acronyms.comp revision 1.313
1$NetBSD: acronyms.comp,v 1.313 2020/10/04 19:04:48 nia Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABI application binary interface 8ABNF augmented backus-naur form 9ABR available bit rate 10ABRT automatic bug reporting tool 11AC alternating current 12ACI adjacent channel interferer 13ACID atomicity, consistency, isolation, durability 14ACK Amsterdam compiler kit 15ACK acknowledgement 16ACL access control list 17ACL active current loop 18ACL asynchronous connection less 19ACP auxiliary control {process,program} 20ACPI advanced configuration and power interface 21ACS access control set 22ACU automatic calling unit 23ADB Apple desktop bus 24ADC analog [to] digital converter 25ADD acronym driven development 26ADDDC adaptive double DRAM device correction 27ADO active data objects 28ADP automatic data processing 29ADPCM adaptive differential pulse code modulation 30ADS alternate data stream 31ADSL asymmetric digital subscriber line 32ADT abstract data type 33AEDC advanced error detection and correction 34AER advanced error reporting 35AES Advanced Encryption Standard 36AFP Apple Filing Protocol 37AFS Andrew File System 38AGC automatic gain control 39AGP accelerated graphics port 40AI analog input 41AI artificial intelligence 42AL access list 43AL active link 44ALE address latch enable 45ALS ambient light sensor 46ALSA advanced Linux sound architecture 47ALU arithmetic and logical unit 48ALUA asymmetric logical unit access 49AM access method 50AM alignment mask 51AM amplitude modulation 52AMD Advanced Micro Devices Inc 53AMDD Agile model-driven development 54AMI alternate mark inversion 55AMP asymmetric multiprocessing 56AMQP advanced message queuing protocol 57AMT active management technology 58AN Arabic number 59ANR application not responding 60ANSI American National Standards Institute 61AO analog output 62AOC add-on card 63AOL Alert-on-LAN 64AOS add or subtract 65AP access point 66AP application processor 67APFS Apple file system 68API application programming interface 69APEI ACPI platform error interface 70APIC advanced programmable interrupt controller 71APIPA automatic private IP addressing 72APM advanced power management 73APM application performance management 74APU accelerated processing unit 75APT advanced persistent threat 76AQM active queue management 77ARAT always running APIC timer 78ARC adaptive replacement cache 79ARC Advanced RISC Computing 80ARC automatic reference counting 81ARM Advanced RISC Machines 82ARP Address Resolution Protocol 83ARPA Advanced Research Projects Agency 84ARQ automatic repeat request 85ARR address range register 86ARU audio response unit 87AS autonomous system 88ASA Adaptive Security Appliance 89ASAN Address Sanitizer 90ASC advanced smart cache 91ASCII American Standard Code for Information Interchange 92ASD agile software development 93ASE advanced software environment 94ASF alert standard format 95ASIC application-specific integrated circuit 96ASK amplitude shift keying 97ASLR address space layout randomization 98ASN autonomous system number 99ASP active server pages 100ASP auxiliary storage pool 101ASPM active state power management 102ASQ automated software quality 103ASR address space register 104ASR Apple software restore 105AST abstract syntax tree 106AST asynchronous system trap 107AT access time 108AT advanced technology 109ATA advanced technology attachment 110ATAPI advanced technology attachment packet interface 111ATC address translation cache 112ATF ARM trusted firmware 113ATF automated testing framework 114ATM asynchronous transfer mode 115ATX advanced technology extended 116AV anti virus 117AVB audio video bridging 118AVL Adelson-Velsky-Landis 119AVX advanced vector extensions 120AWDL Apple wireless direct link 121BA byte align 122BAL basic assembly language 123BAR base address register 124BBS bulletin board system 125BCC blind carbon copy 126BCD binary coded decimal 127BCH boot console handler 128BCR byte count register 129BCS base configuration space 130BD baud 131BDD binary decision diagram 132BDI bit deinterleave 133BDUF big design up front 134BEDO burst extended data output 135BER basic encoding rules 136BER bit error {rate,ratio} 137BERT boot error record table 138BFD bidirectional forwarding detection 139BFD binary {file,format} descriptor 140BFKL big fscking kernel lock 141BFS breadth-first search 142BFT binary file transfer 143BGA ball grid array 144BGP Border Gateway Protocol 145BGPSEC BGP Security 146BIND Berkeley Internet Name Daemon 147BIOS Basic Input/Output System 148BIOS built-in operating system 149BIST built-in self-test 150BIU bus interface unit 151BKDG BIOS and kernel developer's guide 152BLAS basic linear algebra subprograms 153BLC back light control 154BLE Bluetooth low energy 155BLOB binary large object 156BM bus master 157BMC baseboard management controller 158BMP basic multilingual plane 159BMP bitmap image file 160BMIC bus master interface controller 161BN boundary neutral 162BNF Backus-Naur form 163BO binary output 164BOF beginning of file 165BOM beginning of message 166BOM byte order mark 167BP base pointer 168BP boot processor 169BPB BIOS parameter block 170BPDU bridge protocol data unit 171BPF Berkeley Packet Filter 172BPI bits per inch 173BPM business process modelling 174BPS bits per second 175BPSK binary phase shift keying 176BQS Berkeley quality software 177BRE basic regular expression 178BS backspace 179BS binary sequence 180BSA basic service area 181BSD Berkeley Software Distribution 182BSDP Boot Service Discovery Protocol 183BSF bit scan forward 184BSOD blue screen of death 185BSP binary space partition 186BSP board support package 187BSP bootstrap processor 188BSR bit scan reverse 189BSS basic service set 190BSS block started by symbol 191BSSID basic service set identifier 192BT BitTorrent 193BT Bluetooth 194BT bit test 195BTC bit test [and] complement 196BTM bus transport mechanism 197BTR bit test [and] reset 198BTS bit test [and] set 199BTS bug tracking system 200BW bandwidth 201BWM block-write mode 202BUAG big ugly ASCII graphic 203CA certificate authority 204CACLS change access control lists 205CAD computer-aided design 206CAM computer assisted manufacturing 207CAM conditional access module 208CAM content addressable memory 209CARP Common Address Redundancy Protocol 210CAS column address strobe 211CAS compare and swap 212CAS computer algebra system 213CASE computer aided software engineering 214CAU control access unit 215CAV constant angular velocity 216CBC cipher block chaining 217CBR constant bit rate 218CC carbon copy 219CCC Chaos Computer Club 220CCD charge coupled device 221CCI co-channel interferer 222CCNUMA cache-coherent non-uniform memory access 223CCTL command completion time limit 224CD cache disable 225CD compact disc 226CDDA compact disc digital audio 227CDL compiler description language 228CDMA code division multiple access 229CDN content delivery network 230CDP Cisco Discovery Protocol 231CDRAM cache dynamic random access memory 232CER canonical encoding rules 233CE customer edge 234CF compact flash 235CFB cipher feedback 236CFG context-free grammar 237CFG control-flow graph 238CFI control-flow integrity sanitizer 239CG control gate 240CGA Color Graphics Adapter 241CGI common gateway interface 242CGN Carrier-Grade NAT 243CHAP Challenge-Handshake Authentication Protocol 244CHFS chip file system 245CHS cylinder/head/sector 246CI continuous integration 247CI {common,component} interface 248CIA