acronyms.comp revision 1.268
1$NetBSD: acronyms.comp,v 1.268 2019/06/22 12:45:55 sevan 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 26ADO active data objects 27ADP automatic data processing 28ADPCM adaptive differential pulse code modulation 29ADS alternate data stream 30ADSL asymmetric digital subscriber line 31ADT abstract data type 32AER advanced error reporting 33AES Advanced Encryption Standard 34AFP Apple Filing Protocol 35AFS Andrew File System 36AGC automatic gain control 37AGP accelerated graphics port 38AI analog input 39AI artificial intelligence 40AL access list 41AL active link 42ALE address latch enable 43ALS ambient light sensor 44ALU arithmetic and logical unit 45ALUA asymmetric logical unit access 46AM access method 47AM alignment mask 48AM amplitude modulation 49AMD Advanced Micro Devices Inc 50AMDD Agile model-driven development 51AMI alternate mark inversion 52AMP asymmetric multiprocessing 53AMQP advanced message queuing protocol 54AMT active management technology 55AN Arabic number 56ANR application not responding 57ANSI American National Standards Institute 58AO analog output 59AOC add-on card 60AOL Alert-on-LAN 61AOS add or subtract 62AP access point 63AP application processor 64APFS Apple file system 65API application programming interface 66APEI ACPI platform error interface 67APIC advanced programmable interrupt controller 68APIPA automatic private IP addressing 69APM advanced power management 70APM application performance management 71APU accelerated processing unit 72APT advanced persistent threat 73AQM active queue management 74ARAT always running APIC timer 75ARC adaptive replacement cache 76ARC Advanced RISC Computing 77ARC automatic reference counting 78ARM Advanced RISC Machines 79ARP Address Resolution Protocol 80ARPA Advanced Research Projects Agency 81ARQ automatic repeat request 82ARR address range register 83ARU audio response unit 84AS autonomous system 85ASA Adaptive Security Appliance 86ASAN Address Sanitizer 87ASC advanced smart cache 88ASCII American Standard Code for Information Interchange 89ASD agile software development 90ASE advanced software environment 91ASF alert standard format 92ASIC application-specific integrated circuit 93ASK amplitude shift keying 94ASLR address space layout randomization 95ASN autonomous system number 96ASP active server pages 97ASP auxiliary storage pool 98ASPM active state power management 99ASQ automated software quality 100ASR address space register 101ASR Apple software restore 102AST abstract syntax tree 103AST asynchronous system trap 104AT access time 105AT advanced technology 106ATA advanced technology attachment 107ATAPI advanced technology attachment packet interface 108ATC address translation cache 109ATM asynchronous transfer mode 110ATX advanced technology extended 111AV anti virus 112AVB audio video bridging 113AVL Adelson-Velsky-Landis 114AVX advanced vector extensions 115BA byte align 116BAL basic assembly language 117BAR base address register 118BBS bulletin board system 119BCC blind carbon copy 120BCD binary coded decimal 121BCH boot console handler 122BCR byte count register 123BCS base configuration space 124BD baud 125BDD binary decision diagram 126BDI bit deinterleave 127BDUF big design up front 128BEDO burst extended data output 129BER basic encoding rules 130BER bit error {rate,ratio} 131BERT boot error record table 132BFB bidirectional forwarding detection 133BFD binary {file,format} descriptor 134BFKL big fscking kernel lock 135BFS breadth-first search 136BFT binary file transfer 137BGA ball grid array 138BGP Border Gateway Protocol 139BGPSEC BGP Security 140BIND Berkeley Internet Name Daemon 141BIOS Basic Input/Output System 142BIOS built-in operating system 143BIST built-in self-test 144BIU bus interface unit 145BKDG BIOS and kernel developer's guide 146BLAS basic linear algebra subprograms 147BLC back light control 148BLOB binary large object 149BM bus master 150BMC baseboard management controller 151BMIC bus master interface controller 152BN boundary neutral 153BNF Backus-Naur form 154BO binary output 155BOF beginning of file 156BOM beginning of message 157BOM byte order mark 158BP base pointer 159BP boot processor 160BPB BIOS parameter block 161BPDU bridge protocol data unit 162BPF Berkeley Packet Filter 163BPI bits per inch 164BPM business process modelling 165BPS bits per second 166BPSK binary phase shift keying 167BQS Berkeley quality software 168BRE basic regular expression 169BS backspace 170BS binary sequence 171BSA basic service area 172BSD Berkeley Software Distribution 173BSDP Boot Service Discovery Protocol 174BSF bit scan forward 175BSOD blue screen of death 176BSP binary space partition 177BSP board support package 178BSP bootstrap processor 179BSR bit scan reverse 180BSS basic service set 181BSS block started by symbol 182BSSID basic service set identifier 183BT BitTorrent 184BT Bluetooth 185BT bit test 186BTC bit test [and] complement 187BTM bus transport mechanism 188BTR bit test [and] reset 189BTS bit test [and] set 190BTS bug tracking system 191BW bandwidth 192BWM block-write mode 193BUAG big ugly ASCII graphic 194CA certificate authority 195CAD computer-aided design 196CAM computer assisted manufacturing 197CAM conditional access module 198CAM content addressable memory 199CARP Common Address Redundancy Protocol 200CAS column address strobe 201CAS compare and swap 202CAS computer algebra system 203CASE computer aided software engineering 204CAU control access unit 205CAV constant angular velocity 206CBC cipher block chaining 207CBR constant bit rate 208CC carbon copy 209CCD charge coupled device 210CCI co-channel interferer 211CCNUMA cache-coherent non-uniform memory access 212CCTL command completion time limit 213CD cache disable 214CD compact disc 215CDDA compact disc digital audio 216CDL compiler description language 217CDMA code division multiple access 218CDP Cisco Discovery Protocol 219CDRAM cache dynamic random access memory 220CER canonical encoding rules 221CE customer edge 222CF compact flash 223CFB cipher feedback 224CFG context-free grammar 225CFG control-flow graph 226CFI control-flow integrity sanitizer 227CG control gate 228CGA Color Graphics Adapter 229CGI common gateway interface 230CGN Carrier-Grade NAT 231CHAP Challenge-Handshake Authentication Protocol 232CHFS chip file system 233CHS cylinder/head/sector 234CI continuous integration 235CI {common,component} interface 236CIDR Classless Inter-Domain Routing 237CIF common intermediate format 238CIFS Common Internet File System 239CIL common intermediate language 240CIR carrier-to-interference ratio 241CIS contact image sensor 242CISC complex instruction set {computer,computing} 243CJK Chinese, Japanese, [and] Korean 244CLF common log format 245CLI command line interface 246CLI common language infrastructure 247CLR common language runtime 248CLS