acronyms.comp revision 1.311
1$NetBSD: acronyms.comp,v 1.311 2020/08/22 07:24:40 nia Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABI application binary interface 8ABNF augmented backus-naur form 9ABR available bit rate 10ABRT automatic bug reporting tool 11AC alternating current 12ACI adjacent channel interferer 13ACID atomicity, consistency, isolation, durability 14ACK Amsterdam compiler kit 15ACK acknowledgement 16ACL access control list 17ACL active current loop 18ACL asynchronous connection less 19ACP auxiliary control {process,program} 20ACPI advanced configuration and power interface 21ACS access control set 22ACU automatic calling unit 23ADB Apple desktop bus 24ADC analog [to] digital converter 25ADD acronym driven development 26ADDDC adaptive double DRAM device correction 27ADO active data objects 28ADP automatic data processing 29ADPCM adaptive differential pulse code modulation 30ADS alternate data stream 31ADSL asymmetric digital subscriber line 32ADT abstract data type 33AEDC advanced error detection and correction 34AER advanced error reporting 35AES Advanced Encryption Standard 36AFP Apple Filing Protocol 37AFS Andrew File System 38AGC automatic gain control 39AGP accelerated graphics port 40AI analog input 41AI artificial intelligence 42AL access list 43AL active link 44ALE address latch enable 45ALS ambient light sensor 46ALSA advanced Linux sound architecture 47ALU arithmetic and logical unit 48ALUA asymmetric logical unit access 49AM access method 50AM alignment mask 51AM amplitude modulation 52AMD Advanced Micro Devices Inc 53AMDD Agile model-driven development 54AMI alternate mark inversion 55AMP asymmetric multiprocessing 56AMQP advanced message queuing protocol 57AMT active management technology 58AN Arabic number 59ANR application not responding 60ANSI American National Standards Institute 61AO analog output 62AOC add-on card 63AOL Alert-on-LAN 64AOS add or subtract 65AP access point 66AP application processor 67APFS Apple file system 68API application programming interface 69APEI ACPI platform error interface 70APIC advanced programmable interrupt controller 71APIPA automatic private IP addressing 72APM advanced power management 73APM application performance management 74APU accelerated processing unit 75APT advanced persistent threat 76AQM active queue management 77ARAT always running APIC timer 78ARC adaptive replacement cache 79ARC Advanced RISC Computing 80ARC automatic reference counting 81ARM Advanced RISC Machines 82ARP Address Resolution Protocol 83ARPA Advanced Research Projects Agency 84ARQ automatic repeat request 85ARR address range register 86ARU audio response unit 87AS autonomous system 88ASA Adaptive Security Appliance 89ASAN Address Sanitizer 90ASC advanced smart cache 91ASCII American Standard Code for Information Interchange 92ASD agile software development 93ASE advanced software environment 94ASF alert standard format 95ASIC application-specific integrated circuit 96ASK amplitude shift keying 97ASLR address space layout randomization 98ASN autonomous system number 99ASP active server pages 100ASP auxiliary storage pool 101ASPM active state power management 102ASQ automated software quality 103ASR address space register 104ASR Apple software restore 105AST abstract syntax tree 106AST asynchronous system trap 107AT access time 108AT advanced technology 109ATA advanced technology attachment 110ATAPI advanced technology attachment packet interface 111ATC address translation cache 112ATF ARM trusted firmware 113ATF automated testing framework 114ATM asynchronous transfer mode 115ATX advanced technology extended 116AV anti virus 117AVB audio video bridging 118AVL Adelson-Velsky-Landis 119AVX advanced vector extensions 120AWDL Apple wireless direct link 121BA byte align 122BAL basic assembly language 123BAR base address register 124BBS bulletin board system 125BCC blind carbon copy 126BCD binary coded decimal 127BCH boot console handler 128BCR byte count register 129BCS base configuration space 130BD baud 131BDD binary decision diagram 132BDI bit deinterleave 133BDUF big design up front 134BEDO burst extended data output 135BER basic encoding rules 136BER bit error {rate,ratio} 137BERT boot error record table 138BFD bidirectional forwarding detection 139BFD binary {file,format} descriptor 140BFKL big fscking kernel lock 141BFS breadth-first search 142BFT binary file transfer 143BGA ball grid array 144BGP Border Gateway Protocol 145BGPSEC BGP Security 146BIND Berkeley Internet Name Daemon 147BIOS Basic Input/Output System 148BIOS built-in operating system 149BIST built-in self-test 150BIU bus interface unit 151BKDG BIOS and kernel developer's guide 152BLAS basic linear algebra subprograms 153BLC back light control 154BLE Bluetooth low energy 155BLOB binary large object 156BM bus master 157BMC baseboard management controller 158BMP basic multilingual plane 159BMP bitmap image file 160BMIC bus master interface controller 161BN boundary neutral 162BNF Backus-Naur form 163BO binary output 164BOF beginning of file 165BOM beginning of message 166BOM byte order mark 167BP base pointer 168BP boot processor 169BPB BIOS parameter block 170BPDU bridge protocol data unit 171BPF Berkeley Packet Filter 172BPI bits per inch 173BPM business process modelling 174BPS bits per second 175BPSK binary phase shift keying 176BQS Berkeley quality software 177BRE basic regular expression 178BS backspace 179BS binary sequence 180BSA basic service area 181BSD Berkeley Software Distribution 182BSDP Boot Service Discovery Protocol 183BSF bit scan forward 184BSOD blue screen of death 185BSP binary space partition 186BSP board support package 187BSP bootstrap processor 188BSR bit scan reverse 189BSS basic service set 190BSS block started by symbol 191BSSID basic service set identifier 192BT BitTorrent 193BT Bluetooth 194BT bit test 195BTC bit test [and] complement 196BTM bus transport mechanism 197BTR bit test [and] reset 198BTS bit test [and] set 199BTS bug tracking system 200BW bandwidth 201BWM block-write mode 202BUAG big ugly ASCII graphic 203CA certificate authority 204CACLS change access control lists 205CAD computer-aided design 206CAM computer assisted manufacturing 207CAM conditional access module 208CAM content addressable memory 209CARP Common Address Redundancy Protocol 210CAS column address strobe 211CAS compare and swap 212CAS computer algebra system 213CASE computer aided software engineering 214CAU control access unit 215CAV constant angular velocity 216CBC cipher block chaining 217CBR constant bit rate 218CC carbon copy 219CCC Chaos Computer Club 220CCD charge coupled device 221CCI co-channel interferer 222CCNUMA cache-coherent non-uniform memory access 223CCTL command completion time limit 224CD cache disable 225CD compact disc 226CDDA compact disc digital audio 227CDL compiler description language 228CDMA code division multiple access 229CDP Cisco Discovery Protocol 230CDRAM cache dynamic random access memory 231CER canonical encoding rules 232CE customer edge 233CF compact flash 234CFB cipher feedback 235CFG context-free grammar 236CFG control-flow graph 237CFI control-flow integrity sanitizer 238CG control gate 239CGA Color Graphics Adapter 240CGI common gateway interface 241CGN Carrier-Grade NAT 242CHAP Challenge-Handshake Authentication Protocol 243CHFS chip file system 244CHS cylinder/head/sector 245CI continuous integration 246CI {common,component} interface 247CIA