confidentiality, integrity, availability 249CIDR Classless Inter-Domain Routing 250CIF common intermediate format 251CIFS Common Internet File System 252CIL common intermediate language 253CIR carrier-to-interference ratio 254CIS contact image sensor 255CISC complex instruction set {computer,computing} 256CJK Chinese, Japanese, [and] Korean 257CLF common log format 258CLI command line interface 259CLI common language infrastructure 260CLR common language runtime 261CLS common language specification 262CLTT closed loop thermal throttling 263CLUT color look-up table 264CLV constant linear velocity 265CM configuration management 266CMA concert multithread architecture 267CMC chassis management controller 268CMC corrected machine check 269CMS {configuration,content,course} management system 270CMI control {management,method} interface 271CMOS complementary metal-oxide-semiconductor 272CMP chip multi-processing 273CMS content management system 274CMYK cyan magenta yellow black 275CN {common,canonical} name 276CNC computer numerical control 277CNR carrier-to-noise ratio 278COA change of authority 279COF current operating frequency 280COFDM coded orthogonal frequency division multiplexing 281COFF common object file format 282COM component object model 283COM computer on module 284COMA cache-only memory architecture 285CORBA common object request broker architecture 286COS class of service 287COW copy-on-write 288CP continuous pilot 289CPA chosen-plaintext attack 290CPB core performance boost 291CPC central processor complex 292CPC cpu performance counters 293CPE common phase error 294CPE common platform enumeration 295CPER common platform error record 296CPG clock pulse generator 297CPI cycles per instruction 298CPL current privilege level 299CPLD complex programmable logic device 300CPP C preprocessor 301CPS characters per second 302CPS continuation-passing style 303CPT command pass through 304CPU central processing unit 305CR carriage return 306CRC cyclic redundancy check 307CRL carrier recovery loop 308CRLF carriage return line feed 309CSU C start up 310CRT cathode ray tube 311CRTP curiously recurring template pattern 312CRUD create, read, update, and delete 313CS cable select 314CS chip select 315CS code segment 316CS computer science 317CSDL {common,conceptual} schema definition language 318CSI channel state information 319CSI common system interface 320CSMA carrier sense multiple access 321CSMA/CA carrier sense multiple access with collision avoidance 322CSMA/CD carrier sense multiple access with collision detection 323CSP communicating sequential processes 324CSP content security policy 325CSP constrain satisfaction problems 326CSP cryptographic service provider 327CSR control [and] status registers 328CSRG Computer Systems Research Group 329CSS cascading style sheets 330CST common spanning tree 331CSV comma-separated values 332CTF compact c type format 333CTM close to metal 334CTR counter [mode] 335CTS clear to send 336CTS common type system 337CUA common user access 338CUT coordinated universal time 339CV control voltage 340CVE common vulnerabilities and exposures 341CVS Concurrent Versions System 342DA destination address 343DAA distributed application architecture 344DAAP digital audio access protocol 345DAB digital audio broadcasting 346DAC digital [to] analog converter 347DAC discretionary access control 348DAD duplicate address detection 349DANE DNS-based Authentication of Named Entities 350DAO disk at once 351DAP Directory Access Protocol 352DAT digital audio tape 353DAT dynamic acceleration technology 354DB database 355DBA database administrator 356DBA dynamic bandwidth allocation 357DBB data bus buffer 358DBC design by contract 359DBL dynamic buffer limiting 360DBMS database management system 361DBS database server 362DC data center 363DC direct current 364DCC Direct Client-to-Client 365DCC direct cable connect 366DCD data carrier detect 367DCE data control equipment 368DCE distributed computing environment 369DCIM data center infrastructure management 370DCIM digital camera images 371DCL Digital Command Language 372DCOM distributed component object model 373DCOP Desktop COmmunication Protocol 374DCS data collection systems 375DCT discrete cosine transform 376DCU data cache unit 377DDC display data channel 378DDE dynamic data exchange 379DDI device drivers interface 380DDK device driver kit 381DDL data description language 382DDR double data rate 383DDS direct digital sound 384DDWG Digital Display Working Group 385DE debugging extensions 386DE desktop environment 387DEA data encryption algorithm 388DEC Digital Equipment Corporation 389DEK data encryption key 390DEP data execution prevention 391DER distinguished encoding rules 392DES Data Encryption Standard 393DF don't fragment 394DFA deterministic finite automaton 395DFC data flow control 396DFS depth first search 397DFS distributed file system 398DFSAN Data Flow Sanitizer 399DFT diagnostic function test 400DFT discrete Fourier transform 401DGL data generation language 402DGEMM double precision general matrix multiply 403DH Diffie-Hellman 404DHCP Dynamic Host Configuration Protocol 405DIA dedicated Internet access 406DIB device independent bitmap 407DIFS distributed inter-frame space 408DIMM dual inline memory module 409DIRT design in real time 410DKI driver/kernel interface 411DL diode logic 412DL discrete logarithm 413DL download 414DLCI data link connection identifier 415DLE data link escape 416DLL dynamic link library 417DLNA digital living network alliance 418DLP discrete logarithm problem 419DMA direct memory access 420DMI desktop management interface 421DMS document management system 422DMT discrete multitone modulation 423DMU data management layer 424DNARD Digital network appliance reference design 425DND drag and drop 426DNLC directory name lookup cache 427DNS Domain Name System 428DNSSEC DNS Security Extensions 429DOE distributed object environment 430DOF data over fibre 431DOM document object model 432DOS denial of service 433DOS disk operating system 434DP DisplayPort 435DPC deferred procedure call 436DPCM differential pulse code modulation 437DPD dead peer detection 438DPI deep packet inspection 439DPI dots per inch 440DPL descriptor privilege level 441DPS Display PostScript 442DPST display power savings technology 443DRAAS disaster recovery as a service 444DRAM dynamic random access memory 445DRBG deterministic random bit generator 446DRI direct rendering infrastructure 447DRM digital rights management 448DRRS display refresh rate switching 449DS debug store 450DS differentiated services 451DS9000 DeathStation 9000 452DS9K DeathStation 9000 453DSA digital signature algorithm 454DSAP destination service access point 455DSB double-sideband modulation 456DSCP differentiated services code point 457DSDT differentiated system descriptor table 458DSF device special file 459DSL dataset and snapshot layer 460DSL digital subscriber line 461DSL domain specific language 462DSLAM digital subscriber line access multiplexer 463DSN delivery status notification 464DSO dynamic shared object 465DSP digital signal processor 466DSSS direct sequence spread spectrum 467DTB device tree blob 468DTC device tree compiler 469DTD document type definition 470DTE data terminal equipment 471DTE dumb terminal emulator 472DTL diode-transistor logic 473DTLS datagram transport layer security 474DTS device tree source 475DTS digital thermal sensor 476DUT device under test 477DVB digital video