acronyms.comp revision 1.314
1$NetBSD: acronyms.comp,v 1.314 2020/10/18 10:17:09 leot 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 1157PBR partition boot record 1158PC personal computer 1159PC program counter 1160PCB printed circuit board 1161PCB process control block 1162PCB Protocol Control Block 1163PCBC propagating cipher block chaining 1164PCC Portable C Compiler 1165PCD page-level cache disable 1166PCE path computation element 1167PCE performance-monitor counter enable 1168PCEP Path Computation Element Protocol 1169PCH platform controller hub 1170PCI peripheral component interconnect 1171PCM phase change memory 1172PCM pulse code modulation 1173PCMCIA Personal Computer Memory Card International Association 1174PCP Port Control Protocol 1175PD public domain 1176PDA personal digital assistant 1177PDA pushdown automaton 1178PDAG propositional directed acyclic graph 1179PDB power distribution board 1180PDF portable document format 1181PDM pulse-duration modulation 1182PDN pull-down network 1183PDP page {descriptor,directory} page 1184PDS product data sheet 1185PDU protocol data unit 1186PE protection enable 1187PE provider edge 1188PEAP Protected EAP 1189PECI platform environment control interface 1190PEP protocol extension protocol 1191PER packed encoding rules 1192PFS perfect forward secrecy 1193PGAS partitioned global address space 1194PGE page global enable 1195PGP Pretty Good Privacy 1196PHB PCI host bridge 1197PHP PHP: Hypertext Preprocessor 1198PIC performance instrumentation counters 1199PIC position independent code 1200PIC programmable interrupt controller 1201PICNIC problem in chair, not in computer 1202PID process id 1203PIE position independent executable 1204PIL Priority Interrupt Level 1205PIM personal information manager 1206PIM platform-independent model 1207PIO programmed input/output 1208PIPT physically indexed, physically tagged 1209PIQ prefetch input queue 1210PIT programmable interrupt timer 1211PIV personal identity verification 1212PIX Private Internet eXchange 1213PKCS public-key cryptography standards 1214PKI public key infrastructure 1215PLC programmable logic controller 1216PLD programmable logic device 1217PLL phase locked loop 1218PLRU pseudo LRU 1219PLTM package level thermal management 1220PM power management 1221PM {phase,pulse} modulation 1222PMC performance monitoring counters 1223PME power management event 1224PMEG page map entry group 1225PMI performance monitoring infrastructure 1226PMI platform management interrupt 1227PMIC power management integrated circut 1228PMIO port-mapped input/output 1229PMT photo-multiplier tube 1230PMU performance monitoring units 1231PMU power management unit 1232PNG portable network graphics 1233PNP plug and play 1234POE power over ethernet 1235POF probability of failure 1236POP Post Office Protocol 1237POP power on password 1238POR plan of record 1239POSIX Portable Operating System Interface [for Unix] 1240POST power on self test 1241POTS plain old telephone system 1242POWER Performance Optimization With Enhanced RISC 1243POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1244PP pair programming 1245PPB PCI [to] PCI bridge 1246PPC PowerPC 1247PPC Power Performance Computing 1248PPI pixels per inch 1249PPM pages per minute 1250PPP Point-to-Point Protocol 1251PPPOA Point-to-Point Protocol over ATM 1252PPPOE Point-to-Point Protocol over Ethernet 1253PPR processor programming reference 1254PPT powerpoint 1255PPT punched paper tape 1256PPU physics processing unit 1257PRAM Parameter RAM 1258PRBS pseudorandom bit sequence 1259PRG pseudorandom generator 1260PRF pseudorandom function [family] 1261PRML partial response, maximum likelihood 1262PRN pseudorandom {noise,number} 1263PRNG pseudorandom number generator 1264PROM programmable read only memory 1265PRP pseudorandom permutation 1266PRU Programmable Realtime Unit 1267PS PostScript 1268PSD power spectral density 1269PSE page size extensions 1270PSK phase shift keying 1271PSK pre-shared key 1272PSTN public switched telephone network 1273PSW program status word 1274PTE page table entry 1275PTLA pseudo top level aggregator 1276PTP page table page 1277PTV perceived target value 1278PU processing unit 1279PUC personal unblocking code 1280PUN physical unit number 1281PV physical volume 1282PVC permanent virtual circuit 1283PVG physical volume group 1284PVI protected-mode virtual interrupt 1285PVRST Per-VLAN rapid spanning tree 1286PVST Per-VLAN Spanning Tree 1287PWM pulse width modulation 