acronyms.comp revision 1.250
1$NetBSD: acronyms.comp,v 1.250 2019/05/06 00:29:12 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 216CF compact flash 217CFB cipher feedback 218CFG context-free grammar 219CFG control-flow graph 220CFI control-flow integrity sanitizer 221CG control gate 222CGA Color Graphics Adapter 223CGI common gateway interface 224CGN Carrier-Grade NAT 225CHAP Challenge-Handshake Authentication Protocol 226CHS cylinder/head/sector 227CI continuous integration 228CI {common,component} interface 229CIDR Classless Inter-Domain Routing 230CIF common intermediate format 231CIFS Common Internet File System 232CIL common intermediate language 233CIR carrier-to-interference ratio 234CIS contact image sensor 235CISC complex instruction set {computer,computing} 236CJK Chinese, Japanese, [and] Korean 237CLF common log format 238CLI command line interface 239CLR common language runtime 240CLTT closed loop thermal throttling 241CLUT color look-up table 242CLV constant linear velocity 243CM configuration management 244CMA concert multithread architecture 245CMC chassis management controller 246CMC corrected machine check 247CMS {configuration,content,course} management system 248CMI control {management,method} interface 249CMOS complementary metal-oxide-semiconductor 250CMP chip multi-processing 251CMS content management system 252CMYK cyan magenta yellow black 253CN {common,canonical} name 254CNC computer numerical control 255CNR carrier-to-noise ratio 256COF current operating frequency 257COFDM coded orthogonal frequency division multiplexing 258COFF common object file format 259COM component object model 260COM computer on module 261COMA cache-only memory architecture 262CORBA common object request broker architecture 263COS class of service 264COW copy-on-write 265CP continuous pilot 266CPB core performance boost 267CPC central processor complex 268CPC cpu performance counters 269CPE common phase error 270CPE common platform enumeration 271CPER common platform error record 272CPG clock pulse generator 273CPI cycles per instruction 274CPL current privilege level 275CPLD complex programmable logic device 276CPP C preprocessor 277CPS characters per second 278CPT command pass through 279CPU central processing unit 280CR carriage return 281CRC cyclic redundancy check 282CRL carrier recovery loop 283CRLF carriage return line feed 284CRT cathode ray tube 285CRUD create, read, update, and delete 286CS cable select 287CS chip select 288CS code segment 289CS computer science 290CSDL {common,conceptual} schema definition language 291CSI channel state information 292CSI common system interface 293CSMA carrier sense multiple access 294CSMA/CA carrier sense multiple access with collision avoidance 295CSMA/CD carrier sense multiple access with collision detection 296CSR control [and] status registers 297CSRG Computer Systems Research Group 298CSS cascading style sheets 299CSV comma-separated values 300CTF compact c type format 301CTM close to metal 302CTR counter [mode] 303CTS clear to send 304CUA common user access 305CUT coordinated universal time 306CV control voltage 307CVE common vulnerabilities and exposures 308CVS Concurrent Versions System 309DA destination address 310DAA distributed application architecture 311DAB digital audio broadcasting 312DAC digital [to] analog converter 313DAC discretionary access control 314DAD duplicate address detection 315DANE DNS-based Authentication of Named Entities 316DAO disk at once 317DAP Directory Access Protocol 318DAT digital audio tape 319DAT dynamic acceleration technology 320DB database 321DBA database administrator 322DBA dynamic bandwidth allocation 323DBB data bus buffer 324DBC design by contract 325DBL dynamic buffer limiting 326DBMS database management system 327DBS database server 328DC direct current 329DCC Direct Client-to-Client 330DCC direct cable connect 331DCD data carrier detect 332DCE data control equipment 333DCE distributed computing environment 334DCIM data center infrastructure management 335DCIM digital camera images 336DCL Digital Command Language 337DCOM distributed component object model 338DCOP Desktop COmmunication Protocol 339DCS data collection systems 340DCT discrete cosine transform 341DCU data cache unit 342DDC display data channel 343DDE dynamic data exchange 344DDK device driver kit 345DDL data description language 346DDR double data rate 347DDS direct digital sound 348DDWG Digital Display Working Group 349DE debugging extensions 350DE desktop environment 351DEA data encryption algorithm 352DEC Digital Equipment Corporation 353DEK data encryption key 354DEP data execution prevention 355DER distinguished encoding rules 356DES Data Encryption Standard 357DF don't fragment 358DFA deterministic finite automaton 359DFC data flow control 360DFS depth first search 361DFS distributed file system 362DFSAN Data Flow Sanitizer 363DFT diagnostic function test 364DFT discrete Fourier transform 365DGL data generation language 366DH Diffie-Hellman 367DHCP Dynamic Host Configuration Protocol 368DIFS distributed inter-frame space 369DIMM dual inline memory module 370DIRT design in real time 371DL diode logic 372DL discrete logarithm 373DL download 374DLE data link escape 375DLL dynamic link library 376DLP discrete logarithm problem 377DMA direct memory access 378DMI desktop management interface 379DMS document management system 380DMT discrete multitone modulation 381DMU data management layer 382DNARD Digital network appliance reference design 383DND drag and drop 384DNLC directory name lookup cache 385DNS Domain Name System 386DNSSEC DNS Security Extensions 387DOE distributed object environment 388DOF data over fibre 389DOM document object model 390DOS denial of service 391DOS disk operating system 392DP DisplayPort 393DPC deferred procedure call 394DPCM differential pulse code modulation 395DPD dead peer detection 396DPI deep packet inspection 397DPI dots per inch 398DPL