acronyms.comp revision 1.330
1$NetBSD: acronyms.comp,v 1.330 2022/12/08 23:41:22 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABI application binary interface 8ABNF augmented backus-naur form 9ABR available bit rate 10ABRT automatic bug reporting tool 11AC alternating current 12ACI adjacent channel interferer 13ACID atomicity, consistency, isolation, durability 14ACK Amsterdam compiler kit 15ACK acknowledgement 16ACL access control list 17ACL active current loop 18ACL asynchronous connection less 19ACP auxiliary control {process,program} 20ACPI advanced configuration and power interface 21ACS access control set 22ACU automatic calling unit 23ADB Apple desktop bus 24ADC analog [to] digital converter 25ADD acronym driven development 26ADDDC adaptive double DRAM device correction 27ADO active data objects 28ADP automatic data processing 29ADPCM adaptive differential pulse code modulation 30ADS alternate data stream 31ADSL asymmetric digital subscriber line 32ADT abstract data type 33AEAD authenticated encryption with associated data 34AEDC advanced error detection and correction 35AER advanced error reporting 36AES Advanced Encryption Standard 37AFP Apple Filing Protocol 38AFS Andrew File System 39AGC automatic gain control 40AGP accelerated graphics port 41AI analog input 42AI artificial intelligence 43AL access list 44AL active link 45ALE address latch enable 46ALS ambient light sensor 47ALSA advanced Linux sound architecture 48ALU arithmetic and logical unit 49ALUA asymmetric logical unit access 50AM access method 51AM alignment mask 52AM amplitude modulation 53AMD Advanced Micro Devices Inc 54AMDD Agile model-driven development 55AMI alternate mark inversion 56AMP asymmetric multiprocessing 57AMQP advanced message queuing protocol 58AMT active management technology 59AN Arabic number 60ANR application not responding 61ANSI American National Standards Institute 62AO analog output 63AOC add-on card 64AOL Alert-on-LAN 65AOS add or subtract 66AOT ahead of time 67AP access point 68AP application processor 69APFS Apple file system 70API application programming interface 71APEI ACPI platform error interface 72APIC advanced programmable interrupt controller 73APIPA automatic private IP addressing 74APM advanced power management 75APM application performance management 76APU accelerated processing unit 77APT advanced persistent threat 78AQM active queue management 79ARAT always running APIC timer 80ARC adaptive replacement cache 81ARC Advanced RISC Computing 82ARC automatic reference counting 83ARM Advanced RISC Machines 84ARP Address Resolution Protocol 85ARPA Advanced Research Projects Agency 86ARQ automatic repeat request 87ARR address range register 88ARU audio response unit 89AS autonomous system 90ASA Adaptive Security Appliance 91ASAN Address Sanitizer 92ASC advanced smart cache 93ASCII American Standard Code for Information Interchange 94ASD agile software development 95ASE advanced software environment 96ASF alert standard format 97ASIC application-specific integrated circuit 98ASK amplitude shift keying 99ASLR address space layout randomization 100ASN autonomous system number 101ASP active server pages 102ASP auxiliary storage pool 103ASPM active state power management 104ASQ automated software quality 105ASR address space register 106ASR Apple software restore 107AST abstract syntax tree 108AST asynchronous system trap 109AT access time 110AT advanced technology 111ATA advanced technology attachment 112ATAPI advanced technology attachment packet interface 113ATC address translation cache 114ATF ARM trusted firmware 115ATF automated testing framework 116ATM asynchronous transfer mode 117ATX advanced technology extended 118AV anti virus 119AVB audio video bridging 120AVL Adelson-Velsky-Landis 121AVX advanced vector extensions 122AWDL Apple wireless direct link 123BA byte align 124BAL basic assembly language 125BAR base address register 126BBS bulletin board system 127BCC blind carbon copy 128BCD binary coded decimal 129BCH boot console handler 130BCR byte count register 131BCS base configuration space 132BD baud 133BDD binary decision diagram 134BDI bit deinterleave 135BDUF big design up front 136BEDO burst extended data output 137BER basic encoding rules 138BER bit error {rate,ratio} 139BERT boot error record table 140BFD bidirectional forwarding detection 141BFD binary {file,format} descriptor 142BFKL big fscking kernel lock 143BFS breadth-first search 144BFT binary file transfer 145BGA ball grid array 146BGP Border Gateway Protocol 147BGPSEC BGP Security 148BIND Berkeley Internet Name Daemon 149BIOS Basic Input/Output System 150BIOS built-in operating system 151BIST built-in self-test 152BIU bus interface unit 153BKDG BIOS and kernel developer's guide 154BLAS basic linear algebra subprograms 155BLC back light control 156BLE Bluetooth low energy 157BLOB binary large object 158BM bus master 159BMC baseboard management controller 160BMP basic multilingual plane 161BMP bitmap image file 162BMIC bus master interface controller 163BN boundary neutral 164BNF Backus-Naur form 165BO binary output 166BOF beginning of file 167BOM beginning of message 168BOM byte order mark 169BP base pointer 170BP boot processor 171BPB BIOS parameter block 172BPDU bridge protocol data unit 173BPF Berkeley Packet Filter 174BPI bits per inch 175BPM business process modelling 176BPS bits per second 177BPSK binary phase shift keying 178BQS Berkeley quality software 179BRE basic regular expression 180BS backspace 181BS binary sequence 182BSA basic service area 183BSD Berkeley Software Distribution 184BSDP Boot Service Discovery Protocol 185BSF bit scan forward 186BSOD blue screen of death 187BSP binary space partition 188BSP board support package 189BSP bootstrap processor 190BSR bit scan reverse 191BSS basic service set 192BSS block started by symbol 193BSSID basic service set identifier 194BT BitTorrent 195BT Bluetooth 196BT bit test 197BTC bit test [and] complement 198BTM bus transport mechanism 199BTR bit test [and] reset 200BTS bit test [and] set 201BTS bug tracking system 202BW bandwidth 203BWM block-write mode 204BUAG big ugly ASCII graphic 205CA certificate authority 206CACLS change access control lists 207CAD computer-aided design 208CAM computer assisted manufacturing 209CAM conditional access module 210CAM content addressable memory 211CARP Common Address Redundancy Protocol 212CAS column address strobe 213CAS compare and swap 214CAS computer algebra system 215CASE computer aided software engineering 216CAU control access unit 217CAV constant angular velocity 218CBC cipher block chaining 219CBR constant bit rate 220CC carbon copy 221CCC Chaos Computer Club 222CCD charge coupled device 223CCI co-channel interferer 224CCNUMA cache-coherent non-uniform memory access 225CCTL command completion time limit 226CD cache disable 227CD compact disc 228CDDA compact disc digital audio 229CDL compiler description language 230CDMA code division multiple access 231CDN content delivery network 232CDP Cisco Discovery Protocol 233CDRAM cache dynamic random access memory 234CER canonical encoding rules 235CE customer edge 236CF compact flash 237CFB cipher feedback 238CFG context-free grammar 239CFG control-flow graph 240CFI control-flow integrity sanitizer 241CG control gate 242CGA Color Graphics Adapter 243CGI common gateway interface 244CGN Carrier-Grade NAT 245CHAP Challenge-Handshake Authentication Protocol 246CHFS