broadcasting 478DVCS distributed version control system 479DVD digital versatile disc 480DVFS dynamic voltage and frequency scaling 481DVI device independent 482DVI Digital Visual Interface 483DVR digital video recorder 484E-XER extended XML encoding rules 485EABI embedded-application binary interface 486EAI Email Address Internationalization 487EAI Enterprise Application Integration 488EAP Extensible Authentication Protocol 489EAPOL EAP over Lan 490EAV entity-attribute-value model 491EAV ethernet audio/video bridging 492EBCDIC Extended Binary Coded Decimal Interchange Code 493EBDA Extended BIOS Data Area 494EBNF extended backus-naur form 495EBR extended boot record 496EC elliptic curve 497ECC elliptic curve cryptography 498ECC error correction code 499ECDH elliptic curve Diffie-Hellman 500ECDL elliptic curve discrete logarithm 501ECDLP elliptic curve discrete logarithm problem 502ECDSA elliptic curve digital signature algorithm 503ECL emitter-coupled logic 504ECN explicit congestion notification 505ECP enhanced capability port 506ECS enhanced chip set 507ECS extended configuration space 508EDAC error detection and correction 509EDAT enhanced dynamic acceleration technology 510EdDSA Edwards curve digital signature algorithm 511EDGE explicit data graph execution 512EDID extended display identification data 513EDO extended data out 514EDS electronical data sheet 515EDSAC electronic delay storage automatic calculator 516EDVAC electronic discrete variable automatic computer 517EEE energy efficient ethernet 518EEPROM electrically erasable programmable read only memory 519EFI extensible firmware interface 520EFL emitter follower logic 521EFM eight to fourteen modulation 522EFS extent file system 523EGA Enhanced Graphics Adapter 524EGP exterior gateway protocol 525EH extension header 526EIDE enhanced IDE 527EISA extended industry standard architecture 528EINJ error injection table 529ELF executable and linking format 530ELS entry level system 531EMI electro-magnetic interference 532EMP electro-magnetic pulse 533EMR electro-magnetic radiation 534EMACS Editor MACroS 535ENIAC electronic numerical integrator and computer 536EOF end of file 537EOI end of interrupt 538EOIS end of interactive support 539EOL end of life 540EOL end of line 541EOT end of transmission 542EPIC explicitly parallel instruction computing 543EPP enhanced parallel port 544EPRML extended partial response, maximum likelihood 545EPROM erasable programmable read only memory 546EPT extended page tables 547ERC error recovery control 548ERD emergency recovery disk 549ERD entity relationship diagram 550ERE extended regular expression 551ERST error record serialization table 552ESAN Efficiency Sanitizer 553ESB enterprise service bus 554ESDI enhanced small disk interface 555ESDRAM enhanced synchronous dynamic random access memory 556ESI enclosure services interface 557ESS electronic switching system 558ESS extended service set 559ESSID extended service set identifier 560EST enhanced speedstep 561ETL extract, transform, load 562EU execution unit 563EULA end user license agreement 564FAT file allocation table 565FBRAM frame buffer random access memory 566FCIF full common intermediate format 567FCL fiber channel loop 568FCS frame check sequence 569FDC floppy disk controller 570FDD floppy disk drive 571FDDI fiber distributed data interface 572FDE full disk encryption 573FDT flattened device tree 574FEA finite element analysis 575FEC forward error correction 576FET field-effect transistor 577FF finite field 578FF form feed 579FFDH finite-field Diffie-Hellman 580FFH functional fixed hardware 581FFI foreign function interface 582FFM focus follows mouse 583FFS Fast File System 584FFS find first set 585FFT fast Fourier transform 586FG floating gate 587FHRP first hop redundancy protocol 588FHSS frequency hop spread spectrum 589FID frequency identifier 590FIFO first in, first out 591FILO first in, last out 592FIPS Federal Information Processing Standards 593FIR fast infrared 594FLOPS floating [point] operations per second 595FLOSS free/libre/open source software 596FM frequency modulation 597FMR false match rate 598FOSS free/open source software 599FPGA field programmable gate array 600FPM fast page mode 601FPR floating point register 602FPU floating point unit 603FQDN fully qualified domain name 604FRR false rejection rate 605FRU field replaceable unit 606FS file system 607FSB front side bus 608FSCK file system check 609FSF Free Software Foundation 610FSK frequency shift keying 611FSM finite-state machine 612FTA fault tree analysis 613FTL flash translation layer 614FTP File Transfer Protocol 615FTPS File Transfer Protocol Secure 616FTTH fiber to the home 617FUS fast user switching 618FWH firmware hub 619FWS folding white space 620GAL generic array logic 621GARP generic attribute registration protocol 622GAS generic address structure 623GC garbage collector 624GCM Galois counter mode 625GCR group-coded recording 626GDI Graphics Device Interface 627GDT global descriptor table 628GECOS general comprehensive operating supervisor 629GEM graphics environment manager 630GEM graphics execution manager 631GEMM general matrix multiply 632GENA general event notification architecture 633GHC Glasgow Haskell compiler 634GHES generic hardware error source 635GIC generic interrupt controller 636GID group identifier 637GIF graphics interchange format 638GLBP gateway load balancing protocol 639GMCH graphics and memory controller hub 640GNU GNU's Not Unix 641GOP graphics output protocol 642GOT global offset table 643GPE general purpose event 644GPF general protection fault 645GPG GNU Privacy Guard 646GPL [GNU] General Public License 647GPR general purpose register 648GPS generalized processor sharing 649GPT GUID partition table 650GPU graphics processing unit 651GR golden ratio 652GRE generic routing encapsulation 653GSI global system interrupt 654GUI graphical user interface 655GUID globally unique identifier 656GVFS git virtual file system 657HA high availability 658HAL hardware abstraction layer 659HAT hashed array tree 660HATEOAS hypermedia as the engine of application state 661HBA host bus adapter 662HCF halt and catch fire 663HCI host controller interface 664HCI human-computer interaction 665HCL hardware compatibility list 666HDCP High-bandwidth Digital Content Protection 667HDD hard disk drive 668HDL hardware description language 669HDMI High-Definition Multimedia Interface 670HDTV high-definition television 671HECI host embedded controller interface 672HEST hardware error source table 673HEVC high efficiency video coding 674HF high frequency 675HFM highest frequency mode 676HFS hierarchical file system 677HID human interface device 678HKP HTTP Keyserver Protocol 679HLL high-level language 680HMA high memory area 681HMI human-machine interface 682HOOD hierarchical object oriented design 683HP Hewlett-Packard 684HPC high performance computing 685HPD hot plug detection 686HPET high precision event timer 687HSM hardware security module 688HSM hierarchical storage management 689HSRP hot standby router protocol 690HT hyper-threading 691HTC hardware thermal control 692HTCC high temperature co-fired ceramic 693HTML HyperText Markup Language 694HTT hyper-threading technology 695HTTP Hypertext Transfer Protocol 696HTTPS Hypertext Transfer Protocol Secure 697HVM hardware virtual machine 698HVDS High-Voltage Differential Signaling 699HWASAN Hardware-assisted Address Sanitizer 700HZ Hertz 701I2O intelligent input/output 