descriptor privilege level 399DPS Display PostScript 400DPST display power savings technology 401DRAAS disaster recovery as a service 402DRAM dynamic random access memory 403DRBG deterministic random bit generator 404DRI direct rendering infrastructure 405DRM digital rights management 406DRRS display refresh rate switching 407DS debug store 408DSA digital signature algorithm 409DSAP destination service access point 410DSB double-sideband modulation 411DSDT differentiated system descriptor table 412DSF device special file 413DSL dataset and snapshot layer 414DSL digital subscriber line 415DSL domain specific language 416DSLAM digital subscriber line access multiplexer 417DSN delivery status notification 418DSO dynamic shared object 419DSP digital signal processor 420DSSS direct sequence spread spectrum 421DTD document type definition 422DTE data terminal equipment 423DTE dumb terminal emulator 424DTL diode-transistor logic 425DTLS datagram transport layer security 426DTS digital thermal sensor 427DUT device under test 428DVB digital video broadcasting 429DVCS distributed version control system 430DVD digital versatile disc 431DVFS dynamic voltage and frequency scaling 432DVI device independent 433DVI Digital Visual Interface 434DVR digital video recorder 435E-XER extended XML encoding rules 436EABI embedded-application binary interface 437EAI Email Address Internationalization 438EAI Enterprise Application Integration 439EAP Extensible Authentication Protocol 440EAPOL EAP over Lan 441EBCDIC Extended Binary Coded Decimal Interchange Code 442EBDA Extended BIOS Data Area 443EBNF extended backus-naur form 444EBR extended boot record 445EC elliptic curve 446ECC elliptic curve cryptography 447ECC error correction code 448ECDH elliptic curve Diffie-Hellman 449ECDL elliptic curve discrete logarithm 450ECDLP elliptic curve discrete logarithm problem 451ECDSA elliptic curve digital signature algorithm 452ECL emitter-coupled logic 453ECN explicit congestion notification 454ECP enhanced capability port 455ECS enhanced chip set 456ECS extended configuration space 457EDAC error detection and correction 458EDAT enhanced dynamic acceleration technology 459EdDSA Edwards curve digital signature algorithm 460EDGE explicit data graph execution 461EDID extended display identification data 462EDO extended data out 463EDS electronical data sheet 464EEE energy efficient ethernet 465EEPROM electrically erasable programmable read only memory 466EFI extensible firmware interface 467EFL emitter follower logic 468EFM eight to fourteen modulation 469EFS extent file system 470EGA Enhanced Graphics Adapter 471EGP exterior gateway protocol 472EH extension header 473EIDE enhanced IDE 474EISA extended industry standard architecture 475EINJ error injection table 476ELF executable and linking format 477ELS entry level system 478EMI electro-magnetic interference 479EMP electro-magnetic pulse 480EMR electro-magnetic radiation 481EMACS Editor MACroS 482EOF end of file 483EOI end of interrupt 484EOIS end of interactive support 485EOL end of life 486EOL end of line 487EOT end of transmission 488EPIC explicitly parallel instruction computing 489EPP enhanced parallel port 490EPRML extended partial response, maximum likelihood 491EPROM erasable programmable read only memory 492ERD emergency recovery disk 493ERD entity relationship diagram 494ERE extended regular expression 495ERST error record serialization table 496ESAN Efficiency Sanitizer 497ESB enterprise service bus 498ESDI enhanced small disk interface 499ESDRAM enhanced synchronous dynamic random access memory 500ESI enclosure services interface 501ESS electronic switching system 502ESS extended service set 503ESSID extended service set identifier 504EST enhanced speedstep 505ETL extract, transform, load 506EU execution unit 507EULA end user license agreement 508FAT file allocation table 509FBRAM frame buffer random access memory 510FCIF full common intermediate format 511FCL fiber channel loop 512FCS frame check sequence 513FDC floppy disk controller 514FDD floppy disk drive 515FDDI fiber distributed data interface 516FDE full disk encryption 517FDT flattened device tree 518FEA finite element analysis 519FEC forward error correction 520FET field-effect transistor 521FF finite field 522FF form feed 523FFDH finite-field Diffie-Hellman 524FFH functional fixed hardware 525FFI foreign function interface 526FFM focus follows mouse 527FFS Fast File System 528FFS find first set 529FFT fast Fourier transform 530FG floating gate 531FHSS frequency hop spread spectrum 532FID frequency identifier 533FIFO first in, first out 534FILO first in, last out 535FIPS Federal Information Processing Standards 536FIR fast infrared 537FLOPS floating [point] operations per second 538FLOSS free/libre/open source software 539FM frequency modulation 540FMR false match rate 541FOSS free/open source software 542FPGA field programmable gate array 543FPM fast page mode 544FPR floating point register 545FPU floating point unit 546FQDN fully qualified domain name 547FRR false rejection rate 548FRU field replaceable unit 549FS file system 550FSB front side bus 551FSCK file system check 552FSF Free Software Foundation 553FSK frequency shift keying 554FSM finite-state machine 555FTA fault tree analysis 556FTL flash translation layer 557FTP File Transfer Protocol 558FTPS File Transfer Protocol Secure 559FUS fast user switching 560FWH firmware hub 561FWS folding white space 562GAL generic array logic 563GAS generic address structure 564GC garbage collector 565GCM Galois counter mode 566GCR group-coded recording 567GDI Graphics Device Interface 568GDT global descriptor table 569GEM graphics environment manager 570GEM graphics execution manager 571GENA general event notification architecture 572GHC Glasgow Haskell compiler 573GHES generic hardware error source 574GIC generic interrupt controller 575GID group identifier 576GIF graphics interchange format 577GMCH