chip file system 247CHS cylinder/head/sector 248CI continuous integration 249CI {common,component} interface 250CIA confidentiality, integrity, availability 251CIDR Classless Inter-Domain Routing 252CIF common intermediate format 253CIFS Common Internet File System 254CIL common intermediate language 255CIR carrier-to-interference ratio 256CIS contact image sensor 257CISC complex instruction set {computer,computing} 258CJK Chinese, Japanese, [and] Korean 259CLF common log format 260CLI command line interface 261CLI common language infrastructure 262CLR common language runtime 263CLS common language specification 264CLTT closed loop thermal throttling 265CLUT color look-up table 266CLV constant linear velocity 267CM configuration management 268CMA concert multithread architecture 269CMC chassis management controller 270CMC corrected machine check 271CMS {configuration,content,course} management system 272CMI control {management,method} interface 273CMOS complementary metal-oxide-semiconductor 274CMP chip multi-processing 275CMS content management system 276CMYK cyan magenta yellow black 277CN {common,canonical} name 278CNC computer numerical control 279CNR carrier-to-noise ratio 280COA change of authority 281COF current operating frequency 282COFDM coded orthogonal frequency division multiplexing 283COFF common object file format 284COM component object model 285COM computer on module 286COMA cache-only memory architecture 287CORBA common object request broker architecture 288COS class of service 289COW copy-on-write 290CP continuous pilot 291CPA chosen-plaintext attack 292CPB core performance boost 293CPC central processor complex 294CPC cpu performance counters 295CPE common phase error 296CPE common platform enumeration 297CPER common platform error record 298CPG clock pulse generator 299CPI cycles per instruction 300CPL current privilege level 301CPLD complex programmable logic device 302CPP C preprocessor 303CPS characters per second 304CPS continuation-passing style 305CPT command pass through 306CPU central processing unit 307CR carriage return 308CRC cyclic redundancy check 309CRL carrier recovery loop 310CRLF carriage return line feed 311CSPM cloud security posture management 312CSU C start up 313CRT cathode ray tube 314CRTP curiously recurring template pattern 315CRUD create, read, update, and delete 316CS cable select 317CS chip select 318CS code segment 319CS computer science 320CSDL {common,conceptual} schema definition language 321CSI channel state information 322CSI common system interface 323CSMA carrier sense multiple access 324CSMA/CA carrier sense multiple access with collision avoidance 325CSMA/CD carrier sense multiple access with collision detection 326CSP communicating sequential processes 327CSP content security policy 328CSP constrain satisfaction problems 329CSP cryptographic service provider 330CSR control [and] status registers 331CSRG Computer Systems Research Group 332CSS cascading style sheets 333CST common spanning tree 334CSV comma-separated values 335CTF compact c type format 336CTM close to metal 337CTR counter [mode] 338CTS clear to send 339CTS common type system 340CUA common user access 341CUT coordinated universal time 342CV control voltage 343CVE common vulnerabilities and exposures 344CVS Concurrent Versions System 345DA destination address 346DAA distributed application architecture 347DAAP digital audio access protocol 348DAB digital audio broadcasting 349DAC digital [to] analog converter 350DAC discretionary access control 351DAD duplicate address detection 352DANE DNS-based Authentication of Named Entities 353DAO disk at once 354DAP Directory Access Protocol 355DAT digital audio tape 356DAT dynamic acceleration technology 357DB database 358DBA database administrator 359DBA dynamic bandwidth allocation 360DBB data bus buffer 361DBC design by contract 362DBL dynamic buffer limiting 363DBMS database management system 364DBS database server 365DC data center 366DC direct current 367DCC Direct Client-to-Client 368DCC direct cable connect 369DCD data carrier detect 370DCE data control equipment 371DCE distributed computing environment 372DCIM data center infrastructure management 373DCIM digital camera images 374DCL Digital Command Language 375DCOM distributed component object model 376DCOP Desktop COmmunication Protocol 377DCS data collection systems 378DCT discrete cosine transform 379DCU data cache unit 380DDC display data channel 381DDE dynamic data exchange 382DDI device drivers interface 383DDK device driver kit 384DDL data description language 385DDR double data rate 386DDS direct digital sound 387DDWG Digital Display Working Group 388DE debugging extensions 389DE desktop environment 390DEA data encryption algorithm 391DEC Digital Equipment Corporation 392DEK data encryption key 393DEP data execution prevention 394DER distinguished encoding rules 395DES Data Encryption Standard 396DF don't fragment 397DFA deterministic finite automaton 398DFC data flow control 399DFS depth first search 400DFS distributed file system 401DFSAN Data Flow Sanitizer 402DFT diagnostic function test 403DFT discrete Fourier transform 404DGL data generation language 405DGEMM double precision general matrix multiply 406DH Diffie-Hellman 407DHCP Dynamic Host Configuration Protocol 408DIA dedicated Internet access 409DIB device independent bitmap 410DIFS distributed inter-frame space 411DIMM dual inline memory module 412DIRT design in real time 413DKI driver/kernel interface 414DL diode logic 415DL discrete logarithm 416DL download 417DLCI data link connection identifier 418DLE data link escape 419DLL dynamic link library 420DLNA digital living network alliance 421DLP discrete logarithm problem 422DMA direct memory access 423DMI desktop management interface 424DMS document management system 425DMT discrete multitone modulation 426DMU data management layer 427DNARD Digital network appliance reference design 428DND drag and drop 429DNLC directory name lookup cache 430DNS Domain Name System 431DNSSEC DNS Security Extensions 432DOE distributed object environment 433DOF data over fibre 434DOM document object model 435DOS denial of service 436DOS disk operating system 437DP DisplayPort 438DPC deferred procedure call 439DPCM differential pulse code modulation 440DPD dead peer detection 441DPI deep packet inspection 442DPI dots per inch 443DPL descriptor privilege level 444DPS Display PostScript 445DPST display power savings technology 446DRAAS disaster recovery as a service 447DRAM dynamic random access memory 448DRBG deterministic random bit generator 449DRI direct rendering infrastructure 450DRM digital rights management 451DRM direct rendering manager 452DRRS display refresh rate switching 453DS debug store 454DS differentiated services 455DS9000 DeathStation 9000 456DS9K DeathStation 9000 457DSA digital signature algorithm 458DSAP destination service access point 459DSB double-sideband modulation 460DSCP differentiated services code point 461DSDT differentiated system descriptor table 462DSF device special file 463DSL dataset and snapshot layer 464DSL digital subscriber line 465DSL domain specific language 466DSLAM digital subscriber line access multiplexer 467DSN delivery status notification 468DSO dynamic shared object 469DSP digital signal processor 470DSSS direct sequence spread spectrum 471DTB device tree blob 472DTC device tree compiler 473DTD document type definition 474DTE