702IA information assurance 703IAAS infrastructure as a service 704IANA Internet Assigned Numbers Authority 705IBC iterated block cipher 706IBM International Business Machines 707IBPI international blinking pattern interpretation 708IBS instruction based sampling 709IBSS independent basic service set 710IC integrated circuit 711ICA independent computer architecture 712ICACLS integrity control access control lists 713ICB Internet Citizen's Band 714ICE in-circuit emulator 715ICE internal compiler error 716ICH I/O controller hub 717ICMP Internet Control Message Protocol 718ICT information and communications technology 719ICW initialization command word 720IDA Intel dynamic acceleration 721IDCMP Intuition direct communication message port 722IDCT inverse discrete cosine transform 723IDE integrated development environment 724IDE integrated drive electronics 725IDPS intrusion detection [and] prevention system 726IDRP inter-domain routing protocol 727IDS intrusion detection system 728IDT interrupt descriptor table 729IE Internet Explorer 730IEC International Electrotechnical Commission 731IEEE Institute of Electrical and Electronics Engineers 732IESG Internet Engineering Steering Group 733IETF Internet Engineering Task Force 734IF intermediate frequency 735IFCM isochronous flow control mode 736IFF Interchange File Format 737IFS internal field separator 738IGD Internet gateway device 739IGMP Internet Group Management Protocol 740IGP interior gateway protocol 741IHV independent hardware vendor 742IKE Internet key exchange 743ILM internal loopback mode 744ILOM integrated lights-out management 745ILP instruction level parallelism 746IM instant messaging 747IME input method editor 748IMAP Internet Message Access Protocol 749IMC integrated memory controller 750IMCR interrupt mode configuration register 751IMR interrupt mask register 752IMS information management system 753IMSI international mobile subscriber identity 754INCITS InterNational Committee for Information Technology Standards 755INODE index node 756IO input/output 757IOCTL input/output control 758IOM input/output managers 759IOMMU input/output memory management unit 760IOT Internet of Things 761IP Internet Protocol 762IP intellectual property 763IPC instructions per cycle 764IPC interprocess communication 765IPCF interprocess communication facility 766IPE integrated programming environment 767IPI intelligent peripheral interface 768IPI interprocessor interrupt 769IPL Initial Program Load 770IPL Interrupt Priority Level 771IPMB Intelligent Platform Management Bus 772IPMI Intelligent Platform Management Interface 773IPNG Internet Protocol, Next Generation 774IPS in-plane switching 775IPS intrusion prevention system 776IPSEC Internet Protocol Security 777IRC Internet Relay Chat 778IRDA infrared data association 779IRDP ICMP Router Discovery Protocol 780IRQ interrupt request 781IRQL interrupt request level 782IRR interrupt request register 783IRTF Internet Research Task Force 784IS information system 785ISA industry standard architecture 786ISA instruction set architecture 787ISE instant secure erase 788ISDN integrated services digital network 789ISI inter-symbol interference 790ISL initial system load 791ISM industrial, scientific, [and] medical 792ISMS information system management system 793ISN initial serial number 794ISO International Standards Organization 795ISOC Internet Society 796ISP Internet service provider 797ISR in-service register 798ISR interrupt service routine 799IST internal spanning tree 800IST interrupt stack table 801ISV independent software vendor 802IT information technology 803ITB Intel Turbo Boost 804ITIL information technology infrastructure library 805ITP in-target probe 806ITSM IT service management 807IV initialization vector 808IVT interrupt vector table 809JBOD just a bunch of disks 810JCL Job Control Language 811JFET junction [gate] field-effect transistor 812JIT just in time 813JPEG Joint Photographic Experts Group 814JRE Java Runtime Environment 815JSON JavaScript Object Notation 816JTAG joint test action group 817KASLR kernel address space layout randomization 818KB keyboard 819KB kilobyte 820KBD keyboard 821KBD kilobaud 822KCS keyboard controller style 823KLOC thousand lines of code 824KMS kernel-mode setting 825KPI kernel programming interface 826KVA kernel virtual address 827KVM kernel virtual machine 828KVM kernel virtual memory 829KVM keyboard, video, [and] mouse 830L2CAP link layer control and adaptation protocol 831LAG link aggregation group 832LAMP Linux Apache MySQL {Perl,PHP,Python} 833LAN local area network 834LAPIC local advanced programmable interrupt controller 835LAR load access rights 836LBA logical block addressing 837LBNF labeled backus-naur form 838LBS location-based service 839LCD liquid crystal display 840LCP link control protocol 841LDA local delivery agent 842LDAP Lightweight Directory Access Protocol 843LDR light-dependent resistor 844LDT local descriptor table 845LE logical extent 846LED light emitting diode 847LELL low energy link layer 848LER label edge router 849LF line feed 850LF low frequency 851LFM lowest frequency mode 852LFN long file names 853LFO low-frequency oscillation 854LFS log-structured file system 855LFU least frequently used 856LHP loop heat pipe 857LIF logical interchange format 858LIFO last in, first out 859LILO LInux LOader 860LILO last in, last out 861LINT local interrupt 862LIR local Internet registry 863LISP LISt Processor 864LISP Locator/ID Separation Protocol 865LKM {Linux,loadable} kernel module 866LKML Linux kernel mailing list 867LL load linked 868LL/SC load linked/store conditional 869LLC logical link control 870LLD low-level design 871LLDD low-level design document 872LLDP link layer discovery protocol 873LLF low level format 874LLMNR link-local multicast name resolution 875LLVM Low Level Virtual Machine 876LM long mode 877LMCE local machine check exception 878LMI local management interface 879LMM link management mode 880LMP link management protocol 881LNO loop nest optimization 882LOC lines of code 883LOM lights-out management 884LPE Linux performance events 885LPC low pin count 886LPS local positioning system 887LRC longitudinal redundancy check 888LRM left-to-right mark 889LRO left-to-right override 890LRU least recently used 891LS link state 892LSAN Leak Sanitizer 893LSB Linux standards base 894LSB least significant {bit,byte} 895LSI large scale integration 896LSL load segment limit 897LSM log structured merge 898LSN Large Scale NAT 899LSN log sequence number 900LSO large send offload 901LSR label switch router 902LTCC low temperature co-fired ceramic 903LTO linear tape-open 904LTO link time optimization 905LTR left to right 906LTR load task register 907LTR letter(-sized paper) 908LTS long term support 909LUA Lua Uppercase Accident 910LUN logical unit number 911LV logical volume 912LVM logical volume management 913LVT local vector table 914LVDS Low-Voltage Differential Signaling 915LWP light-weight process 916LZSS Lempel Ziv Storer Szymanski 917LZW Lempel Ziv Welch 918MAB MAC authentication bypass 919MAC mandatory access control 920MAC {media,medium} access control 921MAC message authentication {check,code} 922MADT multiple APIC descriptor table 923MAMR microwave-assisted magnetic recording 924MB megabyte 925MBA multi-boot agent 926MBR master boot record 927MBS megabits per second 928MC memory controller 929MCA machine check architecture 930MCA MicroChannel architecture 931MCC multiversion