common language specification 249CLTT closed loop thermal throttling 250CLUT color look-up table 251CLV constant linear velocity 252CM configuration management 253CMA concert multithread architecture 254CMC chassis management controller 255CMC corrected machine check 256CMS {configuration,content,course} management system 257CMI control {management,method} interface 258CMOS complementary metal-oxide-semiconductor 259CMP chip multi-processing 260CMS content management system 261CMYK cyan magenta yellow black 262CN {common,canonical} name 263CNC computer numerical control 264CNR carrier-to-noise ratio 265COA change of authority 266COF current operating frequency 267COFDM coded orthogonal frequency division multiplexing 268COFF common object file format 269COM component object model 270COM computer on module 271COMA cache-only memory architecture 272CORBA common object request broker architecture 273COS class of service 274COW copy-on-write 275CP continuous pilot 276CPB core performance boost 277CPC central processor complex 278CPC cpu performance counters 279CPE common phase error 280CPE common platform enumeration 281CPER common platform error record 282CPG clock pulse generator 283CPI cycles per instruction 284CPL current privilege level 285CPLD complex programmable logic device 286CPP C preprocessor 287CPS characters per second 288CPS continuation-passing style 289CPT command pass through 290CPU central processing unit 291CR carriage return 292CRC cyclic redundancy check 293CRL carrier recovery loop 294CRLF carriage return line feed 295CRT cathode ray tube 296CRUD create, read, update, and delete 297CS cable select 298CS chip select 299CS code segment 300CS computer science 301CSDL {common,conceptual} schema definition language 302CSI channel state information 303CSI common system interface 304CSMA carrier sense multiple access 305CSMA/CA carrier sense multiple access with collision avoidance 306CSMA/CD carrier sense multiple access with collision detection 307CSP communicating sequential processes 308CSP content security policy 309CSP constrain satisfaction problems 310CSP cryptographic service provider 311CSR control [and] status registers 312CSRG Computer Systems Research Group 313CSS cascading style sheets 314CST common spanning tree 315CSV comma-separated values 316CTF compact c type format 317CTM close to metal 318CTR counter [mode] 319CTS clear to send 320CTS common type system 321CUA common user access 322CUT coordinated universal time 323CV control voltage 324CVE common vulnerabilities and exposures 325CVS Concurrent Versions System 326DA destination address 327DAA distributed application architecture 328DAB digital audio broadcasting 329DAC digital [to] analog converter 330DAC discretionary access control 331DAD duplicate address detection 332DANE DNS-based Authentication of Named Entities 333DAO disk at once 334DAP Directory Access Protocol 335DAT digital audio tape 336DAT dynamic acceleration technology 337DB database 338DBA database administrator 339DBA dynamic bandwidth allocation 340DBB data bus buffer 341DBC design by contract 342DBL dynamic buffer limiting 343DBMS database management system 344DBS database server 345DC direct current 346DCC Direct Client-to-Client 347DCC direct cable connect 348DCD data carrier detect 349DCE data control equipment 350DCE distributed computing environment 351DCIM data center infrastructure management 352DCIM digital camera images 353DCL Digital Command Language 354DCOM distributed component object model 355DCOP Desktop COmmunication Protocol 356DCS data collection systems 357DCT discrete cosine transform 358DCU data cache unit 359DDC display data channel 360DDE dynamic data exchange 361DDK device driver kit 362DDL data description language 363DDR double data rate 364DDS direct digital sound 365DDWG Digital Display Working Group 366DE debugging extensions 367DE desktop environment 368DEA data encryption algorithm 369DEC Digital Equipment Corporation 370DEK data encryption key 371DEP data execution prevention 372DER distinguished encoding rules 373DES Data Encryption Standard 374DF don't fragment 375DFA deterministic finite automaton 376DFC data flow control 377DFS depth first search 378DFS distributed file system 379DFSAN Data Flow Sanitizer 380DFT diagnostic function test 381DFT discrete Fourier transform 382DGL data generation language 383DH Diffie-Hellman 384DHCP Dynamic Host Configuration Protocol 385DIFS distributed inter-frame space 386DIMM dual inline memory module 387DIRT design in real time 388DL diode logic 389DL discrete logarithm 390DL download 391DLCI data link connection identifier 392DLE data link escape 393DLL dynamic link library 394DLP discrete logarithm problem 395DMA direct memory access 396DMI desktop management interface 397DMS document management system 398DMT discrete multitone modulation 399DMU data management layer 400DNARD Digital network appliance reference design 401DND drag and drop 402DNLC directory name lookup cache 403DNS Domain Name System 404DNSSEC DNS Security Extensions 405DOE distributed object environment 406DOF data over fibre 407DOM document object model 408DOS denial of service 409DOS disk operating system 410DP DisplayPort 411DPC deferred procedure call 412DPCM differential pulse code modulation 413DPD dead peer detection 414DPI deep packet inspection 415DPI dots per inch 416DPL descriptor privilege level 417DPS Display PostScript 418DPST display power savings technology 419DRAAS disaster recovery as a service 420DRAM dynamic random access memory 421DRBG deterministic random bit generator 422DRI direct rendering infrastructure 423DRM digital rights management 424DRRS display refresh rate switching 425DS debug store 426DS differentiated services 427DSA digital signature algorithm 428DSAP destination service access point 429DSB double-sideband modulation 430DSCP differentiated services code point 431DSDT differentiated system descriptor table 432DSF device special file 433DSL dataset and snapshot layer 434DSL digital subscriber line 435DSL domain specific language 436DSLAM digital subscriber line access multiplexer 437DSN delivery status notification 438DSO dynamic shared object 439DSP digital signal processor 440DSSS direct sequence spread spectrum 441DTD document type definition 442DTE data terminal equipment 443DTE dumb terminal emulator 444DTL diode-transistor logic 445DTLS datagram transport layer security 446DTS digital thermal sensor 447DUT device under test 448DVB digital video broadcasting 449DVCS distributed version control system 450DVD digital versatile disc 451DVFS dynamic voltage and frequency scaling 452DVI device independent 453DVI Digital Visual Interface 454DVR digital video recorder 455E-XER extended XML encoding rules 456EABI embedded-application binary interface 457EAI Email Address Internationalization 458EAI Enterprise Application Integration 