confidentiality, integrity, availability 248CIDR Classless Inter-Domain Routing 249CIF common intermediate format 250CIFS Common Internet File System 251CIL common intermediate language 252CIR carrier-to-interference ratio 253CIS contact image sensor 254CISC complex instruction set {computer,computing} 255CJK Chinese, Japanese, [and] Korean 256CLF common log format 257CLI command line interface 258CLI common language infrastructure 259CLR common language runtime 260CLS common language specification 261CLTT closed loop thermal throttling 262CLUT color look-up table 263CLV constant linear velocity 264CM configuration management 265CMA concert multithread architecture 266CMC chassis management controller 267CMC corrected machine check 268CMS {configuration,content,course} management system 269CMI control {management,method} interface 270CMOS complementary metal-oxide-semiconductor 271CMP chip multi-processing 272CMS content management system 273CMYK cyan magenta yellow black 274CN {common,canonical} name 275CNC computer numerical control 276CNR carrier-to-noise ratio 277COA change of authority 278COF current operating frequency 279COFDM coded orthogonal frequency division multiplexing 280COFF common object file format 281COM component object model 282COM computer on module 283COMA cache-only memory architecture 284CORBA common object request broker architecture 285COS class of service 286COW copy-on-write 287CP continuous pilot 288CPA chosen-plaintext attack 289CPB core performance boost 290CPC central processor complex 291CPC cpu performance counters 292CPE common phase error 293CPE common platform enumeration 294CPER common platform error record 295CPG clock pulse generator 296CPI cycles per instruction 297CPL current privilege level 298CPLD complex programmable logic device 299CPP C preprocessor 300CPS characters per second 301CPS continuation-passing style 302CPT command pass through 303CPU central processing unit 304CR carriage return 305CRC cyclic redundancy check 306CRL carrier recovery loop 307CRLF carriage return line feed 308CSU C start up 309CRT cathode ray tube 310CRUD create, read, update, and delete 311CS cable select 312CS chip select 313CS code segment 314CS computer science 315CSDL {common,conceptual} schema definition language 316CSI channel state information 317CSI common system interface 318CSMA carrier sense multiple access 319CSMA/CA carrier sense multiple access with collision avoidance 320CSMA/CD carrier sense multiple access with collision detection 321CSP communicating sequential processes 322CSP content security policy 323CSP constrain satisfaction problems 324CSP cryptographic service provider 325CSR control [and] status registers 326CSRG Computer Systems Research Group 327CSS cascading style sheets 328CST common spanning tree 329CSV comma-separated values 330CTF compact c type format 331CTM close to metal 332CTR counter [mode] 333CTS clear to send 334CTS common type system 335CUA common user access 336CUT coordinated universal time 337CV control voltage 338CVE common vulnerabilities and exposures 339CVS Concurrent Versions System 340DA destination address 341DAA distributed application architecture 342DAAP digital audio access protocol 343DAB digital audio broadcasting 344DAC digital [to] analog converter 345DAC discretionary access control 346DAD duplicate address detection 347DANE DNS-based Authentication of Named Entities 348DAO disk at once 349DAP Directory Access Protocol 350DAT digital audio tape 351DAT dynamic acceleration technology 352DB database 353DBA database administrator 354DBA dynamic bandwidth allocation 355DBB data bus buffer 356DBC design by contract 357DBL dynamic buffer limiting 358DBMS database management system 359DBS database server 360DC direct current 361DCC Direct Client-to-Client 362DCC direct cable connect 363DCD data carrier detect 364DCE data control equipment 365DCE distributed computing environment 366DCIM data center infrastructure management 367DCIM digital camera images 368DCL Digital Command Language 369DCOM distributed component object model 370DCOP Desktop COmmunication Protocol 371DCS data collection systems 372DCT discrete cosine transform 373DCU data cache unit 374DDC display data channel 375DDE dynamic data exchange 376DDI device drivers interface 377DDK device driver kit 378DDL data description language 379DDR double data rate 380DDS direct digital sound 381DDWG Digital Display Working Group 382DE debugging extensions 383DE desktop environment 384DEA data encryption algorithm 385DEC Digital Equipment Corporation 386DEK data encryption key 387DEP data execution prevention 388DER distinguished encoding rules 389DES Data Encryption Standard 390DF don't fragment 391DFA deterministic finite automaton 392DFC data flow control 393DFS depth first search 394DFS distributed file system 395DFSAN Data Flow Sanitizer 396DFT diagnostic function test 397DFT discrete Fourier transform 398DGL data generation language 399DGEMM double precision general matrix multiply 400DH Diffie-Hellman 401DHCP Dynamic Host Configuration Protocol 402DIA dedicated Internet access 403DIB device independent bitmap 404DIFS distributed inter-frame space 405DIMM dual inline memory module 406DIRT design in real time 407DKI driver/kernel interface 408DL diode logic 409DL discrete logarithm 410DL download 411DLCI data link connection identifier 412DLE data link escape 413DLL dynamic link library 414DLNA digital living network alliance 415DLP discrete logarithm problem 416DMA direct memory access 417DMI desktop management interface 418DMS document management system 419DMT discrete multitone modulation 420DMU data management layer 421DNARD Digital network appliance reference design 422DND drag and drop 423DNLC directory name lookup cache 424DNS Domain Name System 425DNSSEC DNS Security Extensions 426DOE distributed object environment 427DOF data over fibre 428DOM document object model 429DOS denial of service 430DOS disk operating system 431DP DisplayPort 432DPC deferred procedure call 433DPCM differential pulse code modulation 434DPD dead peer detection 435DPI deep packet inspection 436DPI dots per inch 437DPL descriptor privilege level 438DPS Display PostScript 439DPST display power savings technology 440DRAAS disaster recovery as a service 441DRAM dynamic random access memory 442DRBG deterministic random bit generator 443DRI direct rendering infrastructure 444DRM digital rights management 445DRRS display refresh rate switching 446DS debug store 447DS differentiated services 448DS9000 DeathStation 9000 449DS9K DeathStation 9000 450DSA digital signature algorithm 451DSAP destination service access point 452DSB double-sideband modulation 453DSCP differentiated services code point 454DSDT differentiated system descriptor table 455DSF device special file 456DSL dataset and snapshot layer 457DSL digital subscriber line 458DSL domain specific language 459DSLAM digital subscriber line access multiplexer 460DSN delivery status notification 461DSO dynamic shared object 462DSP digital signal processor 463DSSS direct sequence spread spectrum 464DTB device tree blob 465DTC device tree compiler 466DTD document type definition 467DTE data terminal equipment 468DTE dumb terminal emulator 469DTL diode-transistor logic 470DTLS datagram transport layer security 471DTS device tree source 472DTS digital thermal sensor 473DUT device under test 474DVB digital video broadcasting 475DVCS distributed version control system 