acronyms.comp revision 1.312
1$NetBSD: acronyms.comp,v 1.312 2020/09/19 01:43:20 ginsbach 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 direct current 363DCC Direct Client-to-Client 364DCC direct cable connect 365DCD data carrier detect 366DCE data control equipment 367DCE distributed computing environment 368DCIM data center infrastructure management 369DCIM digital camera images 370DCL Digital Command Language 371DCOM distributed component object model 372DCOP Desktop COmmunication Protocol 373DCS data collection systems 374DCT discrete cosine transform 375DCU data cache unit 376DDC display data channel 377DDE dynamic data exchange 378DDI device drivers interface 379DDK device driver kit 380DDL data description language 381DDR double data rate 382DDS direct digital sound 383DDWG Digital Display Working Group 384DE debugging extensions 385DE desktop environment 386DEA data encryption algorithm 387DEC Digital Equipment Corporation 388DEK data encryption key 389DEP data execution prevention 390DER distinguished encoding rules 391DES Data Encryption Standard 392DF don't fragment 393DFA deterministic finite automaton 394DFC data flow control 395DFS depth first search 396DFS distributed file system 397DFSAN Data Flow Sanitizer 398DFT diagnostic function test 399DFT discrete Fourier transform 400DGL data generation language 401DGEMM double precision general matrix multiply 402DH Diffie-Hellman 403DHCP Dynamic Host Configuration Protocol 404DIA dedicated Internet access 405DIB device independent bitmap 406DIFS distributed inter-frame space 407DIMM dual inline memory module 408DIRT design in real time 409DKI driver/kernel interface 410DL diode logic 411DL discrete logarithm 412DL download 413DLCI data link connection identifier 414DLE data link escape 415DLL dynamic link library 416DLNA digital living network alliance 417DLP discrete logarithm problem 418DMA direct memory access 419DMI desktop management interface 420DMS document management system 421DMT discrete multitone modulation 422DMU data management layer 423DNARD Digital network appliance reference design 424DND drag and drop 425DNLC directory name lookup cache 426DNS Domain Name System 427DNSSEC DNS Security Extensions 428DOE distributed object environment 429DOF data over fibre 430DOM document object model 431DOS denial of service 432DOS disk operating system 433DP DisplayPort 434DPC deferred procedure call 435DPCM differential pulse code modulation 436DPD dead peer detection 437DPI deep packet inspection 438DPI dots per inch 439DPL descriptor privilege level 440DPS Display PostScript 441DPST display power savings technology 442DRAAS disaster recovery as a service 443DRAM dynamic random access memory 444DRBG deterministic random bit generator 445DRI direct rendering infrastructure 446DRM digital rights management 447DRRS display refresh rate switching 448DS debug store 449DS differentiated services 450DS9000 DeathStation 9000 451DS9K DeathStation 9000 452DSA digital signature algorithm 453DSAP destination service access point 454DSB double-sideband modulation 455DSCP differentiated services code point 456DSDT differentiated system descriptor table 457DSF device special file 458DSL dataset and snapshot layer 459DSL digital subscriber line 460DSL domain specific language 461DSLAM digital subscriber line access multiplexer 462DSN delivery status notification 463DSO dynamic shared object 464DSP digital signal processor 465DSSS direct sequence spread spectrum 466DTB device tree blob 467DTC device tree compiler 468DTD document type definition 469DTE data terminal equipment 470DTE dumb terminal emulator 471DTL diode-transistor logic 472DTLS datagram transport layer security 473DTS device tree source 474DTS digital thermal sensor 475DUT device under test 476DVB digital video broadcasting 477DVCS distributed version control system 478DVD digital versatile disc 479DVFS dynamic voltage and frequency scaling 480DVI device independent 481DVI Digital Visual Interface 482DVR digital video recorder 483E-XER extended XML encoding rules 484EABI embedded-application binary interface 485EAI Email Address Internationalization 486EAI Enterprise Application Integration 487EAP Extensible Authentication Protocol 488EAPOL EAP over Lan 489EAV entity-attribute-value model 490EAV ethernet audio/video bridging 491EBCDIC Extended Binary Coded Decimal Interchange Code 492EBDA Extended BIOS Data Area 493EBNF extended backus-naur form 494EBR extended boot record 495EC elliptic curve 496ECC elliptic curve cryptography 497ECC error correction code 498ECDH elliptic curve Diffie-Hellman 499ECDL elliptic curve discrete logarithm 500ECDLP elliptic curve discrete logarithm problem 501ECDSA elliptic curve digital signature algorithm 502ECL emitter-coupled logic 503ECN explicit congestion notification 504ECP enhanced capability port 505ECS enhanced chip set 506ECS extended configuration space 507EDAC error detection and correction 508EDAT enhanced dynamic acceleration technology 509EdDSA Edwards curve digital signature algorithm 510EDGE explicit data graph execution 511EDID extended display identification data 512EDO extended data out 513EDS electronical data sheet 514EDSAC electronic delay storage automatic calculator 515EDVAC electronic discrete variable automatic computer 516EEE energy efficient ethernet 517EEPROM electrically erasable programmable read only memory 518EFI extensible firmware interface 519EFL emitter follower logic 520EFM eight to fourteen modulation 521EFS extent file system 522EGA Enhanced Graphics Adapter 523EGP exterior gateway protocol 524EH extension header 525EIDE enhanced IDE 526EISA extended industry standard architecture 527EINJ error injection table 528ELF executable and linking format 529ELS entry level system 530EMI electro-magnetic interference 531EMP electro-magnetic pulse 532EMR electro-magnetic radiation 533EMACS Editor MACroS 534ENIAC electronic numerical integrator and computer 535EOF end of file 536EOI end of interrupt 537EOIS end of interactive support 538EOL end of life 539EOL end of line 540EOT end of