concurrency control 932MCE machine check exception 933MCGA Multi-Color Graphics Array 934MCH memory controller hub 935MCLAG multi-chassis link aggregation group 936MCM multi-chip module 937MCQ memory controlled queue 938MD machine-dependent 939MD MiniDisc 940MD-SAL model-driven service abstraction layer 941MDA mail delivery agent 942MDA Monochrome Display Adapter 943MDC Management Data Clock 944MDI Medium Dependent Interface 945MDI-X Medium Dependent Interface Crossover 946MDIO Management Data Input/Output 947MDMX MIPS Digital Media eXtension 948MDRAM multibank dynamic random access memory 949MESI modified, exclusive, shared, invalid 950MFC merge from current 951MFC Microsoft Foundation Classes 952MFM modified frequency modulation 953MFU most frequently used 954MGCP media gateway control protocol 955MHU message handling unit 956MI machine-independent 957MI machine interface 958MIB management information base 959MIC message integrity {check,code} 960MID mobile Internet device 961MIDI musical instrument digital interface 962MIF management information format 963MII media independent interface 964MIM man in the middle 965MIMD multiple instruction, multiple data 966MIME Multipurpose Internet Mail Extensions 967MIMO multiple input multiple output 968MIPS million instructions per second 969MIPS Microprocessor without Interlocked Pipeline Stages 970MISD multiple instruction, single data 971MIT Massachusetts Institute of Technology 972MITM man in the middle 973ML machine language 974ML machine learning 975ML mailing list 976ML markup language 977ML maximum likelihood 978MLAG multi-chassis link aggregation group 979MLC multi-level cell 980MLD multicast listener discovery 981MLHP micro loop heat pipe 982MMF multi-mode fiber 983MMIC monolithic microwave integrated circuit 984MMIO memory mapped input/output 985MMORPG massive multiplayer online role playing game 986MMRP multiple MAC registration protocol 987MMU memory management unit 988MMX matrix math extension 989MMX multimedia extension 990MMX multiple math extension 991MO magneto-optical 992MOESI modified, owned, exclusive, shared, invalid 993MOF maximum operating frequency 994MOSFET metal-oxide-semiconductor field-effect transistor 995MOSI modified, owned, shared, invalid 996MP multi-platform 997MP multiplayer 998MP {multiprocessing,multiprocessor} 999MPEG moving picture experts group 1000MPI message passing interface 1001MPLS Multiprotocol Label Switching 1002MPP massively parallel processor 1003MPS memory pool system 1004MPS multiprocessor specification 1005MQTT Message Queuing Telemetry Transport 1006MR modem ready 1007MRO method resolution order 1008MRP multiple registration protocol 1009MRU most recently used 1010MS Microsoft 1011MSAN Memory Sanitizer 1012MSB most significant {bit,byte} 1013MSC message sequence chart 1014MSE mean square error 1015MSF minutes seconds frames 1016MSI message signaled interrupt 1017MSI modified, shared, invalid 1018MSR {machine state,model-specific} register 1019MSS maximum segment size 1020MSTP Multiple Spanning Tree Protocol 1021MT machine translation 1022MTA mail transfer agent 1023MTBF mean time between failures 1024MTP media transfer protocol 1025MTRR memory type range register 1026MTTF mean time to failure 1027MTU maximum transmission unit 1028MUA mail user agent 1029MUD multi-user domain 1030MVCC multiversion concurrency control 1031MVR multicast VLAN registration 1032MVRP multiple VLAN registration protocol 1033MWE module width encoding 1034MX mail exchange 1035NACK negative acknowledgement 1036NAK negative acknowledgement 1037NAN neighbor awareness networking 1038NAN not a number 1039NAPT Network Address Port Translation 1040NAS network attached storage 1041NAT network address translation 1042NAV network allocation vector 1043NC numerical control 1044NC-SI network controller sideband interface 1045NCO numerically-controlled oscillator 1046NCP Network Control Protocol 1047NCSI network connectivity status indicator 1048NCQ native command queuing 1049ND neighbor discovery 1050NDFA nondeterministic finite automaton 1051NDIS network driver interface specification 1052NE numeric error 1053NEWS Network extensible Window System 1054NFA nondeterministic finite automaton 1055NFC near-field communication 1056NFCI no functional change intended 1057NFS network file system 1058NFV network function virtualization 1059NIA next instruction address 1060NIC network information center 1061NIC network interface card 1062NIDS network intrusion detection system 1063NIP network interface protocol 1064NIPS network intrusion prevention system 1065NIS network information service 1066NIST National Institute of Standards and Technology 1067NLS native language support 1068NMI non-maskable interrupt 1069NNTP Network News Transfer Protocol 1070NOC network operations center 1071NOP no operation 1072NOS network operating system 1073NP nondeterministic polynomial time 1074NRND not recommended for new designs 1075NRZ non-return to zero 1076NSA nation-state adversary 1077NSA no such agency 1078NSA National Security Agency 1079NTM non-deterministic Turing machine 1080NTP Network Time Protocol 1081NUMA non-uniform memory access 1082NURBS non-uniform rational basis spline 1083NVMM NetBSD Virtual Machine Monitor 1084NVMM non-volatile main memory 1085NVRAM non-volatile random access memory 1086NW not write-through 1087NX no execute 1088OAEP optimal asymmetric encryption padding 1089OAM operations, administration, and {management,maintenance} 1090OBO off by one 1091OBOE off by one error 1092OCL object constraint language 1093OCR optical character recognition 1094ODE offline device environment 1095ODI open data-link interface 1096ODM object data manager 1097ODCM on-demand clock modulation 1098ODT on-die termination 1099OEM original equipment manufacturer 1100OFB output feedback 1101OFDM orthogonal frequency division multiplexing 1102OFET organic field-effect transistor 1103OLAP online analytical processing 1104OLE object linking and embedding 1105OLTP online transaction processing 1106ONFI open nand flash interface 1107OO OpenOffice 1108OO object oriented 1109OOB out of band 1110OOE out of order execution 1111OOM out of memory 1112OOO OpenOffice.org 1113OOP object oriented programming 1114OOPS object oriented programming systems 1115OOSE object oriented software engineering 1116OPM operations per minute 1117OPS operations per second 1118OQL Object Query Language 1119ORB object request broker 1120ORM object-relational mapping 1121OS operating system 1122OSD object-based storage device 1123OSD open source definition 1124OSF open software foundation 1125OSI Open Source Initiative 1126OSI open systems interconnection 1127OSPF open shortest path first 1128OSPM OS power management 1129OSS open sound system 1130OSS open source software 1131OSVW operating system visible workarounds 1132OTP one time password 1133OTP open telecom platform 1134OU organizational unit 1135OUI organizationally unique identifier 1136OWASP Open Web Application Security Project 1137OWL Web Ontology Language 1138P2P PCI to PCI 1139P2P peer to peer 1140PA phase accumulator 1141PA physical address 1142PAAS platform as a service 1143PAC phase-amplitude converter 1144PAE physical address extension 1145PAGP port aggregation protocol 1146PAL phase alternating line 1147PAL programmable array logic 1148PAM pluggable authentication modules 1149PAM pulse amplitude modulation 1150PAP password authentication protocol 1151PAT page