476DVD digital versatile disc 477DVFS dynamic voltage and frequency scaling 478DVI device independent 479DVI Digital Visual Interface 480DVR digital video recorder 481E-XER extended XML encoding rules 482EABI embedded-application binary interface 483EAI Email Address Internationalization 484EAI Enterprise Application Integration 485EAP Extensible Authentication Protocol 486EAPOL EAP over Lan 487EAV entity-attribute-value model 488EAV ethernet audio/video bridging 489EBCDIC Extended Binary Coded Decimal Interchange Code 490EBDA Extended BIOS Data Area 491EBNF extended backus-naur form 492EBR extended boot record 493EC elliptic curve 494ECC elliptic curve cryptography 495ECC error correction code 496ECDH elliptic curve Diffie-Hellman 497ECDL elliptic curve discrete logarithm 498ECDLP elliptic curve discrete logarithm problem 499ECDSA elliptic curve digital signature algorithm 500ECL emitter-coupled logic 501ECN explicit congestion notification 502ECP enhanced capability port 503ECS enhanced chip set 504ECS extended configuration space 505EDAC error detection and correction 506EDAT enhanced dynamic acceleration technology 507EdDSA Edwards curve digital signature algorithm 508EDGE explicit data graph execution 509EDID extended display identification data 510EDO extended data out 511EDS electronical data sheet 512EDSAC electronic delay storage automatic calculator 513EDVAC electronic discrete variable automatic computer 514EEE energy efficient ethernet 515EEPROM electrically erasable programmable read only memory 516EFI extensible firmware interface 517EFL emitter follower logic 518EFM eight to fourteen modulation 519EFS extent file system 520EGA Enhanced Graphics Adapter 521EGP exterior gateway protocol 522EH extension header 523EIDE enhanced IDE 524EISA extended industry standard architecture 525EINJ error injection table 526ELF executable and linking format 527ELS entry level system 528EMI electro-magnetic interference 529EMP electro-magnetic pulse 530EMR electro-magnetic radiation 531EMACS Editor MACroS 532ENIAC electronic numerical integrator and computer 533EOF end of file 534EOI end of interrupt 535EOIS end of interactive support 536EOL end of life 537EOL end of line 538EOT end of transmission 539EPIC explicitly parallel instruction computing 540EPP enhanced parallel port 541EPRML extended partial response, maximum likelihood 542EPROM erasable programmable read only memory 543EPT extended page tables 544ERC error recovery control 545ERD emergency recovery disk 546ERD entity relationship diagram 547ERE extended regular expression 548ERST error record serialization table 549ESAN Efficiency Sanitizer 550ESB enterprise service bus 551ESDI enhanced small disk interface 552ESDRAM enhanced synchronous dynamic random access memory 553ESI enclosure services interface 554ESS electronic switching system 555ESS extended service set 556ESSID extended service set identifier 557EST enhanced speedstep 558ETL extract, transform, load 559EU execution unit 560EULA end user license agreement 561FAT file allocation table 562FBRAM frame buffer random access memory 563FCIF full common intermediate format 564FCL fiber channel loop 565FCS frame check sequence 566FDC floppy disk controller 567FDD floppy disk drive 568FDDI fiber distributed data interface 569FDE full disk encryption 570FDT flattened device tree 571FEA finite element analysis 572FEC forward error correction 573FET field-effect transistor 574FF finite field 575FF form feed 576FFDH finite-field Diffie-Hellman 577FFH functional fixed hardware 578FFI foreign function interface 579FFM focus follows mouse 580FFS Fast File System 581FFS find first set 582FFT fast Fourier transform 583FG floating gate 584FHRP first hop redundancy protocol 585FHSS frequency hop spread spectrum 586FID frequency identifier 587FIFO first in, first out 588FILO first in, last out 589FIPS Federal Information Processing Standards 590FIR fast infrared 591FLOPS floating [point] operations per second 592FLOSS free/libre/open source software 593FM frequency modulation 594FMR false match rate 595FOSS free/open source software 596FPGA field programmable gate array 597FPM fast page mode 598FPR floating point register 599FPU floating point unit 600FQDN fully qualified domain name 601FRR false rejection rate 602FRU field replaceable unit 603FS file system 604FSB front side bus 605FSCK file system check 606FSF Free Software Foundation 607FSK frequency shift keying 608FSM finite-state machine 609FTA fault tree analysis 610FTL flash translation layer 611FTP File Transfer Protocol 612FTPS File Transfer Protocol Secure 613FUS fast user switching 614FWH firmware hub 615FWS folding white space 616GAL generic array logic 617GARP generic attribute registration protocol 618GAS generic address structure 619GC garbage collector 620GCM Galois counter mode 621GCR group-coded recording 622GDI Graphics Device Interface 623GDT global descriptor table 624GECOS general comprehensive operating supervisor 625GEM graphics environment manager 626GEM graphics execution manager 627GEMM general matrix multiply 628GENA general event notification architecture 629GHC Glasgow Haskell compiler 630GHES generic hardware error source 631GIC generic interrupt controller 632GID group identifier 633GIF graphics interchange format 634GLBP gateway load balancing protocol 635GMCH graphics and memory controller hub 636GNU GNU's Not Unix 637GOP graphics output protocol 638GOT global offset table 639GPE general purpose event 640GPF general protection fault 641GPG GNU Privacy Guard 642GPL [GNU] General Public License 643GPR general purpose register 644GPS generalized processor sharing 645GPT GUID partition table 646GPU graphics processing unit 647GR golden ratio 648GRE generic routing encapsulation 649GSI global system interrupt 650GUI graphical user interface 651GUID globally unique identifier 652GVFS git virtual file system 653HA high availability 654HAL hardware abstraction layer 655HAT hashed array tree 656HATEOAS hypermedia as the engine of application state 657HBA host bus adapter 658HCF halt and catch fire 659HCI host controller interface 660HCI human-computer interaction 661HCL hardware compatibility list 662HDCP High-bandwidth Digital Content Protection 663HDD hard disk drive 664HDL hardware description language 665HDMI High-Definition Multimedia Interface 666HDTV high-definition television 667HECI host embedded controller interface 668HEST hardware error source table 669HEVC high efficiency video coding 670HF high frequency 671HFM highest frequency mode 672HFS hierarchical file system 673HID human interface device 674HKP HTTP Keyserver Protocol 675HLL high-level language 676HMA high memory area 677HMI human-machine interface 678HOOD hierarchical object oriented design 679HP Hewlett-Packard 680HPC high performance computing 681HPD hot plug detection 682HPET high precision event timer 683HSM hardware security module 684HSM hierarchical storage management 685HSRP hot standby router protocol 686HT hyper-threading 687HTC hardware thermal control 688HTCC high temperature co-fired ceramic 689HTML HyperText Markup Language 690HTT hyper-threading technology 691HTTP Hypertext Transfer Protocol 692HTTPS Hypertext Transfer Protocol Secure 693HVM hardware virtual machine 694HVDS High-Voltage Differential Signaling 695HWASAN Hardware-assisted Address Sanitizer 696HZ Hertz 697I2O intelligent input/output 698IA information assurance 699IAAS infrastructure as a service 