transmission 541EPIC explicitly parallel instruction computing 542EPP enhanced parallel port 543EPRML extended partial response, maximum likelihood 544EPROM erasable programmable read only memory 545EPT extended page tables 546ERC error recovery control 547ERD emergency recovery disk 548ERD entity relationship diagram 549ERE extended regular expression 550ERST error record serialization table 551ESAN Efficiency Sanitizer 552ESB enterprise service bus 553ESDI enhanced small disk interface 554ESDRAM enhanced synchronous dynamic random access memory 555ESI enclosure services interface 556ESS electronic switching system 557ESS extended service set 558ESSID extended service set identifier 559EST enhanced speedstep 560ETL extract, transform, load 561EU execution unit 562EULA end user license agreement 563FAT file allocation table 564FBRAM frame buffer random access memory 565FCIF full common intermediate format 566FCL fiber channel loop 567FCS frame check sequence 568FDC floppy disk controller 569FDD floppy disk drive 570FDDI fiber distributed data interface 571FDE full disk encryption 572FDT flattened device tree 573FEA finite element analysis 574FEC forward error correction 575FET field-effect transistor 576FF finite field 577FF form feed 578FFDH finite-field Diffie-Hellman 579FFH functional fixed hardware 580FFI foreign function interface 581FFM focus follows mouse 582FFS Fast File System 583FFS find first set 584FFT fast Fourier transform 585FG floating gate 586FHRP first hop redundancy protocol 587FHSS frequency hop spread spectrum 588FID frequency identifier 589FIFO first in, first out 590FILO first in, last out 591FIPS Federal Information Processing Standards 592FIR fast infrared 593FLOPS floating [point] operations per second 594FLOSS free/libre/open source software 595FM frequency modulation 596FMR false match rate 597FOSS free/open source software 598FPGA field programmable gate array 599FPM fast page mode 600FPR floating point register 601FPU floating point unit 602FQDN fully qualified domain name 603FRR false rejection rate 604FRU field replaceable unit 605FS file system 606FSB front side bus 607FSCK file system check 608FSF Free Software Foundation 609FSK frequency shift keying 610FSM finite-state machine 611FTA fault tree analysis 612FTL flash translation layer 613FTP File Transfer Protocol 614FTPS File Transfer Protocol Secure 615FTTH fiber to the home 616FUS fast user switching 617FWH firmware hub 618FWS folding white space 619GAL generic array logic 620GARP generic attribute registration protocol 621GAS generic address structure 622GC garbage collector 623GCM Galois counter mode 624GCR group-coded recording 625GDI Graphics Device Interface 626GDT global descriptor table 627GECOS general comprehensive operating supervisor 628GEM graphics environment manager 629GEM graphics execution manager 630GEMM general matrix multiply 631GENA general event notification architecture 632GHC Glasgow Haskell compiler 633GHES generic hardware error source 634GIC generic interrupt controller 635GID group identifier 636GIF graphics interchange format 637GLBP gateway load balancing protocol 638GMCH graphics and memory controller hub 639GNU GNU's Not Unix 640GOP graphics output protocol 641GOT global offset table 642GPE general purpose event 643GPF general protection fault 644GPG GNU Privacy Guard 645GPL [GNU] General Public License 646GPR general purpose register 647GPS generalized processor sharing 648GPT GUID partition table 649GPU graphics processing unit 650GR golden ratio 651GRE generic routing encapsulation 652GSI global system interrupt 653GUI graphical user interface 654GUID globally unique identifier 655GVFS git virtual file system 656HA high availability 657HAL hardware abstraction layer 658HAT hashed array tree 659HATEOAS hypermedia as the engine of application state 660HBA host bus adapter 661HCF halt and catch fire 662HCI host controller interface 663HCI human-computer interaction 664HCL hardware compatibility list 665HDCP High-bandwidth Digital Content Protection 666HDD hard disk drive 667HDL hardware description language 668HDMI High-Definition Multimedia Interface 669HDTV high-definition television 670HECI host embedded controller interface 671HEST hardware error source table 672HEVC high efficiency video coding 673HF high frequency 674HFM highest frequency mode 675HFS hierarchical file system 676HID human interface device 677HKP HTTP Keyserver Protocol 678HLL high-level language 679HMA high memory area 680HMI human-machine interface 681HOOD hierarchical object oriented design 682HP Hewlett-Packard 683HPC high performance computing 684HPD hot plug detection 685HPET high precision event timer 686HSM hardware security module 687HSM hierarchical storage management 688HSRP hot standby router protocol 689HT hyper-threading 690HTC hardware thermal control 691HTCC high temperature co-fired ceramic 692HTML HyperText Markup Language 693HTT hyper-threading technology 694HTTP Hypertext Transfer Protocol 695HTTPS Hypertext Transfer Protocol Secure 696HVM hardware virtual machine 697HVDS High-Voltage Differential Signaling 698HWASAN Hardware-assisted Address Sanitizer 699HZ Hertz 700I2O intelligent input/output 701IA information assurance 702IAAS infrastructure as a service 703IANA Internet Assigned Numbers Authority 704IBC iterated block cipher 705IBM International Business Machines 706IBPI international blinking pattern interpretation 707IBS instruction based sampling 708IBSS independent basic service set 709IC integrated circuit 710ICA independent computer architecture 711ICACLS integrity control access control lists 712ICB Internet Citizen's Band 713ICE in-circuit emulator 714ICE internal compiler error 715ICH I/O controller hub 716ICMP Internet Control Message Protocol 717ICT information and communications technology 718ICW initialization command word 719IDA Intel dynamic acceleration 720IDCMP Intuition direct communication message port 721IDCT inverse discrete cosine transform 722IDE integrated development environment 723IDE integrated drive electronics 724IDPS intrusion