graphics and memory controller hub 578GNU GNU's Not Unix 579GOP graphics output protocol 580GOT global offset table 581GPE general purpose event 582GPF general protection fault 583GPG GNU Privacy Guard 584GPL [GNU] General Public License 585GPR general purpose register 586GPS generalized processor sharing 587GPT GUID partition table 588GPU graphics processing unit 589GR golden ratio 590GRE generic routing encapsulation 591GSI global system interrupt 592GUI graphical user interface 593GUID globally unique identifier 594GVFS git virtual file system 595HA high availability 596HAL hardware abstraction layer 597HAT hashed array tree 598HATEOAS hypermedia as the engine of application state 599HBA host bus adapter 600HCF halt and catch fire 601HCI host controller interface 602HCI human-computer interaction 603HCL hardware compatibility list 604HDCP High-bandwidth Digital Content Protection 605HDD hard disk drive 606HDL hardware description language 607HDMI High-Definition Multimedia Interface 608HDTV high-definition television 609HECI host embedded controller interface 610HEST hardware error source table 611HF high frequency 612HFM highest frequency mode 613HFS hierarchical file system 614HID human interface device 615HKP HTTP Keyserver Protocol 616HLL high-level language 617HMA high memory area 618HMI human-machine interface 619HOOD hierarchical object oriented design 620HP Hewlett-Packard 621HPC high performance computing 622HPET high precision event timer 623HSM hardware security module 624HSM hierarchical storage management 625HT hyper-threading 626HTC hardware thermal control 627HTCC high temperature co-fired ceramic 628HTML HyperText Markup Language 629HTT hyper-threading technology 630HTTP Hypertext Transfer Protocol 631HTTPS Hypertext Transfer Protocol Secure 632HVM hardware virtual machine 633HVDS High-Voltage Differential Signaling 634HWASAN Hardware-assisted Address Sanitizer 635HZ Hertz 636I2O intelligent input/output 637IA information assurance 638IAAS infrastructure as a service 639IANA Internet Assigned Numbers Authority 640IBC iterated block cipher 641IBM International Business Machines 642IBS instruction based sampling 643IBSS independent basic service set 644IC integrated circuit 645ICA independent computer architecture 646ICB Internet Citizen's Band 647ICE in-circuit emulator 648ICE internal compiler error 649ICH I/O controller hub 650ICMP Internet Control Message Protocol 651ICT information and communications technology 652ICW initialization command word 653IDA Intel dynamic acceleration 654IDCMP Intuition direct communication message port 655IDE integrated development environment 656IDE integrated drive electronics 657IDPS intrusion detection [and] prevention system 658IDRP inter-domain routing protocol 659IDS intrusion detection system 660IDT interrupt descriptor table 661IE Internet Explorer 662IEC International Electrotechnical Commission 663IEEE Institute of Electrical and Electronics Engineers 664IESG Internet Engineering Steering Group 665IETF Internet Engineering Task Force 666IF intermediate frequency 667IFCM isochronous flow control mode 668IFF Interchange File Format 669IFS internal field separator 670IGD Internet gateway device 671IGMP Internet Group Management Protocol 672IGP interior gateway protocol 673IHV independent hardware vendor 674IKE Internet key exchange 675ILM internal loopback mode 676ILOM integrated lights-out management 677ILP instruction level parallelism 678IM instant messaging 679IMAP Internet Message Access Protocol 680IMC integrated memory controller 681IMCR interrupt mode configuration register 682IMR interrupt mask register 683IMS information management system 684IMSI international mobile subscriber identity 685INCITS InterNational Committee for Information Technology Standards 686IO input/output 687IOCTL input/output control 688IOM input/output managers 689IOMMU input/output memory management unit 690IOT Internet of Things 691IP Internet Protocol 692IP intellectual property 693IPC instructions per cycle 694IPC interprocess communication 695IPCF interprocess communication facility 696IPE integrated programming environment 697IPI intelligent peripheral interface 698IPI interprocessor interrupt 699IPL Initial Program Load 700IPL Interrupt Priority Level 701IPMB Intelligent Platform Management Bus 702IPMI Intelligent Platform Management Interface 703IPNG Internet Protocol, Next Generation 704IPS in-plane switching 705IPS intrusion prevention system 706IPSEC Internet Protocol Security 707IRC Internet Relay Chat 708IRDA infrared data association 709IRQ interrupt request 710IRQL interrupt request level 711IRR interrupt request register 712IRTF Internet Research Task Force 713IS information system 714ISA industry standard architecture 715ISA instruction set architecture 716ISDN integrated services digital network 717ISI inter-symbol interference 718ISL initial system load 719ISM industrial, scientific, [and] medical 720ISN initial serial number 721ISO International Standards Organization 722ISOC Internet Society 723ISP Internet service provider 724ISR in-service register 725ISR interrupt service routine 726IST interrupt stack table 727ISV independent software vendor 728IT information technology 729ITB Intel Turbo Boost 730ITIL information technology infrastructure library 731ITP in-target probe 732ITSM IT service management 733IV initialization vector 734IVT interrupt vector table 735JBOD just a bunch of disks 736JCL Job Control Language 737JFET junction [gate] field-effect transistor 738JIT just in time 739JPEG Joint Photographic Experts Group 740JRE Java Runtime Environment 741JSON JavaScript Object Notation 742JTAG joint test action group 743KASLR kernel address space layout randomization 744KB keyboard 745KB kilobyte 746KBD keyboard 747KBD kilobaud 748KCS keyboard controller style 749KLOC thousand lines of code 750KMS kernel-mode setting 751KPI kernel programming interface 752KVA kernel virtual