459EAP Extensible Authentication Protocol 460EAPOL EAP over Lan 461EAV entity-attribute-value model 462EAV ethernet audio/video bridging 463EBCDIC Extended Binary Coded Decimal Interchange Code 464EBDA Extended BIOS Data Area 465EBNF extended backus-naur form 466EBR extended boot record 467EC elliptic curve 468ECC elliptic curve cryptography 469ECC error correction code 470ECDH elliptic curve Diffie-Hellman 471ECDL elliptic curve discrete logarithm 472ECDLP elliptic curve discrete logarithm problem 473ECDSA elliptic curve digital signature algorithm 474ECL emitter-coupled logic 475ECN explicit congestion notification 476ECP enhanced capability port 477ECS enhanced chip set 478ECS extended configuration space 479EDAC error detection and correction 480EDAT enhanced dynamic acceleration technology 481EdDSA Edwards curve digital signature algorithm 482EDGE explicit data graph execution 483EDID extended display identification data 484EDO extended data out 485EDS electronical data sheet 486EEE energy efficient ethernet 487EEPROM electrically erasable programmable read only memory 488EFI extensible firmware interface 489EFL emitter follower logic 490EFM eight to fourteen modulation 491EFS extent file system 492EGA Enhanced Graphics Adapter 493EGP exterior gateway protocol 494EH extension header 495EIDE enhanced IDE 496EISA extended industry standard architecture 497EINJ error injection table 498ELF executable and linking format 499ELS entry level system 500EMI electro-magnetic interference 501EMP electro-magnetic pulse 502EMR electro-magnetic radiation 503EMACS Editor MACroS 504EOF end of file 505EOI end of interrupt 506EOIS end of interactive support 507EOL end of life 508EOL end of line 509EOT end of transmission 510EPIC explicitly parallel instruction computing 511EPP enhanced parallel port 512EPRML extended partial response, maximum likelihood 513EPROM erasable programmable read only memory 514ERC error recovery control 515ERD emergency recovery disk 516ERD entity relationship diagram 517ERE extended regular expression 518ERST error record serialization table 519ESAN Efficiency Sanitizer 520ESB enterprise service bus 521ESDI enhanced small disk interface 522ESDRAM enhanced synchronous dynamic random access memory 523ESI enclosure services interface 524ESS electronic switching system 525ESS extended service set 526ESSID extended service set identifier 527EST enhanced speedstep 528ETL extract, transform, load 529EU execution unit 530EULA end user license agreement 531FAT file allocation table 532FBRAM frame buffer random access memory 533FCIF full common intermediate format 534FCL fiber channel loop 535FCS frame check sequence 536FDC floppy disk controller 537FDD floppy disk drive 538FDDI fiber distributed data interface 539FDE full disk encryption 540FDT flattened device tree 541FEA finite element analysis 542FEC forward error correction 543FET field-effect transistor 544FF finite field 545FF form feed 546FFDH finite-field Diffie-Hellman 547FFH functional fixed hardware 548FFI foreign function interface 549FFM focus follows mouse 550FFS Fast File System 551FFS find first set 552FFT fast Fourier transform 553FG floating gate 554FHSS frequency hop spread spectrum 555FID frequency identifier 556FIFO first in, first out 557FILO first in, last out 558FIPS Federal Information Processing Standards 559FIR fast infrared 560FLOPS floating [point] operations per second 561FLOSS free/libre/open source software 562FM frequency modulation 563FMR false match rate 564FOSS free/open source software 565FPGA field programmable gate array 566FPM fast page mode 567FPR floating point register 568FPU floating point unit 569FQDN fully qualified domain name 570FRR false rejection rate 571FRU field replaceable unit 572FS file system 573FSB front side bus 574FSCK file system check 575FSF Free Software Foundation 576FSK frequency shift keying 577FSM finite-state machine 578FTA fault tree analysis 579FTL flash translation layer 580FTP File Transfer Protocol 581FTPS File Transfer Protocol Secure 582FUS fast user switching 583FWH firmware hub 584FWS folding white space 585GAL generic array logic 586GAS generic address structure 587GC garbage collector 588GCM Galois counter mode 589GCR group-coded recording 590GDI Graphics Device Interface 591GDT global descriptor table 592GEM graphics environment manager 593GEM graphics execution manager 594GENA general event notification architecture 595GHC Glasgow Haskell compiler 596GHES generic hardware error source 597GIC generic interrupt controller 598GID group identifier 599GIF graphics interchange format 600GMCH graphics and memory controller hub 601GNU GNU's Not Unix 602GOP graphics output protocol 603GOT global offset table 604GPE general purpose event 605GPF general protection fault 606GPG GNU Privacy Guard 607GPL [GNU] General Public License 608GPR general purpose register 609GPS generalized processor sharing 610GPT GUID partition table 611GPU graphics processing unit 612GR golden ratio 613GRE generic routing encapsulation 614GSI global system interrupt 615GUI graphical user interface 616GUID globally unique identifier 617GVFS git virtual file system 618HA high availability 619HAL hardware abstraction layer 620HAT hashed array tree 621HATEOAS hypermedia as the engine of application state 622HBA host bus adapter 623HCF halt and catch fire 624HCI host controller interface 625HCI human-computer interaction 626HCL hardware compatibility list 627HDCP High-bandwidth Digital Content Protection 628HDD hard disk drive 629HDL hardware description language 630HDMI High-Definition Multimedia Interface 631HDTV high-definition television 632HECI host embedded controller interface 633HEST hardware error source table 634HF high frequency 635HFM highest frequency mode 636HFS hierarchical file system 637HID human interface device 638HKP HTTP Keyserver Protocol 639HLL high-level language 640HMA high memory area 641HMI human-machine interface 642HOOD hierarchical object oriented design 643HP Hewlett-Packard 644HPC high performance computing 645HPET high precision event timer 646HSM hardware security module 647HSM hierarchical storage management 648HT hyper-threading 649HTC hardware thermal control 650HTCC high temperature co-fired ceramic 651HTML HyperText Markup Language 652HTT hyper-threading technology 653HTTP Hypertext Transfer Protocol 654HTTPS Hypertext Transfer Protocol Secure 655HVM hardware virtual machine 656HVDS High-Voltage Differential Signaling 657HWASAN Hardware-assisted Address Sanitizer 658HZ Hertz 659I2O intelligent input/output 660IA information assurance 661IAAS infrastructure as a service 662IANA Internet Assigned Numbers Authority 663IBC iterated block cipher 664IBM International Business Machines 665IBS instruction based sampling 666IBSS independent basic service set 667IC integrated circuit 668ICA independent computer architecture 