700IANA Internet Assigned Numbers Authority 701IBC iterated block cipher 702IBM International Business Machines 703IBPI international blinking pattern interpretation 704IBS instruction based sampling 705IBSS independent basic service set 706IC integrated circuit 707ICA independent computer architecture 708ICACLS integrity control access control lists 709ICB Internet Citizen's Band 710ICE in-circuit emulator 711ICE internal compiler error 712ICH I/O controller hub 713ICMP Internet Control Message Protocol 714ICT information and communications technology 715ICW initialization command word 716IDA Intel dynamic acceleration 717IDCMP Intuition direct communication message port 718IDCT inverse discrete cosine transform 719IDE integrated development environment 720IDE integrated drive electronics 721IDPS intrusion detection [and] prevention system 722IDRP inter-domain routing protocol 723IDS intrusion detection system 724IDT interrupt descriptor table 725IE Internet Explorer 726IEC International Electrotechnical Commission 727IEEE Institute of Electrical and Electronics Engineers 728IESG Internet Engineering Steering Group 729IETF Internet Engineering Task Force 730IF intermediate frequency 731IFCM isochronous flow control mode 732IFF Interchange File Format 733IFS internal field separator 734IGD Internet gateway device 735IGMP Internet Group Management Protocol 736IGP interior gateway protocol 737IHV independent hardware vendor 738IKE Internet key exchange 739ILM internal loopback mode 740ILOM integrated lights-out management 741ILP instruction level parallelism 742IM instant messaging 743IME input method editor 744IMAP Internet Message Access Protocol 745IMC integrated memory controller 746IMCR interrupt mode configuration register 747IMR interrupt mask register 748IMS information management system 749IMSI international mobile subscriber identity 750INCITS InterNational Committee for Information Technology Standards 751INODE index node 752IO input/output 753IOCTL input/output control 754IOM input/output managers 755IOMMU input/output memory management unit 756IOT Internet of Things 757IP Internet Protocol 758IP intellectual property 759IPC instructions per cycle 760IPC interprocess communication 761IPCF interprocess communication facility 762IPE integrated programming environment 763IPI intelligent peripheral interface 764IPI interprocessor interrupt 765IPL Initial Program Load 766IPL Interrupt Priority Level 767IPMB Intelligent Platform Management Bus 768IPMI Intelligent Platform Management Interface 769IPNG Internet Protocol, Next Generation 770IPS in-plane switching 771IPS intrusion prevention system 772IPSEC Internet Protocol Security 773IRC Internet Relay Chat 774IRDA infrared data association 775IRDP ICMP Router Discovery Protocol 776IRQ interrupt request 777IRQL interrupt request level 778IRR interrupt request register 779IRTF Internet Research Task Force 780IS information system 781ISA industry standard architecture 782ISA instruction set architecture 783ISE instant secure erase 784ISDN integrated services digital network 785ISI inter-symbol interference 786ISL initial system load 787ISM industrial, scientific, [and] medical 788ISMS information system management system 789ISN initial serial number 790ISO International Standards Organization 791ISOC Internet Society 792ISP Internet service provider 793ISR in-service register 794ISR interrupt service routine 795IST internal spanning tree 796IST interrupt stack table 797ISV independent software vendor 798IT information technology 799ITB Intel Turbo Boost 800ITIL information technology infrastructure library 801ITP in-target probe 802ITSM IT service management 803IV initialization vector 804IVT interrupt vector table 805JBOD just a bunch of disks 806JCL Job Control Language 807JFET junction [gate] field-effect transistor 808JIT just in time 809JPEG Joint Photographic Experts Group 810JRE Java Runtime Environment 811JSON JavaScript Object Notation 812JTAG joint test action group 813KASLR kernel address space layout randomization 814KB keyboard 815KB kilobyte 816KBD keyboard 817KBD kilobaud 818KCS keyboard controller style 819KLOC thousand lines of code 820KMS kernel-mode setting 821KPI kernel programming interface 822KVA kernel virtual address 823KVM kernel virtual machine 824KVM kernel virtual memory 825KVM keyboard, video, [and] mouse 826L2CAP link layer control and adaptation protocol 827LAG link aggregation group 828LAMP Linux Apache MySQL {Perl,PHP,Python} 829LAN local area network 830LAPIC local advanced programmable interrupt controller 831LAR load access rights 832LBA logical block addressing 833LBNF labeled backus-naur form 834LBS location-based service 835LCD liquid crystal display 836LCP link control protocol 837LDA local delivery agent 838LDAP Lightweight Directory Access Protocol 839LDR light-dependent resistor 840LDT local descriptor table 841LE logical extent 842LED light emitting diode 843LELL low energy link layer 844LER label edge router 845LF line feed 846LF low frequency 847LFM lowest frequency mode 848LFN long file names 849LFO low-frequency oscillation 850LFS log-structured file system 851LFU least frequently used 852LHP loop heat pipe 853LIF logical interchange format 854LIFO last in, first out 855LILO LInux LOader 856LILO last in, last out 857LINT local interrupt 858LIR local Internet registry 859LISP LISt Processor 860LISP Locator/ID Separation Protocol 861LKM {Linux,loadable} kernel module 862LKML Linux kernel mailing list 863LL load linked 864LL/SC load linked/store conditional 865LLC logical link control 866LLD low-level design 867LLDD low-level design document 868LLDP link layer discovery protocol 869LLF low level format 870LLMNR link-local multicast name resolution 871LLVM Low Level Virtual Machine 872LM long mode 873LMCE local machine check exception 874LMI local management interface 875LMM link management mode 876LMP link management protocol 877LNO loop nest optimization 878LOC lines of code 879LOM lights-out management 880LPE Linux performance events 881LPC low pin count 882LPS local positioning system 883LRC longitudinal redundancy check 884LRM left-to-right mark 885LRO left-to-right override 886LRU least recently used 887LS link state 888LSAN Leak Sanitizer 889LSB Linux standards base 890LSB least significant {bit,byte} 891LSI large scale integration 892LSL load segment limit 893LSM log structured merge 894LSN Large Scale NAT 895LSN log sequence number 896LSO large send offload 897LSR label switch router 898LTCC low temperature co-fired ceramic 899LTO linear tape-open 900LTO link time optimization 901LTR left to right 902LTR load task register 903LTR letter(-sized paper) 904LTS long term support 905LUA Lua Uppercase Accident 906LUN logical unit number 907LV logical volume 908LVM logical volume management 909LVT local vector table 910LVDS Low-Voltage Differential Signaling 911LWP light-weight process 912LZSS Lempel Ziv Storer Szymanski 913LZW Lempel Ziv Welch 914MAB MAC authentication bypass 915MAC mandatory access control 916MAC {media,medium} access control 917MAC message authentication {check,code} 918MADT multiple APIC descriptor table 919MAMR microwave-assisted magnetic recording 920MB megabyte 921MBA multi-boot agent 922MBR master boot record 923MBS megabits per second 924MC memory controller 925MCA machine check architecture 926MCA MicroChannel architecture 927MCC multiversion concurrency control 928MCE machine check exception 