acronyms.comp revision 1.253
1$NetBSD: acronyms.comp,v 1.253 2019/05/28 22:11:32 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 59AOL Alert-on-LAN 60AOS add or subtract 61AP access point 62AP application processor 63API application programming interface 64APEI ACPI platform error interface 65APIC advanced programmable interrupt controller 66APIPA automatic private IP addressing 67APM advanced power management 68APM application performance management 69APU accelerated processing unit 70APT advanced persistent threat 71AQM active queue management 72ARAT always running APIC timer 73ARC adaptive replacement cache 74ARC Advanced RISC Computing 75ARC automatic reference counting 76ARM Advanced RISC Machines 77ARP Address Resolution Protocol 78ARPA Advanced Research Projects Agency 79ARQ automatic repeat request 80ARR address range register 81ARU audio response unit 82AS autonomous system 83ASA Adaptive Security Appliance 84ASAN Address Sanitizer 85ASC advanced smart cache 86ASCII American Standard Code for Information Interchange 87ASD agile software development 88ASE advanced software environment 89ASF alert standard format 90ASIC application-specific integrated circuit 91ASK amplitude shift keying 92ASLR address space layout randomization 93ASN autonomous system number 94ASP active server pages 95ASP auxiliary storage pool 96ASPM active state power management 97ASQ automated software quality 98ASR address space register 99AST abstract syntax tree 100AST asynchronous system trap 101AT access time 102AT advanced technology 103ATA advanced technology attachment 104ATAPI advanced technology attachment packet interface 105ATC address translation cache 106ATM asynchronous transfer mode 107ATX advanced technology extended 108AV anti virus 109AVB audio video bridging 110AVL Adelson-Velsky-Landis 111AVX advanced vector extensions 112BA byte align 113BAL basic assembly language 114BAR base address register 115BBS bulletin board system 116BCC blind carbon copy 117BCD binary coded decimal 118BCH boot console handler 119BCR byte count register 120BCS base configuration space 121BD baud 122BDD binary decision diagram 123BDI bit deinterleave 124BDUF big design up front 125BEDO burst extended data output 126BER basic encoding rules 127BER bit error {rate,ratio} 128BERT boot error record table 129BFD binary {file,format} descriptor 130BFKL big fscking kernel lock 131BFS breadth-first search 132BFT binary file transfer 133BGA ball grid array 134BGP Border Gateway Protocol 135BGPSEC BGP Security 136BIND Berkeley Internet Name Daemon 137BIOS Basic Input/Output System 138BIOS built-in operating system 139BIST built-in self-test 140BIU bus interface unit 141BKDG BIOS and kernel developer's guide 142BLAS basic linear algebra subprograms 143BLC back light control 144BLOB binary large object 145BM bus master 146BMC baseboard management controller 147BMIC bus master interface controller 148BN boundary neutral 149BNF Backus-Naur form 150BO binary output 151BOF beginning of file 152BOM beginning of message 153BOM byte order mark 154BP base pointer 155BP boot processor 156BPB BIOS parameter block 157BPDU bridge protocol data unit 158BPF Berkeley Packet Filter 159BPI bits per inch 160BPM business process modelling 161BPS bits per second 162BPSK binary phase shift keying 163BQS Berkeley quality software 164BRE basic regular expression 165BS backspace 166BS binary sequence 167BSA basic service area 168BSD Berkeley Software Distribution 169BSDP Boot Service Discovery Protocol 170BSF bit scan forward 171BSOD blue screen of death 172BSP binary space partition 173BSP board support package 174BSP bootstrap processor 175BSR bit scan reverse 176BSS basic service set 177BSS block started by symbol 178BSSID basic service set identifier 179BT BitTorrent 180BT Bluetooth 181BT bit test 182BTC bit test [and] complement 183BTM bus transport mechanism 184BTR bit test [and] reset 185BTS bit test [and] set 186BTS bug tracking system 187BW bandwidth 188BWM block-write mode 189BUAG big ugly ASCII graphic 190CA certificate authority 191CAD computer-aided design 192CAM computer assisted manufacturing 193CAM conditional access module 194CAM content addressable memory 195CARP Common Address Redundancy Protocol 196CAS column address strobe 197CAS compare and swap 198CAS computer algebra system 199CASE computer aided software engineering 200CAU control access unit 201CAV constant angular velocity 202CBC cipher block chaining 203CBR constant bit rate 204CC carbon copy 205CCD charge coupled device 206CCI co-channel interferer 207CCNUMA cache-coherent non-uniform memory access 208CD cache disable 209CD compact disc 210CDDA compact disc digital audio 211CDL compiler description language 212CDMA code division multiple access 213CDP Cisco Discovery Protocol 214CDRAM cache dynamic random access memory 215CER canonical encoding rules 216CE customer edge 217CF compact flash 218CFB cipher feedback 219CFG context-free grammar 220CFG control-flow graph 221CFI control-flow integrity sanitizer 222CG control gate 223CGA Color Graphics Adapter 224CGI common gateway interface 225CGN Carrier-Grade NAT 226CHAP Challenge-Handshake Authentication Protocol 227CHS cylinder/head/sector 228CI continuous integration 229CI {common,component} interface 230CIDR Classless Inter-Domain Routing 231CIF common intermediate format 232CIFS Common Internet File System 233CIL common intermediate language 234CIR carrier-to-interference ratio 235CIS contact image sensor 236CISC complex instruction set {computer,computing} 237CJK Chinese, Japanese, [and] Korean 238CLF common log format 239CLI command line interface 240CLR common language runtime 241CLTT closed loop thermal throttling 242CLUT color look-up table 243CLV constant linear velocity 244CM configuration management 245CMA concert multithread architecture 246CMC chassis management controller 247CMC corrected machine check 248CMS {configuration,content,course} management system 249CMI control {management,method} interface 250CMOS complementary metal-oxide-semiconductor 251CMP chip multi-processing 252CMS content management system 253CMYK cyan magenta yellow black 254CN {common,canonical} name 255CNC computer numerical control 256CNR carrier-to-noise ratio 257COF current operating frequency 258COFDM coded orthogonal frequency division multiplexing 259COFF common object file format 260COM component object model 261COM computer on module 262COMA cache-only memory architecture 263CORBA common object request broker architecture 264COS class of service 265COW copy-on-write 266CP continuous pilot 267CPB