669ICB Internet Citizen's Band 670ICE in-circuit emulator 671ICE internal compiler error 672ICH I/O controller hub 673ICMP Internet Control Message Protocol 674ICT information and communications technology 675ICW initialization command word 676IDA Intel dynamic acceleration 677IDCMP Intuition direct communication message port 678IDE integrated development environment 679IDE integrated drive electronics 680IDPS intrusion detection [and] prevention system 681IDRP inter-domain routing protocol 682IDS intrusion detection system 683IDT interrupt descriptor table 684IE Internet Explorer 685IEC International Electrotechnical Commission 686IEEE Institute of Electrical and Electronics Engineers 687IESG Internet Engineering Steering Group 688IETF Internet Engineering Task Force 689IF intermediate frequency 690IFCM isochronous flow control mode 691IFF Interchange File Format 692IFS internal field separator 693IGD Internet gateway device 694IGMP Internet Group Management Protocol 695IGP interior gateway protocol 696IHV independent hardware vendor 697IKE Internet key exchange 698ILM internal loopback mode 699ILOM integrated lights-out management 700ILP instruction level parallelism 701IM instant messaging 702IMAP Internet Message Access Protocol 703IMC integrated memory controller 704IMCR interrupt mode configuration register 705IMR interrupt mask register 706IMS information management system 707IMSI international mobile subscriber identity 708INCITS InterNational Committee for Information Technology Standards 709IO input/output 710IOCTL input/output control 711IOM input/output managers 712IOMMU input/output memory management unit 713IOT Internet of Things 714IP Internet Protocol 715IP intellectual property 716IPC instructions per cycle 717IPC interprocess communication 718IPCF interprocess communication facility 719IPE integrated programming environment 720IPI intelligent peripheral interface 721IPI interprocessor interrupt 722IPL Initial Program Load 723IPL Interrupt Priority Level 724IPMB Intelligent Platform Management Bus 725IPMI Intelligent Platform Management Interface 726IPNG Internet Protocol, Next Generation 727IPS in-plane switching 728IPS intrusion prevention system 729IPSEC Internet Protocol Security 730IRC Internet Relay Chat 731IRDA infrared data association 732IRDP ICMP Router Discovery Protocol 733IRQ interrupt request 734IRQL interrupt request level 735IRR interrupt request register 736IRTF Internet Research Task Force 737IS information system 738ISA industry standard architecture 739ISA instruction set architecture 740ISE instant secure erase 741ISDN integrated services digital network 742ISI inter-symbol interference 743ISL initial system load 744ISM industrial, scientific, [and] medical 745ISN initial serial number 746ISO International Standards Organization 747ISOC Internet Society 748ISP Internet service provider 749ISR in-service register 750ISR interrupt service routine 751IST internal spanning tree 752IST interrupt stack table 753ISV independent software vendor 754IT information technology 755ITB Intel Turbo Boost 756ITIL information technology infrastructure library 757ITP in-target probe 758ITSM IT service management 759IV initialization vector 760IVT interrupt vector table 761JBOD just a bunch of disks 762JCL Job Control Language 763JFET junction [gate] field-effect transistor 764JIT just in time 765JPEG Joint Photographic Experts Group 766JRE Java Runtime Environment 767JSON JavaScript Object Notation 768JTAG joint test action group 769KASLR kernel address space layout randomization 770KB keyboard 771KB kilobyte 772KBD keyboard 773KBD kilobaud 774KCS keyboard controller style 775KLOC thousand lines of code 776KMS kernel-mode setting 777KPI kernel programming interface 778KVA kernel virtual address 779KVM kernel virtual machine 780KVM kernel virtual memory 781KVM keyboard, video, [and] mouse 782L2CAP link layer control and adaptation protocol 783LAMP Linux Apache MySQL {Perl,PHP,Python} 784LAN local area network 785LAPIC local advanced programmable interrupt controller 786LAR load access rights 787LBA logical block addressing 788LBNF labeled backus-naur form 789LBS location-based service 790LCD liquid crystal display 791LCP link control protocol 792LDA local delivery agent 793LDAP Lightweight Directory Access Protocol 794LDR light-dependent resistor 795LDT local descriptor table 796LE logical extent 797LED light emitting diode 798LELL low energy link layer 799LER label edge router 800LF line feed 801LF low frequency 802LFM lowest frequency mode 803LFN long file names 804LFO low-frequency oscillation 805LFS log-structured file system 806LFU least frequently used 807LHP loop heat pipe 808LIF logical interchange format 809LIFO last in, first out 810LILO LInux LOader 811LILO last in, last out 812LINT local interrupt 813LIR local Internet registry 814LISP LISt Processor 815LISP Locator/ID Separation Protocol 816LKM {Linux,loadable} kernel module 817LKML Linux kernel mailing list 818LL load linked 819LL/SC load linked/store conditional 820LLC logical link control 821LLD low-level design 822LLDD low-level design document 823LLDP link layer discovery protocol 824LLF low level format 825LLMNR link-local multicast name resolution 826LLVM Low Level Virtual Machine 827LM long mode 828LMI local management interface 829LMM link management mode 830LMP link management protocol 831LNO loop nest optimization 832LOC lines of code 833LOM lights-out management 834LPE Linux performance events 835LPC low pin count 836LPS local positioning system 837LRC longitudinal redundancy check 838LRM left-to-right mark 839LRO left-to-right override 840LRU least recently used 841LS link state 842LSAN Leak Sanitizer 843LSB Linux standards base 844LSB least significant {bit,byte} 845LSI large scale integration 846LSL load segment limit 847LSM log structured merge 848LSN Large Scale NAT 849LSN log sequence number 850LSR label switch router 851LTCC low temperature co-fired ceramic 852LTO linear tape-open 853LTO link time optimization 854LTR left to right 855LTR load task register 856LTR letter(-sized paper) 857LTS long term support 858LUA Lua Uppercase Accident 859LUN logical unit number 860LV logical volume 861LVM logical volume management 862LVT local vector table 863LVDS Low-Voltage Differential Signaling 864LWP light-weight process 865LZSS Lempel Ziv Storer Szymanski 866LZW Lempel Ziv Welch 867MAB MAC authentication bypass 868MAC mandatory access control 869MAC {media,medium} access control 870MAC message authentication {check,code} 871MADT multiple APIC descriptor table 872MAMR microwave-assisted magnetic recording 873MB megabyte 874MBA multi-boot agent 875MBR master boot record 876MBS megabits per second 877MC memory controller 878MCA machine check architecture 879MCA MicroChannel architecture 880MCC multiversion concurrency control 881MCE machine check