data terminal equipment 475DTE dumb terminal emulator 476DTL diode-transistor logic 477DTLS datagram transport layer security 478DTS device tree source 479DTS digital thermal sensor 480DUT device under test 481DVB digital video broadcasting 482DVCS distributed version control system 483DVD digital versatile disc 484DVFS dynamic voltage and frequency scaling 485DVI device independent 486DVI Digital Visual Interface 487DVR digital video recorder 488E-XER extended XML encoding rules 489EABI embedded-application binary interface 490EAI Email Address Internationalization 491EAI Enterprise Application Integration 492EAP Extensible Authentication Protocol 493EAPOL EAP over Lan 494EAV entity-attribute-value model 495EAV ethernet audio/video bridging 496EBCDIC Extended Binary Coded Decimal Interchange Code 497EBDA Extended BIOS Data Area 498EBNF extended backus-naur form 499EBR extended boot record 500EC elliptic curve 501ECC elliptic curve cryptography 502ECC error correction code 503ECDH elliptic curve Diffie-Hellman 504ECDL elliptic curve discrete logarithm 505ECDLP elliptic curve discrete logarithm problem 506ECDSA elliptic curve digital signature algorithm 507ECL emitter-coupled logic 508ECN explicit congestion notification 509ECP enhanced capability port 510ECS enhanced chip set 511ECS extended configuration space 512EDAC error detection and correction 513EDAT enhanced dynamic acceleration technology 514EdDSA Edwards curve digital signature algorithm 515EDGE explicit data graph execution 516EDID extended display identification data 517EDO extended data out 518EDS electronical data sheet 519EDSAC electronic delay storage automatic calculator 520EDVAC electronic discrete variable automatic computer 521EEE energy efficient ethernet 522EEE embrace, extend, extinguish 523EEPROM electrically erasable programmable read only memory 524EFI extensible firmware interface 525EFL emitter follower logic 526EFM eight to fourteen modulation 527EFS extent file system 528EGA Enhanced Graphics Adapter 529EGP exterior gateway protocol 530EH extension header 531EIDE enhanced IDE 532EISA extended industry standard architecture 533EINJ error injection table 534ELF executable and linking format 535ELS entry level system 536EMI electro-magnetic interference 537EMP electro-magnetic pulse 538EMR electro-magnetic radiation 539EMACS Editor MACroS 540ENIAC electronic numerical integrator and computer 541EOF end of file 542EOI end of interrupt 543EOIS end of interactive support 544EOL end of life 545EOL end of line 546EOT end of transmission 547EPIC explicitly parallel instruction computing 548EPP enhanced parallel port 549EPRML extended partial response, maximum likelihood 550EPROM erasable programmable read only memory 551EPT extended page tables 552ERC error recovery control 553ERD emergency recovery disk 554ERD entity relationship diagram 555ERE extended regular expression 556ERST error record serialization table 557ESAN Efficiency Sanitizer 558ESB enterprise service bus 559ESDI enhanced small disk interface 560ESDRAM enhanced synchronous dynamic random access memory 561ESI enclosure services interface 562ESS electronic switching system 563ESS extended service set 564ESSID extended service set identifier 565EST enhanced speedstep 566ETL extract, transform, load 567EU execution unit 568EULA end user license agreement 569FAT file allocation table 570FBRAM frame buffer random access memory 571FCIF full common intermediate format 572FCL fiber channel loop 573FCS frame check sequence 574FDC floppy disk controller 575FDD floppy disk drive 576FDDI fiber distributed data interface 577FDE full disk encryption 578FDT flattened device tree 579FEA finite element analysis 580FEC forward error correction 581FET field-effect transistor 582FF finite field 583FF form feed 584FFDH finite-field Diffie-Hellman 585FFH functional fixed hardware 586FFI foreign function interface 587FFM focus follows mouse 588FFS Fast File System 589FFS find first set 590FFT fast Fourier transform 591FG floating gate 592FHRP first hop redundancy protocol 593FHSS frequency hop spread spectrum 594FID frequency identifier 595FIFO first in, first out 596FILO first in, last out 597FIPS Federal Information Processing Standards 598FIR fast infrared 599FLOPS floating [point] operations per second 600FLOSS free/libre/open source software 601FM frequency modulation 602FMR false match rate 603FOSS free/open source software 604FPGA field programmable gate array 605FPM fast page mode 606FPR floating point register 607FPU floating point unit 608FQDN fully qualified domain name 609FRR false rejection rate 610FRU field replaceable unit 611FS file system 612FSB front side bus 613FSCK file system check 614FSF Free Software Foundation 615FSK frequency shift keying 616FSM finite-state machine 617FTA fault tree analysis 618FTL flash translation layer 619FTP File Transfer Protocol 620FTPS File Transfer Protocol Secure 621FTTH fiber to the home 622FUS fast user switching 623FWH firmware hub 624FWS folding white space 625GAL generic array logic 626GARP generic attribute registration protocol 627GAS generic address structure 628GC garbage collector 629GCM Galois counter mode 630GCR group-coded recording 631GDI Graphics Device Interface 632GDT global descriptor table 633GECOS general comprehensive operating supervisor 634GEM graphics environment manager 635GEM graphics execution manager 636GEMM general matrix multiply 637GENA general event notification architecture 638GHC Glasgow Haskell compiler 639GHES generic hardware error source 640GIC generic interrupt controller 641GID group identifier 642GIF graphics interchange format 643GLBP gateway load balancing protocol 644GMCH graphics and memory controller hub 645GNU GNU's Not Unix 646GOP graphics output protocol 647GOT global offset table 648GPE general purpose event 649GPF general protection fault 650GPG GNU Privacy Guard 651GPL [GNU] General Public License 652GPR general purpose register 653GPS generalized processor sharing 654GPT GUID partition table 655GPU graphics processing unit 656GR golden ratio 657GRE generic routing encapsulation 658GRO generic receive offload 659GSI global system interrupt 660GSO generic send offload 661GUI graphical user interface 662GUID globally unique identifier 663GVFS git virtual file system 664HA high availability 665HAL hardware abstraction layer 666HAT hashed array tree 667HATEOAS hypermedia as the engine of application state 668HBA host bus adapter 669HCF halt and catch fire 670HCI host controller interface 671HCI human-computer interaction 672HCL hardware compatibility list 673HDCP High-bandwidth Digital Content Protection 674HDD hard disk drive 675HDL hardware description language 676HDMI High-Definition Multimedia Interface 677HDTV high-definition television 678HECI host embedded controller interface 679HEST hardware error source table 680HEVC high efficiency video coding 681HF high frequency 682HFM highest frequency mode 683HFS hierarchical file system 684HID human interface device 685HKDF HMAC-based key derivation function 686HKP HTTP Keyserver Protocol 687HLL high-level language 688HMA high memory area 689HMI human-machine interface 690HOOD hierarchical object oriented design 691HOTP HMAC-based one time password 692HP Hewlett-Packard 693HPC high performance computing 694HPD hot plug detection 695HPET high precision event timer 696HSM hardware security module 697HSM hierarchical storage