core performance boost 268CPC central processor complex 269CPC cpu performance counters 270CPE common phase error 271CPE common platform enumeration 272CPER common platform error record 273CPG clock pulse generator 274CPI cycles per instruction 275CPL current privilege level 276CPLD complex programmable logic device 277CPP C preprocessor 278CPS characters per second 279CPT command pass through 280CPU central processing unit 281CR carriage return 282CRC cyclic redundancy check 283CRL carrier recovery loop 284CRLF carriage return line feed 285CRT cathode ray tube 286CRUD create, read, update, and delete 287CS cable select 288CS chip select 289CS code segment 290CS computer science 291CSDL {common,conceptual} schema definition language 292CSI channel state information 293CSI common system interface 294CSMA carrier sense multiple access 295CSMA/CA carrier sense multiple access with collision avoidance 296CSMA/CD carrier sense multiple access with collision detection 297CSR control [and] status registers 298CSRG Computer Systems Research Group 299CSS cascading style sheets 300CSV comma-separated values 301CTF compact c type format 302CTM close to metal 303CTR counter [mode] 304CTS clear to send 305CUA common user access 306CUT coordinated universal time 307CV control voltage 308CVE common vulnerabilities and exposures 309CVS Concurrent Versions System 310DA destination address 311DAA distributed application architecture 312DAB digital audio broadcasting 313DAC digital [to] analog converter 314DAC discretionary access control 315DAD duplicate address detection 316DANE DNS-based Authentication of Named Entities 317DAO disk at once 318DAP Directory Access Protocol 319DAT digital audio tape 320DAT dynamic acceleration technology 321DB database 322DBA database administrator 323DBA dynamic bandwidth allocation 324DBB data bus buffer 325DBC design by contract 326DBL dynamic buffer limiting 327DBMS database management system 328DBS database server 329DC direct current 330DCC Direct Client-to-Client 331DCC direct cable connect 332DCD data carrier detect 333DCE data control equipment 334DCE distributed computing environment 335DCIM data center infrastructure management 336DCIM digital camera images 337DCL Digital Command Language 338DCOM distributed component object model 339DCOP Desktop COmmunication Protocol 340DCS data collection systems 341DCT discrete cosine transform 342DCU data cache unit 343DDC display data channel 344DDE dynamic data exchange 345DDK device driver kit 346DDL data description language 347DDR double data rate 348DDS direct digital sound 349DDWG Digital Display Working Group 350DE debugging extensions 351DE desktop environment 352DEA data encryption algorithm 353DEC Digital Equipment Corporation 354DEK data encryption key 355DEP data execution prevention 356DER distinguished encoding rules 357DES Data Encryption Standard 358DF don't fragment 359DFA deterministic finite automaton 360DFC data flow control 361DFS depth first search 362DFS distributed file system 363DFSAN Data Flow Sanitizer 364DFT diagnostic function test 365DFT discrete Fourier transform 366DGL data generation language 367DH Diffie-Hellman 368DHCP Dynamic Host Configuration Protocol 369DIFS distributed inter-frame space 370DIMM dual inline memory module 371DIRT design in real time 372DL diode logic 373DL discrete logarithm 374DL download 375DLCI data link connection identifier 376DLE data link escape 377DLL dynamic link library 378DLP discrete logarithm problem 379DMA direct memory access 380DMI desktop management interface 381DMS document management system 382DMT discrete multitone modulation 383DMU data management layer 384DNARD Digital network appliance reference design 385DND drag and drop 386DNLC directory name lookup cache 387DNS Domain Name System 388DNSSEC DNS Security Extensions 389DOE distributed object environment 390DOF data over fibre 391DOM document object model 392DOS denial of service 393DOS disk operating system 394DP DisplayPort 395DPC deferred procedure call 396DPCM differential pulse code modulation 397DPD dead peer detection 398DPI deep packet inspection 399DPI dots per inch 400DPL descriptor privilege level 401DPS Display PostScript 402DPST display power savings technology 403DRAAS disaster recovery as a service 404DRAM dynamic random access memory 405DRBG deterministic random bit generator 406DRI direct rendering infrastructure 407DRM digital rights management 408DRRS display refresh rate switching 409DS debug store 410DSA digital signature algorithm 411DSAP destination service access point 412DSB double-sideband modulation 413DSDT differentiated system descriptor table 414DSF device special file 415DSL dataset and snapshot layer 416DSL digital subscriber line 417DSL domain specific language 418DSLAM digital subscriber line access multiplexer 419DSN delivery status notification 420DSO dynamic shared object 421DSP digital signal processor 422DSSS direct sequence spread spectrum 423DTD document type definition 424DTE data terminal equipment 425DTE dumb terminal emulator 426DTL diode-transistor logic 427DTLS datagram transport layer security 428DTS digital thermal sensor 429DUT device under test 430DVB digital video broadcasting 431DVCS distributed version control system 432DVD digital versatile disc 433DVFS dynamic voltage and frequency scaling 434DVI device independent 435DVI Digital Visual Interface 436DVR digital video recorder 437E-XER extended XML encoding rules 438EABI embedded-application binary interface 439EAI Email Address Internationalization 440EAI Enterprise Application Integration 441EAP Extensible Authentication Protocol 442EAPOL EAP over Lan 443EBCDIC Extended Binary Coded Decimal Interchange Code 444EBDA Extended BIOS Data Area 445EBNF extended backus-naur form 446EBR extended boot record 447EC elliptic curve 448ECC elliptic curve cryptography 449ECC error correction code 450ECDH elliptic curve Diffie-Hellman 451ECDL elliptic curve discrete logarithm 452ECDLP elliptic curve discrete logarithm problem 453ECDSA elliptic curve digital signature algorithm 454ECL emitter-coupled logic 455ECN explicit congestion notification 456ECP enhanced capability port 457ECS enhanced chip set 458ECS extended configuration space 459EDAC error detection and correction 460EDAT enhanced dynamic acceleration technology 461EdDSA Edwards curve digital signature algorithm 462EDGE explicit data graph execution 463EDID extended display identification data 464EDO extended data out 465EDS electronical data sheet 466EEE energy efficient ethernet 467EEPROM electrically erasable programmable