exception 882MCGA Multi-Color Graphics Array 883MCH memory controller hub 884MCLAG multi-chassis link aggregation 885MCM multi-chip module 886MCQ memory controlled queue 887MD machine-dependent 888MD-SAL model-driven service abstraction layer 889MDA mail delivery agent 890MDA Monochrome Display Adapter 891MDC Management Data Clock 892MDI Medium Dependent Interface 893MDI-X Medium Dependent Interface Crossover 894MDIO Management Data Input/Output 895MDMX MIPS Digital Media eXtension 896MDRAM multibank dynamic random access memory 897MESI modified, exclusive, shared, invalid 898MFC merge from current 899MFC Microsoft Foundation Classes 900MFM modified frequency modulation 901MFU most frequently used 902MGCP media gateway control protocol 903MI machine-independent 904MI machine interface 905MIB management information base 906MIC message integrity {check,code} 907MID mobile Internet device 908MIDI musical instrument digital interface 909MIF management information format 910MII media independent interface 911MIM man in the middle 912MIMD multiple instruction, multiple data 913MIME Multipurpose Internet Mail Extensions 914MIMO multiple input multiple output 915MIPS million instructions per second 916MIPS Microprocessor without Interlocked Pipeline Stages 917MISD multiple instruction, single data 918MIT Massachusetts Institute of Technology 919MITM man in the middle 920ML machine language 921ML machine learning 922ML mailing list 923ML markup language 924ML maximum likelihood 925MLC multi-level cell 926MLD multicast listener discovery 927MLHP micro loop heat pipe 928MMF multi-mode fiber 929MMIC monolithic microwave integrated circuit 930MMIO memory mapped input/output 931MMORPG massive multiplayer online role playing game 932MMU memory management unit 933MMX matrix math extension 934MMX multimedia extension 935MMX multiple math extension 936MO magneto-optical 937MOESI modified, owned, exclusive, shared, invalid 938MOF maximum operating frequency 939MOSFET metal-oxide-semiconductor field-effect transistor 940MOSI modified, owned, shared, invalid 941MP multi-platform 942MP multiplayer 943MP {multiprocessing,multiprocessor} 944MPEG moving picture experts group 945MPI message passing interface 946MPLS Multiprotocol Label Switching 947MPP massively parallel processor 948MPS memory pool system 949MPS multiprocessor specification 950MQTT Message Queuing Telemetry Transport 951MR modem ready 952MRO method resolution order 953MRU most recently used 954MS Microsoft 955MSAN Memory Sanitizer 956MSB most significant {bit,byte} 957MSC message sequence chart 958MSE mean square error 959MSF minutes seconds frames 960MSI message signaled interrupt 961MSI modified, shared, invalid 962MSR {machine state,model-specific} register 963MSS maximum segment size 964MSTP Multiple Spanning Tree Protocol 965MT machine translation 966MTA mail transfer agent 967MTBF mean time between failures 968MTP media transfer protocol 969MTRR memory type range register 970MTTF mean time to failure 971MTU maximum transmission unit 972MUA mail user agent 973MUD multi-user domain 974MVCC multiversion concurrency control 975MWE module width encoding 976MX mail exchange 977NACK negative acknowledgement 978NAK negative acknowledgement 979NAN not a number 980NAPT Network Address Port Translation 981NAS network attached storage 982NAT network address translation 983NAV network allocation vector 984NC numerical control 985NC-SI network controller sideband interface 986NCO numerically-controlled oscillator 987NCP Network Control Protocol 988NCSI network connectivity status indicator 989NCQ native command queuing 990ND neighbor discovery 991NDFA nondeterministic finite automaton 992NE numeric error 993NEWS Network extensible Window System 994NFA nondeterministic finite automaton 995NFC near-field communication 996NFCI no functional change intended 997NFS network file system 998NFV network function virtualization 999NIA next instruction address 1000NIC network information center 1001NIC network interface card 1002NIDS network intrusion detection system 1003NIP network interface protocol 1004NIPS network intrusion prevention system 1005NIS network information service 1006NIST National Institute of Standards and Technology 1007NLS native language support 1008NMI non-maskable interrupt 1009NNTP Network News Transfer Protocol 1010NOC network operations center 1011NOP no operation 1012NOS network operating system 1013NP nondeterministic polynomial time 1014NRND not recommended for new designs 1015NRZ non-return to zero 1016NSA nation-state adversary 1017NSA no such agency 1018NSA National Security Agency 1019NTM non-deterministic Turing machine 1020NTP Network Time Protocol 1021NUMA non-uniform memory access 1022NVMM NetBSD Virtual Machine Monitor 1023NVMM non-volatile main memory 1024NVRAM non-volatile random access memory 1025NW not write-through 1026NX no execute 1027OAEP optimal asymmetric encryption padding 1028OAM operations, administration, and {management,maintenance} 1029OBO off by one 1030OBOE off by one error 1031OCL object constraint language 1032OCR optical character recognition 1033ODE offline device environment 1034ODM object data manager 1035ODCM on-demand clock modulation 1036ODT on-die termination 1037OEM original equipment manufacturer 1038OFB output feedback 1039OFDM orthogonal frequency division multiplexing 1040OFET organic field-effect transistor 1041OLAP online analytical processing 1042OLE object linking and embedding 1043OLTP online transaction processing 1044ONFI open nand flash interface 1045OO OpenOffice 1046OO object oriented 1047OOB out of band 1048OOE out of order execution 1049OOM out of memory 1050OOO OpenOffice.org 1051OOP object oriented programming 1052OOPS object oriented programming systems 1053OOSE object oriented software engineering 1054OPM operations per minute 1055OPS operations per second 1056OQL Object Query Language 1057ORB object request broker 1058ORM object-relational mapping 1059OS operating system 1060OSD open source definition 1061OSF open software foundation 1062OSI Open Source Initiative 1063OSI open systems interconnection 1064OSPF open shortest path first 1065OSPM OS power management 1066OSS open sound system 1067OSS open source software 1068OSVW operating system visible workarounds 1069OTP one time password 1070OTP open telecom platform 1071OU organizational unit 1072OUI organizationally unique identifier 1073OWL Web Ontology Language 1074P2P PCI to PCI 1075P2P peer to peer 1076PA phase accumulator 1077PA physical address 1078PAAS platform as a service 1079PAC phase-amplitude converter 1080PAE physical address extension 1081PAL phase alternating line 1082PAL programmable array logic 1083PAM pluggable authentication modules 1084PAM pulse amplitude modulation 1085PAP password authentication protocol 1086PAT page attribute table 1087PAT port address translation 