detection [and] prevention system 725IDRP inter-domain routing protocol 726IDS intrusion detection system 727IDT interrupt descriptor table 728IE Internet Explorer 729IEC International Electrotechnical Commission 730IEEE Institute of Electrical and Electronics Engineers 731IESG Internet Engineering Steering Group 732IETF Internet Engineering Task Force 733IF intermediate frequency 734IFCM isochronous flow control mode 735IFF Interchange File Format 736IFS internal field separator 737IGD Internet gateway device 738IGMP Internet Group Management Protocol 739IGP interior gateway protocol 740IHV independent hardware vendor 741IKE Internet key exchange 742ILM internal loopback mode 743ILOM integrated lights-out management 744ILP instruction level parallelism 745IM instant messaging 746IME input method editor 747IMAP Internet Message Access Protocol 748IMC integrated memory controller 749IMCR interrupt mode configuration register 750IMR interrupt mask register 751IMS information management system 752IMSI international mobile subscriber identity 753INCITS InterNational Committee for Information Technology Standards 754INODE index node 755IO input/output 756IOCTL input/output control 757IOM input/output managers 758IOMMU input/output memory management unit 759IOT Internet of Things 760IP Internet Protocol 761IP intellectual property 762IPC instructions per cycle 763IPC interprocess communication 764IPCF interprocess communication facility 765IPE integrated programming environment 766IPI intelligent peripheral interface 767IPI interprocessor interrupt 768IPL Initial Program Load 769IPL Interrupt Priority Level 770IPMB Intelligent Platform Management Bus 771IPMI Intelligent Platform Management Interface 772IPNG Internet Protocol, Next Generation 773IPS in-plane switching 774IPS intrusion prevention system 775IPSEC Internet Protocol Security 776IRC Internet Relay Chat 777IRDA infrared data association 778IRDP ICMP Router Discovery Protocol 779IRQ interrupt request 780IRQL interrupt request level 781IRR interrupt request register 782IRTF Internet Research Task Force 783IS information system 784ISA industry standard architecture 785ISA instruction set architecture 786ISE instant secure erase 787ISDN integrated services digital network 788ISI inter-symbol interference 789ISL initial system load 790ISM industrial, scientific, [and] medical 791ISMS information system management system 792ISN initial serial number 793ISO International Standards Organization 794ISOC Internet Society 795ISP Internet service provider 796ISR in-service register 797ISR interrupt service routine 798IST internal spanning tree 799IST interrupt stack table 800ISV independent software vendor 801IT information technology 802ITB Intel Turbo Boost 803ITIL information technology infrastructure library 804ITP in-target probe 805ITSM IT service management 806IV initialization vector 807IVT interrupt vector table 808JBOD just a bunch of disks 809JCL Job Control Language 810JFET junction [gate] field-effect transistor 811JIT just in time 812JPEG Joint Photographic Experts Group 813JRE Java Runtime Environment 814JSON JavaScript Object Notation 815JTAG joint test action group 816KASLR kernel address space layout randomization 817KB keyboard 818KB kilobyte 819KBD keyboard 820KBD kilobaud 821KCS keyboard controller style 822KLOC thousand lines of code 823KMS kernel-mode setting 824KPI kernel programming interface 825KVA kernel virtual address 826KVM kernel virtual machine 827KVM kernel virtual memory 828KVM keyboard, video, [and] mouse 829L2CAP link layer control and adaptation protocol 830LAG link aggregation group 831LAMP Linux Apache MySQL {Perl,PHP,Python} 832LAN local area network 833LAPIC local advanced programmable interrupt controller 834LAR load access rights 835LBA logical block addressing 836LBNF labeled backus-naur form 837LBS location-based service 838LCD liquid crystal display 839LCP link control protocol 840LDA local delivery agent 841LDAP Lightweight Directory Access Protocol 842LDR light-dependent resistor 843LDT local descriptor table 844LE logical extent 845LED light emitting diode 846LELL low energy link layer 847LER label edge router 848LF line feed 849LF low frequency 850LFM lowest frequency mode 851LFN long file names 852LFO low-frequency oscillation 853LFS log-structured file system 854LFU least frequently used 855LHP loop heat pipe 856LIF logical interchange format 857LIFO last in, first out 858LILO LInux LOader 859LILO last in, last out 860LINT local interrupt 861LIR local Internet registry 862LISP LISt Processor 863LISP Locator/ID Separation Protocol 864LKM {Linux,loadable} kernel module 865LKML Linux kernel mailing list 866LL load linked 867LL/SC load linked/store conditional 868LLC logical link control 869LLD low-level design 870LLDD low-level design document 871LLDP link layer discovery protocol 872LLF low level format 873LLMNR link-local multicast name resolution 874LLVM Low Level Virtual Machine 875LM long mode 876LMCE local machine check exception 877LMI local management interface 878LMM link management mode 879LMP link management protocol 880LNO loop nest optimization 881LOC lines of code 882LOM lights-out management 883LPE Linux performance events 884LPC low pin count 885LPS local positioning system 886LRC longitudinal redundancy check 887LRM left-to-right mark 888LRO left-to-right override 889LRU least recently used 890LS link state 891LSAN Leak Sanitizer 892LSB Linux standards base 893LSB least significant {bit,byte} 894LSI large scale integration 895LSL load segment limit 896LSM log structured merge 897LSN Large Scale NAT 898LSN log sequence number 899LSO large send offload 900LSR label switch router 901LTCC low temperature co-fired ceramic 902LTO linear tape-open 903LTO link time optimization 904LTR left to right 905LTR load task register 906LTR letter(-sized paper) 907LTS long term support 908LUA Lua Uppercase Accident 909LUN logical unit number 910LV logical volume 911LVM logical volume management 912LVT local vector table 913LVDS Low-Voltage Differential Signaling 914LWP