read only memory 468EFI extensible firmware interface 469EFL emitter follower logic 470EFM eight to fourteen modulation 471EFS extent file system 472EGA Enhanced Graphics Adapter 473EGP exterior gateway protocol 474EH extension header 475EIDE enhanced IDE 476EISA extended industry standard architecture 477EINJ error injection table 478ELF executable and linking format 479ELS entry level system 480EMI electro-magnetic interference 481EMP electro-magnetic pulse 482EMR electro-magnetic radiation 483EMACS Editor MACroS 484EOF end of file 485EOI end of interrupt 486EOIS end of interactive support 487EOL end of life 488EOL end of line 489EOT end of transmission 490EPIC explicitly parallel instruction computing 491EPP enhanced parallel port 492EPRML extended partial response, maximum likelihood 493EPROM erasable programmable read only memory 494ERD emergency recovery disk 495ERD entity relationship diagram 496ERE extended regular expression 497ERST error record serialization table 498ESAN Efficiency Sanitizer 499ESB enterprise service bus 500ESDI enhanced small disk interface 501ESDRAM enhanced synchronous dynamic random access memory 502ESI enclosure services interface 503ESS electronic switching system 504ESS extended service set 505ESSID extended service set identifier 506EST enhanced speedstep 507ETL extract, transform, load 508EU execution unit 509EULA end user license agreement 510FAT file allocation table 511FBRAM frame buffer random access memory 512FCIF full common intermediate format 513FCL fiber channel loop 514FCS frame check sequence 515FDC floppy disk controller 516FDD floppy disk drive 517FDDI fiber distributed data interface 518FDE full disk encryption 519FDT flattened device tree 520FEA finite element analysis 521FEC forward error correction 522FET field-effect transistor 523FF finite field 524FF form feed 525FFDH finite-field Diffie-Hellman 526FFH functional fixed hardware 527FFI foreign function interface 528FFM focus follows mouse 529FFS Fast File System 530FFS find first set 531FFT fast Fourier transform 532FG floating gate 533FHSS frequency hop spread spectrum 534FID frequency identifier 535FIFO first in, first out 536FILO first in, last out 537FIPS Federal Information Processing Standards 538FIR fast infrared 539FLOPS floating [point] operations per second 540FLOSS free/libre/open source software 541FM frequency modulation 542FMR false match rate 543FOSS free/open source software 544FPGA field programmable gate array 545FPM fast page mode 546FPR floating point register 547FPU floating point unit 548FQDN fully qualified domain name 549FRR false rejection rate 550FRU field replaceable unit 551FS file system 552FSB front side bus 553FSCK file system check 554FSF Free Software Foundation 555FSK frequency shift keying 556FSM finite-state machine 557FTA fault tree analysis 558FTL flash translation layer 559FTP File Transfer Protocol 560FTPS File Transfer Protocol Secure 561FUS fast user switching 562FWH firmware hub 563FWS folding white space 564GAL generic array logic 565GAS generic address structure 566GC garbage collector 567GCM Galois counter mode 568GCR group-coded recording 569GDI Graphics Device Interface 570GDT global descriptor table 571GEM graphics environment manager 572GEM graphics execution manager 573GENA general event notification architecture 574GHC Glasgow Haskell compiler 575GHES generic hardware error source 576GIC generic interrupt controller 577GID group identifier 578GIF graphics interchange format 579GMCH graphics and memory controller hub 580GNU GNU's Not Unix 581GOP graphics output protocol 582GOT global offset table 583GPE general purpose event 584GPF general protection fault 585GPG GNU Privacy Guard 586GPL [GNU] General Public License 587GPR general purpose register 588GPS generalized processor sharing 589GPT GUID partition table 590GPU graphics processing unit 591GR golden ratio 592GRE generic routing encapsulation 593GSI global system interrupt 594GUI graphical user interface 595GUID globally unique identifier 596GVFS git virtual file system 597HA high availability 598HAL hardware abstraction layer 599HAT hashed array tree 600HATEOAS hypermedia as the engine of application state 601HBA host bus adapter 602HCF halt and catch fire 603HCI host controller interface 604HCI human-computer interaction 605HCL hardware compatibility list 606HDCP High-bandwidth Digital Content Protection 607HDD hard disk drive 608HDL hardware description language 609HDMI High-Definition Multimedia Interface 610HDTV high-definition television 611HECI host embedded controller interface 612HEST hardware error source table 613HF high frequency 614HFM highest frequency mode 615HFS hierarchical file system 616HID human interface device 617HKP HTTP Keyserver Protocol 618HLL high-level language 619HMA high memory area 620HMI human-machine interface 621HOOD hierarchical object oriented design 622HP Hewlett-Packard 623HPC high performance computing 624HPET high precision event timer 625HSM hardware security module 626HSM hierarchical storage management 627HT hyper-threading 628HTC hardware thermal control 629HTCC high temperature co-fired ceramic 630HTML HyperText Markup Language 631HTT hyper-threading technology 632HTTP Hypertext Transfer Protocol 633HTTPS Hypertext Transfer Protocol Secure 634HVM hardware virtual machine 635HVDS High-Voltage Differential Signaling 636HWASAN Hardware-assisted Address Sanitizer 637HZ Hertz 638I2O intelligent input/output 639IA information assurance 640IAAS infrastructure as a service 641IANA Internet Assigned Numbers Authority 642IBC iterated block cipher 643IBM International Business Machines 644IBS instruction based sampling 645IBSS independent basic service set 646IC integrated circuit 647ICA independent computer architecture 648ICB Internet Citizen's Band 649ICE in-circuit emulator 650ICE internal compiler error 651ICH I/O controller hub 652ICMP Internet Control Message Protocol 653ICT information and communications technology 654ICW initialization command word 655IDA Intel dynamic acceleration 656IDCMP Intuition direct communication message port 657IDE integrated development environment 658IDE integrated drive electronics 659IDPS intrusion detection [and] prevention system 660IDRP inter-domain routing protocol 661IDS intrusion detection system 662IDT interrupt descriptor table 663IE Internet Explorer 664IEC International Electrotechnical Commission 665IEEE Institute of Electrical and Electronics Engineers 666IESG Internet Engineering Steering Group 667IETF Internet Engineering Task Force 668IF intermediate frequency 