOI end of interrupt 547EOIS end of interactive support 548EOL end of life 549EOL end of line 550EOT end of transmission 551EPIC explicitly parallel instruction computing 552EPP enhanced parallel port 553EPRML extended partial response, maximum likelihood 554EPROM erasable programmable read only memory 555EPT extended page tables 556ERC error recovery control 557ERD emergency recovery disk 558ERD entity relationship diagram 559ERE extended regular expression 560ERST error record serialization table 561ESAN Efficiency Sanitizer 562ESB enterprise service bus 563ESDI enhanced small disk interface 564ESDRAM enhanced synchronous dynamic random access memory 565ESI enclosure services interface 566ESS electronic switching system 567ESS extended service set 568ESSID extended service set identifier 569EST enhanced speedstep 570ETL extract, transform, load 571EU execution unit 572EULA end user license agreement 573FAT file allocation table 574FBRAM frame buffer random access memory 575FCIF full common intermediate format 576FCL fiber channel loop 577FCS frame check sequence 578FDC floppy disk controller 579FDD floppy disk drive 580FDDI fiber distributed data interface 581FDE full disk encryption 582FDT flattened device tree 583FEA finite element analysis 584FEC forward error correction 585FET field-effect transistor 586FF finite field 587FF form feed 588FFDH finite-field Diffie-Hellman 589FFH functional fixed hardware 590FFI foreign function interface 591FFM focus follows mouse 592FFS Fast File System 593FFS find first set 594FFT fast Fourier transform 595FG floating gate 596FHRP first hop redundancy protocol 597FHSS frequency hop spread spectrum 598FID frequency identifier 599FIFO first in, first out 600FILO first in, last out 601FIPS Federal Information Processing Standards 602FIR fast infrared 603FLOPS floating [point] operations per second 604FLOSS free/libre/open source software 605FM frequency modulation 606FMR false match rate 607FOSS free/open source software 608FPGA field programmable gate array 609FPM fast page mode 610FPR floating point register 611FPU floating point unit 612FQDN fully qualified domain name 613FRR false rejection rate 614FRU field replaceable unit 615FS file system 616FSB front side bus 617FSCK file system check 618FSF Free Software Foundation 619FSK frequency shift keying 620FSM finite-state machine 621FTA fault tree analysis 622FTL flash translation layer 623FTP File Transfer Protocol 624FTPS File Transfer Protocol Secure 625FTTH fiber to the home 626FUS fast user switching 627FWH firmware hub 628FWS folding white space 629GAL generic array logic 630GARP generic attribute registration protocol 631GAS generic address structure 632GC garbage collector 633GCC GNU Compiler Collection 634GCM Galois counter mode 635GCR group-coded recording 636GDI Graphics Device Interface 637GDT global descriptor table 638GECOS general comprehensive operating supervisor 639GEM graphics environment manager 640GEM graphics execution manager 641GEMM general matrix multiply 642GENA general event notification architecture 643GHC Glasgow Haskell compiler 644GHES generic hardware error source 645GIC generic interrupt controller 646GID group identifier 647GIF graphics interchange format 648GLBP gateway load balancing protocol 649GMCH graphics and memory controller hub 650GNU GNU's Not Unix 651GOP graphics output protocol 652GOT global offset table 653GPE general purpose event 654GPF general protection fault 655GPG GNU Privacy Guard 656GPL [GNU] General Public License 657GPR general purpose register 658GPS generalized processor sharing 659GPT GUID partition table 660GPU graphics processing unit 661GR golden ratio 662GRE generic routing encapsulation 663GRO generic receive offload 664GSI global system interrupt 665GSO generic send offload 666GUI graphical user interface 667GUID globally unique identifier 668GUS Gravis UltraSound 669GVFS git virtual file system 670HA high availability 671HAL hardware abstraction layer 672HAT hashed array tree 673HATEOAS hypermedia as the engine of application state 674HBA host bus adapter 675HCF halt and catch fire 676HCI host controller interface 677HCI human-computer interaction 678HCL hardware compatibility list 679HDCP High-bandwidth Digital Content Protection 680HDD hard disk drive 681HDL hardware description language 682HDMI High-Definition Multimedia Interface 683HDTV high-definition television 684HECI host embedded controller interface 685HEST hardware error source table 686HEVC high efficiency video coding 687HF high frequency 688HFM highest frequency mode 689HFS hierarchical file system 690HID human interface device 691HKDF HMAC-based key derivation function 692HKP HTTP Keyserver Protocol 693HLL high-level language 694HMA high memory area 695HMI human-machine interface 696HOOD hierarchical object oriented design 697HOTP HMAC-based one time password 698HP Hewlett-Packard 699HPC high performance computing 700HPD hot plug detection 701HPET high precision event timer 702HSM hardware security module 703HSM hierarchical storage management 704HSRP hot standby router protocol 705HT hyper-threading 706HTC hardware thermal control 707HTCC high temperature co-fired ceramic 708HTML HyperText Markup Language 709HTT hyper-threading technology 710HTTP Hypertext Transfer Protocol 711HTTPS Hypertext Transfer Protocol Secure 712HVM hardware virtual machine 713HVDS High-Voltage Differential Signaling 714HWASAN Hardware-assisted Address Sanitizer 715HZ Hertz 716I2O