light-weight process 915LZSS Lempel Ziv Storer Szymanski 916LZW Lempel Ziv Welch 917MAB MAC authentication bypass 918MAC mandatory access control 919MAC {media,medium} access control 920MAC message authentication {check,code} 921MADT multiple APIC descriptor table 922MAMR microwave-assisted magnetic recording 923MB megabyte 924MBA multi-boot agent 925MBR master boot record 926MBS megabits per second 927MC memory controller 928MCA machine check architecture 929MCA MicroChannel architecture 930MCC multiversion concurrency control 931MCE machine check exception 932MCGA Multi-Color Graphics Array 933MCH memory controller hub 934MCLAG multi-chassis link aggregation group 935MCM multi-chip module 936MCQ memory controlled queue 937MD machine-dependent 938MD-SAL model-driven service abstraction layer 939MDA mail delivery agent 940MDA Monochrome Display Adapter 941MDC Management Data Clock 942MDI Medium Dependent Interface 943MDI-X Medium Dependent Interface Crossover 944MDIO Management Data Input/Output 945MDMX MIPS Digital Media eXtension 946MDRAM multibank dynamic random access memory 947MESI modified, exclusive, shared, invalid 948MFC merge from current 949MFC Microsoft Foundation Classes 950MFM modified frequency modulation 951MFU most frequently used 952MGCP media gateway control protocol 953MHU message handling unit 954MI machine-independent 955MI machine interface 956MIB management information base 957MIC message integrity {check,code} 958MID mobile Internet device 959MIDI musical instrument digital interface 960MIF management information format 961MII media independent interface 962MIM man in the middle 963MIMD multiple instruction, multiple data 964MIME Multipurpose Internet Mail Extensions 965MIMO multiple input multiple output 966MIPS million instructions per second 967MIPS Microprocessor without Interlocked Pipeline Stages 968MISD multiple instruction, single data 969MIT Massachusetts Institute of Technology 970MITM man in the middle 971ML machine language 972ML machine learning 973ML mailing list 974ML markup language 975ML maximum likelihood 976MLAG multi-chassis link aggregation group 977MLC multi-level cell 978MLD multicast listener discovery 979MLHP micro loop heat pipe 980MMF multi-mode fiber 981MMIC monolithic microwave integrated circuit 982MMIO memory mapped input/output 983MMORPG massive multiplayer online role playing game 984MMRP multiple MAC registration protocol 985MMU memory management unit 986MMX matrix math extension 987MMX multimedia extension 988MMX multiple math extension 989MO magneto-optical 990MOESI modified, owned, exclusive, shared, invalid 991MOF maximum operating frequency 992MOSFET metal-oxide-semiconductor field-effect transistor 993MOSI modified, owned, shared, invalid 994MP multi-platform 995MP multiplayer 996MP {multiprocessing,multiprocessor} 997MPEG moving picture experts group 998MPI message passing interface 999MPLS Multiprotocol Label Switching 1000MPP massively parallel processor 1001MPS memory pool system 1002MPS multiprocessor specification 1003MQTT Message Queuing Telemetry Transport 1004MR modem ready 1005MRO method resolution order 1006MRP multiple registration protocol 1007MRU most recently used 1008MS Microsoft 1009MSAN Memory Sanitizer 1010MSB most significant {bit,byte} 1011MSC message sequence chart 1012MSE mean square error 1013MSF minutes seconds frames 1014MSI message signaled interrupt 1015MSI modified, shared, invalid 1016MSR {machine state,model-specific} register 1017MSS maximum segment size 1018MSTP Multiple Spanning Tree Protocol 1019MT machine translation 1020MTA mail transfer agent 1021MTBF mean time between failures 1022MTP media transfer protocol 1023MTRR memory type range register 1024MTTF mean time to failure 1025MTU maximum transmission unit 1026MUA mail user agent 1027MUD multi-user domain 1028MVCC multiversion concurrency control 1029MVR multicast VLAN registration 1030MVRP multiple VLAN registration protocol 1031MWE module width encoding 1032MX mail exchange 1033NACK negative acknowledgement 1034NAK negative acknowledgement 1035NAN neighbor awareness networking 1036NAN not a number 1037NAPT Network Address Port Translation 1038NAS network attached storage 1039NAT network address translation 1040NAV network allocation vector 1041NC numerical control 1042NC-SI network controller sideband interface 1043NCO numerically-controlled oscillator 1044NCP Network Control Protocol 1045NCSI network connectivity status indicator 1046NCQ native command queuing 1047ND neighbor discovery 1048NDFA nondeterministic finite automaton 1049NDIS network driver interface specification 1050NE numeric error 1051NEWS Network extensible Window System 1052NFA nondeterministic finite automaton 1053NFC near-field communication 1054NFCI no functional change intended 1055NFS network file system 1056NFV network function virtualization 1057NIA next instruction address 1058NIC network information center 1059NIC network interface card 1060NIDS network intrusion detection system 1061NIP network interface protocol 1062NIPS network intrusion prevention system 1063NIS network information service 1064NIST National Institute of Standards and Technology 1065NLS native language support 1066NMI non-maskable interrupt 1067NNTP Network News Transfer Protocol 1068NOC network operations center 1069NOP no operation 1070NOS network operating system 1071NP nondeterministic polynomial time 1072NRND not recommended for new designs 1073NRZ non-return to zero 1074NSA nation-state adversary 1075NSA no such agency 1076NSA National Security Agency 1077NTM non-deterministic Turing machine 1078NTP Network Time Protocol 1079NUMA non-uniform memory access 1080NURBS non-uniform rational basis spline 1081NVMM NetBSD Virtual Machine Monitor 1082NVMM non-volatile main memory 1083NVRAM non-volatile random access memory 1084NW not write-through 1085NX no execute 1086OAEP optimal asymmetric encryption padding 1087OAM operations, administration, and {management,maintenance} 1088OBO off by one 1089OBOE off by one error 1090OCL object constraint language 1091OCR optical