669IFCM isochronous flow control mode 670IFF Interchange File Format 671IFS internal field separator 672IGD Internet gateway device 673IGMP Internet Group Management Protocol 674IGP interior gateway protocol 675IHV independent hardware vendor 676IKE Internet key exchange 677ILM internal loopback mode 678ILOM integrated lights-out management 679ILP instruction level parallelism 680IM instant messaging 681IMAP Internet Message Access Protocol 682IMC integrated memory controller 683IMCR interrupt mode configuration register 684IMR interrupt mask register 685IMS information management system 686IMSI international mobile subscriber identity 687INCITS InterNational Committee for Information Technology Standards 688IO input/output 689IOCTL input/output control 690IOM input/output managers 691IOMMU input/output memory management unit 692IOT Internet of Things 693IP Internet Protocol 694IP intellectual property 695IPC instructions per cycle 696IPC interprocess communication 697IPCF interprocess communication facility 698IPE integrated programming environment 699IPI intelligent peripheral interface 700IPI interprocessor interrupt 701IPL Initial Program Load 702IPL Interrupt Priority Level 703IPMB Intelligent Platform Management Bus 704IPMI Intelligent Platform Management Interface 705IPNG Internet Protocol, Next Generation 706IPS in-plane switching 707IPS intrusion prevention system 708IPSEC Internet Protocol Security 709IRC Internet Relay Chat 710IRDA infrared data association 711IRQ interrupt request 712IRQL interrupt request level 713IRR interrupt request register 714IRTF Internet Research Task Force 715IS information system 716ISA industry standard architecture 717ISA instruction set architecture 718ISDN integrated services digital network 719ISI inter-symbol interference 720ISL initial system load 721ISM industrial, scientific, [and] medical 722ISN initial serial number 723ISO International Standards Organization 724ISOC Internet Society 725ISP Internet service provider 726ISR in-service register 727ISR interrupt service routine 728IST interrupt stack table 729ISV independent software vendor 730IT information technology 731ITB Intel Turbo Boost 732ITIL information technology infrastructure library 733ITP in-target probe 734ITSM IT service management 735IV initialization vector 736IVT interrupt vector table 737JBOD just a bunch of disks 738JCL Job Control Language 739JFET junction [gate] field-effect transistor 740JIT just in time 741JPEG Joint Photographic Experts Group 742JRE Java Runtime Environment 743JSON JavaScript Object Notation 744JTAG joint test action group 745KASLR kernel address space layout randomization 746KB keyboard 747KB kilobyte 748KBD keyboard 749KBD kilobaud 750KCS keyboard controller style 751KLOC thousand lines of code 752KMS kernel-mode setting 753KPI kernel programming interface 754KVA kernel virtual address 755KVM kernel virtual machine 756KVM kernel virtual memory 757KVM keyboard, video, [and] mouse 758L2CAP link layer control and adaptation protocol 759LAMP Linux Apache MySQL {Perl,PHP,Python} 760LAN local area network 761LAPIC local advanced programmable interrupt controller 762LAR load access rights 763LBA logical block addressing 764LBNF labeled backus-naur form 765LBS location-based service 766LCD liquid crystal display 767LCP link control protocol 768LDA local delivery agent 769LDAP Lightweight Directory Access Protocol 770LDR light-dependent resistor 771LDT local descriptor table 772LE logical extent 773LED light emitting diode 774LELL low energy link layer 775LER label edge router 776LF line feed 777LF low frequency 778LFM lowest frequency mode 779LFN long file names 780LFO low-frequency oscillation 781LFS log-structured file system 782LFU least frequently used 783LHP loop heat pipe 784LIF logical interchange format 785LIFO last in, first out 786LILO LInux LOader 787LILO last in, last out 788LINT local interrupt 789LIR local Internet registry 790LISP LISt Processor 791LISP Locator/ID Separation Protocol 792LKM {Linux,loadable} kernel module 793LKML Linux kernel mailing list 794LL load linked 795LL/SC load linked/store conditional 796LLC logical link control 797LLD low-level design 798LLDD low-level design document 799LLDP link layer discovery protocol 800LLF low level format 801LLMNR link-local multicast name resolution 802LLVM Low Level Virtual Machine 803LM long mode 804LMI local management interface 805LMM link management mode 806LMP link management protocol 807LNO loop nest optimization 808LOC lines of code 809LOM lights-out management 810LPE Linux performance events 811LPC low pin count 812LPS local positioning system 813LRC longitudinal redundancy check 814LRM left-to-right mark 815LRO left-to-right override 816LRU least recently used 817LSAN Leak Sanitizer 818LSB Linux standards base 819LSB least significant {bit,byte} 820LSI large scale integration 821LSL load segment limit 822LSM log structured merge 823LSN Large Scale NAT 824LSN log sequence number 825LSR label switch router 826LTCC low temperature co-fired ceramic 827LTO linear tape-open 828LTO link time optimization 829LTR left to right 830LTR load task register 831LTR letter(-sized paper) 832LTS long term support 833LUA Lua Uppercase Accident 834LUN logical unit number 835LV logical volume 836LVM logical volume management 837LVT local vector table 838LVDS Low-Voltage Differential Signaling 839LWP light-weight process 840LZSS Lempel Ziv Storer Szymanski 841LZW Lempel Ziv Welch 842MAC mandatory access control 843MAC {media,medium} access control 844MAC message authentication {check,code} 845MADT multiple APIC descriptor table 846MB megabyte 847MBA multi-boot agent 848MBR master boot record 849MBS megabits per second 850MC memory controller 851MCA machine check architecture 852MCA MicroChannel architecture 853MCC multiversion concurrency control 854MCE machine check exception 855MCGA Multi-Color Graphics Array 856MCH memory controller hub 857MCM multi-chip module 858MCQ memory controlled queue 859MD machine-dependent 860MD-SAL model-driven service abstraction layer 861MDA mail delivery agent 862MDA Monochrome Display Adapter 863MDC Management Data Clock 864MDI Medium Dependent Interface 865MDI-X Medium Dependent Interface Crossover 866MDIO Management Data Input/Output 867MDMX MIPS Digital Media eXtension 868MDRAM multibank dynamic random access memory 869MESI modified, exclusive, shared, invalid 870MFC merge from current 871MFC Microsoft Foundation Classes 872MFM modified frequency modulation 873MFU most frequently used 874MGCP media gateway control protocol 875MI