929MCGA Multi-Color Graphics Array 930MCH memory controller hub 931MCLAG multi-chassis link aggregation group 932MCM multi-chip module 933MCQ memory controlled queue 934MD machine-dependent 935MD-SAL model-driven service abstraction layer 936MDA mail delivery agent 937MDA Monochrome Display Adapter 938MDC Management Data Clock 939MDI Medium Dependent Interface 940MDI-X Medium Dependent Interface Crossover 941MDIO Management Data Input/Output 942MDMX MIPS Digital Media eXtension 943MDRAM multibank dynamic random access memory 944MESI modified, exclusive, shared, invalid 945MFC merge from current 946MFC Microsoft Foundation Classes 947MFM modified frequency modulation 948MFU most frequently used 949MGCP media gateway control protocol 950MHU message handling unit 951MI machine-independent 952MI machine interface 953MIB management information base 954MIC message integrity {check,code} 955MID mobile Internet device 956MIDI musical instrument digital interface 957MIF management information format 958MII media independent interface 959MIM man in the middle 960MIMD multiple instruction, multiple data 961MIME Multipurpose Internet Mail Extensions 962MIMO multiple input multiple output 963MIPS million instructions per second 964MIPS Microprocessor without Interlocked Pipeline Stages 965MISD multiple instruction, single data 966MIT Massachusetts Institute of Technology 967MITM man in the middle 968ML machine language 969ML machine learning 970ML mailing list 971ML markup language 972ML maximum likelihood 973MLAG multi-chassis link aggregation group 974MLC multi-level cell 975MLD multicast listener discovery 976MLHP micro loop heat pipe 977MMF multi-mode fiber 978MMIC monolithic microwave integrated circuit 979MMIO memory mapped input/output 980MMORPG massive multiplayer online role playing game 981MMRP multiple MAC registration protocol 982MMU memory management unit 983MMX matrix math extension 984MMX multimedia extension 985MMX multiple math extension 986MO magneto-optical 987MOESI modified, owned, exclusive, shared, invalid 988MOF maximum operating frequency 989MOSFET metal-oxide-semiconductor field-effect transistor 990MOSI modified, owned, shared, invalid 991MP multi-platform 992MP multiplayer 993MP {multiprocessing,multiprocessor} 994MPEG moving picture experts group 995MPI message passing interface 996MPLS Multiprotocol Label Switching 997MPP massively parallel processor 998MPS memory pool system 999MPS multiprocessor specification 1000MQTT Message Queuing Telemetry Transport 1001MR modem ready 1002MRO method resolution order 1003MRP multiple registration protocol 1004MRU most recently used 1005MS Microsoft 1006MSAN Memory Sanitizer 1007MSB most significant {bit,byte} 1008MSC message sequence chart 1009MSE mean square error 1010MSF minutes seconds frames 1011MSI message signaled interrupt 1012MSI modified, shared, invalid 1013MSR {machine state,model-specific} register 1014MSS maximum segment size 1015MSTP Multiple Spanning Tree Protocol 1016MT machine translation 1017MTA mail transfer agent 1018MTBF mean time between failures 1019MTP media transfer protocol 1020MTRR memory type range register 1021MTTF mean time to failure 1022MTU maximum transmission unit 1023MUA mail user agent 1024MUD multi-user domain 1025MVCC multiversion concurrency control 1026MVR multicast VLAN registration 1027MVRP multiple VLAN registration protocol 1028MWE module width encoding 1029MX mail exchange 1030NACK negative acknowledgement 1031NAK negative acknowledgement 1032NAN neighbor awareness networking 1033NAN not a number 1034NAPT Network Address Port Translation 1035NAS network attached storage 1036NAT network address translation 1037NAV network allocation vector 1038NC numerical control 1039NC-SI network controller sideband interface 1040NCO numerically-controlled oscillator 1041NCP Network Control Protocol 1042NCSI network connectivity status indicator 1043NCQ native command queuing 1044ND neighbor discovery 1045NDFA nondeterministic finite automaton 1046NDIS network driver interface specification 1047NE numeric error 1048NEWS Network extensible Window System 1049NFA nondeterministic finite automaton 1050NFC near-field communication 1051NFCI no functional change intended 1052NFS network file system 1053NFV network function virtualization 1054NIA next instruction address 1055NIC network information center 1056NIC network interface card 1057NIDS network intrusion detection system 1058NIP network interface protocol 1059NIPS network intrusion prevention system 1060NIS network information service 1061NIST National Institute of Standards and Technology 1062NLS native language support 1063NMI non-maskable interrupt 1064NNTP Network News Transfer Protocol 1065NOC network operations center 1066NOP no operation 1067NOS network operating system 1068NP nondeterministic polynomial time 1069NRND not recommended for new designs 1070NRZ non-return to zero 1071NSA nation-state adversary 1072NSA no such agency 1073NSA National Security Agency 1074NTM non-deterministic Turing machine 1075NTP Network Time Protocol 1076NUMA non-uniform memory access 1077NURBS non-uniform rational basis spline 1078NVMM NetBSD Virtual Machine Monitor 1079NVMM non-volatile main memory 1080NVRAM non-volatile random access memory 1081NW not write-through 1082NX no execute 1083OAEP optimal asymmetric encryption padding 1084OAM operations, administration, and {management,maintenance} 1085OBO off by one 1086OBOE off by one error 1087OCL object constraint language 1088OCR optical character recognition 1089ODE offline device environment 1090ODI open data-link interface 1091ODM object data manager 1092ODCM on-demand clock modulation 1093ODT on-die termination 1094OEM original equipment manufacturer 1095OFB output feedback 1096OFDM orthogonal frequency division multiplexing 1097OFET organic field-effect transistor 1098OLAP online analytical processing 1099OLE object linking and embedding 1100OLTP online transaction processing 1101ONFI open nand flash interface 1102OO OpenOffice 1103OO object oriented 1104OOB out of band 1105OOE out of order execution 1106OOM out of memory 1107OOO OpenOffice.org 1108OOP object oriented programming 1109OOPS object oriented programming systems 1110OOSE object oriented software engineering 1111OPM operations per minute 1112OPS operations per second 1113OQL Object Query Language 1114ORB object request broker 1115ORM object-relational mapping 1116OS operating system 1117OSD object-based storage device 1118OSD open source definition 1119OSF open software foundation 1120OSI Open Source Initiative 1121OSI open systems interconnection 1122OSPF open shortest path first 1123OSPM OS power management 1124OSS open sound system 1125OSS open source software 1126OSVW operating system visible workarounds 1127OTP one time password 1128OTP open telecom platform 1129OU organizational unit 1130OUI organizationally unique identifier 1131OWASP Open Web Application Security Project 1132OWL Web Ontology Language 1133P2P PCI to PCI 1134P2P peer to peer 1135PA phase accumulator 1136PA physical address 1137PAAS platform as a service 1138PAC phase-amplitude converter 1139PAE physical address extension 1140PAGP port aggregation protocol 1141PAL phase alternating line 1142PAL programmable array logic 1143PAM pluggable authentication modules 1144PAM pulse amplitude modulation 1145PAP password authentication protocol 1146PAT page attribute table 1147PAT port address translation 1148PATA