1288PXE preboot execution environment 1289QA quality assurance 1290QAM quadrature amplitude modulation 1291QAM quality assurance management 1292QBE query by example 1293QC quality control 1294QDI quasi delay insensitive 1295QCIF quarter common intermediate format 1296QOI quality of implementation 1297QOI quick order interface 1298QOS quality of service 1299QVL qualified vendor list 1300R/O read only 1301R/W read/write 1302RA receiver address 1303RA remote assistance 1304RA resource affinity 1305RA router advertisement 1306RAD rapid application development 1307RADIUS remote authentication dial-in user service 1308RAID redundant array of {independent,inexpensive} disks 1309RAM random access memory 1310RAS reliability, availability and serviceability 1311RAS remote access service 1312RAS restartable atomic sequence 1313RAS row address strobe 1314RBF radial basis function 1315RBNF routing backus-naur form 1316RBT red-black tree 1317RC release candidate 1318RC remote control 1319RC run commands 1320RCS Revision Control System 1321RCS revision control system 1322RCU read, copy, update 1323RDB Rigid Disk Block 1324RDBMS relational database management system 1325RDF Resource Description Framework 1326RDM relational data model 1327RDMA remote direct memory access 1328RDP remote desktop protocol 1329RDRAM Rambus DRAM 1330RE regular expression 1331REPL read, evaluate, print, loop 1332REST representational state transfer 1333RF radio frequency 1334RFB remote frame buffer 1335RFI radio frequency interference 1336RFO request for ownership 1337RFU reserved for future use 1338RGB red green blue 1339RGBA red green blue alpha 1340RGMII reduced gigabit media independent interface 1341RH read hit 1342RHEL Red Hat Enterprise Linux 1343RHL Red Hat Linux 1344RIB routing information base 1345RIFF Resource Interchange File Format 1346RIP Raster Image Processor 1347RIP Routing Information Protocol 1348RIR regional Internet registry 1349RISC reduced instruction set {computer,computing} 1350RKM ROM Kernel Manual 1351RLE run length encoding 1352RLL run length limited 1353RLO right-to-left override 1354RM read miss 1355RMCP Remote Management Control Protocol 1356RMI remote method invocation 1357RMO Relaxed Memory Ordering 1358RMPM rapid memory power management 1359RMS root mean square 1360RMW read, modify, write 1361RNG random number generator 1362ROM read only memory 1363RPC remote procedure call 1364RPKI resource PKI 1365RPL requested privilege level 1366RPM revolutions per minute 1367RPN reverse Polish notation 1368RPVST Rapid Per-VLAN Spanning Tree 1369RR random replacement 1370RR round robin 1371RS relay station 1372RSA Rivest, Shamir, [and] Adleman 1373RSIP Realm Specific IP 1374RSN Robust Secure Network 1375RSS really simple syndication 1376RSS residual sum of squares 1377RSTP Rapid Spanning Tree Protocol 1378RT real time 1379RTC real time clock 1380RTC real time computing 1381RTF rich text format 1382RTL register transfer language 1383RTL resistor-transistor logic 1384RTL right to left 1385RTOS real time operating system 1386RTS request to send 1387RTT round trip time 1388RUP rational unified process 1389RW Rabin-Williams 1390RWM read-write memory 1391RX {receive,receiver} 1392S/PDIF Sony/Philips Digital Interface Format 1393SA security advisory 1394SA security association 1395SA source address 1396SA structured analysis 1397SAAS software as a service 1398SABRE Semi-automated business research environment 1399SACD super audio compact disc 1400SAD security association database 1401SAF-TE SCSI accessed fault-tolerant enclosure 1402SAGE Semi-automated ground environment 1403SAL {service,system} abstraction layer 1404SAM serial access memory 1405SAM sum addressed memory 1406SAML security assertion markup language 1407SAN storage area network 1408SAP service access point 1409SAPIC streamlined advanced programmable interrupt controller 1410SASD structured analysis, structured design 1411SASI Shugart Associates System Interface 1412SASL simple authentication [and] security layer 1413SATA serial advanced technology attachment 1414SAX simple API for XML 1415SB sound blaster 1416SBSA server base system architecture 1417SBU standard build unit 1418SC store conditional 1419SCA source code analyzer 1420SCADA supervisory control and data acquisition 1421SCC single chip cloud 1422SCC source code control 1423SCCP skinny call control protocol 1424SCCS Source Code Control System 1425SCI scalable coherent interface 1426SCI system control interrupt 