machine-independent 876MI machine interface 877MIB management information base 878MIC message integrity {check,code} 879MID mobile Internet device 880MIDI musical instrument digital interface 881MIF management information format 882MII media independent interface 883MIM man in the middle 884MIMD multiple instruction, multiple data 885MIME Multipurpose Internet Mail Extensions 886MIMO multiple input multiple output 887MIPS million instructions per second 888MIPS Microprocessor without Interlocked Pipeline Stages 889MISD multiple instruction, single data 890MIT Massachusetts Institute of Technology 891MITM man in the middle 892ML machine language 893ML machine learning 894ML mailing list 895ML markup language 896ML maximum likelihood 897MLC multi-level cell 898MLD multicast listener discovery 899MLHP micro loop heat pipe 900MMF multi-mode fiber 901MMIC monolithic microwave integrated circuit 902MMIO memory mapped input/output 903MMORPG massive multiplayer online role playing game 904MMU memory management unit 905MMX matrix math extension 906MMX multimedia extension 907MMX multiple math extension 908MO magneto-optical 909MOESI modified, owned, exclusive, shared, invalid 910MOF maximum operating frequency 911MOSFET metal-oxide-semiconductor field-effect transistor 912MOSI modified, owned, shared, invalid 913MP multi-platform 914MP multiplayer 915MP {multiprocessing,multiprocessor} 916MPEG moving picture experts group 917MPI message passing interface 918MPLS Multiprotocol Label Switching 919MPP massively parallel processor 920MPS memory pool system 921MPS multiprocessor specification 922MQTT Message Queuing Telemetry Transport 923MR modem ready 924MRU most recently used 925MS Microsoft 926MSAN Memory Sanitizer 927MSB most significant {bit,byte} 928MSC message sequence chart 929MSE mean square error 930MSF minutes seconds frames 931MSI message signaled interrupt 932MSI modified, shared, invalid 933MSR {machine state,model-specific} register 934MSS maximum segment size 935MSTP Multiple Spanning Tree Protocol 936MT machine translation 937MTA mail transfer agent 938MTBF mean time between failures 939MTP media transfer protocol 940MTRR memory type range register 941MTTF mean time to failure 942MTU maximum transmission unit 943MUA mail user agent 944MUD multi-user domain 945MVCC multiversion concurrency control 946MWE module width encoding 947MX mail exchange 948NACK negative acknowledgement 949NAK negative acknowledgement 950NAN not a number 951NAPT Network Address Port Translation 952NAS network attached storage 953NAT network address translation 954NAV network allocation vector 955NC numerical control 956NC-SI network controller sideband interface 957NCO numerically-controlled oscillator 958NCP Network Control Protocol 959NCSI network connectivity status indicator 960NCQ native command queuing 961ND neighbor discovery 962NDFA nondeterministic finite automaton 963NE numeric error 964NEWS Network extensible Window System 965NFA nondeterministic finite automaton 966NFC near-field communication 967NFCI no functional change intended 968NFS network file system 969NFV network function virtualization 970NIA next instruction address 971NIC network information center 972NIC network interface card 973NIDS network intrusion detection system 974NIP network interface protocol 975NIPS network intrusion prevention system 976NIS network information service 977NIST National Institute of Standards and Technology 978NLS native language support 979NMI non-maskable interrupt 980NNTP Network News Transfer Protocol 981NOC network operations center 982NOP no operation 983NOS network operating system 984NP nondeterministic polynomial time 985NRND not recommended for new designs 986NRZ non-return to zero 987NSA nation-state adversary 988NSA no such agency 989NSA National Security Agency 990NTM non-deterministic Turing machine 991NTP Network Time Protocol 992NUMA non-uniform memory access 993NVMM NetBSD Virtual Machine Monitor 994NVMM non-volatile main memory 995NVRAM non-volatile random access memory 996NW not write-through 997NX no execute 998OAEP optimal asymmetric encryption padding 999OAM operations, administration, and {management,maintenance} 1000OBO off by one 1001OBOE off by one error 1002OCL object constraint language 1003OCR optical character recognition 1004ODE offline device environment 1005ODM object data manager 1006ODCM on-demand clock modulation 1007ODT on-die termination 1008OEM original equipment manufacturer 1009OFB output feedback 1010OFDM orthogonal frequency division multiplexing 1011OFET organic field-effect transistor 1012OLAP online analytical processing 1013OLE object linking and embedding 1014OLTP online transaction processing 1015ONFI open nand flash interface 1016OO OpenOffice 1017OO object oriented 1018OOB out of band 1019OOE out of order execution 1020OOM out of memory 1021OOO OpenOffice.org 1022OOP object oriented programming 1023OOPS object oriented programming systems 1024OOSE object oriented software engineering 1025OPM operations per minute 1026OPS operations per second 1027OQL Object Query Language 1028ORB object request broker 1029ORM object-relational mapping 1030OS operating system 1031OSD open source definition 1032OSF open software foundation 1033OSI Open Source Initiative 1034OSI open systems interconnection 1035OSPF open shortest path first 1036OSPM OS power management 1037OSS open sound system 1038OSS open source software 1039OSVW operating system visible workarounds 1040OTP one time password 1041OTP open telecom platform 1042OU organizational unit 1043OUI organizationally unique identifier 1044OWL Web Ontology Language 1045P2P PCI to PCI 1046P2P peer to peer 1047PA phase accumulator 1048PA physical address 1049PAAS platform as a service 1050PAC phase-amplitude converter 1051PAE physical address extension 1052PAL phase alternating line 1053PAL programmable array logic 1054PAM pluggable authentication modules 1055PAM pulse amplitude modulation 1056PAP password authentication protocol 1057PAT page attribute table 1058PAT port address translation 1059PATA parallel ATA 1060PAX portable archive exchange 1061PBE pending break encoding 1062PBE programming by example 1063PC personal computer 1064PC program counter 1065PCB printed circuit board 1066PCB process control block 1067PCB Protocol Control Block 1068PCC Portable C Compiler 1069PCD page-level cache disable 1070PCE path computation element 1071PCE performance-monitor counter enable 1072PCEP Path Computation Element Protocol 1073PCH platform controller hub 1074PCI peripheral component interconnect 1075PCM phase