1088PATA parallel ATA 1089PAX portable archive exchange 1090PBE pending break encoding 1091PBE programming by example 1092PC personal computer 1093PC program counter 1094PCB printed circuit board 1095PCB process control block 1096PCB Protocol Control Block 1097PCC Portable C Compiler 1098PCD page-level cache disable 1099PCE path computation element 1100PCE performance-monitor counter enable 1101PCEP Path Computation Element Protocol 1102PCH platform controller hub 1103PCI peripheral component interconnect 1104PCM phase change memory 1105PCM pulse code modulation 1106PCMCIA Personal Computer Memory Card International Association 1107PCP Port Control Protocol 1108PD public domain 1109PDA personal digital assistant 1110PDA pushdown automaton 1111PDAG propositional directed acyclic graph 1112PDB power distribution board 1113PDF portable document format 1114PDM pulse-duration modulation 1115PDN pull-down network 1116PDP page {descriptor,directory} page 1117PDS product data sheet 1118PDU protocol data unit 1119PE protection enable 1120PE provider edge 1121PEAP Protected EAP 1122PECI platform environment control interface 1123PEP protocol extension protocol 1124PER packed encoding rules 1125PFS perfect forward secrecy 1126PGAS partitioned global address space 1127PGE page global enable 1128PGP Pretty Good Privacy 1129PHB PCI host bridge 1130PHP PHP: Hypertext Preprocessor 1131PIC performance instrumentation counters 1132PIC position independent code 1133PIC programmable interrupt controller 1134PICNIC problem in chair, not in computer 1135PID process id 1136PIE position independent executable 1137PIL Priority Interrupt Level 1138PIM personal information manager 1139PIM platform-independent model 1140PIO programmed input/output 1141PIPT physically indexed, physically tagged 1142PIQ prefetch input queue 1143PIT programmable interrupt timer 1144PIV personal identity verification 1145PIX Private Internet eXchange 1146PKCS public-key cryptography standards 1147PKI public key infrastructure 1148PLC programmable logic controller 1149PLD programmable logic device 1150PLL phase locked loop 1151PLRU pseudo LRU 1152PLTM package level thermal management 1153PM power management 1154PM {phase,pulse} modulation 1155PMC performance monitoring counters 1156PME power management event 1157PMEG page map entry group 1158PMI performance monitoring infrastructure 1159PMI platform management interrupt 1160PMIC power management integrated circut 1161PMIO port-mapped input/output 1162PMT photo-multiplier tube 1163PMU performance monitoring units 1164PMU power management unit 1165PNG portable network graphics 1166PNP plug and play 1167POE power over ethernet 1168POF probability of failure 1169POP Post Office Protocol 1170POP power on password 1171POSIX Portable Operating System Interface [for Unix] 1172POST power on self test 1173POTS plain old telephone system 1174POWER Performance Optimization With Enhanced RISC 1175POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1176PP pair programming 1177PPB PCI [to] PCI bridge 1178PPC PowerPC 1179PPC Power Performance Computing 1180PPI pixels per inch 1181PPM pages per minute 1182PPP Point-to-Point Protocol 1183PPPOA Point-to-Point Protocol over ATM 1184PPPOE Point-to-Point Protocol over Ethernet 1185PPU physics processing unit 1186PRAM Parameter RAM 1187PRBS pseudorandom bit sequence 1188PRG pseudorandom generator 1189PRF pseudorandom function [family] 1190PRML partial response, maximum likelihood 1191PRN pseudorandom {noise,number} 1192PRNG pseudorandom number generator 1193PROM programmable read only memory 1194PRP pseudorandom permutation 1195PRU Programmable Realtime Unit 1196PS PostScript 1197PSD power spectral density 1198PSE page size extensions 1199PSK phase shift keying 1200PSK pre-shared key 1201PSTN public switched telephone network 1202PSW program status word 1203PTE page table entry 1204PTLA pseudo top level aggregator 1205PTP page table page 1206PTV perceived target value 1207PU processing unit 1208PUC personal unblocking code 1209PUN physical unit number 1210PV physical volume 1211PVC permanent virtual circuit 1212PVG physical volume group 1213PVI protected-mode virtual interrupt 1214PVST Per-VLAN Spanning Tree 1215PWM pulse width modulation 1216PXE preboot execution environment 1217QA quality assurance 1218QAM quadrature amplitude modulation 1219QAM quality assurance management 1220QBE query by example 1221QC quality control 1222QDI quasi delay insensitive 1223QCIF quarter common intermediate format 1224QOS quality of service 1225QVL qualified vendor list 1226R/O read only 1227R/W read/write 1228RA receiver address 1229RA remote assistance 1230RA resource affinity 1231RA router advertisement 1232RAD rapid application development 1233RAID redundant array of {independent,inexpensive} disks 1234RAM random access memory 1235RAS reliability, availability and serviceability 1236RAS remote access service 1237RAS restartable atomic sequence 1238RAS row address strobe 1239RBF radial basis function 1240RBNF routing backus-naur form 1241RBT red-black tree 1242RC release candidate 1243RC remote control 1244RC run commands 1245RCS Revision Control System 1246RCS revision control system 1247RCU read, copy, update 1248RDB Rigid Disk Block 1249RDBMS relational database management system 1250RDF Resource Description Framework 1251RDM relational data model 1252RDMA remote direct memory access 1253RDRAM Rambus DRAM 1254RE regular expression 1255REST representational state transfer 1256RF radio frequency 1257RFI radio frequency interference 1258RFO request for ownership 1259RFU reserved for future use 1260RGB red green blue 1261RGBA red green blue alpha 1262RGMII reduced gigabit media independent interface 1263RH read hit 1264RHEL Red Hat Enterprise Linux 1265RHL Red Hat Linux 1266RIB routing information base 1267RIFF Resource Interchange File Format 1268RIP Raster Image Processor 1269RIP Routing Information Protocol 1270RIR regional Internet registry 1271RISC reduced instruction set {computer,computing} 1272RKM ROM Kernel Manual 1273RLE run length encoding 1274RLL run length limited 1275RLO right-to-left override 1276RM read miss 1277RMCP Remote Management Control Protocol 1278RMI remote method invocation 1279RMO Relaxed Memory Ordering 1280RMPM rapid memory power management 1281RMS root mean square 1282RMW read, modify, write 1283RNG random number generator 1284ROM read only memory 1285RPC remote procedure call 1286RPKI resource PKI 1287RPL requested privilege level 1288RPM revolutions per minute 1289RPN reverse Polish notation 1290RPVST Rapid Per-VLAN Spanning Tree 1291RR random replacement 1292RR round robin 1293RS relay station 1294RSA Rivest, Shamir, [and] Adleman 1295RSIP Realm Specific IP 1296RSN Robust Secure Network 1297RSS really simple syndication 1298RSS residual sum of squares 1299RSTP Rapid Spanning Tree Protocol 1300RT real