intelligent input/output 717IA information assurance 718IAAS infrastructure as a service 719IANA Internet Assigned Numbers Authority 720IBC iterated block cipher 721IBM International Business Machines 722IBPI international blinking pattern interpretation 723IBS instruction based sampling 724IBSS independent basic service set 725IC integrated circuit 726ICA independent computer architecture 727ICACLS integrity control access control lists 728ICB Internet Citizen's Band 729ICE in-circuit emulator 730ICE internal compiler error 731ICH I/O controller hub 732ICMP Internet Control Message Protocol 733ICT information and communications technology 734ICW initialization command word 735IDA Intel dynamic acceleration 736IDCMP Intuition direct communication message port 737IDCT inverse discrete cosine transform 738IDE integrated development environment 739IDE integrated drive electronics 740IDPS intrusion detection [and] prevention system 741IDRP inter-domain routing protocol 742IDS intrusion detection system 743IDT interrupt descriptor table 744IE Internet Explorer 745IEC International Electrotechnical Commission 746IEEE Institute of Electrical and Electronics Engineers 747IESG Internet Engineering Steering Group 748IETF Internet Engineering Task Force 749IF intermediate frequency 750IFCM isochronous flow control mode 751IFF Interchange File Format 752IFS internal field separator 753IGD Internet gateway device 754IGMP Internet Group Management Protocol 755IGP interior gateway protocol 756IHV independent hardware vendor 757IKE Internet key exchange 758ILM internal loopback mode 759ILOM integrated lights-out management 760ILP instruction level parallelism 761IM instant messaging 762IME input method editor 763IMAP Internet Message Access Protocol 764IMC integrated memory controller 765IMCR interrupt mode configuration register 766IMR interrupt mask register 767IMS information management system 768IMSI international mobile subscriber identity 769INCITS InterNational Committee for Information Technology Standards 770INODE index node 771IO input/output 772IOCTL input/output control 773IOM input/output managers 774IOMMU input/output memory management unit 775IOT Internet of Things 776IP Internet Protocol 777IP intellectual property 778IPC instructions per cycle 779IPC interprocess communication 780IPCF interprocess communication facility 781IPE integrated programming environment 782IPI intelligent peripheral interface 783IPI interprocessor interrupt 784IPL Initial Program Load 785IPL Interrupt Priority Level 786IPMB Intelligent Platform Management Bus 787IPMI Intelligent Platform Management Interface 788IPNG Internet Protocol, Next Generation 789IPS in-plane switching 790IPS intrusion prevention system 791IPSEC Internet Protocol Security 792IRC Internet Relay Chat 793IRDA infrared data association 794IRDP ICMP Router Discovery Protocol 795IR intermediate representation 796IRQ interrupt request 797IRQL interrupt request level 798IRR interrupt request register 799IRTF Internet Research Task Force 800IS information system 801ISA industry standard architecture 802ISA instruction set architecture 803ISE instant secure erase 804ISDN integrated services digital network 805ISI inter-symbol interference 806ISL initial system load 807ISM industrial, scientific, [and] medical 808ISMS information system management system 809ISN initial serial number 810ISO International Standards Organization 811ISOC Internet Society 812ISP Internet service provider 813ISR in-service register 814ISR interrupt service routine 815IST internal spanning tree 816IST interrupt stack table 817ISV independent software vendor 818IT information technology 819ITB Intel Turbo Boost 820ITIL information technology infrastructure library 821ITP in-target probe 822ITSM IT service management 823IV initialization vector 824IVT interrupt vector table 825JBOD just a bunch of disks 826JCL Job Control Language 827JFET junction [gate] field-effect transistor 828JIT just in time 829JPEG Joint Photographic Experts Group 830JRE Java Runtime Environment 831JSON JavaScript Object Notation 832JTAG joint test action group 833KASAN Kernel Address Sanitizer 834KASLR kernel address space layout randomization 835KB keyboard 836KB kilobyte 837KBD keyboard 838KBD kilobaud 839KCS keyboard controller style 840KLOC thousand lines of code 841KMS kernel-mode setting 842KPI kernel programming interface 843KVA kernel virtual address 844KVM kernel virtual machine 845KVM kernel virtual memory 846KVM keyboard, video, [and] mouse 847L2CAP link layer control and adaptation protocol 848LAG link aggregation group 849LAMP Linux Apache MySQL {Perl,PHP,Python} 850LAN local area network 851LAPIC local advanced programmable interrupt controller 852LAR load access rights 853LBA logical block addressing 854LBNF labeled backus-naur form 855LBS location-based service 856LCD liquid crystal display 857LCP link control protocol 858LDA local delivery agent 859LDAP Lightweight Directory Access Protocol 860LDR light-dependent resistor 861LDT local descriptor table 862LE logical extent 863LED light emitting diode 864LELL low energy link layer 865LER label edge router 866LF line feed 867LF low frequency 868LFM lowest frequency mode 869LFN long file names 870LFO low-frequency oscillation 871LFS log-structured file system 872LFU least frequently used 873LHP loop heat pipe 874LIF logical interchange format 875LIFO last in, first out 876LILO LInux LOader 877LILO last in, last out 878LINT local