change memory 1076PCM pulse code modulation 1077PCMCIA Personal Computer Memory Card International Association 1078PCP Port Control Protocol 1079PD public domain 1080PDA personal digital assistant 1081PDA pushdown automaton 1082PDAG propositional directed acyclic graph 1083PDB power distribution board 1084PDF portable document format 1085PDM pulse-duration modulation 1086PDN pull-down network 1087PDP page {descriptor,directory} page 1088PDS product data sheet 1089PDU protocol data unit 1090PE protection enable 1091PE provider edge 1092PEAP Protected EAP 1093PECI platform environment control interface 1094PEP protocol extension protocol 1095PER packed encoding rules 1096PFS perfect forward secrecy 1097PGAS partitioned global address space 1098PGE page global enable 1099PGP Pretty Good Privacy 1100PHB PCI host bridge 1101PHP PHP: Hypertext Preprocessor 1102PIC performance instrumentation counters 1103PIC position independent code 1104PIC programmable interrupt controller 1105PICNIC problem in chair, not in computer 1106PID process id 1107PIE position independent executable 1108PIL Priority Interrupt Level 1109PIM personal information manager 1110PIM platform-independent model 1111PIO programmed input/output 1112PIPT physically indexed, physically tagged 1113PIQ prefetch input queue 1114PIT programmable interrupt timer 1115PIV personal identity verification 1116PIX Private Internet eXchange 1117PKCS public-key cryptography standards 1118PKI public key infrastructure 1119PLC programmable logic controller 1120PLD programmable logic device 1121PLL phase locked loop 1122PLRU pseudo LRU 1123PLTM package level thermal management 1124PM power management 1125PM {phase,pulse} modulation 1126PMC performance monitoring counters 1127PME power management event 1128PMEG page map entry group 1129PMI performance monitoring infrastructure 1130PMI platform management interrupt 1131PMIC power management integrated circut 1132PMIO port-mapped input/output 1133PMT photo-multiplier tube 1134PMU performance monitoring units 1135PMU power management unit 1136PNG portable network graphics 1137PNP plug and play 1138POE power over ethernet 1139POF probability of failure 1140POP Post Office Protocol 1141POP power on password 1142POSIX Portable Operating System Interface [for Unix] 1143POST power on self test 1144POTS plain old telephone system 1145POWER Performance Optimization With Enhanced RISC 1146POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1147PP pair programming 1148PPB PCI [to] PCI bridge 1149PPC PowerPC 1150PPC Power Performance Computing 1151PPI pixels per inch 1152PPM pages per minute 1153PPP Point-to-Point Protocol 1154PPPOA Point-to-Point Protocol over ATM 1155PPPOE Point-to-Point Protocol over Ethernet 1156PPU physics processing unit 1157PRAM Parameter RAM 1158PRBS pseudorandom bit sequence 1159PRG pseudorandom generator 1160PRF pseudorandom function [family] 1161PRML partial response, maximum likelihood 1162PRN pseudorandom {noise,number} 1163PRNG pseudorandom number generator 1164PROM programmable read only memory 1165PRP pseudorandom permutation 1166PRU Programmable Realtime Unit 1167PS PostScript 1168PSD power spectral density 1169PSE page size extensions 1170PSK phase shift keying 1171PSK pre-shared key 1172PSTN public switched telephone network 1173PSW program status word 1174PTE page table entry 1175PTLA pseudo top level aggregator 1176PTP page table page 1177PTV perceived target value 1178PU processing unit 1179PUC personal unblocking code 1180PUN physical unit number 1181PV physical volume 1182PVC permanent virtual circuit 1183PVG physical volume group 1184PVI protected-mode virtual interrupt 1185PVST Per-VLAN Spanning Tree 1186PWM pulse width modulation 1187PXE preboot execution environment 1188QA quality assurance 1189QAM quadrature amplitude modulation 1190QAM quality assurance management 1191QBE query by example 1192QC quality control 1193QDI quasi delay insensitive 1194QCIF quarter common intermediate format 1195QOS quality of service 1196QVL qualified vendor list 1197R/O read only 1198R/W read/write 1199RA receiver address 1200RA remote assistance 1201RA resource affinity 1202RA router advertisement 1203RAD rapid application development 1204RAID redundant array of {independent,inexpensive} disks 1205RAM random access memory 1206RAS reliability, availability and serviceability 1207RAS remote access service 1208RAS restartable atomic sequence 1209RAS row address strobe 1210RBF radial basis function 1211RBNF routing backus-naur form 1212RBT red-black tree 1213RC release candidate 1214RC remote control 1215RC run commands 1216RCS Revision Control System 1217RCS revision control system 1218RCU read, copy, update 1219RDB Rigid Disk Block 1220RDBMS relational database management system 1221RDF Resource Description Framework 1222RDM relational data model 1223RDMA remote direct memory access 1224RDRAM Rambus DRAM 1225RE regular expression 1226REST representational state transfer 1227RF radio frequency 1228RFI radio frequency interference 1229RFO request for ownership 1230RFU reserved for future use 1231RGB red green blue 1232RGBA red green blue alpha 1233RGMII reduced gigabit media independent interface 1234RH read hit 1235RHEL Red Hat Enterprise Linux 1236RHL Red Hat Linux 1237RIB routing information base 1238RIFF Resource Interchange File Format 1239RIP Raster Image Processor 1240RIP Routing Information Protocol 1241RIR regional Internet registry 1242RISC reduced instruction set {computer,computing} 1243RKM ROM Kernel Manual 1244RLE run length encoding 1245RLL run length limited 1246RLO right-to-left override 1247RM read miss 1248RMCP Remote Management Control Protocol 1249RMI remote method invocation 1250RMO Relaxed Memory Ordering 1251RMPM rapid memory power management 1252RMS root mean square 1253RMW read, modify, write 1254RNG random number generator 1255ROM read only memory 1256RPC remote procedure call 1257RPKI resource PKI 1258RPL requested privilege level 1259RPM revolutions per minute 1260RPN reverse Polish notation 1261RPVST Rapid Per-VLAN Spanning Tree 1262RR random replacement 1263RR round robin 1264RS relay station 1265RSA Rivest, Shamir, [and] Adleman 1266RSIP Realm Specific IP 1267RSN Robust Secure Network 1268RSS really simple syndication 1269RSS residual sum of squares 1270RSTP Rapid Spanning Tree Protocol 1271RT real time 1272RTC real time clock 1273RTC real time computing 1274RTF rich text format 1275RTL register transfer language 1276RTL resistor-transistor logic 1277RTL right to left 1278RTOS real time operating system 1279RTS request to send 