time 1301RTC real time clock 1302RTC real time computing 1303RTF rich text format 1304RTL register transfer language 1305RTL resistor-transistor logic 1306RTL right to left 1307RTOS real time operating system 1308RTS request to send 1309RTT round trip time 1310RUP rational unified process 1311RW Rabin-Williams 1312RWM read-write memory 1313RX {receive,receiver} 1314S/PDIF Sony/Philips Digital Interface Format 1315SA security advisory 1316SA security association 1317SA source address 1318SA structured analysis 1319SAAS software as a service 1320SACD super audio compact disc 1321SAD security association database 1322SAL {service,system} abstraction layer 1323SAM serial access memory 1324SAM sum addressed memory 1325SAML security assertion markup language 1326SAN storage area network 1327SAP service access point 1328SAPIC streamlined advanced programmable interrupt controller 1329SASD structured analysis, structured design 1330SASI Shugart Associates System Interface 1331SASL simple authentication [and] security layer 1332SATA serial advanced technology attachment 1333SAX simple API for XML 1334SB sound blaster 1335SBU standard build unit 1336SC store conditional 1337SCA source code analyzer 1338SCADA supervisory control and data acquisition 1339SCC single chip cloud 1340SCC source code control 1341SCCS Source Code Control System 1342SCI scalable coherent interface 1343SCI system control interrupt 1344SCM software configuration management 1345SCM source code management 1346SCM storage-class memory 1347SCO synchronous connection orientated 1348SCP secure copy 1349SCSI Small Computer System Interface 1350SCTP Stream Control Transmission Protocol 1351SDEI software delegated exception interface 1352SDI symbol deinterleave 1353SDK software development kit 1354SDL Simple Declarative Language 1355SDL Simple Direct-media Layer 1356SDLC {software,system,systems} development life cycle 1357SDN software defined networking 1358SDP Session Description Protocol 1359SDRAM synchronous dynamic random access memory 1360SDS software defined storage 1361SDT syntax-directed translation 1362SEA synchronous external abort 1363SEGV segmentation violation 1364SED self-encrypting drive 1365SED stream editor 1366SEO search engine optimization 1367SES SCSI enclosure services 1368SFC sequential function chart 1369SFI simple firmware interface 1370SFI software fault isolation 1371SFTP SSH File Transfer Protocol 1372SFTP Serial File Transfer Protocol 1373SFTP Simple File Transfer Protocol 1374SGMII serial gigabit media independent interface 1375SGRAM synchronous graphics random access memory 1376SHA secure hash algorithm 1377SIDH supersingular isogeny Diffie-Hellman 1378SIEM security information and event management 1379SIF source input format 1380SIFS short inter-frame space 1381SIM subscriber identity module 1382SIMD single instruction, multiple data 1383SIMM single inline memory module 1384SIP Session Initiation Protocol 1385SIR signal-to-interference ratio 1386SIR slow infrared 1387SISD single instruction, single data 1388SLAAC stateless address auto-configuration 1389SLC single-level cell 1390SLDRAM synchronous-link dynamic random access memory 1391SLED single large expensive disk 1392SLI scalable link interface 1393SLI scan-line interleave 1394SLIC system license internal code 1395SLOC source lines of code 1396SLRU segmented LRU 1397SMA smart memory access 1398SMAF system management action field 1399SMAP Simple Mail Access Protocol 1400SMAP supervisor mode access prevention 1401SMART self-monitoring analysis and reporting technology 1402SMB Server Message Block 1403SMB system management bus 1404SMBIOS System Management BIOS 1405SMC system management controller 1406SMD storage module device 1407SMEP supervisor mode execution protection 1408SMF single mode fiber 1409SMI structure of management information 1410SMI system management interrupt 1411SMM system management mode 1412SMP serial management protocol 1413SMP symmetric multiprocessing 1414SMT simultaneous multithreading 1415SMTP Simple Mail Transfer Protocol 1416SMU system management unit 1417SNA systems network architecture 1418SNAP Sub-Network Access Protocol 1419SNIA Storage Networking Industry Association 1420SNMP Simple Network Management Protocol 1421SNR signal-to-noise ratio 1422SOA service oriented architecture 1423SOAP Simple Object Access Protocol 1424SOC system on chip 1425SOF start of frame 1426SOH start of header 1427SOHO small office/home office 1428SOL serial over LAN 1429SOM system on module 1430SP service pack 1431SP stack pointer 1432SPA storage pool allocator 1433SPARC scalable processor architecture 1434SPARQL SPARQL Protocol and RDF Query Language 1435SPD security policy database 1436SPD serial presence detect 1437SPDIF Sony/Philips digital interface format 1438SPI serial peripheral interface 1439SPI stateful packet inspection 1440SPL system interrupt priority level 1441SPL spinlock 1442SPMD single process, multiple data 1443SPR special purpose register 1444SPT sectors per track 1445SQA software quality assurance 1446SQCIF sub quarter common intermediate format 1447SQL Structured Query Language 1448SRAM static random access memory 1449SRC sample rate conversion 1450SRP SCSI RDMA protocol 1451SS self-snoop 1452SS stack segment 1453SSA static single assignment 1454SSAP source service access point 1455SSB single-sideband modulation 1456SSD solid state drive 1457SSE streaming SIMD extensions 1458SSFDC solid state floppy disc card 1459SSH secure shell 1460SSI server side includes 1461SSID service set identifier 1462SSL secure sockets layer 1463SSP stack smashing protection 1464STC software thermal control 1465STD state transition diagram 1466STOMP Streaming Text Oriented Messaging Protocol 1467STP Spanning Tree Protocol 1468STP shielded twisted pair 1469SUN Stanford University Network 1470SUS Single Unix Specification 1471SUT system under test 1472SVC switched virtual circuit 1473SVG scalable vector graphics 1474SVGA Super Video Graphics Array 1475SVI {switch,switched} virtual interface 1476SVM secure virtual machine 1477SVM support vector machine 1478SVR System V Release 1479SVS Separate Virtual Space 1480SWF Shockwave Flash 1481SWIG simplified wrapper [and] interface generator 1482SYR symbol timing recovery 1483TA test assertion 1484TA transmitter address 1485TAI international atomic time 1486TAO track at once 1487TAOCP The Art of Computer Programming 1488TAP Test Anything Protocol 1489TAS test and set 1490TB terabyte 1491TBNF transitional backus-naur form 1492TCB trace capture buffer 1493TCB trusted computing base 1494TCC thermal control circuit 1495TCL tool command language 1496TCP Transmission Control Protocol 1497TCQ tagged command queueing 1498TDC time [to] digital converter 1499TDD test-driven development 1500TDD time division duplex 1501TDM time division multiplexing 1502TDMA time division multiple