1427SCIM smart common input method 1428SCM software configuration management 1429SCM source code management 1430SCM storage-class memory 1431SCO synchronous connection orientated 1432SCP secure copy 1433SCP system control processor 1434SCPI system control and power interface 1435SCSI Small Computer System Interface 1436SCTP Stream Control Transmission Protocol 1437SDDC software defined data center 1438SDEI software delegated exception interface 1439SDI symbol deinterleave 1440SDK software development kit 1441SDL Simple Declarative Language 1442SDL Simple Direct-media Layer 1443SDLC {software,system,systems} development life cycle 1444SDN software defined networking 1445SDP Session Description Protocol 1446SDR software defined radio 1447SDRAM synchronous dynamic random access memory 1448SDS software defined storage 1449SDT syntax-directed translation 1450SEA synchronous external abort 1451SEGV segmentation violation 1452SED self-encrypting drive 1453SED stream editor 1454SEMB serial ATA enclosure management bridge 1455SEO search engine optimization 1456SES SCSI enclosure services 1457SFC sequential function chart 1458SFI simple firmware interface 1459SFI software fault isolation 1460SFTP SSH File Transfer Protocol 1461SFTP Serial File Transfer Protocol 1462SFTP Simple File Transfer Protocol 1463SGI Silicon Graphics, Inc 1464SGI software generated interrupt 1465SGMII serial gigabit media independent interface 1466SGPIO serial general purpose input/output 1467SGRAM synchronous graphics random access memory 1468SHA secure hash algorithm 1469SICP structure and interpretation of computer programs 1470SIDH supersingular isogeny Diffie-Hellman 1471SIEM security information and event management 1472SIF source input format 1473SIFS short inter-frame space 1474SIM subscriber identity module 1475SIMD single instruction, multiple data 1476SIMM single inline memory module 1477SIP Session Initiation Protocol 1478SIR signal-to-interference ratio 1479SIR slow infrared 1480SISD single instruction, single data 1481SLAAC stateless address auto-configuration 1482SLC single-level cell 1483SLDRAM synchronous-link dynamic random access memory 1484SLED single large expensive disk 1485SLI scalable link interface 1486SLI scan-line interleave 1487SLIC system license internal code 1488SLOC source lines of code 1489SLRU segmented LRU 1490SMA smart memory access 1491SMAF system management action field 1492SMAP Simple Mail Access Protocol 1493SMAP supervisor mode access prevention 1494SMART self-monitoring analysis and reporting technology 1495SMB Server Message Block 1496SMB system management bus 1497SMBIOS System Management BIOS 1498SMC system management controller 1499SMD storage module device 1500SMEP supervisor mode execution protection 1501SMF single mode fiber 1502SMI structure of management information 1503SMI system management interrupt 1504SMM system management mode 1505SMP serial management protocol 1506SMP symmetric multiprocessing 1507SMT simultaneous multithreading 1508SMTP Simple Mail Transfer Protocol 1509SMU system management unit 1510SNA systems network architecture 1511SNAP Sub-Network Access Protocol 1512SNIA Storage Networking Industry Association 1513SNMP Simple Network Management Protocol 1514SNR signal-to-noise ratio 1515SOA service oriented architecture 1516SOAP Simple Object Access Protocol 1517SOC system on chip 1518SOF start of frame 1519SOH start of header 1520SOHO small office/home office 1521SOL serial over LAN 1522SOM system on module 1523SP service pack 1524SP stack pointer 1525SPA storage pool allocator 1526SPAN switched port analyzer 1527SPARC scalable processor architecture 1528SPARQL SPARQL Protocol and RDF Query Language 1529SPD security policy database 1530SPD serial presence detect 1531SPDIF Sony/Philips digital interface format 1532SPI serial peripheral interface 1533SPI stateful packet inspection 1534SPL system interrupt priority level 1535SPL spinlock 1536SPMD single process, multiple data 1537SPR special purpose register 1538SPT sectors per track 1539SQA software quality assurance 1540SQCIF sub quarter common intermediate format 1541SQL Structured Query Language 1542SRAM static random access memory 1543SRC sample rate conversion 1544SRP SCSI RDMA protocol 1545SRR shaped round robin 1546SS self-snoop 1547SS stack segment 1548SSA static single assignment 1549SSAP source service access point 1550SSB single-sideband modulation 1551SSC spread spectrum clock 1552SSD solid state drive 1553SSE streaming