1280RTT round trip time 1281RUP rational unified process 1282RW Rabin-Williams 1283RWM read-write memory 1284RX {receive,receiver} 1285S/PDIF Sony/Philips Digital Interface Format 1286SA security advisory 1287SA security association 1288SA source address 1289SA structured analysis 1290SAAS software as a service 1291SACD super audio compact disc 1292SAD security association database 1293SAL {service,system} abstraction layer 1294SAM serial access memory 1295SAM sum addressed memory 1296SAML security assertion markup language 1297SAN storage area network 1298SAP service access point 1299SAPIC streamlined advanced programmable interrupt controller 1300SASD structured analysis, structured design 1301SASI Shugart Associates System Interface 1302SASL simple authentication [and] security layer 1303SATA serial advanced technology attachment 1304SAX simple API for XML 1305SB sound blaster 1306SBU standard build unit 1307SC store conditional 1308SCA source code analyzer 1309SCADA supervisory control and data acquisition 1310SCC single chip cloud 1311SCC source code control 1312SCCS Source Code Control System 1313SCI scalable coherent interface 1314SCI system control interrupt 1315SCM software configuration management 1316SCM source code management 1317SCM storage-class memory 1318SCO synchronous connection orientated 1319SCP secure copy 1320SCSI Small Computer System Interface 1321SCTP Stream Control Transmission Protocol 1322SDEI software delegated exception interface 1323SDI symbol deinterleave 1324SDK software development kit 1325SDL Simple Declarative Language 1326SDL Simple Direct-media Layer 1327SDLC {software,system,systems} development life cycle 1328SDN software defined networking 1329SDP Session Description Protocol 1330SDRAM synchronous dynamic random access memory 1331SDS software defined storage 1332SDT syntax-directed translation 1333SEA synchronous external abort 1334SEGV segmentation violation 1335SEO search engine optimization 1336SES SCSI enclosure services 1337SFC sequential function chart 1338SFI simple firmware interface 1339SFI software fault isolation 1340SFTP SSH File Transfer Protocol 1341SFTP Serial File Transfer Protocol 1342SFTP Simple File Transfer Protocol 1343SGMII serial gigabit media independent interface 1344SGRAM synchronous graphics random access memory 1345SHA secure hash algorithm 1346SIDH supersingular isogeny Diffie-Hellman 1347SIEM security information and event management 1348SIF source input format 1349SIFS short inter-frame space 1350SIM subscriber identity module 1351SIMD single instruction, multiple data 1352SIMM single inline memory module 1353SIP Session Initiation Protocol 1354SIR signal-to-interference ratio 1355SIR slow infrared 1356SISD single instruction, single data 1357SLAAC stateless address auto-configuration 1358SLC single-level cell 1359SLDRAM synchronous-link dynamic random access memory 1360SLED single large expensive disk 1361SLI scalable link interface 1362SLI scan-line interleave 1363SLIC system license internal code 1364SLOC source lines of code 1365SLRU segmented LRU 1366SMA smart memory access 1367SMAF system management action field 1368SMAP Simple Mail Access Protocol 1369SMAP supervisor mode access prevention 1370SMART self-monitoring analysis and reporting technology 1371SMB Server Message Block 1372SMB system management bus 1373SMBIOS System Management BIOS 1374SMC system management controller 1375SMD storage module device 1376SMEP supervisor mode execution protection 1377SMF single mode fiber 1378SMI structure of management information 1379SMI system management interrupt 1380SMM system management mode 1381SMP symmetric multiprocessing 1382SMT simultaneous multithreading 1383SMTP Simple Mail Transfer Protocol 1384SMU system management unit 1385SNA systems network architecture 1386SNAP Sub-Network Access Protocol 1387SNIA Storage Networking Industry Association 1388SNMP Simple Network Management Protocol 1389SNR signal-to-noise ratio 1390SOA service oriented architecture 1391SOAP Simple Object Access Protocol 1392SOC system on chip 1393SOF start of frame 1394SOH start of header 1395SOHO small office/home office 1396SOL serial over LAN 1397SOM system on module 1398SP service pack 1399SP stack pointer 1400SPA storage pool allocator 1401SPARC scalable processor architecture 1402SPARQL SPARQL Protocol and RDF Query Language 1403SPD security policy database 1404SPD serial presence detect 1405SPDIF Sony/Philips digital interface format 1406SPI serial peripheral interface 1407SPI stateful packet inspection 1408SPL system interrupt priority level 1409SPL spinlock 1410SPMD single process, multiple data 1411SPR special purpose register 1412SPT sectors per track 1413SQA software quality assurance 1414SQCIF sub quarter common intermediate format 1415SQL Structured Query Language 1416SRAM static random access memory 1417SRC sample rate conversion 1418SRP SCSI RDMA protocol 1419SS self-snoop 1420SS stack segment 1421SSA static single assignment 1422SSAP source service access point 1423SSB single-sideband modulation 1424SSD solid state drive 1425SSE streaming SIMD extensions 1426SSFDC solid state floppy disc card 1427SSH secure shell 1428SSI server side includes 1429SSID service set identifier 1430SSL secure sockets layer 1431SSP stack smashing protection 1432STC software thermal control 1433STD state transition diagram 1434STOMP Streaming Text Oriented Messaging Protocol 1435STP Spanning Tree Protocol 1436STP shielded twisted pair 1437SUN Stanford University Network 1438SUS Single Unix Specification 1439SUT system under test 1440SVC switched virtual circuit 1441SVG scalable vector graphics 1442SVGA Super Video Graphics Array 1443SVI {switch,switched} virtual interface 1444SVM secure virtual machine 1445SVM support vector machine 1446SVR System V Release 1447SVS Separate Virtual Space 1448SWF Shockwave Flash 1449SWIG simplified wrapper [and] interface generator 1450SYR symbol timing recovery 1451TA test assertion 1452TA transmitter address 1453TAI international atomic time 1454TAO track at once 1455TAOCP The Art of Computer Programming 1456TAP Test Anything Protocol 1457TAS test and set 1458TB terabyte 1459TBNF transitional backus-naur form 1460TCB trace capture buffer 1461TCB trusted computing base 1462TCC thermal control circuit 1463TCL tool command language 1464TCP Transmission Control Protocol 1465TCQ tagged command queueing 1466TDC time [to] digital converter 1467TDD test-driven development 1468TDD time division duplex 1469TDM time division multiplexing 1470TDMA time division multiple access 1471TDOA time difference