management 698HSRP hot standby router protocol 699HT hyper-threading 700HTC hardware thermal control 701HTCC high temperature co-fired ceramic 702HTML HyperText Markup Language 703HTT hyper-threading technology 704HTTP Hypertext Transfer Protocol 705HTTPS Hypertext Transfer Protocol Secure 706HVM hardware virtual machine 707HVDS High-Voltage Differential Signaling 708HWASAN Hardware-assisted Address Sanitizer 709HZ Hertz 710I2O intelligent input/output 711IA information assurance 712IAAS infrastructure as a service 713IANA Internet Assigned Numbers Authority 714IBC iterated block cipher 715IBM International Business Machines 716IBPI international blinking pattern interpretation 717IBS instruction based sampling 718IBSS independent basic service set 719IC integrated circuit 720ICA independent computer architecture 721ICACLS integrity control access control lists 722ICB Internet Citizen's Band 723ICE in-circuit emulator 724ICE internal compiler error 725ICH I/O controller hub 726ICMP Internet Control Message Protocol 727ICT information and communications technology 728ICW initialization command word 729IDA Intel dynamic acceleration 730IDCMP Intuition direct communication message port 731IDCT inverse discrete cosine transform 732IDE integrated development environment 733IDE integrated drive electronics 734IDPS intrusion detection [and] prevention system 735IDRP inter-domain routing protocol 736IDS intrusion detection system 737IDT interrupt descriptor table 738IE Internet Explorer 739IEC International Electrotechnical Commission 740IEEE Institute of Electrical and Electronics Engineers 741IESG Internet Engineering Steering Group 742IETF Internet Engineering Task Force 743IF intermediate frequency 744IFCM isochronous flow control mode 745IFF Interchange File Format 746IFS internal field separator 747IGD Internet gateway device 748IGMP Internet Group Management Protocol 749IGP interior gateway protocol 750IHV independent hardware vendor 751IKE Internet key exchange 752ILM internal loopback mode 753ILOM integrated lights-out management 754ILP instruction level parallelism 755IM instant messaging 756IME input method editor 757IMAP Internet Message Access Protocol 758IMC integrated memory controller 759IMCR interrupt mode configuration register 760IMR interrupt mask register 761IMS information management system 762IMSI international mobile subscriber identity 763INCITS InterNational Committee for Information Technology Standards 764INODE index node 765IO input/output 766IOCTL input/output control 767IOM input/output managers 768IOMMU input/output memory management unit 769IOT Internet of Things 770IP Internet Protocol 771IP intellectual property 772IPC instructions per cycle 773IPC interprocess communication 774IPCF interprocess communication facility 775IPE integrated programming environment 776IPI intelligent peripheral interface 777IPI interprocessor interrupt 778IPL Initial Program Load 779IPL Interrupt Priority Level 780IPMB Intelligent Platform Management Bus 781IPMI Intelligent Platform Management Interface 782IPNG Internet Protocol, Next Generation 783IPS in-plane switching 784IPS intrusion prevention system 785IPSEC Internet Protocol Security 786IRC Internet Relay Chat 787IRDA infrared data association 788IRDP ICMP Router Discovery Protocol 789IRQ interrupt request 790IRQL interrupt request level 791IRR interrupt request register 792IRTF Internet Research Task Force 793IS information system 794ISA industry standard architecture 795ISA instruction set architecture 796ISE instant secure erase 797ISDN integrated services digital network 798ISI inter-symbol interference 799ISL initial system load 800ISM industrial, scientific, [and] medical 801ISMS information system management system 802ISN initial serial number 803ISO International Standards Organization 804ISOC Internet Society 805ISP Internet service provider 806ISR in-service register 807ISR interrupt service routine 808IST internal spanning tree 809IST interrupt stack table 810ISV independent software vendor 811IT information technology 812ITB Intel Turbo Boost 813ITIL information technology infrastructure library 814ITP in-target probe 815ITSM IT service management 816IV initialization vector 817IVT interrupt vector table 818JBOD just a bunch of disks 819JCL Job Control Language 820JFET junction [gate] field-effect transistor 821JIT just in time 822JPEG Joint Photographic Experts Group 823JRE Java Runtime Environment 824JSON JavaScript Object Notation 825JTAG joint test action group 826KASLR kernel address space layout randomization 827KB keyboard 828KB kilobyte 829KBD keyboard 830KBD kilobaud 831KCS keyboard controller style 832KLOC thousand lines of code 833KMS kernel-mode setting 834KPI kernel programming interface 835KVA kernel virtual address 836KVM kernel virtual machine 837KVM kernel virtual memory 838KVM keyboard, video, [and] mouse 839L2CAP link layer control and adaptation protocol 840LAG link aggregation group 841LAMP Linux Apache MySQL {Perl,PHP,Python} 842LAN local area network 843LAPIC local advanced programmable interrupt controller 844LAR load access rights 845LBA logical block addressing 846LBNF labeled backus-naur form 847LBS location-based service 848LCD liquid crystal display 849LCP link control protocol 850LDA local delivery agent 851LDAP Lightweight Directory Access Protocol 852LDR light-dependent resistor 853LDT local descriptor table 854LE logical extent 855LED light emitting diode 856LELL low energy link layer 857LER label edge router 858LF line feed 859LF low frequency 860LFM lowest frequency mode 861LFN long file names 862LFO low-frequency oscillation 863LFS log-structured file system 864LFU least frequently used 865LHP loop heat pipe 866LIF logical interchange format 867LIFO last in, first out 868LILO LInux LOader 869LILO last in, last out 870LINT local interrupt 871LIR local Internet registry 872LISP LISt Processor 873LISP Locator/ID Separation Protocol 874LKM {Linux,loadable} kernel module 875LKML Linux kernel mailing list 876LL load linked 877LL/SC load linked/store conditional 878LLC logical link control 879LLD low-level design 880LLDD low-level design document 881LLDP link layer discovery protocol 882LLF low level format 883LLMNR link-local multicast name resolution 884LLVM Low Level Virtual Machine 885LM long mode 886LMCE local machine check exception 887LMI local management interface 888LMM link management mode 889LMP link management protocol 890LNO loop nest optimization 891LOC lines of code 892LOM lights-out management 893LPE Linux performance events 894LPC low pin count 895LPS local positioning system 896LRC longitudinal redundancy check 897LRM left-to-right mark 898LRO left-to-right override 899LRU least recently used 900LS link state 901LSAN Leak Sanitizer 902LSB Linux standards base 903LSB least significant {bit,byte} 904LSI large scale integration 905LSL load segment limit 906LSM log structured merge 907LSN Large Scale NAT 908LSN log sequence number 909LSO large send offload 910LSR label switch router 911LTCC low temperature co-fired ceramic 912LTO linear tape-open 913LTO link time optimization 914LTR left to right 915LTR load task register 916LTR letter(-sized paper) 917LTS long term support 918LUA Lua Uppercase Accident 919LUN logical unit number 920LV logical volume 921LVM logical volume management 922LVT local vector table 923LVDS Low-Voltage Differential Signaling 924LWP light-weight process 