SIMD extensions 1554SSFDC solid state floppy disc card 1555SSH secure shell 1556SSI server side includes 1557SSID service set identifier 1558SSTP secure socket tunneling protocol 1559SSL secure sockets layer 1560SSP stack smashing protection 1561STC software thermal control 1562STD state transition diagram 1563STM software transactional memory 1564STOMP Streaming Text Oriented Messaging Protocol 1565STP Spanning Tree Protocol 1566STP shielded twisted pair 1567STRG spanning tree root guard 1568SUN Stanford University Network 1569SUS Single Unix Specification 1570SUT system under test 1571SVC switched virtual circuit 1572SVG scalable vector graphics 1573SVGA Super Video Graphics Array 1574SVI {switch,switched} virtual interface 1575SVM secure virtual machine 1576SVM support vector machine 1577SVR System V Release 1578SVS Separate Virtual Space 1579SWF Shockwave Flash 1580SWIG simplified wrapper [and] interface generator 1581SYR symbol timing recovery 1582TA test assertion 1583TA transmitter address 1584TACACS terminal access controller access-control system 1585TAI international atomic time 1586TAO track at once 1587TAOCP The Art of Computer Programming 1588TAP Test Anything Protocol 1589TAS test and set 1590TB terabyte 1591TBNF transitional backus-naur form 1592TCB trace capture buffer 1593TCB trusted computing base 1594TCC thermal control circuit 1595TCL tool command language 1596TCP Transmission Control Protocol 1597TCQ tagged command queueing 1598TDC time [to] digital converter 1599TDD test-driven development 1600TDD time division duplex 1601TDM time division multiplexing 1602TDMA time division multiple access 1603TDOA time difference of arrival 1604TDP thermal design {point,power} 1605TDR time-domain reflectometry 1606TECO Text Editor and Corrector 1607TFT thin film transistor 1608TFTP Trivial File Transfer Protocol 1609TIAS try it and see 1610TIFF tagged image file format 1611TITS try it to see 1612TK temporal key 1613TKIP Temporal Key Integrity Protocol 1614TLA top level aggregator 1615TLB translation lookaside buffer 1616TLD top level domain 1617TLER time-limited error recovery 1618TLI transport layer interface 1619TLS thread local storage 1620TLS transport layer security 1621TM Turing machine 1622TM thermal monitor 1623TMG transmogrifier 1624TMDS transition minimized differential signaling 1625TMO timeout 1626TOD time of day 1627TOFU trust on first use 1628TOS terms of service 1629TOS trusted operating system 1630TOS type of service 1631TP transaction processing 1632TPI tracks per inch 1633TPM transactions per minute 1634TPM trusted platform module 1635TPR task priority register 1636TPS transactions per second 1637TPS transmission parameters signaling 1638TR task register 1639TR token ring 1640TRL timing recovery loop 1641TRNG true random number generator 1642TS terminal services 1643TS time series 1644TS time stamp 1645TS transport stream 1646TSAN Thread Sanitizer 1647TSC time stamp counter 1648TSD time stamp disable 1649TSDB time series database 1650TSL test, set, lock 1651TSO time sharing option 1652TSO Total Store Ordering 1653TSP Time-Stamp Protocol 1654TSP Tunnel Setup Protocol 1655TSP time synchronization protocol 1656TSP traveling salesman problem 1657TSS task state segment 1658TSV tab-separated values 1659TTL time to live 1660TTL transistor-transistor logic 1661TTM translation table maps 1662TTY teletype 1663TUI {terminal,text-based,textual} user interface 1664TX {transmit out,transmitter} 1665TXG transaction group 1666TZ time zone 1667UAC user {access,account} control 1668UAF use-after-free 1669UART universal asynchronous receiver/transmitter 1670UAT user acceptance testing 1671UB undefined behavior 1672UBSAN Undefined Behavior Sanitizer 1673UC uncacheable 1674UCS uniform-cost search 1675UCS unified computing system 1676UCS universal coded character set 1677UDI uniform driver interface 1678UDMA ultra DMA 1679UDO ultra density optical 1680UDP User Datagram Protocol 1681UEFI unified extensible firmware interface 1682UFS Unix File System 1683UGA universal graphics adapter 1684UI unit interval 1685UI user interface 1686UICC universal integrated circuit card 1687UID unique identifier 1688UID user identifier 1689UL upload 1690UMA uniform memory access 1691UMA upper memory area 1692UMB upper memory block 1693UML unified modeling language 1694UMPC ultra-mobile PC 1695UPNP universal plug and play 1696UPS uninterruptible power supply 1697URI uniform resource identifier 1698URL uniform resource locator 