of arrival 1472TDP thermal design {point,power} 1473TECO Text Editor and Corrector 1474TFT thin film transistor 1475TFTP Trivial File Transfer Protocol 1476TIAS try it and see 1477TIFF tagged image file format 1478TITS try it to see 1479TK temporal key 1480TKIP Temporal Key Integrity Protocol 1481TLA top level aggregator 1482TLB translation lookaside buffer 1483TLD top level domain 1484TLI transport layer interface 1485TLS thread local storage 1486TLS transport layer security 1487TM Turing machine 1488TM thermal monitor 1489TMG transmogrifier 1490TMDS transition minimized differential signaling 1491TMO timeout 1492TOD time of day 1493TOS terms of service 1494TOS trusted operating system 1495TOS type of service 1496TP transaction processing 1497TPI tracks per inch 1498TPM transactions per minute 1499TPM trusted platform module 1500TPR task priority register 1501TPS transactions per second 1502TPS transmission parameters signaling 1503TR task register 1504TR token ring 1505TRL timing recovery loop 1506TRNG true random number generator 1507TS terminal services 1508TS time series 1509TS time stamp 1510TS transport stream 1511TSAN Thread Sanitizer 1512TSC time stamp counter 1513TSD time stamp disable 1514TSDB time series database 1515TSL test, set, lock 1516TSO time sharing option 1517TSO Total Store Ordering 1518TSP Time-Stamp Protocol 1519TSP Tunnel Setup Protocol 1520TSP time synchronization protocol 1521TSP traveling salesman problem 1522TSS task state segment 1523TTL time to live 1524TTL transistor-transistor logic 1525TTM translation table maps 1526TTY teletype 1527TUI {terminal,text-based,textual} user interface 1528TX {transmit out,transmitter} 1529TXG transaction group 1530TZ time zone 1531UAC user {access,account} control 1532UAF use-after-free 1533UART universal asynchronous receiver/transmitter 1534UAT user acceptance testing 1535UB undefined behavior 1536UBSAN Undefined Behavior Sanitizer 1537UC uncacheable 1538UCS uniform-cost search 1539UCS unified computing system 1540UCS universal coded character set 1541UDMA ultra DMA 1542UDO ultra density optical 1543UDP User Datagram Protocol 1544UEFI unified extensible firmware interface 1545UFS Unix File System 1546UGA universal graphics adapter 1547UI unit interval 1548UI user interface 1549UICC universal integrated circuit card 1550UID unique identifier 1551UID user identifier 1552UL upload 1553UMA uniform memory access 1554UMA upper memory area 1555UMB upper memory block 1556UML unified modeling language 1557UMPC ultra-mobile PC 1558UPNP universal plug and play 1559UPS uninterruptible power supply 1560URI uniform resource identifier 1561URL uniform resource locator 1562URN uniform resource name 1563USART universal synchronous/asynchronous receiver/transmitter 1564USB universal serial bus 1565USWC uncacheable speculative write combining 1566UT unit test 1567UTC coordinated universal time 1568UTF unicode transformation formats 1569UTP unshielded twisted pair 1570UUCP Unix-to-Unix Copy Protocol 1571UUID universally unique identifier 1572UUOC useless use of cat 1573UUT unit under test 1574UX user experience 1575VA vertical alignment 1576VA virtual address 1577VA volt-ampere 1578VAX virtual address extension 1579VB Visual Basic 1580VCA variable-gain amplifier 1581VCC common collector voltage 1582VCF voltage-controlled filter 1583VCM virtual channel memory 1584VCO voltage-controlled oscillator 1585VCS version control system 1586VESA Video Electronics Standards Association 1587VFO variable-frequency oscillator 1588VFS virtual file system 1589VG volume group 1590VGA Video Graphics Array 1591VHDCI very high density cable interconnect 1592VID {VLAN,voltage level} identifier 1593VIM Vi IMproved 1594VIPT virtually indexed, physically tagged 1595VIVT virtually indexed, virtually tagged 1596VLAN virtual local area network 1597VLIW very long instruction word 1598VLSI very large scale integration 1599VLSM variable length subnet mask 1600VM virtual {machine,memory} 1601VME virtual mode extension 1602VMX vector multimedia extensions 1603VMX virtual machine extensions 1604VOD video on demand 1605VPD vital product data 1606VPN virtual private network 1607VPWS virtual private wire service 1608VR virtual reality 1609VRAM video random access memory 1610VRF virtual routing and forwarding 1611VRM voltage regulator module 1612VRRP Virtual Router Redundancy Protocol 1613VSTP VLAN Spanning Tree Protocol 1614VTP VLAN Trunking Protocol 1615VXFS Veritas file sytem 1616VXVM Veritas volume manager 1617W watt 1618W3C World Wide Web Consortium 1619WAFL write anywhere file layout 1620WAMP Web Application Messaging Protocol 1621WAN wide area network 1622WAP Wireless Application Protocol 1623WAP wireless access point 1624WDM Windows Driver Model 1625WDDM Windows Display Driver Model 1626WDT watchdog timer 1627WEP Wired Equivalent Privacy 1628WFI wait for interrupt 1629WFQ weighted fair queuing 1630WH write hit 1631WIFI wireless fidelity 1632WLAN wireless local area network 1633WM write miss 1634WMI Windows Management Instrumentation 1635WOL Wake-on-LAN 1636WOM Wake-on-Modem 1637WOR Wake-on-Ring 1638WORM write once read many 1639WP WordPerfect 1640WP word processor 1641WP write protect 1642WPA Wi-Fi Protected Access 1643WPA2 Wi-Fi Protected Access II 1644WPS Wi-Fi Protected Setup 1645WRAM window random access memory 1646WS web services 1647WTC write through caching 1648WWAN wireless wide area network 1649WWW world wide web 1650WYSIAYG what you see is all you get 1651WYSIWYG what you see is what you get 1652XBAR crossbar 1653XDMCP X Display Manager control protocol 1654XER XML encoding rules 1655XGA Extended Graphics Array 1656XHR XMLHttpRequest 1657XIP execute in place 1658XML Extensible Markup Language 1659XNA XNA's not acronymed 1660XNS Xerox network systems 1661XOR exclusive or 1662XP extreme programming 1663XSI X/Open System Interface 1664XSL extensible stylesheet language 1665XSS cross site scripting 1666XT extended technology 1667XTI X/Open transport interface 1668XUL XML user interface language 1669YACC yet another compiler compiler 1670YAML YAML ain't markup language 1671YANG yet another next generation 1672YAWPFAPR you are welcome; please file a problem report 1673YP Yellow Pages 1674YTD year to date 1675ZAP ZFS attribute processor 1676ZBR zone bit recording 1677ZFOD zero-filled on demand 1678ZFS zettabyte file system 1679ZIF zero insertion force 1680ZIFS zero insertion force socket 1681ZIL ZFS intent log 1682ZMA zone multicast address 1683ZOI zero one infinity 1684ZOI zone of influence 1685ZPL ZFS Posix layer 1686ZVOL ZFS Volume 1687