925LZSS Lempel Ziv Storer Szymanski 926LZW Lempel Ziv Welch 927MAB MAC authentication bypass 928MAC mandatory access control 929MAC {media,medium} access control 930MAC message authentication {check,code} 931MADT multiple APIC descriptor table 932MAMR microwave-assisted magnetic recording 933MB megabyte 934MBA multi-boot agent 935MBR master boot record 936MBS megabits per second 937MC memory controller 938MCA machine check architecture 939MCA MicroChannel architecture 940MCC multiversion concurrency control 941MCE machine check exception 942MCGA Multi-Color Graphics Array 943MCH memory controller hub 944MCLAG multi-chassis link aggregation group 945MCM multi-chip module 946MCQ memory controlled queue 947MD machine-dependent 948MD MiniDisc 949MD-SAL model-driven service abstraction layer 950MDA mail delivery agent 951MDA Monochrome Display Adapter 952MDC Management Data Clock 953MDI Medium Dependent Interface 954MDI-X Medium Dependent Interface Crossover 955MDIO Management Data Input/Output 956MDMX MIPS Digital Media eXtension 957MDRAM multibank dynamic random access memory 958MESI modified, exclusive, shared, invalid 959MFC merge from current 960MFC Microsoft Foundation Classes 961MFM modified frequency modulation 962MFU most frequently used 963MGCP media gateway control protocol 964MHU message handling unit 965MI machine-independent 966MI machine interface 967MIB management information base 968MIC message integrity {check,code} 969MID mobile Internet device 970MIDI musical instrument digital interface 971MIF management information format 972MII media independent interface 973MIM man in the middle 974MIMD multiple instruction, multiple data 975MIME Multipurpose Internet Mail Extensions 976MIMO multiple input multiple output 977MIPS million instructions per second 978MIPS Microprocessor without Interlocked Pipeline Stages 979MISD multiple instruction, single data 980MIT Massachusetts Institute of Technology 981MITM man in the middle 982ML machine language 983ML machine learning 984ML mailing list 985ML markup language 986ML maximum likelihood 987MLAG multi-chassis link aggregation group 988MLC multi-level cell 989MLD multicast listener discovery 990MLHP micro loop heat pipe 991MMF multi-mode fiber 992MMIC monolithic microwave integrated circuit 993MMIO memory mapped input/output 994MMORPG massive multiplayer online role playing game 995MMRP multiple MAC registration protocol 996MMU memory management unit 997MMX matrix math extension 998MMX multimedia extension 999MMX multiple math extension 1000MO magneto-optical 1001MOESI modified, owned, exclusive, shared, invalid 1002MOF maximum operating frequency 1003MOSFET metal-oxide-semiconductor field-effect transistor 1004MOSI modified, owned, shared, invalid 1005MP multi-platform 1006MP multiplayer 1007MP {multiprocessing,multiprocessor} 1008MPEG moving picture experts group 1009MPI message passing interface 1010MPLS Multiprotocol Label Switching 1011MPP massively parallel processor 1012MPS memory pool system 1013MPS multiprocessor specification 1014MQTT Message Queuing Telemetry Transport 1015MR modem ready 1016MRO method resolution order 1017MRP multiple registration protocol 1018MRU most recently used 1019MS Microsoft 1020MSAN Memory Sanitizer 1021MSB most significant {bit,byte} 1022MSC message sequence chart 1023MSE mean square error 1024MSF minutes seconds frames 1025MSI message signaled interrupt 1026MSI modified, shared, invalid 1027MSR {machine state,model-specific} register 1028MSS maximum segment size 1029MSTP Multiple Spanning Tree Protocol 1030MT machine translation 1031MTA mail transfer agent 1032MTBF mean time between failures 1033MTP media transfer protocol 1034MTRR memory type range register 1035MTTF mean time to failure 1036MTU maximum transmission unit 1037MUA mail user agent 1038MUD multi-user domain 1039MVCC multiversion concurrency control 1040MVR multicast VLAN registration 1041MVRP multiple VLAN registration protocol 1042MWE module width encoding 1043MX mail exchange 1044NACK negative acknowledgement 1045NAK negative acknowledgement 1046NAN neighbor awareness networking 1047NAN not a number 1048NAPT Network Address Port Translation 1049NAS network attached storage 1050NAT network address translation 1051NAV network allocation vector 1052NC numerical control 1053NC-SI network controller sideband interface 1054NCO numerically-controlled oscillator 1055NCP Network Control Protocol 1056NCSI network connectivity status indicator 1057NCQ native command queuing 1058ND neighbor discovery 1059NDFA nondeterministic finite automaton 1060NDIS network driver interface specification 1061NE numeric error 1062NEWS Network extensible Window System 1063NFA nondeterministic finite automaton 1064NFC near-field communication 1065NFCI no functional change intended 1066NFS network file system 1067NFV network function virtualization 1068NIA next instruction address 1069NIC network information center 1070NIC network interface card 1071NIDS network intrusion detection system 1072NIP network interface protocol 1073NIPS network intrusion prevention system 1074NIS network information service 1075NIST National Institute of Standards and Technology 1076NLS native language support 1077NMI non-maskable interrupt 1078NNTP Network News Transfer Protocol 1079NMR nonce-misuse resistance 1080NOC network operations center 1081NOP no operation 1082NOS network operating system 1083NP nondeterministic polynomial time 1084NRND not recommended for new designs 1085NRZ non-return to zero 1086NSA nation-state adversary 1087NSA no such agency 1088NSA National Security Agency 1089NTM non-deterministic Turing machine 1090NTP Network Time Protocol 1091NUMA non-uniform memory access 1092NURBS non-uniform rational basis spline 1093NVMM NetBSD Virtual Machine Monitor 1094NVMM non-volatile main memory 1095NVRAM non-volatile random access memory 1096NW not write-through 1097NX no execute 1098OAEP optimal asymmetric encryption padding 1099OAM operations, administration, and {management,maintenance} 1100OBO off by one 1101OBOE off by one error 1102OCL object constraint language 1103OCR optical character recognition 1104ODE offline device environment 1105ODI open data-link interface 1106ODM object data manager 1107ODCM on-demand clock modulation 1108ODMR on-demand mail relay 1109ODT on-die termination 1110OEM original equipment manufacturer 1111OFB output feedback 1112OFDM orthogonal frequency division multiplexing 1113OFET organic field-effect transistor 1114OLAP online analytical processing 1115OLE object linking and embedding 1116OLTP online transaction processing 1117ONFI open nand flash interface 1118OO OpenOffice 1119OO object oriented 1120OOB out of band 1121OOE out of order execution 1122OOM out of memory 1123OOO OpenOffice.org 1124OOP object oriented programming 1125OOPS object oriented programming systems 1126OOSE object oriented software engineering 1127OPM operations per minute 1128OPS operations per second 1129OQL Object Query Language 1130ORB object request broker 1131ORM object-relational mapping 1132OS operating system 1133OSD object-based storage device 1134OSD open source definition 1135OSF open software foundation 1136OSI Open Source Initiative 1137OSI open systems interconnection 1138OSPF open shortest path first 1139OSPM OS power management 1140OSS open sound system 1141OSS open source software 1142OSVW operating system visible workarounds 1143OTP one time password 