1699URN uniform resource name 1700USART universal synchronous/asynchronous receiver/transmitter 1701USB universal serial bus 1702USWC uncacheable speculative write combining 1703UT unit test 1704UTC coordinated universal time 1705UTF unicode transformation formats 1706UTP unshielded twisted pair 1707UTS UNIX time-sharing 1708UUCP Unix-to-Unix Copy Protocol 1709UUID universally unique identifier 1710UUOC useless use of cat 1711UUT unit under test 1712UX user experience 1713VA vertical alignment 1714VA virtual address 1715VA volt-ampere 1716VAX virtual address extension 1717VB Visual Basic 1718VBR volume boot record 1719VCA variable-gain amplifier 1720VCC common collector voltage 1721VCCP virtual chassis control protocol 1722VCF voltage-controlled filter 1723VCM virtual channel memory 1724VCO voltage-controlled oscillator 1725VCP virtual chassis port 1726VCS version control system 1727VDPAU Video Decode and Presentation API for Unix 1728VES virtual execution system 1729VESA Video Electronics Standards Association 1730VFO variable-frequency oscillator 1731VFS virtual file system 1732VG volume group 1733VGA Video Graphics Array 1734VHDCI very high density cable interconnect 1735VID {VLAN,voltage level} identifier 1736VIM Vi IMproved 1737VIPT virtually indexed, physically tagged 1738VIVT virtually indexed, virtually tagged 1739VLAN virtual local area network 1740VLD variable-length decoding 1741VLIW very long instruction word 1742VLSI very large scale integration 1743VLSM variable length subnet mask 1744VM virtual {machine,memory} 1745VME virtual mode extension 1746VMX vector multimedia extensions 1747VMX virtual machine extensions 1748VNC virtual network computing 1749VOD video on demand 1750VPD vital product data 1751VPN virtual private network 1752VPWS virtual private wire service 1753VR virtual reality 1754VRAM video random access memory 1755VRF virtual routing and forwarding 1756VRM voltage regulator module 1757VROC Virtual RAID On CPU 1758VRRP Virtual Router Redundancy Protocol 1759VSTP VLAN Spanning Tree Protocol 1760VTP VLAN Trunking Protocol 1761VXFS Veritas file system 1762VXVM Veritas volume manager 1763W watt 1764W3C World Wide Web Consortium 1765WAFL write anywhere file layout 1766WAMP Web Application Messaging Protocol 1767WAN wide area network 1768WAP Wireless Application Protocol 1769WAP wireless access point 1770WDM Windows Driver Model 1771WDDM Windows Display Driver Model 1772WDT watchdog timer 1773WEP Wired Equivalent Privacy 1774WFI wait for interrupt 1775WFQ weighted fair queuing 1776WH write hit 1777WHEA Windows hardware error architecture 1778WIFI wireless fidelity 1779WLAN wireless local area network 1780WM write miss 1781WMF Windows meta file 1782WMI Windows Management Instrumentation 1783WOL Wake-on-LAN 1784WOM Wake-on-Modem 1785WOR Wake-on-Ring 1786WORM write once read many 1787WP WordPerfect 1788WP word processor 1789WP write protect 1790WPA Wi-Fi Protected Access 1791WPA2 Wi-Fi Protected Access II 1792WPAD web proxy auto-discovery protocol 1793WPS Wi-Fi Protected Setup 1794WRAM window random access memory 1795WS web services 1796WTC write through caching 1797WTD weighted tail drop 1798WWAN wireless wide area network 1799WWW world wide web 1800WYSIAYG what you see is all you get 1801WYSIWYG what you see is what you get 1802XBAR crossbar 1803XDMCP X Display Manager control protocol 1804XER XML encoding rules 1805XGA Extended Graphics Array 1806XHR XMLHttpRequest 1807XIP execute in place 1808XML Extensible Markup Language 1809XNA XNA's not acronymed 1810XNS Xerox network systems 1811XOR exclusive or 1812XP extreme programming 1813XSI X/Open System Interface 1814XSL extensible stylesheet language 1815XSLT extensible stylesheet language transformations 1816XSS cross site scripting 1817XT extended technology 1818XTACACS extended terminal access controller access-control system 1819XTI X/Open transport interface 1820XUL XML user interface language 1821YACC yet another compiler compiler 1822YAML YAML ain't markup language 1823YANG yet another next generation 1824YAWPFAPR you are welcome; please file a problem report 1825YP Yellow Pages 1826YTD year to date 1827ZAP ZFS attribute processor 1828ZBR zone bit recording 1829ZFOD zero-filled on demand 1830ZFS zettabyte file system 1831ZIF zero insertion force 1832ZIFS zero insertion force socket 1833ZIL ZFS intent log 1834ZMA zone multicast address 1835ZOI zero one infinity 1836ZOI zone of influence 1837ZPL ZFS Posix layer 1838ZVOL ZFS Volume 1839