address 753KVM kernel virtual machine 754KVM kernel virtual memory 755KVM keyboard, video, [and] mouse 756L2CAP link layer control and adaptation protocol 757LAMP Linux Apache MySQL {Perl,PHP,Python} 758LAN local area network 759LAPIC local advanced programmable interrupt controller 760LAR load access rights 761LBA logical block addressing 762LBNF labeled backus-naur form 763LBS location-based service 764LCD liquid crystal display 765LCP link control protocol 766LDA local delivery agent 767LDAP Lightweight Directory Access Protocol 768LDR light-dependent resistor 769LDT local descriptor table 770LE logical extent 771LED light emitting diode 772LELL low energy link layer 773LER label edge router 774LF line feed 775LF low frequency 776LFM lowest frequency mode 777LFN long file names 778LFO low-frequency oscillation 779LFS log-structured file system 780LFU least frequently used 781LHP loop heat pipe 782LIF logical interchange format 783LIFO last in, first out 784LILO LInux LOader 785LILO last in, last out 786LINT local interrupt 787LIR local Internet registry 788LISP LISt Processor 789LISP Locator/ID Separation Protocol 790LKM {Linux,loadable} kernel module 791LKML Linux kernel mailing list 792LL load linked 793LL/SC load linked/store conditional 794LLC logical link control 795LLD low-level design 796LLDD low-level design document 797LLDP link layer discovery protocol 798LLF low level format 799LLMNR link-local multicast name resolution 800LLVM Low Level Virtual Machine 801LM long mode 802LMM link management mode 803LMP link management protocol 804LNO loop nest optimization 805LOC lines of code 806LOM lights-out management 807LPE Linux performance events 808LPC low pin count 809LPS local positioning system 810LRC longitudinal redundancy check 811LRM left-to-right mark 812LRO left-to-right override 813LRU least recently used 814LSAN Leak Sanitizer 815LSB Linux standards base 816LSB least significant {bit,byte} 817LSI large scale integration 818LSL load segment limit 819LSM log structured merge 820LSN Large Scale NAT 821LSN log sequence number 822LSR label switch router 823LTCC low temperature co-fired ceramic 824LTO linear tape-open 825LTO link time optimization 826LTR left to right 827LTR load task register 828LTR letter(-sized paper) 829LTS long term support 830LUA Lua Uppercase Accident 831LUN logical unit number 832LV logical volume 833LVM logical volume management 834LVT local vector table 835LVDS Low-Voltage Differential Signaling 836LWP light-weight process 837LZSS Lempel Ziv Storer Szymanski 838LZW Lempel Ziv Welch 839MAC mandatory access control 840MAC {media,medium} access control 841MAC message authentication {check,code} 842MADT multiple APIC descriptor table 843MB megabyte 844MBA multi-boot agent 845MBR master boot record 846MBS megabits per second 847MC memory controller 848MCA machine check architecture 849MCA MicroChannel architecture 850MCC multiversion concurrency control 851MCE machine check exception 852MCGA Multi-Color Graphics Array 853MCH memory controller hub 854MCM multi-chip module 855MCQ memory controlled queue 856MD machine-dependent 857MD-SAL model-driven service abstraction layer 858MDA mail delivery agent 859MDA Monochrome Display Adapter 860MDC Management Data Clock 861MDI Medium Dependent Interface 862MDI-X Medium Dependent Interface Crossover 863MDIO Management Data Input/Output 864MDMX MIPS Digital Media eXtension 865MDRAM multibank dynamic random access memory 866MESI modified, exclusive, shared, invalid 867MFC merge from current 868MFC Microsoft Foundation Classes 869MFM modified frequency modulation 870MFU most frequently used 871MI machine-independent 872MI machine interface 873MIB management information base 874MIC message integrity {check,code} 875MID mobile Internet device 876MIDI musical instrument digital interface 877MIF management information format 878MII media independent interface 879MIM man in the middle 880MIMD multiple instruction, multiple data 881MIME Multipurpose Internet Mail Extensions 882MIMO multiple input multiple output 883MIPS million instructions per second 884MIPS Microprocessor without Interlocked Pipeline Stages 885MISD multiple instruction, single data 886MIT Massachusetts Institute of Technology 887MITM man in the middle 888ML machine language 889ML machine learning 890ML mailing list 891ML markup language 892ML maximum likelihood 893MLC multi-level cell 894MLD multicast listener discovery 895MLHP micro loop heat pipe 896MMF multi-mode fiber 897MMIC monolithic microwave integrated circuit 898MMIO memory mapped input/output 899MMORPG massive multiplayer online role playing game 900MMU memory management unit 901MMX matrix math extension 902MMX multimedia extension 903MMX multiple math extension 904MO magneto-optical 905MOESI modified, owned, exclusive, shared, invalid 906MOF maximum operating frequency 907MOSFET metal-oxide-semiconductor field-effect transistor 908MOSI modified, owned, shared, invalid 909MP multi-platform 910MP multiplayer 911MP {multiprocessing,multiprocessor} 912MPEG moving picture experts group 913MPI message passing interface 914MPLS Multiprotocol Label Switching 915MPP massively parallel processor 916MPS memory pool system 917MPS multiprocessor specification 918MQTT Message Queuing Telemetry Transport 919MR modem ready 920MRU most recently used 921MS Microsoft 922MSAN Memory Sanitizer 923MSB most significant {bit,byte} 924MSC message sequence chart 925MSE mean square error 926MSF minutes seconds frames 927MSI message signaled interrupt 928MSI modified, shared, invalid 929MSR {machine state,model-specific} register 930MSS maximum segment size 931MSTP Multiple Spanning Tree Protocol 932MT machine translation 933MTA mail transfer agent 934MTBF mean time between failures 935MTP media transfer protocol 936MTRR memory type range register 937MTTF mean time to failure 938MTU maximum transmission unit 939MUA mail user agent 940MUD multi-user domain 941MVCC