interrupt 879LIR local Internet registry 880LISP LISt Processor 881LISP Locator/ID Separation Protocol 882LKM {Linux,loadable} kernel module 883LKML Linux kernel mailing list 884LL load linked 885LL/SC load linked/store conditional 886LLC logical link control 887LLD low-level design 888LLDD low-level design document 889LLDP link layer discovery protocol 890LLF low level format 891LLMNR link-local multicast name resolution 892LLVM Low Level Virtual Machine 893LM long mode 894LMCE local machine check exception 895LMI local management interface 896LMM link management mode 897LMP link management protocol 898LNO loop nest optimization 899LOC lines of code 900LOM lights-out management 901LPE Linux performance events 902LPC low pin count 903LPS local positioning system 904LRC longitudinal redundancy check 905LRM left-to-right mark 906LRO left-to-right override 907LRU least recently used 908LS link state 909LSAN Leak Sanitizer 910LSB Linux standards base 911LSB least significant {bit,byte} 912LSI large scale integration 913LSL load segment limit 914LSM log structured merge 915LSN Large Scale NAT 916LSN log sequence number 917LSO large send offload 918LSR label switch router 919LTCC low temperature co-fired ceramic 920LTO linear tape-open 921LTO link time optimization 922LTR left to right 923LTR load task register 924LTR letter(-sized paper) 925LTS long term support 926LUA Lua Uppercase Accident 927LUN logical unit number 928LV logical volume 929LVM logical volume management 930LVT local vector table 931LVDS Low-Voltage Differential Signaling 932LWP light-weight process 933LZSS Lempel Ziv Storer Szymanski 934LZW Lempel Ziv Welch 935MAB MAC authentication bypass 936MAC mandatory access control 937MAC {media,medium} access control 938MAC message authentication {check,code} 939MADT multiple APIC descriptor table 940MAMR microwave-assisted magnetic recording 941MB megabyte 942MBA multi-boot agent 943MBR master boot record 944MBS megabits per second 945MC memory controller 946MCA machine check architecture 947MCA MicroChannel architecture 948MCC multiversion concurrency control 949MCE machine check exception 950MCGA Multi-Color Graphics Array 951MCH memory controller hub 952MCLAG multi-chassis link aggregation group 953MCM multi-chip module 954MCQ memory controlled queue 955MD machine-dependent 956MD MiniDisc 957MD-SAL model-driven service abstraction layer 958MDA mail delivery agent 959MDA Monochrome Display Adapter 960MDC Management Data Clock 961MDI Medium Dependent Interface 962MDI-X Medium Dependent Interface Crossover 963MDIO Management Data Input/Output 964MDMX MIPS Digital Media eXtension 965MDRAM multibank dynamic random access memory 966MESI modified, exclusive, shared, invalid 967MFC merge from current 968MFC Microsoft Foundation Classes 969MFM modified frequency modulation 970MFU most frequently used 971MGCP media gateway control protocol 972MHU message handling unit 973MI machine-independent 974MI machine interface 975MIB management information base 976MIC message integrity {check,code} 977MID mobile Internet device 978MIDI musical instrument digital interface 979MIF management information format 980MII media independent interface 981MIM man in the middle 982MIMD multiple instruction, multiple data 983MIME Multipurpose Internet Mail Extensions 984MIMO multiple input multiple output 985MIPS million instructions per second 986MIPS Microprocessor without Interlocked Pipeline Stages 987MISD multiple instruction, single data 988MIT Massachusetts Institute of Technology 989MITM man in the middle 990ML machine language 991ML machine learning 992ML mailing list 993ML markup language 994ML maximum likelihood 995MLAG multi-chassis link aggregation group 996MLC multi-level cell 997MLD multicast listener discovery 998MLHP micro loop heat pipe 999MLIR multi-level intermediate representation 1000MMF multi-mode fiber 1001MMIC monolithic microwave integrated circuit 1002MMIO memory mapped input/output 1003MMORPG massive multiplayer online role playing game 1004MMRP multiple MAC registration protocol 1005MMU memory management unit 1006MMX matrix math extension 1007MMX multimedia extension 1008MMX multiple math extension 1009MO magneto-optical 1010MOESI modified, owned, exclusive, shared, invalid 1011MOF maximum operating frequency 1012MOSFET metal-oxide-semiconductor field-effect transistor 1013MOSI modified, owned, shared, invalid 1014MP multi-platform 1015MP multiplayer 1016MP {multiprocessing,multiprocessor} 1017MPEG moving picture experts group 1018MPI message passing interface 1019MPLS Multiprotocol Label Switching 1020MPP massively parallel processor 1021MPS memory pool system 1022MPS multiprocessor specification 1023MQTT Message Queuing Telemetry Transport 1024MR modem ready 1025MRO method resolution order 1026MRP multiple registration protocol 1027MRU most recently used 1028MS Microsoft 1029MSAN Memory Sanitizer 1030MSB most significant {bit,byte} 1031MSC message sequence chart 1032MSE mean square error 1033MSF minutes seconds frames 1034MSI message signaled interrupt 1035MSI modified, shared, invalid 1036MSR {machine state,model-specific} register 1037MSS maximum segment size 1038MSTP Multiple Spanning Tree Protocol 1039MT machine translation 1040MTA mail transfer agent 1041MTBF mean time between failures 1042MTP media transfer protocol 1043MTRR memory type range register 1044MTTF mean time to failure 1045MTU maximum transmission unit 1046MUA mail user agent 1047MUD multi-user domain 