attribute table 1152PAT port address translation 1153PATA parallel ATA 1154PAX portable archive exchange 1155PBE pending break encoding 1156PBE programming by example 1157PC personal computer 1158PC program counter 1159PCB printed circuit board 1160PCB process control block 1161PCB Protocol Control Block 1162PCBC propagating cipher block chaining 1163PCC Portable C Compiler 1164PCD page-level cache disable 1165PCE path computation element 1166PCE performance-monitor counter enable 1167PCEP Path Computation Element Protocol 1168PCH platform controller hub 1169PCI peripheral component interconnect 1170PCM phase change memory 1171PCM pulse code modulation 1172PCMCIA Personal Computer Memory Card International Association 1173PCP Port Control Protocol 1174PD public domain 1175PDA personal digital assistant 1176PDA pushdown automaton 1177PDAG propositional directed acyclic graph 1178PDB power distribution board 1179PDF portable document format 1180PDM pulse-duration modulation 1181PDN pull-down network 1182PDP page {descriptor,directory} page 1183PDS product data sheet 1184PDU protocol data unit 1185PE protection enable 1186PE provider edge 1187PEAP Protected EAP 1188PECI platform environment control interface 1189PEP protocol extension protocol 1190PER packed encoding rules 1191PFS perfect forward secrecy 1192PGAS partitioned global address space 1193PGE page global enable 1194PGP Pretty Good Privacy 1195PHB PCI host bridge 1196PHP PHP: Hypertext Preprocessor 1197PIC performance instrumentation counters 1198PIC position independent code 1199PIC programmable interrupt controller 1200PICNIC problem in chair, not in computer 1201PID process id 1202PIE position independent executable 1203PIL Priority Interrupt Level 1204PIM personal information manager 1205PIM platform-independent model 1206PIO programmed input/output 1207PIPT physically indexed, physically tagged 1208PIQ prefetch input queue 1209PIT programmable interrupt timer 1210PIV personal identity verification 1211PIX Private Internet eXchange 1212PKCS public-key cryptography standards 1213PKI public key infrastructure 1214PLC programmable logic controller 1215PLD programmable logic device 1216PLL phase locked loop 1217PLRU pseudo LRU 1218PLTM package level thermal management 1219PM power management 1220PM {phase,pulse} modulation 1221PMC performance monitoring counters 1222PME power management event 1223PMEG page map entry group 1224PMI performance monitoring infrastructure 1225PMI platform management interrupt 1226PMIC power management integrated circut 1227PMIO port-mapped input/output 1228PMT photo-multiplier tube 1229PMU performance monitoring units 1230PMU power management unit 1231PNG portable network graphics 1232PNP plug and play 1233POE power over ethernet 1234POF probability of failure 1235POP Post Office Protocol 1236POP power on password 1237POR plan of record 1238POSIX Portable Operating System Interface [for Unix] 1239POST power on self test 1240POTS plain old telephone system 1241POWER Performance Optimization With Enhanced RISC 1242POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1243PP pair programming 1244PPB PCI [to] PCI bridge 1245PPC PowerPC 1246PPC Power Performance Computing 1247PPI pixels per inch 1248PPM pages per minute 1249PPP Point-to-Point Protocol 1250PPPOA Point-to-Point Protocol over ATM 1251PPPOE Point-to-Point Protocol over Ethernet 1252PPR processor programming reference 1253PPT powerpoint 1254PPT punched paper tape 1255PPU physics processing unit 1256PRAM Parameter RAM 1257PRBS pseudorandom bit sequence 1258PRG pseudorandom generator 1259PRF pseudorandom function [family] 1260PRML partial response, maximum likelihood 1261PRN pseudorandom {noise,number} 1262PRNG pseudorandom number generator 1263PROM programmable read only memory 1264PRP pseudorandom permutation 1265PRU Programmable Realtime Unit 1266PS PostScript 1267PSD power spectral density 1268PSE page size extensions 1269PSK phase shift keying 1270PSK pre-shared key 1271PSTN public switched telephone network 1272PSW program status word 1273PTE page table entry 1274PTLA pseudo top level aggregator 1275PTP page table page 1276PTV perceived target value 1277PU processing unit 1278PUC personal unblocking code 1279PUN physical unit number 1280PV physical volume 1281PVC permanent virtual circuit 1282PVG physical volume group 1283PVI protected-mode virtual interrupt 1284PVRST Per-VLAN rapid spanning tree 1285PVST Per-VLAN Spanning Tree 1286PWM pulse width modulation 1287PXE preboot execution environment 1288QA quality assurance 1289QAM quadrature amplitude modulation 1290QAM quality assurance management 1291QBE query by example 1292QC quality control 1293QDI quasi delay insensitive 1294QCIF quarter common intermediate format 1295QOI quality of implementation 1296QOI quick order interface 1297QOS quality of service 1298QVL qualified vendor list 1299R/O read only 1300R/W read/write 1301RA receiver address 1302RA remote assistance 1303RA resource affinity 1304RA router advertisement 1305RAD rapid application development 1306RADIUS remote authentication dial-in user service 1307RAID redundant array of {independent,inexpensive} disks 1308RAM random access memory 1309RAS reliability, availability and serviceability 1310RAS remote access service 1311RAS restartable atomic sequence 1312RAS row address strobe 1313RBF radial basis function 1314RBNF routing backus-naur form 1315RBT red-black tree 1316RC release candidate 1317RC remote control 1318RC run commands 1319RCS Revision Control System 1320RCS revision control system 1321RCU read, copy, update 1322RDB Rigid Disk Block 1323RDBMS relational database management system 1324RDF Resource Description Framework 1325RDM relational data model 1326RDMA remote direct memory access 1327RDP remote desktop protocol 1328RDRAM Rambus DRAM 1329RE regular expression 1330REPL read, evaluate, print, loop 1331REST representational state transfer 1332RF radio frequency 1333RFB remote frame buffer 1334RFI radio frequency interference 1335RFO request for ownership 1336RFU reserved for future use 1337RGB red green blue 1338RGBA red green blue alpha 1339RGMII reduced gigabit media independent interface 1340RH read hit 1341RHEL Red Hat Enterprise Linux 1342RHL Red Hat Linux 1343RIB routing information base 1344RIFF Resource Interchange File Format 1345RIP Raster Image Processor 1346RIP Routing Information Protocol 1347RIR regional Internet registry 1348RISC reduced instruction set {computer,computing} 1349RKM ROM Kernel Manual 1350RLE run length encoding 1351RLL run length limited 1352RLO right-to-left override 1353RM read miss 1354RMCP Remote Management Control Protocol 1355RMI remote method invocation 1356RMO Relaxed Memory Ordering 1357RMPM rapid memory power management 1358RMS root mean square 1359RMW read, modify, write 1360RNG random number generator 1361ROM read only memory 1362RPC remote procedure call 1363RPKI resource PKI 1364RPL requested privilege level 1365RPM revolutions per minute 1366RPN reverse Polish notation 1367RPVST Rapid Per-VLAN Spanning Tree 1368RR random replacement 1369RR round robin 1370RS relay station 1371RSA Rivest, Shamir, [and] Adleman 1372RSIP Realm Specific IP 1373RSN Robust Secure Network 1374RSS really simple syndication 1375RSS residual sum of squares 1376RSTP Rapid Spanning Tree Protocol 1377RT real time 1378RTC real time clock 1379RTC real time computing 1380RTF rich text format 1381RTL register transfer language 1382RTL resistor-transistor