parallel ATA 1149PAX portable archive exchange 1150PBE pending break encoding 1151PBE programming by example 1152PC personal computer 1153PC program counter 1154PCB printed circuit board 1155PCB process control block 1156PCB Protocol Control Block 1157PCBC propagating cipher block chaining 1158PCC Portable C Compiler 1159PCD page-level cache disable 1160PCE path computation element 1161PCE performance-monitor counter enable 1162PCEP Path Computation Element Protocol 1163PCH platform controller hub 1164PCI peripheral component interconnect 1165PCM phase change memory 1166PCM pulse code modulation 1167PCMCIA Personal Computer Memory Card International Association 1168PCP Port Control Protocol 1169PD public domain 1170PDA personal digital assistant 1171PDA pushdown automaton 1172PDAG propositional directed acyclic graph 1173PDB power distribution board 1174PDF portable document format 1175PDM pulse-duration modulation 1176PDN pull-down network 1177PDP page {descriptor,directory} page 1178PDS product data sheet 1179PDU protocol data unit 1180PE protection enable 1181PE provider edge 1182PEAP Protected EAP 1183PECI platform environment control interface 1184PEP protocol extension protocol 1185PER packed encoding rules 1186PFS perfect forward secrecy 1187PGAS partitioned global address space 1188PGE page global enable 1189PGP Pretty Good Privacy 1190PHB PCI host bridge 1191PHP PHP: Hypertext Preprocessor 1192PIC performance instrumentation counters 1193PIC position independent code 1194PIC programmable interrupt controller 1195PICNIC problem in chair, not in computer 1196PID process id 1197PIE position independent executable 1198PIL Priority Interrupt Level 1199PIM personal information manager 1200PIM platform-independent model 1201PIO programmed input/output 1202PIPT physically indexed, physically tagged 1203PIQ prefetch input queue 1204PIT programmable interrupt timer 1205PIV personal identity verification 1206PIX Private Internet eXchange 1207PKCS public-key cryptography standards 1208PKI public key infrastructure 1209PLC programmable logic controller 1210PLD programmable logic device 1211PLL phase locked loop 1212PLRU pseudo LRU 1213PLTM package level thermal management 1214PM power management 1215PM {phase,pulse} modulation 1216PMC performance monitoring counters 1217PME power management event 1218PMEG page map entry group 1219PMI performance monitoring infrastructure 1220PMI platform management interrupt 1221PMIC power management integrated circut 1222PMIO port-mapped input/output 1223PMT photo-multiplier tube 1224PMU performance monitoring units 1225PMU power management unit 1226PNG portable network graphics 1227PNP plug and play 1228POE power over ethernet 1229POF probability of failure 1230POP Post Office Protocol 1231POP power on password 1232POR plan of record 1233POSIX Portable Operating System Interface [for Unix] 1234POST power on self test 1235POTS plain old telephone system 1236POWER Performance Optimization With Enhanced RISC 1237POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1238PP pair programming 1239PPB PCI [to] PCI bridge 1240PPC PowerPC 1241PPC Power Performance Computing 1242PPI pixels per inch 1243PPM pages per minute 1244PPP Point-to-Point Protocol 1245PPPOA Point-to-Point Protocol over ATM 1246PPPOE Point-to-Point Protocol over Ethernet 1247PPR processor programming reference 1248PPT powerpoint 1249PPT punched paper tape 1250PPU physics processing unit 1251PRAM Parameter RAM 1252PRBS pseudorandom bit sequence 1253PRG pseudorandom generator 1254PRF pseudorandom function [family] 1255PRML partial response, maximum likelihood 1256PRN pseudorandom {noise,number} 1257PRNG pseudorandom number generator 1258PROM programmable read only memory 1259PRP pseudorandom permutation 1260PRU Programmable Realtime Unit 1261PS PostScript 1262PSD power spectral density 1263PSE page size extensions 1264PSK phase shift keying 1265PSK pre-shared key 1266PSTN public switched telephone network 1267PSW program status word 1268PTE page table entry 1269PTLA pseudo top level aggregator 1270PTP page table page 1271PTV perceived target value 1272PU processing unit 1273PUC personal unblocking code 1274PUN physical unit number 1275PV physical volume 1276PVC permanent virtual circuit 1277PVG physical volume group 1278PVI protected-mode virtual interrupt 1279PVRST Per-VLAN rapid spanning tree 1280PVST Per-VLAN Spanning Tree 1281PWM pulse width modulation 1282PXE preboot execution environment 1283QA quality assurance 1284QAM quadrature amplitude modulation 1285QAM quality assurance management 1286QBE query by example 1287QC quality control 1288QDI quasi delay insensitive 1289QCIF quarter common intermediate format 1290QOI quality of implementation 1291QOI quick order interface 1292QOS quality of service 1293QVL qualified vendor list 1294R/O read only 1295R/W read/write 1296RA receiver address 1297RA remote assistance 1298RA resource affinity 1299RA router advertisement 1300RAD rapid application development 1301RADIUS remote authentication dial-in user service 1302RAID redundant array of {independent,inexpensive} disks 1303RAM random access memory 1304RAS reliability, availability and serviceability 1305RAS remote access service 1306RAS restartable atomic sequence 1307RAS row address strobe 1308RBF radial basis function 1309RBNF routing backus-naur form 1310RBT red-black tree 1311RC release candidate 1312RC remote control 1313RC run commands 1314RCS Revision Control System 1315RCS revision control system 1316RCU read, copy, update 1317RDB Rigid Disk Block 1318RDBMS relational database management system 1319RDF Resource Description Framework 1320RDM relational data model 1321RDMA remote direct memory access 1322RDP remote desktop protocol 1323RDRAM Rambus DRAM 1324RE regular expression 1325REPL read, evaluate, print, loop 1326REST representational state transfer 1327RF radio frequency 1328RFB remote frame buffer 1329RFI radio frequency interference 1330RFO request for ownership 1331RFU reserved for future use 1332RGB red green blue 1333RGBA red green blue alpha 1334RGMII reduced gigabit media independent interface 1335RH read hit 1336RHEL Red Hat Enterprise Linux 1337RHL Red Hat Linux 1338RIB routing information base 1339RIFF Resource Interchange File Format 1340RIP Raster Image Processor 1341RIP Routing Information Protocol 1342RIR regional Internet registry 1343RISC reduced instruction set {computer,computing} 1344RKM ROM Kernel Manual 1345RLE run length encoding 1346RLL run length limited 1347RLO right-to-left override 1348RM read miss 1349RMCP Remote Management Control Protocol 1350RMI remote method invocation 1351RMO Relaxed Memory Ordering 1352RMPM rapid memory power management 1353RMS root mean square 1354RMW read, modify, write 1355RNG random number generator 1356ROM read only memory 1357RPC remote procedure call 1358RPKI resource PKI 1359RPL requested privilege level 1360RPM revolutions per minute 1361RPN reverse Polish notation 1362RPVST Rapid Per-VLAN Spanning Tree 1363RR random replacement 1364RR round robin 1365RS relay station 1366RSA Rivest, Shamir, [and] Adleman 1367RSIP Realm Specific IP 1368RSN Robust Secure Network 1369RSS really simple syndication 1370RSS residual sum of squares 1371RSTP Rapid Spanning Tree Protocol 1372RT real time 1373RTC real time clock 1374RTC real time computing 1375RTF rich text format 1376RTL register transfer language 1377RTL resistor-transistor logic 1378RTL right to left 1379RTOS