1048MVCC multiversion concurrency control 1049MVR multicast VLAN registration 1050MVRP multiple VLAN registration protocol 1051MWE module width encoding 1052MX mail exchange 1053NACK negative acknowledgement 1054NAK negative acknowledgement 1055NAN neighbor awareness networking 1056NAN not a number 1057NAPT Network Address Port Translation 1058NAS network attached storage 1059NAT network address translation 1060NAV network allocation vector 1061NC numerical control 1062NC-SI network controller sideband interface 1063NCO numerically-controlled oscillator 1064NCP Network Control Protocol 1065NCSI network connectivity status indicator 1066NCQ native command queuing 1067ND neighbor discovery 1068NDFA nondeterministic finite automaton 1069NDIS network driver interface specification 1070NE numeric error 1071NEWS Network extensible Window System 1072NFA nondeterministic finite automaton 1073NFC near-field communication 1074NFCI no functional change intended 1075NFS network file system 1076NFV network function virtualization 1077NHACP NABU HCCA Application Communication Protocol 1078NIA next instruction address 1079NIC network information center 1080NIC network interface card 1081NIDS network intrusion detection system 1082NIP network interface protocol 1083NIPS network intrusion prevention system 1084NIS network information service 1085NIST National Institute of Standards and Technology 1086NLS native language support 1087NMI non-maskable interrupt 1088NNTP Network News Transfer Protocol 1089NMR nonce-misuse resistance 1090NOC network operations center 1091NOP no operation 1092NOS network operating system 1093NP nondeterministic polynomial time 1094NRND not recommended for new designs 1095NRZ non-return to zero 1096NSA nation-state adversary 1097NSA no such agency 1098NSA National Security Agency 1099NTM non-deterministic Turing machine 1100NTP Network Time Protocol 1101NUMA non-uniform memory access 1102NURBS non-uniform rational basis spline 1103NVMM NetBSD Virtual Machine Monitor 1104NVMM non-volatile main memory 1105NVRAM non-volatile random access memory 1106NW not write-through 1107NX no execute 1108OAEP optimal asymmetric encryption padding 1109OAM operations, administration, and {management,maintenance} 1110OBO off by one 1111OBOE off by one error 1112OCL object constraint language 1113OCR optical character recognition 1114ODE offline device environment 1115ODI open data-link interface 1116ODM object data manager 1117ODCM on-demand clock modulation 1118ODMR on-demand mail relay 1119ODT on-die termination 1120OEM original equipment manufacturer 1121OFB output feedback 1122OFDM orthogonal frequency division multiplexing 1123OFET organic field-effect transistor 1124OLAP online analytical processing 1125OLE object linking and embedding 1126OLTP online transaction processing 1127ONFI open nand flash interface 1128OO OpenOffice 1129OO object oriented 1130OOB out of band 1131OOE out of order execution 1132OOM out of memory 1133OOO OpenOffice.org 1134OOP object oriented programming 1135OOPS object oriented programming systems 1136OOSE object oriented software engineering 1137OPM operations per minute 1138OPS operations per second 1139OQL Object Query Language 1140ORB object request broker 1141ORM object-relational mapping 1142OS operating system 1143OSD object-based storage device 1144OSD open source definition 1145OSF open software foundation 1146OSI Open Source Initiative 1147OSI open systems interconnection 1148OSPF open shortest path first 1149OSPM OS power management 1150OSS open sound system 1151OSS open source software 1152OSVW operating system visible workarounds 1153OTP one time password 1154OTP open telecom platform 1155OU organizational unit 1156OUI organizationally unique identifier 1157OWASP Open Web Application Security Project 1158OWL Web Ontology Language 1159P2P PCI to PCI 1160P2P peer to peer 1161PA phase accumulator 1162PA physical address 1163PAAS platform as a service 1164PAC phase-amplitude converter 1165PAE physical address extension 1166PAGP port aggregation protocol 1167PAL phase alternating line 1168PAL programmable array logic 1169PAM pluggable authentication modules 1170PAM pulse amplitude modulation 1171PAP password authentication protocol 1172PAT page attribute table 1173PAT port address translation 1174PATA parallel ATA 1175PAX portable archive exchange 1176PBE pending break encoding 1177PBE programming by example 1178PBR partition boot record 1179PBX private branch exchange 1180PC personal computer 1181PC program counter 1182PCB printed circuit board 1183PCB process control block 1184PCB Protocol Control Block 1185PCBC propagating cipher block chaining 1186PCC Portable C Compiler 1187PCD page-level cache disable 1188PCE path computation element 1189PCE performance-monitor counter enable 1190PCEP Path Computation Element Protocol 1191PCH platform controller hub 1192PCI peripheral component interconnect 1193PCM phase change memory 1194PCM pulse code modulation 1195PCMCIA Personal Computer Memory Card International Association 1196PCP Port Control Protocol 1197PD public domain 1198PDA personal digital assistant 1199PDA pushdown automaton 1200PDAG propositional directed acyclic graph 1201PDB power distribution board 1202PDF portable document format 1203PDM pulse-duration modulation 1204PDN pull-down network 1205PDP page {descriptor,directory} page 1206PDS product data sheet 1207PDU protocol data unit 1208PE protection enable 1209PE provider edge 1210PE