access 1503TDOA time difference of arrival 1504TDP thermal design {point,power} 1505TDR time-domain reflectometry 1506TECO Text Editor and Corrector 1507TFT thin film transistor 1508TFTP Trivial File Transfer Protocol 1509TIAS try it and see 1510TIFF tagged image file format 1511TITS try it to see 1512TK temporal key 1513TKIP Temporal Key Integrity Protocol 1514TLA top level aggregator 1515TLB translation lookaside buffer 1516TLD top level domain 1517TLER time-limited error recovery 1518TLI transport layer interface 1519TLS thread local storage 1520TLS transport layer security 1521TM Turing machine 1522TM thermal monitor 1523TMG transmogrifier 1524TMDS transition minimized differential signaling 1525TMO timeout 1526TOD time of day 1527TOS terms of service 1528TOS trusted operating system 1529TOS type of service 1530TP transaction processing 1531TPI tracks per inch 1532TPM transactions per minute 1533TPM trusted platform module 1534TPR task priority register 1535TPS transactions per second 1536TPS transmission parameters signaling 1537TR task register 1538TR token ring 1539TRL timing recovery loop 1540TRNG true random number generator 1541TS terminal services 1542TS time series 1543TS time stamp 1544TS transport stream 1545TSAN Thread Sanitizer 1546TSC time stamp counter 1547TSD time stamp disable 1548TSDB time series database 1549TSL test, set, lock 1550TSO time sharing option 1551TSO Total Store Ordering 1552TSP Time-Stamp Protocol 1553TSP Tunnel Setup Protocol 1554TSP time synchronization protocol 1555TSP traveling salesman problem 1556TSS task state segment 1557TTL time to live 1558TTL transistor-transistor logic 1559TTM translation table maps 1560TTY teletype 1561TUI {terminal,text-based,textual} user interface 1562TX {transmit out,transmitter} 1563TXG transaction group 1564TZ time zone 1565UAC user {access,account} control 1566UAF use-after-free 1567UART universal asynchronous receiver/transmitter 1568UAT user acceptance testing 1569UB undefined behavior 1570UBSAN Undefined Behavior Sanitizer 1571UC uncacheable 1572UCS uniform-cost search 1573UCS unified computing system 1574UCS universal coded character set 1575UDMA ultra DMA 1576UDO ultra density optical 1577UDP User Datagram Protocol 1578UEFI unified extensible firmware interface 1579UFS Unix File System 1580UGA universal graphics adapter 1581UI unit interval 1582UI user interface 1583UICC universal integrated circuit card 1584UID unique identifier 1585UID user identifier 1586UL upload 1587UMA uniform memory access 1588UMA upper memory area 1589UMB upper memory block 1590UML unified modeling language 1591UMPC ultra-mobile PC 1592UPNP universal plug and play 1593UPS uninterruptible power supply 1594URI uniform resource identifier 1595URL uniform resource locator 1596URN uniform resource name 1597USART universal synchronous/asynchronous receiver/transmitter 1598USB universal serial bus 1599USWC uncacheable speculative write combining 1600UT unit test 1601UTC coordinated universal time 1602UTF unicode transformation formats 1603UTP unshielded twisted pair 1604UUCP Unix-to-Unix Copy Protocol 1605UUID universally unique identifier 1606UUOC useless use of cat 1607UUT unit under test 1608UX user experience 1609VA vertical alignment 1610VA virtual address 1611VA volt-ampere 1612VAX virtual address extension 1613VB Visual Basic 1614VCA variable-gain amplifier 1615VCC common collector voltage 1616VCCP virtual chassis control protocol 1617VCF voltage-controlled filter 1618VCM virtual channel memory 1619VCO voltage-controlled oscillator 1620VCP virtual chassis port 1621VCS version control system 1622VES virtual execution system 1623VESA Video Electronics Standards Association 1624VFO variable-frequency oscillator 1625VFS virtual file system 1626VG volume group 1627VGA Video Graphics Array 1628VHDCI very high density cable interconnect 1629VID {VLAN,voltage level} identifier 1630VIM Vi IMproved 1631VIPT virtually indexed, physically tagged 1632VIVT virtually indexed, virtually tagged 1633VLAN virtual local area network 1634VLIW very long instruction word 1635VLSI very large scale integration 1636VLSM variable length subnet mask 1637VM virtual {machine,memory} 1638VME virtual mode extension 1639VMX vector multimedia extensions 1640VMX virtual machine extensions 1641VOD video on demand 1642VPD vital product data 1643VPN virtual private network 1644VPWS virtual private wire service 1645VR virtual reality 1646VRAM video random access memory 1647VRF virtual routing and forwarding 1648VRM voltage regulator module 1649VROC Virtual RAID On CPU 1650VRRP Virtual Router Redundancy Protocol 1651VSTP VLAN Spanning Tree Protocol 1652VTP VLAN Trunking Protocol 1653VXFS Veritas file sytem 1654VXVM Veritas volume manager 1655W watt 1656W3C World Wide Web Consortium 1657WAFL write anywhere file layout 1658WAMP Web Application Messaging Protocol 1659WAN wide area network 1660WAP Wireless Application Protocol 1661WAP wireless access point 1662WDM Windows Driver Model 1663WDDM Windows Display Driver Model 1664WDT watchdog timer 1665WEP Wired Equivalent Privacy 1666WFI wait for interrupt 1667WFQ weighted fair queuing 1668WH write hit 1669WIFI wireless fidelity 1670WLAN wireless local area network 1671WM write miss 1672WMI Windows Management Instrumentation 1673WOL Wake-on-LAN 1674WOM Wake-on-Modem 1675WOR Wake-on-Ring 1676WORM write once read many 1677WP WordPerfect 1678WP word processor 1679WP write protect 1680WPA Wi-Fi Protected Access 1681WPA2 Wi-Fi Protected Access II 1682WPS Wi-Fi Protected Setup 1683WRAM window random access memory 1684WS web services 1685WTC write through caching 1686WWAN wireless wide area network 1687WWW world wide web 1688WYSIAYG what you see is all you get 1689WYSIWYG what you see is what you get 1690XBAR crossbar 1691XDMCP X Display Manager control protocol 1692XER XML encoding rules 1693XGA Extended Graphics Array 1694XHR XMLHttpRequest 1695XIP execute in place 1696XML Extensible Markup Language 1697XNA XNA's not acronymed 1698XNS Xerox network systems 1699XOR exclusive or 1700XP extreme programming 1701XSI X/Open System Interface 1702XSL extensible stylesheet language 1703XSLT extensible stylesheet language transformations 1704XSS cross site scripting 1705XT extended technology 1706XTI X/Open transport interface 1707XUL XML user interface language 1708YACC yet another compiler compiler 1709YAML YAML ain't markup language 1710YANG yet another next generation 1711YAWPFAPR you are welcome; please file a problem report 1712YP Yellow Pages 1713YTD year to date 1714ZAP ZFS attribute processor 1715ZBR zone bit recording 1716ZFOD zero-filled on demand 1717ZFS zettabyte file system 1718ZIF zero insertion force 1719ZIFS zero insertion force socket 1720ZIL ZFS intent log 1721ZMA zone multicast address 1722ZOI zero one infinity 1723ZOI zone of influence 1724ZPL ZFS Posix layer 1725ZVOL ZFS Volume 1726