multiversion concurrency control 942MWE module width encoding 943MX mail exchange 944NACK negative acknowledgement 945NAK negative acknowledgement 946NAN not a number 947NAPT Network Address Port Translation 948NAS network attached storage 949NAT network address translation 950NAV network allocation vector 951NC numerical control 952NC-SI network controller sideband interface 953NCO numerically-controlled oscillator 954NCP Network Control Protocol 955NCSI network connectivity status indicator 956NCQ native command queuing 957ND neighbor discovery 958NDFA nondeterministic finite automaton 959NE numeric error 960NEWS Network extensible Window System 961NFA nondeterministic finite automaton 962NFC near-field communication 963NFCI no functional change intended 964NFS network file system 965NFV network function virtualization 966NIA next instruction address 967NIC network information center 968NIC network interface card 969NIDS network intrusion detection system 970NIP network interface protocol 971NIPS network intrusion prevention system 972NIS network information service 973NIST National Institute of Standards and Technology 974NLS native language support 975NMI non-maskable interrupt 976NNTP Network News Transfer Protocol 977NOC network operations center 978NOP no operation 979NOS network operating system 980NP nondeterministic polynomial time 981NRND not recommended for new designs 982NRZ non-return to zero 983NSA nation-state adversary 984NSA no such agency 985NSA National Security Agency 986NTM non-deterministic Turing machine 987NTP Network Time Protocol 988NUMA non-uniform memory access 989NVMM NetBSD Virtual Machine Monitor 990NVMM non-volatile main memory 991NVRAM non-volatile random access memory 992NW not write-through 993NX no execute 994OAEP optimal asymmetric encryption padding 995OAM operations, administration, and {management,maintenance} 996OBO off by one 997OBOE off by one error 998OCL object constraint language 999OCR optical character recognition 1000ODE offline device environment 1001ODM object data manager 1002ODCM on-demand clock modulation 1003ODT on-die termination 1004OEM original equipment manufacturer 1005OFB output feedback 1006OFDM orthogonal frequency division multiplexing 1007OFET organic field-effect transistor 1008OLAP online analytical processing 1009OLE object linking and embedding 1010OLTP online transaction processing 1011ONFI open nand flash interface 1012OO OpenOffice 1013OO object oriented 1014OOB out of band 1015OOE out of order execution 1016OOM out of memory 1017OOO OpenOffice.org 1018OOP object oriented programming 1019OOPS object oriented programming systems 1020OOSE object oriented software engineering 1021OPM operations per minute 1022OPS operations per second 1023OQL Object Query Language 1024ORB object request broker 1025ORM object-relational mapping 1026OS operating system 1027OSD open source definition 1028OSF open software foundation 1029OSI Open Source Initiative 1030OSI open systems interconnection 1031OSPF open shortest path first 1032OSPM OS power management 1033OSS open sound system 1034OSS open source software 1035OSVW operating system visible workarounds 1036OTP one time password 1037OTP open telecom platform 1038OU organizational unit 1039OUI organizationally unique identifier 1040OWL Web Ontology Language 1041P2P PCI to PCI 1042P2P peer to peer 1043PA phase accumulator 1044PA physical address 1045PAAS platform as a service 1046PAC phase-amplitude converter 1047PAE physical address extension 1048PAL phase alternating line 1049PAL programmable array logic 1050PAM pluggable authentication modules 1051PAM pulse amplitude modulation 1052PAP password authentication protocol 1053PAT page attribute table 1054PAT port address translation 1055PATA parallel ATA 1056PAX portable archive exchange 1057PBE pending break encoding 1058PBE programming by example 1059PC personal computer 1060PC program counter 1061PCB printed circuit board 1062PCB process control block 1063PCB Protocol Control Block 1064PCC Portable C Compiler 1065PCD page-level cache disable 1066PCE path computation element 1067PCE performance-monitor counter enable 1068PCEP Path Computation Element Protocol 1069PCH platform controller hub 1070PCI peripheral component interconnect 1071PCM phase change memory 1072PCM pulse code modulation 1073PCMCIA Personal Computer Memory Card International Association 1074PCP Port Control Protocol 1075PD public domain 1076PDA personal digital assistant 1077PDA pushdown automaton 1078PDAG propositional directed acyclic graph 1079PDB power distribution board 1080PDF portable document format 1081PDM pulse-duration modulation 1082PDN pull-down network 1083PDP page {descriptor,directory} page 1084PDS product data sheet 1085PDU protocol data unit 1086PE protection enable 1087PEAP Protected EAP 1088PECI platform environment control interface 1089PEP protocol extension protocol 1090PER packed encoding rules 1091PFS perfect forward secrecy 1092PGAS partitioned global address space 1093PGE page global enable 1094PGP Pretty Good Privacy 1095PHB PCI host bridge 1096PHP PHP: Hypertext Preprocessor 1097PIC performance instrumentation counters 1098PIC position independent code 1099PIC programmable interrupt controller 1100PICNIC problem in chair, not in computer 1101PID process id 1102PIE position independent executable 1103PIL Priority Interrupt Level 1104PIM personal information manager 1105PIM platform-independent model 1106PIO programmed input/output 1107PIPT physically indexed, physically tagged 1108PIQ prefetch input queue 1109PIT programmable interrupt timer 1110PIV personal identity verification 1111PIX Private Internet eXchange 1112PKCS public-key cryptography standards 1113PKI public key infrastructure 1114PLC programmable logic controller 1115PLD programmable logic device 1116PLL phase locked loop 1117PLRU pseudo LRU 1118PLTM package level thermal management 1119PM power management 1120PM {phase,pulse} modulation 1121PMC performance monitoring counters 1122PME power management event 1123PMEG page map entry group 1124PMI performance monitoring infrastructure 1125PMI platform management interrupt 1126PMIC power management integrated circut 1127PMIO port-mapped input/output 1128PMT photo-multiplier tube 1129PMU performance monitoring units 1130PMU power management unit 1131PNG portable network graphics 1132PNP plug and play 1133POE power over ethernet 1134POF probability of failure 1135POP Post Office Protocol 1136POP power on password 1137POSIX Portable Operating System Interface [for Unix] 1138POST power on self test 1139POTS plain old telephone system 1140POWER Performance Optimization With Enhanced RISC 1141POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1142PP pair programming 1143PPB PCI [to] PCI bridge 1144PPC PowerPC 1145PPC Power Performance Computing 1146PPI pixels per inch 1147PPM pages per minute 1148PPP Point-to-Point Protocol 1149PPPOA Point-to-Point Protocol over ATM 1150PPPOE Point-to-Point Protocol over Ethernet 1151PPU physics processing unit 1152PRAM Parameter RAM 1153PRBS pseudorandom bit sequence 1154PRG pseudorandom generator 1155PRF pseudorandom function [family] 1156PRML partial response, maximum likelihood 1157PRN pseudorandom {noise,number} 1158PRNG pseudorandom number generator 1159PROM programmable read only memory 1160PRP pseudorandom permutation 1161PRU Programmable Realtime Unit 1162PS PostScript 1163PSD power spectral density 1164PSE page size extensions 1165PSK phase shift keying 1166PSK pre-shared key 1167PSTN public switched telephone network 1168PSW program status word 1169PTE page table entry 1170PTLA pseudo top level aggregator 1171PTP page table page 1172PTV perceived target value 1173PU processing unit 1174PUC personal unblocking code 1175PUN physical unit number 1176PV physical volume 1177PVG physical volume group 1178PVI protected-mode virtual interrupt 1179PVST Per-VLAN Spanning Tree 1180PWM pulse width modulation 1181PXE preboot execution environment 1182QA quality assurance 1183QAM quadrature amplitude modulation 1184QAM quality assurance management 1185QBE query by example 1186QC quality control 1187QDI quasi delay insensitive 1188QCIF quarter common intermediate format 1189QOS quality of service 1190QVL qualified vendor list 1191R/O read only 1192R/W read/write 1193RA receiver address 1194RA remote assistance 1195RA resource affinity 1196RA router advertisement 1197RAD rapid application development 1198RAID redundant array of {independent,inexpensive} disks 1199RAM random access memory 1200RAS reliability, availability and serviceability 1201RAS remote access service 1202RAS restartable atomic sequence 1203RAS row address strobe 1204RBF radial basis function 1205RBNF routing backus-naur form 1206RBT red-black tree 1207RC release candidate 1208RC remote control 1209RC run commands 1210RCS Revision Control System 1211RCS revision control system 1212RCU read, copy, update 1213RDB Rigid Disk Block 1214RDBMS relational database management system 1215RDF Resource Description Framework 1216RDM relational data model 1217RDMA remote direct memory access 1218RDRAM Rambus DRAM 1219RE regular expression 1220REST representational state transfer 1221RF radio frequency 1222RFI radio frequency interference 1223RFO request for ownership 1224RFU reserved for future use 1225RGB red green blue 1226RGBA red green blue alpha 1227RGMII reduced gigabit media independent interface 1228RH read hit 1229RHEL Red Hat Enterprise Linux 1230RHL Red Hat Linux 1231RIB routing information base 1232RIFF Resource Interchange File Format 1233RIP Raster Image Processor 1234RIP Routing Information Protocol 1235RIR regional Internet registry 1236RISC reduced instruction set {computer,computing} 1237RKM ROM Kernel Manual 1238RLE run length encoding 1239RLL run length limited 1240RLO right-to-left override 1241RM read miss 1242RMCP Remote Management Control Protocol 1243RMI remote method invocation 1244RMO Relaxed Memory Ordering 1245RMPM rapid memory power management 1246RMS root mean square 1247RMW read, modify, write 1248RNG random number generator 1249ROM read only memory 1250RPC remote procedure call 1251RPKI resource PKI 1252RPL requested privilege level 1253RPM revolutions per minute 1254RPN reverse Polish notation 1255RPVST Rapid Per-VLAN Spanning Tree 1256RR random replacement 1257RR round robin 1258RS relay station 1259RSA Rivest, Shamir, [and] Adleman 1260RSIP Realm Specific IP 1261RSN Robust Secure Network 1262RSS really simple syndication 1263RSS residual sum of squares 1264RSTP Rapid Spanning Tree Protocol 1265RT real time 1266RTC real time clock 1267RTC real time computing 1268RTF rich text format 1269RTL register transfer language 1270RTL resistor-transistor logic 1271RTL right to left 1272RTOS real time operating system 1273RTS request to send 1274RTT round trip time 1275RUP rational unified process 1276RW Rabin-Williams 1277RWM read-write memory 1278RX {receive,receiver} 1279S/PDIF Sony/Philips Digital Interface Format 1280SA security advisory 1281SA security association 1282SA source address 1283SA structured analysis 1284SAAS software as a service 1285SACD super audio compact disc 1286SAD security association database 1287SAL {service,system} abstraction layer 1288SAM serial access memory 1289SAM sum addressed memory 1290SAML security assertion markup language 1291SAN storage area network 1292SAP service access point 1293SAPIC streamlined advanced programmable interrupt controller 1294SASD structured analysis, structured design 1295SASI Shugart Associates System Interface 1296SASL simple authentication [and] security layer 1297SATA serial advanced technology attachment 1298SAX simple API for XML 1299SB sound blaster 1300SBU standard build unit 1301SC store conditional 1302SCA source code analyzer 1303SCADA supervisory control and data acquisition 1304SCC single chip cloud 1305SCC source code control 