portable executable 1211PEAP Protected EAP 1212PECI platform environment control interface 1213PEP protocol extension protocol 1214PER packed encoding rules 1215PFS perfect forward secrecy 1216PGAS partitioned global address space 1217PGE page global enable 1218PGO profile guided optimization 1219PGP Pretty Good Privacy 1220PHB PCI host bridge 1221PHP PHP: Hypertext Preprocessor 1222PIC performance instrumentation counters 1223PIC position independent code 1224PIC programmable interrupt controller 1225PICNIC problem in chair, not in computer 1226PID process id 1227PIE position independent executable 1228PIL Priority Interrupt Level 1229PIM personal information manager 1230PIM platform-independent model 1231PIO programmed input/output 1232PIPT physically indexed, physically tagged 1233PIQ prefetch input queue 1234PIT programmable interrupt timer 1235PIV personal identity verification 1236PIX Private Internet eXchange 1237PKCS public-key cryptography standards 1238PKI public key infrastructure 1239PLC programmable logic controller 1240PLD programmable logic device 1241PLL phase locked loop 1242PLRU pseudo LRU 1243PLT procedure linkage table 1244PLTM package level thermal management 1245PM power management 1246PM {phase,pulse} modulation 1247PMC performance monitoring counters 1248PME power management event 1249PMEG page map entry group 1250PMI performance monitoring infrastructure 1251PMI platform management interrupt 1252PMIC power management integrated circuit 1253PMIO port-mapped input/output 1254PMT photo-multiplier tube 1255PMU performance monitoring units 1256PMU power management unit 1257PNG portable network graphics 1258PNP plug and play 1259POE power over ethernet 1260POF probability of failure 1261POP Post Office Protocol 1262POP power on password 1263POR plan of record 1264POSIX Portable Operating System Interface [for Unix] 1265POST power on self test 1266POTS plain old telephone system 1267POWER Performance Optimization With Enhanced RISC 1268POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1269PP pair programming 1270PPB PCI [to] PCI bridge 1271PPC PowerPC 1272PPC Power Performance Computing 1273PPI pixels per inch 1274PPM pages per minute 1275PPP Point-to-Point Protocol 1276PPPOA Point-to-Point Protocol over ATM 1277PPPOE Point-to-Point Protocol over Ethernet 1278PPR processor programming reference 1279PPT powerpoint 1280PPT punched paper tape 1281PPU physics processing unit 1282PRAM Parameter RAM 1283PRBS pseudorandom bit sequence 1284PRG pseudorandom generator 1285PRF pseudorandom function [family] 1286PRML partial response, maximum likelihood 1287PRN pseudorandom {noise,number} 1288PRNG pseudorandom number generator 1289PROM programmable read only memory 1290PRP pseudorandom permutation 1291PRU Programmable Realtime Unit 1292PS PostScript 1293PSD power spectral density 1294PSE page size extensions 1295PSK phase shift keying 1296PSK pre-shared key 1297PSTN public switched telephone network 1298PSW program status word 1299PTE page table entry 1300PTLA pseudo top level aggregator 1301PTP page table page 1302PTV perceived target value 1303PU processing unit 1304PUC personal unblocking code 1305PUN physical unit number 1306PV physical volume 1307PVC permanent virtual circuit 1308PVG physical volume group 1309PVI protected-mode virtual interrupt 1310PVRST Per-VLAN rapid spanning tree 1311PVST Per-VLAN Spanning Tree 1312PWM pulse width modulation 1313PXE preboot execution environment 1314QA quality assurance 1315QAM quadrature amplitude modulation 1316QAM quality assurance management 1317QBE query by example 1318QC quality control 1319QDI quasi delay insensitive 1320QCIF quarter common intermediate format 1321QOI quality of implementation 1322QOI quick order interface 1323QOS quality of service 1324QVL qualified vendor list 1325R/O read only 1326R/W read/write 1327RA receiver address 1328RA remote assistance 1329RA resource affinity 1330RA router advertisement 1331RAD rapid application development 1332RADIUS remote authentication dial-in user service 1333RAID redundant array of {independent,inexpensive} disks 1334RAII resource acquisition is initialization 1335RAM random access memory 1336RAS reliability, availability and serviceability 1337RAS remote access service 1338RAS restartable atomic sequence 1339RAS row address strobe 1340RBF radial basis function 1341RBNF routing backus-naur form 1342RBT red-black tree 1343RC release candidate 1344RC remote control 1345RC run commands 1346RCS Revision Control System 1347RCU read, copy, update 1348RDB Rigid Disk Block 1349RDBMS relational database management system 1350RDF Resource Description Framework 1351RDM relational data model 1352RDMA remote direct memory access 1353RDP remote desktop protocol 1354RDRAM Rambus DRAM 1355RE regular expression 1356REPL read, evaluate, print, loop 1357REST representational state transfer 1358RF radio frequency 1359RFB remote frame buffer 1360RFI radio frequency interference 1361RFO request for ownership 1362RFU reserved for future use 1363RGB red green blue 1364RGBA red green blue alpha 1365RGMII reduced gigabit media independent interface 1366RH read hit 1367RHEL Red Hat Enterprise Linux 1368RHL Red Hat Linux 1369RIB routing information base 1370RIFF Resource Interchange File Format 1371RIP Raster Image Processor 1372RIP Routing Information Protocol 1373RIR regional Internet registry 1374RISC reduced instruction set {computer,computing} 1375RKM ROM Kernel Manual 1376RLE run length