1144OTP open telecom platform 1145OU organizational unit 1146OUI organizationally unique identifier 1147OWASP Open Web Application Security Project 1148OWL Web Ontology Language 1149P2P PCI to PCI 1150P2P peer to peer 1151PA phase accumulator 1152PA physical address 1153PAAS platform as a service 1154PAC phase-amplitude converter 1155PAE physical address extension 1156PAGP port aggregation protocol 1157PAL phase alternating line 1158PAL programmable array logic 1159PAM pluggable authentication modules 1160PAM pulse amplitude modulation 1161PAP password authentication protocol 1162PAT page attribute table 1163PAT port address translation 1164PATA parallel ATA 1165PAX portable archive exchange 1166PBE pending break encoding 1167PBE programming by example 1168PBR partition boot record 1169PBX private branch exchange 1170PC personal computer 1171PC program counter 1172PCB printed circuit board 1173PCB process control block 1174PCB Protocol Control Block 1175PCBC propagating cipher block chaining 1176PCC Portable C Compiler 1177PCD page-level cache disable 1178PCE path computation element 1179PCE performance-monitor counter enable 1180PCEP Path Computation Element Protocol 1181PCH platform controller hub 1182PCI peripheral component interconnect 1183PCM phase change memory 1184PCM pulse code modulation 1185PCMCIA Personal Computer Memory Card International Association 1186PCP Port Control Protocol 1187PD public domain 1188PDA personal digital assistant 1189PDA pushdown automaton 1190PDAG propositional directed acyclic graph 1191PDB power distribution board 1192PDF portable document format 1193PDM pulse-duration modulation 1194PDN pull-down network 1195PDP page {descriptor,directory} page 1196PDS product data sheet 1197PDU protocol data unit 1198PE protection enable 1199PE provider edge 1200PEAP Protected EAP 1201PECI platform environment control interface 1202PEP protocol extension protocol 1203PER packed encoding rules 1204PFS perfect forward secrecy 1205PGAS partitioned global address space 1206PGE page global enable 1207PGP Pretty Good Privacy 1208PHB PCI host bridge 1209PHP PHP: Hypertext Preprocessor 1210PIC performance instrumentation counters 1211PIC position independent code 1212PIC programmable interrupt controller 1213PICNIC problem in chair, not in computer 1214PID process id 1215PIE position independent executable 1216PIL Priority Interrupt Level 1217PIM personal information manager 1218PIM platform-independent model 1219PIO programmed input/output 1220PIPT physically indexed, physically tagged 1221PIQ prefetch input queue 1222PIT programmable interrupt timer 1223PIV personal identity verification 1224PIX Private Internet eXchange 1225PKCS public-key cryptography standards 1226PKI public key infrastructure 1227PLC programmable logic controller 1228PLD programmable logic device 1229PLL phase locked loop 1230PLRU pseudo LRU 1231PLT procedure linkage table 1232PLTM package level thermal management 1233PM power management 1234PM {phase,pulse} modulation 1235PMC performance monitoring counters 1236PME power management event 1237PMEG page map entry group 1238PMI performance monitoring infrastructure 1239PMI platform management interrupt 1240PMIC power management integrated circuit 1241PMIO port-mapped input/output 1242PMT photo-multiplier tube 1243PMU performance monitoring units 1244PMU power management unit 1245PNG portable network graphics 1246PNP plug and play 1247POE power over ethernet 1248POF probability of failure 1249POP Post Office Protocol 1250POP power on password 1251POR plan of record 1252POSIX Portable Operating System Interface [for Unix] 1253POST power on self test 1254POTS plain old telephone system 1255POWER Performance Optimization With Enhanced RISC 1256POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1257PP pair programming 1258PPB PCI [to] PCI bridge 1259PPC PowerPC 1260PPC Power Performance Computing 1261PPI pixels per inch 1262PPM pages per minute 1263PPP Point-to-Point Protocol 1264PPPOA Point-to-Point Protocol over ATM 1265PPPOE Point-to-Point Protocol over Ethernet 1266PPR processor programming reference 1267PPT powerpoint 1268PPT punched paper tape 1269PPU physics processing unit 1270PRAM Parameter RAM 1271PRBS pseudorandom bit sequence 1272PRG pseudorandom generator 1273PRF pseudorandom function [family] 1274PRML partial response, maximum likelihood 1275PRN pseudorandom {noise,number} 1276PRNG pseudorandom number generator 1277PROM programmable read only memory 1278PRP pseudorandom permutation 1279PRU Programmable Realtime Unit 1280PS PostScript 1281PSD power spectral density 1282PSE page size extensions 1283PSK phase shift keying 1284PSK pre-shared key 1285PSTN public switched telephone network 1286PSW program status word 1287PTE page table entry 1288PTLA pseudo top level aggregator 1289PTP page table page 1290PTV perceived target value 1291PU processing unit 1292PUC personal unblocking code 1293PUN physical unit number 1294PV physical volume 1295PVC permanent virtual circuit 1296PVG physical volume group 1297PVI protected-mode virtual interrupt 1298PVRST Per-VLAN rapid spanning tree 1299PVST Per-VLAN Spanning Tree 1300PWM pulse width modulation 1301PXE preboot execution environment 1302QA quality assurance 1303QAM quadrature amplitude modulation 1304QAM quality assurance management 1305QBE query by example 1306QC quality control 1307QDI quasi delay insensitive 1308QCIF quarter common intermediate format 1309QOI quality of implementation 1310QOI quick order interface 1311QOS quality of service 1312QVL qualified vendor list 1313R/O read only 1314R/W read/write 1315RA receiver address 1316RA remote assistance 1317RA resource affinity 1318RA router advertisement 1319RAD rapid application development 1320RADIUS remote authentication dial-in user service 1321RAID redundant array of {independent,inexpensive} disks 1322RAM random access memory 1323RAS reliability, availability and serviceability 1324RAS remote access service 1325RAS restartable atomic sequence 1326RAS row address strobe 1327RBF radial basis function 1328RBNF routing backus-naur form 1329RBT red-black tree 1330RC release candidate 1331RC remote control 1332RC run commands 1333RCS Revision Control System 1334RCS revision control system 1335RCU read, copy, update 1336RDB Rigid Disk Block 1337RDBMS relational database management system 1338RDF Resource Description Framework 1339RDM relational data model 1340RDMA remote direct memory access 1341RDP remote desktop protocol 1342RDRAM Rambus DRAM 1343RE regular expression 1344REPL read, evaluate, print, loop 1345REST representational state transfer 1346RF radio frequency 1347RFB remote frame buffer 1348RFI radio frequency interference 1349RFO request for ownership 1350RFU reserved for future use 1351RGB red green blue 1352RGBA red green blue alpha 1353RGMII reduced gigabit media independent interface 1354RH read hit 1355RHEL Red Hat Enterprise Linux 1356RHL Red Hat Linux 1357RIB routing information base 1358RIFF Resource Interchange File Format 1359RIP Raster Image Processor 1360RIP Routing Information Protocol 1361RIR regional Internet registry 1362RISC reduced instruction set {computer,computing} 1363RKM ROM Kernel Manual 1364RLE run length encoding 1365RLL run length limited 1366RLO right-to-left override 1367RM read miss 1368RMCP Remote Management Control Protocol 1369RMI remote method invocation 1370RMO Relaxed Memory Ordering 1371RMPM rapid memory