real time operating system 1380RTS request to send 1381RTT round trip time 1382RUP rational unified process 1383RW Rabin-Williams 1384RWM read-write memory 1385RX {receive,receiver} 1386S/PDIF Sony/Philips Digital Interface Format 1387SA security advisory 1388SA security association 1389SA source address 1390SA structured analysis 1391SAAS software as a service 1392SABRE Semi-automated business research environment 1393SACD super audio compact disc 1394SAD security association database 1395SAF-TE SCSI accessed fault-tolerant enclosure 1396SAGE Semi-automated ground environment 1397SAL {service,system} abstraction layer 1398SAM serial access memory 1399SAM sum addressed memory 1400SAML security assertion markup language 1401SAN storage area network 1402SAP service access point 1403SAPIC streamlined advanced programmable interrupt controller 1404SASD structured analysis, structured design 1405SASI Shugart Associates System Interface 1406SASL simple authentication [and] security layer 1407SATA serial advanced technology attachment 1408SAX simple API for XML 1409SB sound blaster 1410SBSA server base system architecture 1411SBU standard build unit 1412SC store conditional 1413SCA source code analyzer 1414SCADA supervisory control and data acquisition 1415SCC single chip cloud 1416SCC source code control 1417SCCP skinny call control protocol 1418SCCS Source Code Control System 1419SCI scalable coherent interface 1420SCI system control interrupt 1421SCIM smart common input method 1422SCM software configuration management 1423SCM source code management 1424SCM storage-class memory 1425SCO synchronous connection orientated 1426SCP secure copy 1427SCP system control processor 1428SCPI system control and power interface 1429SCSI Small Computer System Interface 1430SCTP Stream Control Transmission Protocol 1431SDDC software defined data center 1432SDEI software delegated exception interface 1433SDI symbol deinterleave 1434SDK software development kit 1435SDL Simple Declarative Language 1436SDL Simple Direct-media Layer 1437SDLC {software,system,systems} development life cycle 1438SDN software defined networking 1439SDP Session Description Protocol 1440SDR software defined radio 1441SDRAM synchronous dynamic random access memory 1442SDS software defined storage 1443SDT syntax-directed translation 1444SEA synchronous external abort 1445SEGV segmentation violation 1446SED self-encrypting drive 1447SED stream editor 1448SEMB serial ATA enclosure management bridge 1449SEO search engine optimization 1450SES SCSI enclosure services 1451SFC sequential function chart 1452SFI simple firmware interface 1453SFI software fault isolation 1454SFTP SSH File Transfer Protocol 1455SFTP Serial File Transfer Protocol 1456SFTP Simple File Transfer Protocol 1457SGI Silicon Graphics, Inc 1458SGI software generated interrupt 1459SGMII serial gigabit media independent interface 1460SGPIO serial general purpose input/output 1461SGRAM synchronous graphics random access memory 1462SHA secure hash algorithm 1463SICP structure and interpretation of computer programs 1464SIDH supersingular isogeny Diffie-Hellman 1465SIEM security information and event management 1466SIF source input format 1467SIFS short inter-frame space 1468SIM subscriber identity module 1469SIMD single instruction, multiple data 1470SIMM single inline memory module 1471SIP Session Initiation Protocol 1472SIR signal-to-interference ratio 1473SIR slow infrared 1474SISD single instruction, single data 1475SLAAC stateless address auto-configuration 1476SLC single-level cell 1477SLDRAM synchronous-link dynamic random access memory 1478SLED single large expensive disk 1479SLI scalable link interface 1480SLI scan-line interleave 1481SLIC system license internal code 1482SLOC source lines of code 1483SLRU segmented LRU 1484SMA smart memory access 1485SMAF system management action field 1486SMAP Simple Mail Access Protocol 1487SMAP supervisor mode access prevention 1488SMART self-monitoring analysis and reporting technology 1489SMB Server Message Block 1490SMB system management bus 1491SMBIOS System Management BIOS 1492SMC system management controller 1493SMD storage module device 1494SMEP supervisor mode execution protection 1495SMF single mode fiber 1496SMI structure of management information 1497SMI system management interrupt 1498SMM system management mode 1499SMP serial management protocol 1500SMP symmetric multiprocessing 1501SMT simultaneous multithreading 1502SMTP Simple Mail Transfer Protocol 1503SMU system management unit 1504SNA systems network architecture 1505SNAP Sub-Network Access Protocol 1506SNIA Storage Networking Industry Association 1507SNMP Simple Network Management Protocol 1508SNR signal-to-noise ratio 1509SOA service oriented architecture 1510SOAP Simple Object Access Protocol 1511SOC system on chip 1512SOF start of frame 1513SOH start of header 1514SOHO small office/home office 1515SOL serial over LAN 1516SOM system on module 1517SP service pack 1518SP stack pointer 1519SPA storage pool allocator 1520SPAN switched port analyzer 1521SPARC scalable processor architecture 1522SPARQL SPARQL Protocol and RDF Query Language 1523SPD security policy database 1524SPD serial presence detect 1525SPDIF Sony/Philips digital interface format 1526SPI serial peripheral interface 1527SPI stateful packet inspection 1528SPL system interrupt priority level 1529SPL spinlock 1530SPMD single process, multiple data 1531SPR special purpose register 1532SPT sectors per track 1533SQA software quality assurance 1534SQCIF sub quarter common intermediate format 1535SQL Structured Query Language 1536SRAM static random access memory 1537SRC sample rate conversion 1538SRP SCSI RDMA protocol 1539SRR shaped round robin 1540SS self-snoop 1541SS stack segment 1542SSA static single assignment 1543SSAP source service access point 1544SSB single-sideband modulation 1545SSC spread spectrum clock 1546SSD solid state drive 1547SSE streaming SIMD extensions 1548SSFDC solid state floppy disc card 1549SSH secure shell 1550SSI server side includes 1551SSID service set identifier 1552SSTP secure socket tunneling protocol 1553SSL secure sockets layer 1554SSP stack smashing protection 1555STC software thermal control 1556STD state transition diagram 1557STM software transactional memory 1558STOMP Streaming Text Oriented Messaging Protocol 1559STP Spanning Tree Protocol 1560STP shielded twisted pair 1561STRG spanning tree root guard 1562SUN Stanford University Network 1563SUS Single Unix Specification 1564SUT system under test 1565SVC switched virtual circuit 1566SVG scalable vector graphics 1567SVGA Super Video Graphics Array 1568SVI {switch,switched} virtual interface 1569SVM secure virtual machine 1570SVM support vector machine 1571SVR System V Release 1572SVS Separate Virtual Space 1573SWF Shockwave Flash 1574SWIG simplified wrapper [and] interface generator 1575SYR symbol timing recovery 1576TA test assertion 1577TA transmitter address 1578TACACS terminal access controller access-control system 1579TAI international atomic time 1580TAO track at once 1581TAOCP The Art of Computer Programming 1582TAP Test Anything Protocol 1583TAS test and set 1584TB terabyte 1585TBNF transitional backus-naur form 1586TCB trace capture buffer 1587TCB trusted computing base 1588TCC thermal control circuit 1589TCL tool command language 1590TCP Transmission Control Protocol 1591TCQ tagged command queueing 1592TDC time [to] digital