logic 1383RTL right to left 1384RTOS real time operating system 1385RTS request to send 1386RTT round trip time 1387RUP rational unified process 1388RW Rabin-Williams 1389RWM read-write memory 1390RX {receive,receiver} 1391S/PDIF Sony/Philips Digital Interface Format 1392SA security advisory 1393SA security association 1394SA source address 1395SA structured analysis 1396SAAS software as a service 1397SABRE Semi-automated business research environment 1398SACD super audio compact disc 1399SAD security association database 1400SAF-TE SCSI accessed fault-tolerant enclosure 1401SAGE Semi-automated ground environment 1402SAL {service,system} abstraction layer 1403SAM serial access memory 1404SAM sum addressed memory 1405SAML security assertion markup language 1406SAN storage area network 1407SAP service access point 1408SAPIC streamlined advanced programmable interrupt controller 1409SASD structured analysis, structured design 1410SASI Shugart Associates System Interface 1411SASL simple authentication [and] security layer 1412SATA serial advanced technology attachment 1413SAX simple API for XML 1414SB sound blaster 1415SBSA server base system architecture 1416SBU standard build unit 1417SC store conditional 1418SCA source code analyzer 1419SCADA supervisory control and data acquisition 1420SCC single chip cloud 1421SCC source code control 1422SCCP skinny call control protocol 1423SCCS Source Code Control System 1424SCI scalable coherent interface 1425SCI system control interrupt 1426SCIM smart common input method 1427SCM software configuration management 1428SCM source code management 1429SCM storage-class memory 1430SCO synchronous connection orientated 1431SCP secure copy 1432SCP system control processor 1433SCPI system control and power interface 1434SCSI Small Computer System Interface 1435SCTP Stream Control Transmission Protocol 1436SDDC software defined data center 1437SDEI software delegated exception interface 1438SDI symbol deinterleave 1439SDK software development kit 1440SDL Simple Declarative Language 1441SDL Simple Direct-media Layer 1442SDLC {software,system,systems} development life cycle 1443SDN software defined networking 1444SDP Session Description Protocol 1445SDR software defined radio 1446SDRAM synchronous dynamic random access memory 1447SDS software defined storage 1448SDT syntax-directed translation 1449SEA synchronous external abort 1450SEGV segmentation violation 1451SED self-encrypting drive 1452SED stream editor 1453SEMB serial ATA enclosure management bridge 1454SEO search engine optimization 1455SES SCSI enclosure services 1456SFC sequential function chart 1457SFI simple firmware interface 1458SFI software fault isolation 1459SFTP SSH File Transfer Protocol 1460SFTP Serial File Transfer Protocol 1461SFTP Simple File Transfer Protocol 1462SGI Silicon Graphics, Inc 1463SGI software generated interrupt 1464SGMII serial gigabit media independent interface 1465SGPIO serial general purpose input/output 1466SGRAM synchronous graphics random access memory 1467SHA secure hash algorithm 1468SICP structure and interpretation of computer programs 1469SIDH supersingular isogeny Diffie-Hellman 1470SIEM security information and event management 1471SIF source input format 1472SIFS short inter-frame space 1473SIM subscriber identity module 1474SIMD single instruction, multiple data 1475SIMM single inline memory module 1476SIP Session Initiation Protocol 1477SIR signal-to-interference ratio 1478SIR slow infrared 1479SISD single instruction, single data 1480SLAAC stateless address auto-configuration 1481SLC single-level cell 1482SLDRAM synchronous-link dynamic random access memory 1483SLED single large expensive disk 1484SLI scalable link interface 1485SLI scan-line interleave 1486SLIC system license internal code 1487SLOC source lines of code 1488SLRU segmented LRU 1489SMA smart memory access 1490SMAF system management action field 1491SMAP Simple Mail Access Protocol 1492SMAP supervisor mode access prevention 1493SMART self-monitoring analysis and reporting technology 1494SMB Server Message Block 1495SMB system management bus 1496SMBIOS System Management BIOS 1497SMC system management controller 1498SMD storage module device 1499SMEP supervisor mode execution protection 1500SMF single mode fiber 1501SMI structure of management information 1502SMI system management interrupt 1503SMM system management mode 1504SMP serial management protocol 1505SMP symmetric multiprocessing 1506SMT simultaneous multithreading 1507SMTP Simple Mail Transfer Protocol 1508SMU system management unit 1509SNA systems network architecture 1510SNAP Sub-Network Access Protocol 1511SNIA Storage Networking Industry Association 1512SNMP Simple Network Management Protocol 1513SNR signal-to-noise ratio 1514SOA service oriented architecture 1515SOAP Simple Object Access Protocol 1516SOC system on chip 1517SOF start of frame 1518SOH start of header 1519SOHO small office/home office 1520SOL serial over LAN 1521SOM system on module 1522SP service pack 1523SP stack pointer 1524SPA storage pool allocator 1525SPAN switched port analyzer 1526SPARC scalable processor architecture 1527SPARQL SPARQL Protocol and RDF Query Language 1528SPD security policy database 1529SPD serial presence detect 1530SPDIF Sony/Philips digital interface format 1531SPI serial peripheral interface 1532SPI stateful packet inspection 1533SPL system interrupt priority level 1534SPL spinlock 1535SPMD single process, multiple data 1536SPR special purpose register 1537SPT sectors per track 1538SQA software quality assurance 1539SQCIF sub quarter common intermediate format 1540SQL Structured Query Language 1541SRAM static random access memory 1542SRC sample rate conversion 1543SRP SCSI RDMA protocol 1544SRR shaped round robin 1545SS self-snoop 1546SS stack segment 1547SSA static single assignment 1548SSAP source service access point 1549SSB single-sideband modulation 1550SSC spread spectrum clock 1551SSD solid state drive 1552SSE streaming SIMD extensions 1553SSFDC solid state floppy disc card 1554SSH secure shell 1555SSI server side includes 1556SSID service set identifier 1557SSTP secure socket tunneling protocol 1558SSL secure sockets layer 1559SSP stack smashing protection 1560STC software thermal control 1561STD state transition diagram 1562STM software transactional memory 1563STOMP Streaming Text Oriented Messaging Protocol 1564STP Spanning Tree Protocol 1565STP shielded twisted pair 1566STRG spanning tree root guard 1567SUN Stanford University Network 1568SUS Single Unix Specification 1569SUT system under test 1570SVC switched virtual circuit 1571SVG scalable vector graphics 1572SVGA Super Video Graphics Array 1573SVI {switch,switched} virtual interface 1574SVM secure virtual machine 1575SVM support vector machine 1576SVR System V Release 1577SVS Separate Virtual Space 1578SWF Shockwave Flash 1579SWIG simplified wrapper [and] interface generator 1580SYR symbol timing recovery 1581TA test assertion 1582TA transmitter address 1583TACACS terminal access controller access-control system 1584TAI international atomic time 1585TAO track at once 1586TAOCP The Art of Computer Programming 1587TAP Test Anything Protocol 1588TAS test and set 1589TB terabyte 1590TBNF transitional backus-naur form 1591TCB trace capture buffer 1592TCB trusted computing base 1593TCC thermal control circuit 1594TCL tool command language 1595TCP Transmission Control Protocol 1596TCQ tagged command queueing 1597TDC time [to] digital converter 1598TDD test-driven development 1599TDD time division duplex 1600TDM time division multiplexing 1601TDMA time division multiple access 1602TDOA time difference of arrival 1603TDP thermal design {point,power} 1604TDR time-domain reflectometry 1605TECO Text Editor and Corrector 1606TFT thin film transistor 1607TFTP Trivial File Transfer Protocol 1608TIAS try it and see 1609TIFF tagged image file format 1610TITS try it to see 1611TK temporal key 1612TKIP Temporal Key Integrity Protocol 1613TLA top level aggregator 1614TLB translation lookaside buffer 1615TLD top level domain 1616TLER time-limited error recovery 1617TLI transport layer interface 1618TLS thread local storage 1619TLS transport layer security 1620TM Turing machine 1621TM thermal monitor 1622TMG transmogrifier 1623TMDS transition minimized differential signaling 1624TMO timeout 1625TOD time of day 1626TOFU trust on first use 1627TOS terms of service 1628TOS trusted operating system 1629TOS type of service 1630TP transaction processing 1631TPI tracks per inch 1632TPM transactions per minute 1633TPM trusted platform module 1634TPR task priority register 1635TPS transactions per second 1636TPS transmission parameters signaling 1637TR task register 1638TR token ring 1639TRL timing recovery loop 1640TRNG true random number generator 1641TS terminal services 1642TS time series 1643TS time stamp 1644TS transport stream 1645TSAN Thread Sanitizer 1646TSC time stamp counter 1647TSD time stamp disable 1648TSDB time series database 1649TSL test, set, lock 1650TSO time sharing option 1651TSO Total Store Ordering 1652TSP Time-Stamp Protocol 1653TSP Tunnel Setup Protocol 1654TSP time synchronization protocol 1655TSP traveling salesman problem 1656TSS task state segment 1657TSV tab-separated values 1658TTL time to live 1659TTL transistor-transistor logic 1660TTM translation table maps 1661TTY teletype 1662TUI {terminal,text-based,textual} user interface 1663TX {transmit out,transmitter} 1664TXG transaction group 1665TZ time zone 1666UAC user {access,account} control 1667UAF use-after-free 1668UART universal asynchronous receiver/transmitter 1669UAT user acceptance testing 1670UB undefined behavior 1671UBSAN Undefined Behavior Sanitizer 1672UC uncacheable 1673UCS uniform-cost search 1674UCS unified computing system 1675UCS universal coded character set 1676UDI uniform driver interface 1677UDMA ultra DMA 1678UDO ultra density optical 1679UDP User Datagram Protocol 1680UEFI unified extensible firmware interface 1681UFS Unix File System 1682UGA universal graphics adapter 1683UI unit interval 1684UI user interface 1685UICC universal integrated circuit card 1686UID unique identifier 1687UID user identifier 1688UL upload 1689UMA uniform memory access 1690UMA upper memory area 1691UMB upper memory block 1692UML unified modeling language 1693UMPC ultra-mobile PC 1694UPNP universal plug and play 1695UPS uninterruptible power supply 1696URI uniform resource identifier 1697URL uniform resource locator 1698URN uniform resource name 1699USART universal synchronous/asynchronous receiver/transmitter 1700USB universal serial bus 1701USWC uncacheable speculative write combining 1702UT unit test 1703UTC coordinated universal time 1704UTF unicode transformation formats 1705UTP unshielded twisted pair 1706UTS UNIX time-sharing 1707UUCP Unix-to-Unix Copy Protocol 1708UUID universally unique identifier 1709UUOC useless use of cat 1710UUT unit under test 1711UX user experience 1712VA vertical alignment 1713VA virtual address 1714VA volt-ampere 1715VAX virtual address extension 1716VB Visual Basic 1717VCA variable-gain amplifier 1718VCC common collector voltage 1719VCCP virtual chassis control protocol 1720VCF voltage-controlled filter 1721VCM virtual channel memory 1722VCO voltage-controlled oscillator 1723VCP virtual chassis port 1724VCS version control system 1725VDPAU Video Decode and Presentation API for Unix 1726VES virtual execution system 1727VESA Video Electronics Standards Association 1728VFO variable-frequency oscillator 1729VFS virtual file system 1730VG volume group 1731VGA Video Graphics Array 1732VHDCI very high density cable interconnect 1733VID {VLAN,voltage level} identifier 1734VIM Vi IMproved 1735VIPT virtually indexed, physically tagged 1736VIVT virtually indexed, virtually tagged 1737VLAN virtual local area network 1738VLD variable-length decoding 1739VLIW very long instruction word 1740VLSI very large scale integration 1741VLSM variable length subnet mask 1742VM virtual {machine,memory} 1743VME virtual mode extension 1744VMX vector multimedia extensions 1745VMX virtual machine extensions 1746VNC virtual network computing 1747VOD video on demand 1748VPD vital product data 1749VPN virtual private network 1750VPWS virtual private wire service 1751VR virtual reality 1752VRAM video random access memory 1753VRF virtual routing and forwarding 1754VRM voltage regulator module 1755VROC Virtual RAID On CPU 1756VRRP Virtual Router Redundancy Protocol 1757VSTP VLAN Spanning Tree Protocol 1758VTP VLAN Trunking Protocol 1759VXFS Veritas file system 1760VXVM Veritas volume manager 1761W watt 1762W3C World Wide Web Consortium 1763WAFL write anywhere file layout 1764WAMP Web Application Messaging Protocol 1765WAN wide area network 1766WAP Wireless Application Protocol 1767WAP wireless access point 1768WDM Windows Driver Model 1769WDDM Windows Display Driver Model 1770WDT watchdog timer 1771WEP Wired Equivalent Privacy 1772WFI wait for interrupt 1773WFQ weighted fair queuing 1774WH write hit 1775WHEA Windows hardware error architecture 1776WIFI wireless fidelity 1777WLAN wireless local area network 1778WM write miss 1779WMF Windows meta file 1780WMI Windows Management Instrumentation 1781WOL Wake-on-LAN 1782WOM Wake-on-Modem 1783WOR Wake-on-Ring 1784WORM write once read many 1785WP WordPerfect 1786WP word processor 1787WP write protect 1788WPA Wi-Fi Protected Access 1789WPA2 Wi-Fi Protected Access II 1790WPAD web proxy auto-discovery protocol 1791WPS Wi-Fi Protected Setup 1792WRAM window random access memory 1793WS web services 1794WTC write through caching 1795WTD weighted tail drop 1796WWAN wireless wide area network 1797WWW world wide web 1798WYSIAYG what you see is all you get 1799WYSIWYG what you see is what you get 1800XBAR crossbar 1801XDMCP X Display Manager control protocol 1802XER XML encoding rules 1803XGA Extended Graphics Array 1804XHR XMLHttpRequest 1805XIP execute in place 1806XML Extensible Markup Language 1807XNA XNA's not acronymed 1808XNS Xerox network systems 1809XOR exclusive or 1810XP extreme programming 1811XSI X/Open System Interface 1812XSL extensible stylesheet language 1813XSLT extensible stylesheet language transformations 1814XSS cross site scripting 1815XT extended technology 1816XTACACS extended terminal access controller access-control system 1817XTI X/Open transport interface 1818XUL XML user interface language 1819YACC yet another compiler compiler 1820YAML YAML ain't markup language 1821YANG yet another next generation 1822YAWPFAPR you are welcome; please file a problem report 1823YP Yellow Pages 1824YTD year to date 1825ZAP ZFS attribute processor 1826ZBR zone bit recording 1827ZFOD zero-filled on demand 1828ZFS zettabyte file system 1829ZIF zero insertion force 1830ZIFS zero insertion force socket 1831ZIL ZFS intent log 1832ZMA zone multicast address 1833ZOI zero one infinity 1834ZOI zone of influence 1835ZPL ZFS Posix layer 1836ZVOL ZFS Volume 1837