character recognition 1092ODE offline device environment 1093ODI open data-link interface 1094ODM object data manager 1095ODCM on-demand clock modulation 1096ODT on-die termination 1097OEM original equipment manufacturer 1098OFB output feedback 1099OFDM orthogonal frequency division multiplexing 1100OFET organic field-effect transistor 1101OLAP online analytical processing 1102OLE object linking and embedding 1103OLTP online transaction processing 1104ONFI open nand flash interface 1105OO OpenOffice 1106OO object oriented 1107OOB out of band 1108OOE out of order execution 1109OOM out of memory 1110OOO OpenOffice.org 1111OOP object oriented programming 1112OOPS object oriented programming systems 1113OOSE object oriented software engineering 1114OPM operations per minute 1115OPS operations per second 1116OQL Object Query Language 1117ORB object request broker 1118ORM object-relational mapping 1119OS operating system 1120OSD object-based storage device 1121OSD open source definition 1122OSF open software foundation 1123OSI Open Source Initiative 1124OSI open systems interconnection 1125OSPF open shortest path first 1126OSPM OS power management 1127OSS open sound system 1128OSS open source software 1129OSVW operating system visible workarounds 1130OTP one time password 1131OTP open telecom platform 1132OU organizational unit 1133OUI organizationally unique identifier 1134OWASP Open Web Application Security Project 1135OWL Web Ontology Language 1136P2P PCI to PCI 1137P2P peer to peer 1138PA phase accumulator 1139PA physical address 1140PAAS platform as a service 1141PAC phase-amplitude converter 1142PAE physical address extension 1143PAGP port aggregation protocol 1144PAL phase alternating line 1145PAL programmable array logic 1146PAM pluggable authentication modules 1147PAM pulse amplitude modulation 1148PAP password authentication protocol 1149PAT page attribute table 1150PAT port address translation 1151PATA parallel ATA 1152PAX portable archive exchange 1153PBE pending break encoding 1154PBE programming by example 1155PC personal computer 1156PC program counter 1157PCB printed circuit board 1158PCB process control block 1159PCB Protocol Control Block 1160PCBC propagating cipher block chaining 1161PCC Portable C Compiler 1162PCD page-level cache disable 1163PCE path computation element 1164PCE performance-monitor counter enable 1165PCEP Path Computation Element Protocol 1166PCH platform controller hub 1167PCI peripheral component interconnect 1168PCM phase change memory 1169PCM pulse code modulation 1170PCMCIA Personal Computer Memory Card International Association 1171PCP Port Control Protocol 1172PD public domain 1173PDA personal digital assistant 1174PDA pushdown automaton 1175PDAG propositional directed acyclic graph 1176PDB power distribution board 1177PDF portable document format 1178PDM pulse-duration modulation 1179PDN pull-down network 1180PDP page {descriptor,directory} page 1181PDS product data sheet 1182PDU protocol data unit 1183PE protection enable 1184PE provider edge 1185PEAP Protected EAP 1186PECI platform environment control interface 1187PEP protocol extension protocol 1188PER packed encoding rules 1189PFS perfect forward secrecy 1190PGAS partitioned global address space 1191PGE page global enable 1192PGP Pretty Good Privacy 1193PHB PCI host bridge 1194PHP PHP: Hypertext Preprocessor 1195PIC performance instrumentation counters 1196PIC position independent code 1197PIC programmable interrupt controller 1198PICNIC problem in chair, not in computer 1199PID process id 1200PIE position independent executable 1201PIL Priority Interrupt Level 1202PIM personal information manager 1203PIM platform-independent model 1204PIO programmed input/output 1205PIPT physically indexed, physically tagged 1206PIQ prefetch input queue 1207PIT programmable interrupt timer 1208PIV personal identity verification 1209PIX Private Internet eXchange 1210PKCS public-key cryptography standards 1211PKI public key infrastructure 1212PLC programmable logic controller 1213PLD programmable logic device 1214PLL phase locked loop 1215PLRU pseudo LRU 1216PLTM package level thermal management 1217PM power management 1218PM {phase,pulse} modulation 1219PMC performance monitoring counters 1220PME power management event 1221PMEG page map entry group 1222PMI performance monitoring infrastructure 1223PMI platform management interrupt 1224PMIC power management integrated circut 1225PMIO port-mapped input/output 1226PMT photo-multiplier tube 1227PMU performance monitoring units 1228PMU power management unit 1229PNG portable network graphics 1230PNP plug and play 1231POE power over ethernet 1232POF probability of failure 1233POP Post Office Protocol 1234POP power on password 1235POR plan of record 1236POSIX Portable Operating System Interface [for Unix] 1237POST power on self test 1238POTS plain old telephone system 1239POWER Performance Optimization With Enhanced RISC 1240POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1241PP pair programming 1242PPB PCI [to] PCI bridge 1243PPC PowerPC 1244PPC Power Performance Computing 1245PPI pixels per inch 1246PPM pages per minute 1247PPP Point-to-Point Protocol 1248PPPOA Point-to-Point Protocol over ATM 1249PPPOE Point-to-Point Protocol over Ethernet 1250PPR processor programming reference 1251PPT powerpoint 1252PPT punched paper tape 1253PPU physics processing unit 1254PRAM Parameter RAM 1255PRBS pseudorandom bit sequence 1256PRG pseudorandom generator 1257PRF pseudorandom function [family] 1258PRML partial response, maximum likelihood 1259PRN pseudorandom {noise,number} 1260PRNG pseudorandom number generator 1261PROM programmable read only memory 1262PRP pseudorandom permutation 1263PRU Programmable Realtime Unit 1264PS PostScript 1265PSD power spectral density 1266PSE page size extensions 1267PSK phase shift keying 1268PSK pre-shared key 1269PSTN public switched telephone network 1270PSW program status word 1271PTE page table entry 1272PTLA pseudo top level aggregator 1273PTP page table page 1274PTV perceived target value 1275PU processing