converter 1593TDD test-driven development 1594TDD time division duplex 1595TDM time division multiplexing 1596TDMA time division multiple access 1597TDOA time difference of arrival 1598TDP thermal design {point,power} 1599TDR time-domain reflectometry 1600TECO Text Editor and Corrector 1601TFT thin film transistor 1602TFTP Trivial File Transfer Protocol 1603TIAS try it and see 1604TIFF tagged image file format 1605TITS try it to see 1606TK temporal key 1607TKIP Temporal Key Integrity Protocol 1608TLA top level aggregator 1609TLB translation lookaside buffer 1610TLD top level domain 1611TLER time-limited error recovery 1612TLI transport layer interface 1613TLS thread local storage 1614TLS transport layer security 1615TM Turing machine 1616TM thermal monitor 1617TMG transmogrifier 1618TMDS transition minimized differential signaling 1619TMO timeout 1620TOD time of day 1621TOFU trust on first use 1622TOS terms of service 1623TOS trusted operating system 1624TOS type of service 1625TP transaction processing 1626TPI tracks per inch 1627TPM transactions per minute 1628TPM trusted platform module 1629TPR task priority register 1630TPS transactions per second 1631TPS transmission parameters signaling 1632TR task register 1633TR token ring 1634TRL timing recovery loop 1635TRNG true random number generator 1636TS terminal services 1637TS time series 1638TS time stamp 1639TS transport stream 1640TSAN Thread Sanitizer 1641TSC time stamp counter 1642TSD time stamp disable 1643TSDB time series database 1644TSL test, set, lock 1645TSO time sharing option 1646TSO Total Store Ordering 1647TSP Time-Stamp Protocol 1648TSP Tunnel Setup Protocol 1649TSP time synchronization protocol 1650TSP traveling salesman problem 1651TSS task state segment 1652TSV tab-separated values 1653TTL time to live 1654TTL transistor-transistor logic 1655TTM translation table maps 1656TTY teletype 1657TUI {terminal,text-based,textual} user interface 1658TX {transmit out,transmitter} 1659TXG transaction group 1660TZ time zone 1661UAC user {access,account} control 1662UAF use-after-free 1663UART universal asynchronous receiver/transmitter 1664UAT user acceptance testing 1665UB undefined behavior 1666UBSAN Undefined Behavior Sanitizer 1667UC uncacheable 1668UCS uniform-cost search 1669UCS unified computing system 1670UCS universal coded character set 1671UDI uniform driver interface 1672UDMA ultra DMA 1673UDO ultra density optical 1674UDP User Datagram Protocol 1675UEFI unified extensible firmware interface 1676UFS Unix File System 1677UGA universal graphics adapter 1678UI unit interval 1679UI user interface 1680UICC universal integrated circuit card 1681UID unique identifier 1682UID user identifier 1683UL upload 1684UMA uniform memory access 1685UMA upper memory area 1686UMB upper memory block 1687UML unified modeling language 1688UMPC ultra-mobile PC 1689UPNP universal plug and play 1690UPS uninterruptible power supply 1691URI uniform resource identifier 1692URL uniform resource locator 1693URN uniform resource name 1694USART universal synchronous/asynchronous receiver/transmitter 1695USB universal serial bus 1696USWC uncacheable speculative write combining 1697UT unit test 1698UTC coordinated universal time 1699UTF unicode transformation formats 1700UTP unshielded twisted pair 1701UTS UNIX time-sharing 1702UUCP Unix-to-Unix Copy Protocol 1703UUID universally unique identifier 1704UUOC useless use of cat 1705UUT unit under test 1706UX user experience 1707VA vertical alignment 1708VA virtual address 1709VA volt-ampere 1710VAX virtual address extension 1711VB Visual Basic 1712VCA variable-gain amplifier 1713VCC common collector voltage 1714VCCP virtual chassis control protocol 1715VCF voltage-controlled filter 1716VCM virtual channel memory 1717VCO voltage-controlled oscillator 1718VCP virtual chassis port 1719VCS version control system 1720VDPAU Video Decode and Presentation API for Unix 1721VES virtual execution system 1722VESA Video Electronics Standards Association 1723VFO variable-frequency oscillator 1724VFS virtual file system 1725VG volume group 1726VGA Video Graphics Array 1727VHDCI very high density cable interconnect 1728VID {VLAN,voltage level} identifier 1729VIM Vi IMproved 1730VIPT virtually indexed, physically tagged 1731VIVT virtually indexed, virtually tagged 1732VLAN virtual local area network 1733VLD variable-length decoding 1734VLIW very long instruction word 1735VLSI very large scale integration 1736VLSM variable length subnet mask 1737VM virtual {machine,memory} 1738VME virtual mode extension 1739VMX vector multimedia extensions 1740VMX virtual machine extensions 1741VNC virtual network computing 1742VOD video on demand 1743VPD vital product data 1744VPN virtual private network 1745VPWS virtual private wire service 1746VR virtual reality 1747VRAM video random access memory 1748VRF virtual routing and forwarding 1749VRM voltage regulator module 1750VROC Virtual RAID On CPU 1751VRRP Virtual Router Redundancy Protocol 1752VSTP VLAN Spanning Tree Protocol 1753VTP VLAN Trunking Protocol 1754VXFS Veritas file system 1755VXVM Veritas volume manager 1756W watt 1757W3C World Wide Web Consortium 1758WAFL write anywhere file layout 1759WAMP Web Application Messaging Protocol 1760WAN wide area network 1761WAP Wireless Application Protocol 1762WAP wireless access point 1763WDM Windows Driver Model 1764WDDM Windows Display Driver Model 1765WDT watchdog timer 1766WEP Wired Equivalent Privacy 1767WFI wait for interrupt 1768WFQ weighted fair queuing 1769WH write hit 1770WHEA Windows hardware error architecture 1771WIFI wireless fidelity 1772WLAN wireless local area network 1773WM write miss 1774WMF Windows meta file 1775WMI Windows Management Instrumentation 1776WOL Wake-on-LAN 1777WOM Wake-on-Modem 1778WOR Wake-on-Ring 1779WORM write once read many 1780WP WordPerfect 1781WP word processor 1782WP write protect 1783WPA Wi-Fi Protected Access 1784WPA2 Wi-Fi Protected Access II 1785WPAD web proxy auto-discovery protocol 1786WPS Wi-Fi Protected Setup 1787WRAM window random access memory 1788WS web services 1789WTC write through caching 1790WTD weighted tail drop 1791WWAN wireless wide area network 1792WWW world wide web 1793WYSIAYG what you see is all you get 1794WYSIWYG what you see is what you get 1795XBAR crossbar 1796XDMCP X Display Manager control protocol 1797XER XML encoding rules 1798XGA Extended Graphics Array 1799XHR XMLHttpRequest 1800XIP execute in place 1801XML Extensible Markup Language 1802XNA XNA's not acronymed 1803XNS Xerox network systems 1804XOR exclusive or 1805XP extreme programming 1806XSI X/Open System Interface 1807XSL extensible stylesheet language 1808XSLT extensible stylesheet language transformations 1809XSS cross site scripting 1810XT extended technology 1811XTACACS extended terminal access controller access-control system 1812XTI X/Open transport interface 1813XUL XML user interface language 1814YACC yet another compiler compiler 1815YAML YAML ain't markup language 1816YANG yet another next generation 1817YAWPFAPR you are welcome; please file a problem report 1818YP Yellow Pages 1819YTD year to date 1820ZAP ZFS attribute processor 1821ZBR zone bit recording 1822ZFOD zero-filled on demand 1823ZFS zettabyte file system 1824ZIF zero insertion force 1825ZIFS zero insertion force socket 1826ZIL ZFS intent log 1827ZMA zone multicast address 1828ZOI zero one infinity 1829ZOI zone of influence 1830ZPL ZFS Posix layer 1831ZVOL ZFS Volume 1832