power management 1372RMS root mean square 1373RMW read, modify, write 1374RNG random number generator 1375ROM read only memory 1376ROP return-oriented programming 1377RPC remote procedure call 1378RPG Report Program Generator 1379RPKI resource PKI 1380RPL requested privilege level 1381RPM revolutions per minute 1382RPN reverse Polish notation 1383RPVST Rapid Per-VLAN Spanning Tree 1384RR random replacement 1385RR round robin 1386RS relay station 1387RSA Rivest, Shamir, [and] Adleman 1388RSIP Realm Specific IP 1389RSN Robust Secure Network 1390RSS really simple syndication 1391RSS Receive Side Scaling 1392RSS residual sum of squares 1393RSTP Rapid Spanning Tree Protocol 1394RT real time 1395RTC real time clock 1396RTC real time computing 1397RTF rich text format 1398RTL register transfer language 1399RTL resistor-transistor logic 1400RTL right to left 1401RTOS real time operating system 1402RTP Real-time Transport Protocol 1403RTS request to send 1404RTT round trip time 1405RUP rational unified process 1406RW Rabin-Williams 1407RWM read-write memory 1408RX {receive,receiver} 1409S/PDIF Sony/Philips Digital Interface Format 1410SA security advisory 1411SA security association 1412SA source address 1413SA structured analysis 1414SAAS software as a service 1415SABRE Semi-automated business research environment 1416SACD super audio compact disc 1417SAD security association database 1418SAF-TE SCSI accessed fault-tolerant enclosure 1419SAGE Semi-automated ground environment 1420SAL {service,system} abstraction layer 1421SAM serial access memory 1422SAM sum addressed memory 1423SAML security assertion markup language 1424SAN storage area network 1425SAP service access point 1426SAPIC streamlined advanced programmable interrupt controller 1427SASD structured analysis, structured design 1428SASI Shugart Associates System Interface 1429SASL simple authentication [and] security layer 1430SATA serial advanced technology attachment 1431SAX simple API for XML 1432SB sound blaster 1433SBSA server base system architecture 1434SBU standard build unit 1435SC store conditional 1436SCA source code analyzer 1437SCADA supervisory control and data acquisition 1438SCC single chip cloud 1439SCC source code control 1440SCCP skinny call control protocol 1441SCCS Source Code Control System 1442SCI scalable coherent interface 1443SCI system control interrupt 1444SCIM smart common input method 1445SCM software configuration management 1446SCM source code management 1447SCM storage-class memory 1448SCO synchronous connection orientated 1449SCP secure copy 1450SCP system control processor 1451SCPI system control and power interface 1452SCSI Small Computer System Interface 1453SCTP Stream Control Transmission Protocol 1454SDDC software defined data center 1455SDEI software delegated exception interface 1456SDI symbol deinterleave 1457SDK software development kit 1458SDL Simple Declarative Language 1459SDL Simple Direct-media Layer 1460SDLC {software,system,systems} development life cycle 1461SDN software defined networking 1462SDP Session Description Protocol 1463SDR software defined radio 1464SDRAM synchronous dynamic random access memory 1465SDS software defined storage 1466SDT syntax-directed translation 1467SEA synchronous external abort 1468SEGV segmentation violation 1469SED self-encrypting drive 1470SED stream editor 1471SEMB serial ATA enclosure management bridge 1472SEO search engine optimization 1473SES SCSI enclosure services 1474SFC sequential function chart 1475SFI simple firmware interface 1476SFI software fault isolation 1477SFTP SSH File Transfer Protocol 1478SFTP Serial File Transfer Protocol 1479SFTP Simple File Transfer Protocol 1480SGI Silicon Graphics, Inc 1481SGI software generated interrupt 1482SGMII serial gigabit media independent interface 1483SGPIO serial general purpose input/output 1484SGRAM synchronous graphics random access memory 1485SHA secure hash algorithm 1486SICP structure and interpretation of computer programs 1487SIDH supersingular isogeny Diffie-Hellman 1488SIEM security information and event management 1489SIF source input format 1490SIFS short inter-frame space 1491SIM subscriber identity module 1492SIMD single instruction, multiple data 1493SIMM single inline memory module 1494SIP Session Initiation Protocol 1495SIR signal-to-interference ratio 1496SIR slow infrared 1497SISD single instruction, single data 1498SIV synthetic intialization vector 1499SLAAC stateless address auto-configuration 1500SLC single-level cell 1501SLDRAM synchronous-link dynamic random access memory 1502SLED single large expensive disk 1503SLI scalable link interface 1504SLI scan-line interleave 1505SLIC system license internal code 1506SLOC source lines of code 1507SLRU segmented LRU 1508SMA smart memory access 1509SMAF system management action field 1510SMAP Simple Mail Access Protocol 1511SMAP supervisor mode access prevention 1512SMART self-monitoring analysis and reporting technology 1513SMB Server Message Block 1514SMB system management bus 1515SMBIOS System Management BIOS 1516SMC system management controller 1517SMD storage module device 1518SMEP supervisor mode execution protection 1519SMF single mode fiber 1520SMI structure of management information 1521SMI system management interrupt 1522SMM system management mode 1523SMP serial management protocol 1524SMP symmetric multiprocessing 1525SMR shingled magnetic recording 1526SMR state machine replication 1527SMT simultaneous multithreading 1528SMTP Simple Mail Transfer Protocol 1529SMU system management unit 1530SNA systems network architecture 1531SNAP Sub-Network Access Protocol 1532SNIA Storage Networking Industry Association 1533SNMP Simple Network Management Protocol 1534SNR signal-to-noise ratio 1535SOA service oriented architecture 1536SOAP Simple Object Access Protocol 1537SOC system on chip 1538SOF start of frame 1539SOH start of header 1540SOHO small office/home office 1541SOL serial over LAN 1542SOM system on module 1543SP service pack 1544SP stack pointer 1545SPA storage pool allocator 1546SPAN switched port analyzer 1547SPARC scalable processor architecture 1548SPARQL SPARQL Protocol and RDF Query Language 1549SPD security policy database 1550SPD serial presence detect 1551SPDIF Sony/Philips digital interface format 1552SPI serial peripheral interface 1553SPI stateful packet inspection 1554SPL system interrupt priority level 1555SPL spinlock 1556SPMD single process, multiple data 1557SPR special purpose register 1558SPT sectors per track 1559SQA software quality assurance 1560SQCIF sub quarter common intermediate format 1561SQL Structured Query Language 1562SRAM static random access memory 1563SRC sample rate conversion 1564SRP SCSI RDMA protocol 1565SRR shaped round robin 1566SRTP Secure Real-time Transport Protocol 1567SS self-snoop 1568SS stack segment 1569SSA static single assignment 1570SSAP source service access point 1571SSB single-sideband modulation 1572SSC spread spectrum clock 1573SSD solid state drive 1574SSE streaming SIMD extensions 1575SSFDC solid state floppy disc card 1576SSH secure shell 1577SSI server side includes 1578SSID service set identifier 1579SSTP secure socket tunneling protocol 1580SSL secure sockets layer 1581SSP stack smashing protection 1582STC software thermal control 1583STD state transition diagram 1584STM software transactional memory 1585STOMP Streaming Text Oriented Messaging Protocol 1586STP Spanning