unit 1276PUC personal unblocking code 1277PUN physical unit number 1278PV physical volume 1279PVC permanent virtual circuit 1280PVG physical volume group 1281PVI protected-mode virtual interrupt 1282PVRST Per-VLAN rapid spanning tree 1283PVST Per-VLAN Spanning Tree 1284PWM pulse width modulation 1285PXE preboot execution environment 1286QA quality assurance 1287QAM quadrature amplitude modulation 1288QAM quality assurance management 1289QBE query by example 1290QC quality control 1291QDI quasi delay insensitive 1292QCIF quarter common intermediate format 1293QOI quality of implementation 1294QOI quick order interface 1295QOS quality of service 1296QVL qualified vendor list 1297R/O read only 1298R/W read/write 1299RA receiver address 1300RA remote assistance 1301RA resource affinity 1302RA router advertisement 1303RAD rapid application development 1304RADIUS remote authentication dial-in user service 1305RAID redundant array of {independent,inexpensive} disks 1306RAM random access memory 1307RAS reliability, availability and serviceability 1308RAS remote access service 1309RAS restartable atomic sequence 1310RAS row address strobe 1311RBF radial basis function 1312RBNF routing backus-naur form 1313RBT red-black tree 1314RC release candidate 1315RC remote control 1316RC run commands 1317RCS Revision Control System 1318RCS revision control system 1319RCU read, copy, update 1320RDB Rigid Disk Block 1321RDBMS relational database management system 1322RDF Resource Description Framework 1323RDM relational data model 1324RDMA remote direct memory access 1325RDP remote desktop protocol 1326RDRAM Rambus DRAM 1327RE regular expression 1328REPL read, evaluate, print, loop 1329REST representational state transfer 1330RF radio frequency 1331RFB remote frame buffer 1332RFI radio frequency interference 1333RFO request for ownership 1334RFU reserved for future use 1335RGB red green blue 1336RGBA red green blue alpha 1337RGMII reduced gigabit media independent interface 1338RH read hit 1339RHEL Red Hat Enterprise Linux 1340RHL Red Hat Linux 1341RIB routing information base 1342RIFF Resource Interchange File Format 1343RIP Raster Image Processor 1344RIP Routing Information Protocol 1345RIR regional Internet registry 1346RISC reduced instruction set {computer,computing} 1347RKM ROM Kernel Manual 1348RLE run length encoding 1349RLL run length limited 1350RLO right-to-left override 1351RM read miss 1352RMCP Remote Management Control Protocol 1353RMI remote method invocation 1354RMO Relaxed Memory Ordering 1355RMPM rapid memory power management 1356RMS root mean square 1357RMW read, modify, write 1358RNG random number generator 1359ROM read only memory 1360RPC remote procedure call 1361RPKI resource PKI 1362RPL requested privilege level 1363RPM revolutions per minute 1364RPN reverse Polish notation 1365RPVST Rapid Per-VLAN Spanning Tree 1366RR random replacement 1367RR round robin 1368RS relay station 1369RSA Rivest, Shamir, [and] Adleman 1370RSIP Realm Specific IP 1371RSN Robust Secure Network 1372RSS really simple syndication 1373RSS residual sum of squares 1374RSTP Rapid Spanning Tree Protocol 1375RT real time 1376RTC real time clock 1377RTC real time computing 1378RTF rich text format 1379RTL register transfer language 1380RTL resistor-transistor logic 1381RTL right to left 1382RTOS real time operating system 1383RTS request to send 1384RTT round trip time 1385RUP rational unified process 1386RW Rabin-Williams 1387RWM read-write memory 1388RX {receive,receiver} 1389S/PDIF Sony/Philips Digital Interface Format 1390SA security advisory 1391SA security association 1392SA source address 1393SA structured analysis 1394SAAS software as a service 1395SABRE Semi-automated business research environment 1396SACD super audio compact disc 1397SAD security association database 1398SAF-TE SCSI accessed fault-tolerant enclosure 1399SAGE Semi-automated ground environment 1400SAL {service,system} abstraction layer 1401SAM serial access memory 1402SAM sum addressed memory 1403SAML security assertion markup language 1404SAN storage area network 1405SAP service access point 1406SAPIC streamlined advanced programmable interrupt controller 1407SASD structured analysis, structured design 1408SASI Shugart Associates System Interface 1409SASL simple authentication [and] security layer 1410SATA serial advanced technology attachment 1411SAX simple API for XML 1412SB sound blaster 1413SBSA server base system architecture 1414SBU standard build unit 1415SC store conditional 1416SCA source code analyzer 1417SCADA supervisory control and data acquisition 1418SCC single chip cloud 1419SCC source code control 1420SCCP skinny call control protocol 1421SCCS Source Code Control System 1422SCI scalable coherent interface 1423SCI system control interrupt 1424SCIM smart common input method 1425SCM software configuration management 1426SCM source code management 1427SCM storage-class memory 1428SCO synchronous connection orientated 1429SCP secure copy 1430SCP system control processor 1431SCPI system control and power interface 1432SCSI Small Computer System Interface 1433SCTP Stream Control Transmission Protocol 1434SDDC software defined data center 1435SDEI software delegated exception interface 1436SDI symbol deinterleave 1437SDK software development kit 1438SDL Simple Declarative Language 1439SDL Simple Direct-media Layer 1440SDLC {software,system,systems} development life cycle 1441SDN software defined networking 1442SDP Session Description Protocol 1443SDR software defined radio 1444SDRAM synchronous dynamic random access memory 1445SDS software defined storage 1446SDT syntax-directed translation 1447SEA synchronous external abort 1448SEGV segmentation violation 1449SED self-encrypting drive 1450SED stream editor 1451SEMB serial ATA enclosure management bridge 1452SEO search engine optimization 1453SES SCSI enclosure services 1454SFC sequential function chart 1455SFI simple firmware interface 1456SFI software fault isolation 1457SFTP SSH File Transfer Protocol 1458SFTP Serial File Transfer Protocol 1459SFTP Simple