encoding 1377RLL run length limited 1378RLO right-to-left override 1379RM read miss 1380RMCP Remote Management Control Protocol 1381RMI remote method invocation 1382RMO Relaxed Memory Ordering 1383RMPM rapid memory power management 1384RMS root mean square 1385RMW read, modify, write 1386RNG random number generator 1387ROM read only memory 1388ROP return-oriented programming 1389RPC remote procedure call 1390RPG Report Program Generator 1391RPKI resource PKI 1392RPL requested privilege level 1393RPM revolutions per minute 1394RPN reverse Polish notation 1395RPVST Rapid Per-VLAN Spanning Tree 1396RR random replacement 1397RR round robin 1398RS relay station 1399RSA Rivest, Shamir, [and] Adleman 1400RSIP Realm Specific IP 1401RSN Robust Secure Network 1402RSS really simple syndication 1403RSS Receive Side Scaling 1404RSS residual sum of squares 1405RSTP Rapid Spanning Tree Protocol 1406RT real time 1407RTC real time clock 1408RTC real time computing 1409RTF rich text format 1410RTL register transfer language 1411RTL resistor-transistor logic 1412RTL right to left 1413RTOS real time operating system 1414RTP Real-time Transport Protocol 1415RTS request to send 1416RTT round trip time 1417RTTI run-time type information 1418RUP rational unified process 1419RW Rabin-Williams 1420RWM read-write memory 1421RX {receive,receiver} 1422S/PDIF Sony/Philips Digital Interface Format 1423SA security advisory 1424SA security association 1425SA source address 1426SA structured analysis 1427SAAS software as a service 1428SABRE Semi-automated business research environment 1429SACD super audio compact disc 1430SAD security association database 1431SAF-TE SCSI accessed fault-tolerant enclosure 1432SAGE Semi-automated ground environment 1433SAL {service,system} abstraction layer 1434SAM serial access memory 1435SAM sum addressed memory 1436SAML security assertion markup language 1437SAN storage area network 1438SAP service access point 1439SAPIC streamlined advanced programmable interrupt controller 1440SASD structured analysis, structured design 1441SASI Shugart Associates System Interface 1442SASL simple authentication [and] security layer 1443SATA serial advanced technology attachment 1444SAX simple API for XML 1445SB sound blaster 1446SBSA server base system architecture 1447SBU standard build unit 1448SC store conditional 1449SCA source code analyzer 1450SCADA supervisory control and data acquisition 1451SCC single chip cloud 1452SCC source code control 1453SCCP skinny call control protocol 1454SCCS Source Code Control System 1455SCI scalable coherent interface 1456SCI system control interrupt 1457SCIM smart common input method 1458SCM software configuration management 1459SCM source code management 1460SCM storage-class memory 1461SCO synchronous connection orientated 1462SCP secure copy 1463SCP system control processor 1464SCPI system control and power interface 1465SCSI Small Computer System Interface 1466SCTP Stream Control Transmission Protocol 1467SDDC software defined data center 1468SDEI software delegated exception interface 1469SDI symbol deinterleave 1470SDK software development kit 1471SDL Simple Declarative Language 1472SDL Simple Direct-media Layer 1473SDLC {software,system,systems} development life cycle 1474SDN software defined networking 1475SDP Session Description Protocol 1476SDR software defined radio 1477SDRAM synchronous dynamic random access memory 1478SDS software defined storage 1479SDT syntax-directed translation 1480SEA synchronous external abort 1481SEGV segmentation violation 1482SED self-encrypting drive 1483SED stream editor 1484SEMB serial ATA enclosure management bridge 1485SEO search engine optimization 1486SES SCSI enclosure services 1487SFC sequential function chart 1488SFI simple firmware interface 1489SFI software fault isolation 1490SFTP SSH File Transfer Protocol 1491SFTP Serial File Transfer Protocol 1492SFTP Simple File Transfer Protocol 1493SGI Silicon Graphics, Inc 1494SGI software generated interrupt 1495SGMII serial gigabit media independent interface 1496SGPIO serial general purpose input/output 1497SGRAM synchronous graphics random access memory 1498SHA secure hash algorithm 1499SICP structure and interpretation of computer programs 1500SIDH supersingular isogeny Diffie-Hellman 1501SIEM security information and event management 1502SIF source input format 1503SIFS short inter-frame space 1504SIM subscriber identity module 1505SIMD single instruction, multiple data 1506SIMM single inline memory module 1507SIP Session Initiation Protocol 1508SIR signal-to-interference ratio 1509SIR slow infrared 1510SISD single instruction, single data 1511SIV synthetic intialization vector 1512SLAAC stateless address auto-configuration 1513SLC single-level cell 1514SLDRAM synchronous-link dynamic random access memory 1515SLED single large expensive disk 1516SLI scalable link interface 1517SLI scan-line interleave 1518SLIC system license internal code 1519SLOC source lines of code 1520SLRU segmented LRU 1521SMA smart memory access 1522SMAF system management action field 1523SMAP Simple Mail Access Protocol 1524SMAP supervisor mode access prevention 1525SMART self-monitoring analysis and reporting technology 1526SMB Server Message Block 1527SMB system management bus 1528SMBIOS System Management BIOS 1529SMC system management controller 1530SMD storage module device 1531SMEP supervisor mode execution protection 1532SMF single mode fiber 1533SMI structure of management