1306SCCS Source Code Control System 1307SCI scalable coherent interface 1308SCI system control interrupt 1309SCM software configuration management 1310SCM source code management 1311SCM storage-class memory 1312SCO synchronous connection orientated 1313SCP secure copy 1314SCSI Small Computer System Interface 1315SCTP Stream Control Transmission Protocol 1316SDEI software delegated exception interface 1317SDI symbol deinterleave 1318SDK software development kit 1319SDL Simple Declarative Language 1320SDL Simple Direct-media Layer 1321SDLC {software,system,systems} development life cycle 1322SDN software defined networking 1323SDP Session Description Protocol 1324SDRAM synchronous dynamic random access memory 1325SDS software defined storage 1326SDT syntax-directed translation 1327SEA synchronous external abort 1328SEGV segmentation violation 1329SEO search engine optimization 1330SES SCSI enclosure services 1331SFC sequential function chart 1332SFI simple firmware interface 1333SFI software fault isolation 1334SFTP SSH File Transfer Protocol 1335SFTP Serial File Transfer Protocol 1336SFTP Simple File Transfer Protocol 1337SGMII serial gigabit media independent interface 1338SGRAM synchronous graphics random access memory 1339SHA secure hash algorithm 1340SIDH supersingular isogeny Diffie-Hellman 1341SIEM security information and event management 1342SIF source input format 1343SIFS short inter-frame space 1344SIM subscriber identity module 1345SIMD single instruction, multiple data 1346SIMM single inline memory module 1347SIP Session Initiation Protocol 1348SIR signal-to-interference ratio 1349SIR slow infrared 1350SISD single instruction, single data 1351SLAAC stateless address auto-configuration 1352SLC single-level cell 1353SLDRAM synchronous-link dynamic random access memory 1354SLED single large expensive disk 1355SLI scalable link interface 1356SLI scan-line interleave 1357SLIC system license internal code 1358SLOC source lines of code 1359SLRU segmented LRU 1360SMA smart memory access 1361SMAF system management action field 1362SMAP Simple Mail Access Protocol 1363SMAP supervisor mode access prevention 1364SMART self-monitoring analysis and reporting technology 1365SMB Server Message Block 1366SMB system management bus 1367SMBIOS System Management BIOS 1368SMC system management controller 1369SMD storage module device 1370SMEP supervisor mode execution protection 1371SMF single mode fiber 1372SMI structure of management information 1373SMI system management interrupt 1374SMM system management mode 1375SMP symmetric multiprocessing 1376SMT simultaneous multithreading 1377SMTP Simple Mail Transfer Protocol 1378SMU system management unit 1379SNA systems network architecture 1380SNAP Sub-Network Access Protocol 1381SNIA Storage Networking Industry Association 1382SNMP Simple Network Management Protocol 1383SNR signal-to-noise ratio 1384SOA service oriented architecture 1385SOAP Simple Object Access Protocol 1386SOC system on chip 1387SOF start of frame 1388SOH start of header 1389SOHO small office/home office 1390SOL serial over LAN 1391SOM system on module 1392SP service pack 1393SP stack pointer 1394SPA storage pool allocator 1395SPARC scalable processor architecture 1396SPARQL SPARQL Protocol and RDF Query Language 1397SPD security policy database 1398SPD serial presence detect 1399SPDIF Sony/Philips digital interface format 1400SPI serial peripheral interface 1401SPI stateful packet inspection 1402SPL system interrupt priority level 1403SPL spinlock 1404SPMD single process, multiple data 1405SPR special purpose register 1406SPT sectors per track 1407SQA software quality assurance 1408SQCIF sub quarter common intermediate format 1409SQL Structured Query Language 1410SRAM static random access memory 1411SRC sample rate conversion 1412SRP SCSI RDMA protocol 1413SS self-snoop 1414SS stack segment 1415SSA static single assignment 1416SSAP source service access point 1417SSB single-sideband modulation 1418SSD solid state drive 1419SSE streaming SIMD extensions 1420SSFDC solid state floppy disc card 1421SSH secure shell 1422SSI server side includes 1423SSID service set identifier 1424SSL secure sockets layer 1425SSP stack smashing protection 1426STC software thermal control 1427STD state transition diagram 1428STOMP Streaming Text Oriented Messaging Protocol 1429STP Spanning Tree Protocol 1430STP shielded twisted pair 1431SUN Stanford University Network 1432SUS Single Unix Specification 1433SUT system under test 1434SVG scalable vector graphics 1435SVGA Super Video Graphics Array 1436SVI {switch,switched} virtual interface 1437SVM secure virtual machine 1438SVM support vector machine 1439SVR System V Release 1440SVS Separate Virtual Space 1441SWF Shockwave Flash 1442SWIG simplified wrapper [and] interface generator 1443SYR symbol timing recovery 1444TA test assertion 1445TA transmitter address 1446TAI international atomic time 1447TAO track at once 1448TAOCP The Art of Computer Programming 1449TAP Test Anything Protocol 1450TAS test and set 1451TB terabyte 1452TBNF transitional backus-naur form 1453TCB trace capture buffer 1454TCB trusted computing base 1455TCC thermal control circuit 1456TCL tool command language 1457TCP Transmission Control Protocol 1458TCQ tagged command queueing 1459TDC time [to] digital converter 1460TDD test-driven development 1461TDD time division duplex 1462TDM time division multiplexing 1463TDMA time division multiple access 1464TDOA time difference of arrival 1465TDP thermal design {point,power} 1466TECO Text Editor and Corrector 1467TFT thin film transistor 1468TFTP Trivial File Transfer Protocol 1469TIAS try it and see 1470TIFF tagged image file format 1471TITS try it to see 1472TK temporal key 1473TKIP Temporal Key Integrity Protocol 1474TLA top level aggregator 1475TLB translation lookaside buffer 1476TLD top level domain 1477TLI transport layer interface 1478TLS thread local storage 1479TLS transport