File Transfer Protocol 1460SGI Silicon Graphics, Inc 1461SGI software generated interrupt 1462SGMII serial gigabit media independent interface 1463SGPIO serial general purpose input/output 1464SGRAM synchronous graphics random access memory 1465SHA secure hash algorithm 1466SICP structure and interpretation of computer programs 1467SIDH supersingular isogeny Diffie-Hellman 1468SIEM security information and event management 1469SIF source input format 1470SIFS short inter-frame space 1471SIM subscriber identity module 1472SIMD single instruction, multiple data 1473SIMM single inline memory module 1474SIP Session Initiation Protocol 1475SIR signal-to-interference ratio 1476SIR slow infrared 1477SISD single instruction, single data 1478SLAAC stateless address auto-configuration 1479SLC single-level cell 1480SLDRAM synchronous-link dynamic random access memory 1481SLED single large expensive disk 1482SLI scalable link interface 1483SLI scan-line interleave 1484SLIC system license internal code 1485SLOC source lines of code 1486SLRU segmented LRU 1487SMA smart memory access 1488SMAF system management action field 1489SMAP Simple Mail Access Protocol 1490SMAP supervisor mode access prevention 1491SMART self-monitoring analysis and reporting technology 1492SMB Server Message Block 1493SMB system management bus 1494SMBIOS System Management BIOS 1495SMC system management controller 1496SMD storage module device 1497SMEP supervisor mode execution protection 1498SMF single mode fiber 1499SMI structure of management information 1500SMI system management interrupt 1501SMM system management mode 1502SMP serial management protocol 1503SMP symmetric multiprocessing 1504SMT simultaneous multithreading 1505SMTP Simple Mail Transfer Protocol 1506SMU system management unit 1507SNA systems network architecture 1508SNAP Sub-Network Access Protocol 1509SNIA Storage Networking Industry Association 1510SNMP Simple Network Management Protocol 1511SNR signal-to-noise ratio 1512SOA service oriented architecture 1513SOAP Simple Object Access Protocol 1514SOC system on chip 1515SOF start of frame 1516SOH start of header 1517SOHO small office/home office 1518SOL serial over LAN 1519SOM system on module 1520SP service pack 1521SP stack pointer 1522SPA storage pool allocator 1523SPAN switched port analyzer 1524SPARC scalable processor architecture 1525SPARQL SPARQL Protocol and RDF Query Language 1526SPD security policy database 1527SPD serial presence detect 1528SPDIF Sony/Philips digital interface format 1529SPI serial peripheral interface 1530SPI stateful packet inspection 1531SPL system interrupt priority level 1532SPL spinlock 1533SPMD single process, multiple data 1534SPR special purpose register 1535SPT sectors per track 1536SQA software quality assurance 1537SQCIF sub quarter common intermediate format 1538SQL Structured Query Language 1539SRAM static random access memory 1540SRC sample rate conversion 1541SRP SCSI RDMA protocol 1542SRR shaped round robin 1543SS self-snoop 1544SS stack segment 1545SSA static single assignment 1546SSAP source service access point 1547SSB single-sideband modulation 1548SSC spread spectrum clock 1549SSD solid state drive 1550SSE streaming SIMD extensions 1551SSFDC solid state floppy disc card 1552SSH secure shell 1553SSI server side includes 1554SSID service set identifier 1555SSTP secure socket tunneling protocol 1556SSL secure sockets layer 1557SSP stack smashing protection 1558STC software thermal control 1559STD state transition diagram 1560STM software transactional memory 1561STOMP Streaming Text Oriented Messaging Protocol 1562STP Spanning Tree Protocol 1563STP shielded twisted pair 1564STRG spanning tree root guard 1565SUN Stanford University Network 1566SUS Single Unix Specification 1567SUT system under test 1568SVC switched virtual circuit 1569SVG scalable vector graphics 1570SVGA Super Video Graphics Array 1571SVI {switch,switched} virtual interface 1572SVM secure virtual machine 1573SVM support vector machine 1574SVR System V Release 1575SVS Separate Virtual Space 1576SWF Shockwave Flash 1577SWIG simplified wrapper [and] interface generator 1578SYR symbol timing recovery 1579TA test assertion 1580TA transmitter address 1581TACACS terminal access controller access-control system 1582TAI international atomic time 1583TAO track at once 1584TAOCP The Art of Computer Programming 1585TAP Test Anything Protocol 1586TAS test and set 1587TB terabyte 1588TBNF transitional backus-naur form 1589TCB trace capture buffer 1590TCB trusted computing base 1591TCC thermal control circuit 1592TCL tool command language 1593TCP Transmission Control Protocol 1594TCQ tagged command queueing 1595TDC time [to] digital converter 1596TDD test-driven development 1597TDD time division duplex 1598TDM time division multiplexing 1599TDMA time division multiple access 1600TDOA time difference of arrival 1601TDP thermal design {point,power} 1602TDR time-domain reflectometry 1603TECO Text Editor and Corrector 1604TFT thin film transistor 1605TFTP Trivial File Transfer Protocol 1606TIAS try it and see 1607TIFF tagged image file format 1608TITS try it to see 1609TK temporal key 1610TKIP Temporal Key Integrity Protocol 1611TLA top level aggregator 1612TLB translation lookaside buffer 1613TLD top level domain 1614TLER time-limited error recovery 1615TLI transport layer interface 1616TLS thread local storage 1617TLS transport layer security 1618TM Turing machine 1619TM thermal monitor 1620TMG transmogrifier 1621TMDS transition minimized differential signaling 1622TMO timeout 1623TOD time of day 1624TOFU trust on first use 1625TOS terms of service 1626TOS trusted operating system 1627TOS type of service 1628TP transaction processing 1629TPI tracks per inch 1630TPM transactions per minute 1631TPM trusted platform module 1632TPR task priority register 1633TPS transactions per second 1634TPS transmission parameters signaling 1635TR task register 1636TR token ring 1637TRL timing recovery loop 1638TRNG true random number generator 1639TS terminal services 1640TS time series 1641TS time stamp 