information 1534SMI system management interrupt 1535SMM system management mode 1536SMP serial management protocol 1537SMP symmetric multiprocessing 1538SMR shingled magnetic recording 1539SMR state machine replication 1540SMT simultaneous multithreading 1541SMTP Simple Mail Transfer Protocol 1542SMU system management unit 1543SNA systems network architecture 1544SNAP Sub-Network Access Protocol 1545SNIA Storage Networking Industry Association 1546SNMP Simple Network Management Protocol 1547SNR signal-to-noise ratio 1548SOA service oriented architecture 1549SOAP Simple Object Access Protocol 1550SOC system on chip 1551SOF start of frame 1552SOH start of header 1553SOHO small office/home office 1554SOL serial over LAN 1555SOM system on module 1556SP service pack 1557SP stack pointer 1558SPA storage pool allocator 1559SPAN switched port analyzer 1560SPARC scalable processor architecture 1561SPARQL SPARQL Protocol and RDF Query Language 1562SPD security policy database 1563SPD serial presence detect 1564SPDIF Sony/Philips digital interface format 1565SPI serial peripheral interface 1566SPI stateful packet inspection 1567SPL system interrupt priority level 1568SPL spinlock 1569SPMD single process, multiple data 1570SPR special purpose register 1571SPT sectors per track 1572SQA software quality assurance 1573SQCIF sub quarter common intermediate format 1574SQL Structured Query Language 1575SRAM static random access memory 1576SRC sample rate conversion 1577SRP SCSI RDMA protocol 1578SRR shaped round robin 1579SRTP Secure Real-time Transport Protocol 1580SS self-snoop 1581SS stack segment 1582SSA static single assignment 1583SSAP source service access point 1584SSB single-sideband modulation 1585SSC spread spectrum clock 1586SSD solid state drive 1587SSE streaming SIMD extensions 1588SSFDC solid state floppy disc card 1589SSH secure shell 1590SSI server side includes 1591SSID service set identifier 1592SSTP secure socket tunneling protocol 1593SSL secure sockets layer 1594SSP stack smashing protection 1595STC software thermal control 1596STD state transition diagram 1597STM software transactional memory 1598STOMP Streaming Text Oriented Messaging Protocol 1599STP Spanning Tree Protocol 1600STP shielded twisted pair 1601STRG spanning tree root guard 1602SUN Stanford University Network 1603SUS Single Unix Specification 1604SUT system under test 1605SVC switched virtual circuit 1606SVG scalable vector graphics 1607SVGA Super Video Graphics Array 1608SVI {switch,switched} virtual interface 1609SVM secure virtual machine 1610SVM support vector machine 1611SVR System V Release 1612SVS Separate Virtual Space 1613SWF Shockwave Flash 1614SWIG simplified wrapper [and] interface generator 1615SYR symbol timing recovery 1616TA test assertion 1617TA transmitter address 1618TACACS terminal access controller access-control system 1619TAI international atomic time 1620TAO track at once 1621TAOCP The Art of Computer Programming 1622TAP Test Anything Protocol 1623TAS test and set 1624TB terabyte 1625TBNF transitional backus-naur form 1626TCB trace capture buffer 1627TCB trusted computing base 1628TCC thermal control circuit 1629TCL tool command language 1630TCP Transmission Control Protocol 1631TCQ tagged command queueing 1632TDC time [to] digital converter 1633TDD test-driven development 1634TDD time division duplex 1635TDM time division multiplexing 1636TDMA time division multiple access 1637TDOA time difference of arrival 1638TDP thermal design {point,power} 1639TDR time-domain reflectometry 1640TECO Text Editor and Corrector 1641TEE Trusted Execution Environment 1642TFT thin film transistor 1643TFTP Trivial File Transfer Protocol 1644TIAS try it and see 1645TIFF tagged image file format 1646TITS try it to see 1647TK temporal key 1648TKIP Temporal Key Integrity Protocol 1649TLA top level aggregator 1650TLB translation lookaside buffer 1651TLD top level domain 1652TLER time-limited error recovery 1653TLI transport layer interface 1654TLS thread local storage 1655TLS transport layer security 1656TM Turing machine 1657TM thermal monitor 1658TMG transmogrifier 1659TMDS transition minimized differential signaling 1660TMO timeout 1661TOD time of day 1662TOE TCP offload engine 1663TOFU trust on first use 1664TOS terms of service 1665TOS trusted operating system 1666TOS type of service 1667TOTP time-based one time password 1668TP transaction processing 1669TPI tracks per inch 1670TPM transactions per minute 1671TPM trusted platform module 1672TPR task priority register 1673TPS transactions per second 1674TPS transmission parameters signaling 1675TR task register 1676TR token ring 1677TRL timing recovery loop 1678TRNG true random number generator 1679TS terminal services 1680TS time series 1681TS time stamp 1682TS transport stream 1683TSAN Thread Sanitizer 1684TSC time stamp counter 1685TSD time stamp disable 1686TSDB time series database 1687TSL test, set, lock 1688TSO time sharing option 1689TSO TCP segmentation offload 1690TSO Total Store Ordering 1691TSP Time-Stamp Protocol 1692TSP Tunnel Setup Protocol 1693TSP time synchronization protocol 1694TSP traveling salesman problem 1695TSS task state segment 1696TSV tab-separated values 1697TTL time to live 1698TTL transistor-transistor logic 1699TTM translation table maps 1700TTY teletype 1701TU translation unit 1702TUI {terminal,text-based,textual} user interface 1703TX {transmit out,transmitter} 1704TXG transaction group 1705TZ time zone 1706UAC user {access,account} control 1707UAF use-after-free 1708UART universal asynchronous receiver/transmitter 1709UAT user acceptance testing 1710UB undefined behavior 1711UBSAN Undefined Behavior Sanitizer 1712UC uncacheable 1713UCS uniform-cost search 1714UCS unified computing system 1715UCS universal coded character set 1716UDI uniform driver interface 1717UDMA ultra DMA 1718UDO ultra density optical 1719UDP User Datagram Protocol 1720UEFI unified extensible firmware interface 1721UFO UDP fragmentation offload 1722UFS Unix File System 1723UGA universal graphics adapter 1724UI unit interval 1725UI user interface 1726UICC universal integrated circuit card 1727UID unique identifier 1728UID user identifier 1729UL upload 1730UMA uniform memory access 1731UMA upper memory area 1732UMB upper memory block 1733UML unified modeling language 1734UMPC ultra-mobile PC 1735UPNP universal plug and play 1736UPS uninterruptible power supply 1737URI uniform resource identifier 1738URL uniform resource locator 1739URN uniform resource name 1740USART universal synchronous/asynchronous receiver/transmitter 1741USB universal serial bus 1742USWC uncacheable speculative write combining 1743UT unit test 1744UTC coordinated universal time 1745UTF unicode transformation formats 1746UTP unshielded twisted pair 1747UTS UNIX time-sharing 1748UUCP Unix-to-Unix Copy Protocol 1749UUID universally unique identifier 1750UUOC useless use of cat 1751UUT unit under test 1752UX user experience 1753VA vertical alignment 1754VA virtual address 1755VA volt-ampere 1756VAX virtual address extension 1757VB Visual Basic 1758VBR volume boot record 1759VCA variable-gain amplifier 1760VCC common collector voltage 1761VCCP virtual chassis control protocol 1762VCF voltage-controlled filter 1763VCM virtual channel memory 1764VCO voltage-controlled oscillator 1765VCP virtual chassis port 1766VCS version control system 1767VDPAU Video Decode and Presentation API for Unix 1768VES virtual execution system 1769VESA Video Electronics Standards Association 1770VFO variable-frequency oscillator 1771VFS virtual file system 1772VG volume group 1773VGA Video Graphics Array 1774VHDCI very high density cable interconnect 1775VID {VLAN,voltage level} identifier 1776VIM Vi IMproved 1777VIPT virtually indexed, physically tagged 1778VIVT virtually indexed, virtually tagged 1779VLAN virtual local area network 1780VLD variable-length decoding 1781VLIW very long instruction word 1782VLSI very large scale integration 1783VLSM variable length subnet mask 1784VM virtual {machine,memory} 1785VME virtual mode extension 1786VMX vector multimedia extensions 1787VMX virtual machine extensions 1788VNC virtual network computing 1789VOD video on demand 1790VPD vital product data 1791VPN virtual private network 1792VPWS virtual private wire service 1793VR virtual reality 1794VRAM video random access memory 1795VRF virtual routing and forwarding 1796VRM voltage regulator module 1797VROC Virtual RAID On CPU 1798VRRP Virtual Router Redundancy Protocol 1799VSTP VLAN Spanning Tree Protocol 1800VTP VLAN Trunking Protocol 1801VXFS Veritas file system 1802VXVM Veritas volume manager 1803W watt 1804W3C World Wide Web Consortium 1805WAFL write anywhere file layout 1806WAMP Web Application Messaging Protocol 1807WAN wide area network 1808WAP Wireless Application Protocol 1809WAP wireless access point 1810WDM Windows Driver Model 1811WDDM Windows Display Driver Model 1812WDT watchdog timer 1813WEP Wired Equivalent Privacy 1814WFI wait for interrupt 1815WFQ weighted fair queuing 1816WH write hit 1817WHEA Windows hardware error architecture 1818WIFI wireless fidelity 1819WLAN wireless local area network 1820WM write miss 1821WMF Windows meta file 1822WMI Windows Management Instrumentation 1823WOL Wake-on-LAN 1824WOM Wake-on-Modem 1825WOR Wake-on-Ring 1826WORM write once read many 1827WP WordPerfect 1828WP word processor 1829WP write protect 1830WPA Wi-Fi Protected Access 1831WPA2 Wi-Fi Protected Access II 1832WPAD web proxy auto-discovery protocol 1833WPS Wi-Fi Protected Setup 1834WRAM window random access memory 1835WS web services 1836WTC write through caching 1837WTD weighted tail drop 1838WWAN wireless wide area network 1839WWW world wide web 1840WYSIAYG what you see is all you get 1841WYSIWYG what you see is what you get 1842XBAR crossbar 1843XDMCP X Display Manager control protocol 1844XER XML encoding rules 1845XGA Extended Graphics Array 1846XHR XMLHttpRequest 1847XIP execute in place 1848XML Extensible Markup Language 1849XNA XNA's not acronymed 1850XNS Xerox network systems 1851XOR exclusive or 1852XP extreme programming 1853XSI X/Open System Interface 1854XSL extensible stylesheet language 1855XSLT extensible stylesheet language transformations 1856XSS cross site scripting 1857XT extended technology 1858XTACACS extended terminal access controller access-control system 1859XTI X/Open transport interface 1860XUL XML user interface language 1861YACC yet another compiler compiler 1862YAML YAML ain't markup language 1863YANG yet another next generation 1864YAWPFAPR you are welcome; please file a problem report 1865YP Yellow Pages 1866YTD year to date 1867ZAP ZFS attribute processor 1868ZBR zone bit recording 1869ZFOD zero-filled on demand 1870ZFS zettabyte file system 1871ZIF zero insertion force 1872ZIFS zero insertion force socket 1873ZIL ZFS intent log 1874ZMA zone multicast address 1875ZOI zero one infinity 1876ZOI zone of influence 1877ZPL ZFS Posix layer 1878ZVOL ZFS Volume 1879