layer security 1480TM Turing machine 1481TM thermal monitor 1482TMDS transition minimized differential signaling 1483TMO timeout 1484TOD time of day 1485TOS terms of service 1486TOS trusted operating system 1487TOS type of service 1488TP transaction processing 1489TPI tracks per inch 1490TPM transactions per minute 1491TPM trusted platform module 1492TPR task priority register 1493TPS transactions per second 1494TPS transmission parameters signaling 1495TR task register 1496TR token ring 1497TRL timing recovery loop 1498TRNG true random number generator 1499TS terminal services 1500TS time series 1501TS time stamp 1502TS transport stream 1503TSAN Thread Sanitizer 1504TSC time stamp counter 1505TSD time stamp disable 1506TSDB time series database 1507TSL test, set, lock 1508TSO time sharing option 1509TSO Total Store Ordering 1510TSP Time-Stamp Protocol 1511TSP Tunnel Setup Protocol 1512TSP time synchronization protocol 1513TSP traveling salesman problem 1514TSS task state segment 1515TTL time to live 1516TTL transistor-transistor logic 1517TTM translation table maps 1518TTY teletype 1519TUI {terminal,text-based,textual} user interface 1520TX {transmit out,transmitter} 1521TXG transaction group 1522TZ time zone 1523UAC user {access,account} control 1524UAF use-after-free 1525UART universal asynchronous receiver/transmitter 1526UAT user acceptance testing 1527UB undefined behavior 1528UBSAN Undefined Behavior Sanitizer 1529UC uncacheable 1530UCS uniform-cost search 1531UDMA ultra DMA 1532UDO ultra density optical 1533UDP User Datagram Protocol 1534UEFI unified extensible firmware interface 1535UFS Unix File System 1536UGA universal graphics adapter 1537UI unit interval 1538UI user interface 1539UICC universal integrated circuit card 1540UID unique identifier 1541UID user identifier 1542UL upload 1543UMA uniform memory access 1544UMA upper memory area 1545UMB upper memory block 1546UML unified modeling language 1547UMPC ultra-mobile PC 1548UPNP universal plug and play 1549UPS uninterruptible power supply 1550URI uniform resource identifier 1551URL uniform resource locator 1552URN uniform resource name 1553USART universal synchronous/asynchronous receiver/transmitter 1554USB universal serial bus 1555USWC uncacheable speculative write combining 1556UT unit test 1557UTC coordinated universal time 1558UTP unshielded twisted pair 1559UUCP Unix-to-Unix Copy Protocol 1560UUID universally unique identifier 1561UUOC useless use of cat 1562UUT unit under test 1563UX user experience 1564VA vertical alignment 1565VA virtual address 1566VA volt-ampere 1567VAX virtual address extension 1568VB Visual Basic 1569VCA variable-gain amplifier 1570VCC common collector voltage 1571VCF voltage-controlled filter 1572VCM virtual channel memory 1573VCO voltage-controlled oscillator 1574VCS version control system 1575VESA Video Electronics Standards Association 1576VFO variable-frequency oscillator 1577VFS virtual file system 1578VG volume group 1579VGA Video Graphics Array 1580VHDCI very high density cable interconnect 1581VID {VLAN,voltage level} identifier 1582VIM Vi IMproved 1583VIPT virtually indexed, physically tagged 1584VIVT virtually indexed, virtually tagged 1585VLAN virtual local area network 1586VLIW very long instruction word 1587VLSI very large scale integration 1588VLSM variable length subnet mask 1589VM virtual {machine,memory} 1590VME virtual mode extension 1591VMX vector multimedia extensions 1592VMX virtual machine extensions 1593VOD video on demand 1594VPD vital product data 1595VPN virtual private network 1596VR virtual reality 1597VRAM video random access memory 1598VRF virtual routing and forwarding 1599VRM voltage regulator module 1600VRRP Virtual Router Redundancy Protocol 1601VSTP VLAN Spanning Tree Protocol 1602VTP VLAN Trunking Protocol 1603VXFS Veritas file sytem 1604VXVM Veritas volume manager 1605W watt 1606W3C World Wide Web Consortium 1607WAFL write anywhere file layout 1608WAMP Web Application Messaging Protocol 1609WAN wide area network 1610WAP Wireless Application Protocol 1611WAP wireless access point 1612WDM Windows Driver Model 1613WDDM Windows Display Driver Model 1614WDT watchdog timer 1615WEP Wired Equivalent Privacy 1616WFI wait for interrupt 1617WFQ weighted fair queuing 1618WH write hit 1619WIFI wireless fidelity 1620WLAN wireless local area network 1621WM write miss 1622WMI Windows Management Instrumentation 1623WOL Wake-on-LAN 1624WOM Wake-on-Modem 1625WOR Wake-on-Ring 1626WORM write once read many 1627WP WordPerfect 1628WP word processor 1629WP write protect 1630WPA Wi-Fi Protected Access 1631WPA2 Wi-Fi Protected Access II 1632WPS Wi-Fi Protected Setup 1633WRAM window random access memory 1634WS web services 1635WTC write through caching 1636WWAN wireless wide area network 1637WWW world wide web 1638WYSIAYG what you see is all you get 1639WYSIWYG what you see is what you get 1640XBAR crossbar 1641XDMCP X Display Manager control protocol 1642XER XML encoding rules 1643XGA Extended Graphics Array 1644XHR XMLHttpRequest 1645XIP execute in place 1646XML Extensible Markup Language 1647XNA XNA's not acronymed 1648XNS Xerox network systems 1649XOR exclusive or 1650XP extreme programming 1651XSI X/Open System Interface 1652XSL extensible stylesheet language 1653XSS cross site scripting 1654XT extended technology 1655XTI X/Open transport interface 1656XUL XML user interface language 1657YACC yet another compiler compiler 1658YAML YAML ain't markup language 1659YANG yet another next generation 1660YAWPFAPR you are welcome; please file a problem report 1661YP Yellow Pages 1662YTD year to date 1663ZAP ZFS attribute processor 1664ZBR zone bit recording 1665ZFOD zero-filled on demand 1666ZFS zettabyte file system 1667ZIF zero insertion force 1668ZIFS zero insertion force socket 1669ZIL ZFS intent log 1670ZMA zone multicast address 1671ZOI zero one infinity 1672ZOI zone of influence 1673ZPL ZFS Posix layer 1674ZVOL ZFS Volume 1675