1642TS transport stream 1643TSAN Thread Sanitizer 1644TSC time stamp counter 1645TSD time stamp disable 1646TSDB time series database 1647TSL test, set, lock 1648TSO time sharing option 1649TSO Total Store Ordering 1650TSP Time-Stamp Protocol 1651TSP Tunnel Setup Protocol 1652TSP time synchronization protocol 1653TSP traveling salesman problem 1654TSS task state segment 1655TSV tab-separated values 1656TTL time to live 1657TTL transistor-transistor logic 1658TTM translation table maps 1659TTY teletype 1660TUI {terminal,text-based,textual} user interface 1661TX {transmit out,transmitter} 1662TXG transaction group 1663TZ time zone 1664UAC user {access,account} control 1665UAF use-after-free 1666UART universal asynchronous receiver/transmitter 1667UAT user acceptance testing 1668UB undefined behavior 1669UBSAN Undefined Behavior Sanitizer 1670UC uncacheable 1671UCS uniform-cost search 1672UCS unified computing system 1673UCS universal coded character set 1674UDI uniform driver interface 1675UDMA ultra DMA 1676UDO ultra density optical 1677UDP User Datagram Protocol 1678UEFI unified extensible firmware interface 1679UFS Unix File System 1680UGA universal graphics adapter 1681UI unit interval 1682UI user interface 1683UICC universal integrated circuit card 1684UID unique identifier 1685UID user identifier 1686UL upload 1687UMA uniform memory access 1688UMA upper memory area 1689UMB upper memory block 1690UML unified modeling language 1691UMPC ultra-mobile PC 1692UPNP universal plug and play 1693UPS uninterruptible power supply 1694URI uniform resource identifier 1695URL uniform resource locator 1696URN uniform resource name 1697USART universal synchronous/asynchronous receiver/transmitter 1698USB universal serial bus 1699USWC uncacheable speculative write combining 1700UT unit test 1701UTC coordinated universal time 1702UTF unicode transformation formats 1703UTP unshielded twisted pair 1704UTS UNIX time-sharing 1705UUCP Unix-to-Unix Copy Protocol 1706UUID universally unique identifier 1707UUOC useless use of cat 1708UUT unit under test 1709UX user experience 1710VA vertical alignment 1711VA virtual address 1712VA volt-ampere 1713VAX virtual address extension 1714VB Visual Basic 1715VCA variable-gain amplifier 1716VCC common collector voltage 1717VCCP virtual chassis control protocol 1718VCF voltage-controlled filter 1719VCM virtual channel memory 1720VCO voltage-controlled oscillator 1721VCP virtual chassis port 1722VCS version control system 1723VDPAU Video Decode and Presentation API for Unix 1724VES virtual execution system 1725VESA Video Electronics Standards Association 1726VFO variable-frequency oscillator 1727VFS virtual file system 1728VG volume group 1729VGA Video Graphics Array 1730VHDCI very high density cable interconnect 1731VID {VLAN,voltage level} identifier 1732VIM Vi IMproved 1733VIPT virtually indexed, physically tagged 1734VIVT virtually indexed, virtually tagged 1735VLAN virtual local area network 1736VLD variable-length decoding 1737VLIW very long instruction word 1738VLSI very large scale integration 1739VLSM variable length subnet mask 1740VM virtual {machine,memory} 1741VME virtual mode extension 1742VMX vector multimedia extensions 1743VMX virtual machine extensions 1744VNC virtual network computing 1745VOD video on demand 1746VPD vital product data 1747VPN virtual private network 1748VPWS virtual private wire service 1749VR virtual reality 1750VRAM video random access memory 1751VRF virtual routing and forwarding 1752VRM voltage regulator module 1753VROC Virtual RAID On CPU 1754VRRP Virtual Router Redundancy Protocol 1755VSTP VLAN Spanning Tree Protocol 1756VTP VLAN Trunking Protocol 1757VXFS Veritas file system 1758VXVM Veritas volume manager 1759W watt 1760W3C World Wide Web Consortium 1761WAFL write anywhere file layout 1762WAMP Web Application Messaging Protocol 1763WAN wide area network 1764WAP Wireless Application Protocol 1765WAP wireless access point 1766WDM Windows Driver Model 1767WDDM Windows Display Driver Model 1768WDT watchdog timer 1769WEP Wired Equivalent Privacy 1770WFI wait for interrupt 1771WFQ weighted fair queuing 1772WH write hit 1773WHEA Windows hardware error architecture 1774WIFI wireless fidelity 1775WLAN wireless local area network 1776WM write miss 1777WMF Windows meta file 1778WMI Windows Management Instrumentation 1779WOL Wake-on-LAN 1780WOM Wake-on-Modem 1781WOR Wake-on-Ring 1782WORM write once read many 1783WP WordPerfect 1784WP word processor 1785WP write protect 1786WPA Wi-Fi Protected Access 1787WPA2 Wi-Fi Protected Access II 1788WPAD web proxy auto-discovery protocol 1789WPS Wi-Fi Protected Setup 1790WRAM window random access memory 1791WS web services 1792WTC write through caching 1793WTD weighted tail drop 1794WWAN wireless wide area network 1795WWW world wide web 1796WYSIAYG what you see is all you get 1797WYSIWYG what you see is what you get 1798XBAR crossbar 1799XDMCP X Display Manager control protocol 1800XER XML encoding rules 1801XGA Extended Graphics Array 1802XHR XMLHttpRequest 1803XIP execute in place 1804XML Extensible Markup Language 1805XNA XNA's not acronymed 1806XNS Xerox network systems 1807XOR exclusive or 1808XP extreme programming 1809XSI X/Open System Interface 1810XSL extensible stylesheet language 1811XSLT extensible stylesheet language transformations 1812XSS cross site scripting 1813XT extended technology 1814XTACACS extended terminal access controller access-control system 1815XTI X/Open transport interface 1816XUL XML user interface language 1817YACC yet another compiler compiler 1818YAML YAML ain't markup language 1819YANG yet another next generation 1820YAWPFAPR you are welcome; please file a problem report 1821YP Yellow Pages 1822YTD year to date 1823ZAP ZFS attribute processor 1824ZBR zone bit recording 1825ZFOD zero-filled on demand 1826ZFS zettabyte file system 1827ZIF zero insertion force 1828ZIFS zero insertion force socket 1829ZIL ZFS intent log 1830ZMA zone multicast address 1831ZOI zero one infinity 1832ZOI zone of influence 1833ZPL ZFS Posix layer 1834ZVOL ZFS Volume 1835