Tree Protocol 1587STP shielded twisted pair 1588STRG spanning tree root guard 1589SUN Stanford University Network 1590SUS Single Unix Specification 1591SUT system under test 1592SVC switched virtual circuit 1593SVG scalable vector graphics 1594SVGA Super Video Graphics Array 1595SVI {switch,switched} virtual interface 1596SVM secure virtual machine 1597SVM support vector machine 1598SVR System V Release 1599SVS Separate Virtual Space 1600SWF Shockwave Flash 1601SWIG simplified wrapper [and] interface generator 1602SYR symbol timing recovery 1603TA test assertion 1604TA transmitter address 1605TACACS terminal access controller access-control system 1606TAI international atomic time 1607TAO track at once 1608TAOCP The Art of Computer Programming 1609TAP Test Anything Protocol 1610TAS test and set 1611TB terabyte 1612TBNF transitional backus-naur form 1613TCB trace capture buffer 1614TCB trusted computing base 1615TCC thermal control circuit 1616TCL tool command language 1617TCP Transmission Control Protocol 1618TCQ tagged command queueing 1619TDC time [to] digital converter 1620TDD test-driven development 1621TDD time division duplex 1622TDM time division multiplexing 1623TDMA time division multiple access 1624TDOA time difference of arrival 1625TDP thermal design {point,power} 1626TDR time-domain reflectometry 1627TECO Text Editor and Corrector 1628TFT thin film transistor 1629TFTP Trivial File Transfer Protocol 1630TIAS try it and see 1631TIFF tagged image file format 1632TITS try it to see 1633TK temporal key 1634TKIP Temporal Key Integrity Protocol 1635TLA top level aggregator 1636TLB translation lookaside buffer 1637TLD top level domain 1638TLER time-limited error recovery 1639TLI transport layer interface 1640TLS thread local storage 1641TLS transport layer security 1642TM Turing machine 1643TM thermal monitor 1644TMG transmogrifier 1645TMDS transition minimized differential signaling 1646TMO timeout 1647TOD time of day 1648TOE TCP offload engine 1649TOFU trust on first use 1650TOS terms of service 1651TOS trusted operating system 1652TOS type of service 1653TOTP time-based one time password 1654TP transaction processing 1655TPI tracks per inch 1656TPM transactions per minute 1657TPM trusted platform module 1658TPR task priority register 1659TPS transactions per second 1660TPS transmission parameters signaling 1661TR task register 1662TR token ring 1663TRL timing recovery loop 1664TRNG true random number generator 1665TS terminal services 1666TS time series 1667TS time stamp 1668TS transport stream 1669TSAN Thread Sanitizer 1670TSC time stamp counter 1671TSD time stamp disable 1672TSDB time series database 1673TSL test, set, lock 1674TSO time sharing option 1675TSO TCP segmentation offload 1676TSO Total Store Ordering 1677TSP Time-Stamp Protocol 1678TSP Tunnel Setup Protocol 1679TSP time synchronization protocol 1680TSP traveling salesman problem 1681TSS task state segment 1682TSV tab-separated values 1683TTL time to live 1684TTL transistor-transistor logic 1685TTM translation table maps 1686TTY teletype 1687TUI {terminal,text-based,textual} user interface 1688TX {transmit out,transmitter} 1689TXG transaction group 1690TZ time zone 1691UAC user {access,account} control 1692UAF use-after-free 1693UART universal asynchronous receiver/transmitter 1694UAT user acceptance testing 1695UB undefined behavior 1696UBSAN Undefined Behavior Sanitizer 1697UC uncacheable 1698UCS uniform-cost search 1699UCS unified computing system 1700UCS universal coded character set 1701UDI uniform driver interface 1702UDMA ultra DMA 1703UDO ultra density optical 1704UDP User Datagram Protocol 1705UEFI unified extensible firmware interface 1706UFO UDP fragmentation offload 1707UFS Unix File System 1708UGA universal graphics adapter 1709UI unit interval 1710UI user interface 1711UICC universal integrated circuit card 1712UID unique identifier 1713UID user identifier 1714UL upload 1715UMA uniform memory access 1716UMA upper memory area 1717UMB upper memory block 1718UML unified modeling language 1719UMPC ultra-mobile PC 1720UPNP universal plug and play 1721UPS uninterruptible power supply 1722URI uniform resource identifier 1723URL uniform resource locator 1724URN uniform resource name 1725USART universal synchronous/asynchronous receiver/transmitter 1726USB universal serial bus 1727USWC uncacheable speculative write combining 1728UT unit test 1729UTC coordinated universal time 1730UTF unicode transformation formats 1731UTP unshielded twisted pair 1732UTS UNIX time-sharing 1733UUCP Unix-to-Unix Copy Protocol 1734UUID universally unique identifier 1735UUOC useless use of cat 1736UUT unit under test 1737UX user experience 1738VA vertical alignment 1739VA virtual address 1740VA volt-ampere 1741VAX virtual address extension 1742VB Visual Basic 1743VBR volume boot record 1744VCA variable-gain amplifier 1745VCC common collector voltage 1746VCCP virtual chassis control protocol 1747VCF voltage-controlled filter 1748VCM virtual channel memory 1749VCO voltage-controlled oscillator 1750VCP virtual chassis port 1751VCS version control system 1752VDPAU Video Decode and Presentation API for Unix 1753VES virtual execution system 1754VESA Video Electronics Standards Association 1755VFO variable-frequency oscillator 1756VFS virtual file system 1757VG volume group 1758VGA Video Graphics Array 1759VHDCI very high density cable interconnect 1760VID {VLAN,voltage level} identifier 1761VIM Vi IMproved 1762VIPT virtually indexed, physically tagged 1763VIVT virtually indexed, virtually tagged 1764VLAN virtual local area network 1765VLD variable-length decoding 1766VLIW very long instruction word 1767VLSI very large scale integration 1768VLSM variable length subnet mask 1769VM virtual {machine,memory} 1770VME virtual mode extension 1771VMX vector multimedia extensions 1772VMX virtual machine extensions 1773VNC virtual network computing 1774VOD video on demand 1775VPD vital product data 1776VPN virtual private network 1777VPWS virtual private wire service 1778VR virtual reality 1779VRAM video random access memory 1780VRF virtual routing and forwarding 1781VRM voltage regulator module 1782VROC Virtual RAID On CPU 1783VRRP Virtual Router Redundancy Protocol 1784VSTP VLAN Spanning Tree Protocol 1785VTP VLAN Trunking Protocol 1786VXFS Veritas file system 1787VXVM Veritas volume manager 1788W watt 1789W3C World Wide Web Consortium 1790WAFL write anywhere file layout 1791WAMP Web Application Messaging Protocol 1792WAN wide area network 1793WAP Wireless Application Protocol 1794WAP wireless access point 1795WDM Windows Driver Model 1796WDDM Windows Display Driver Model 1797WDT watchdog timer 1798WEP Wired Equivalent Privacy 1799WFI wait for interrupt 1800WFQ weighted fair queuing 1801WH write hit 1802WHEA Windows hardware error architecture 1803WIFI wireless fidelity 1804WLAN wireless local area network 1805WM write miss 1806WMF Windows meta file 1807WMI Windows Management Instrumentation 1808WOL Wake-on-LAN 1809WOM Wake-on-Modem 1810WOR Wake-on-Ring 1811WORM write once read many 1812WP WordPerfect 1813WP word processor 1814WP write protect 1815WPA Wi-Fi Protected Access 1816WPA2 Wi-Fi Protected Access II 1817WPAD web proxy auto-discovery protocol 1818WPS Wi-Fi Protected Setup 1819WRAM window random access memory 1820WS web services 1821WTC write through caching 1822WTD weighted tail drop 1823WWAN wireless wide area network 1824WWW world wide web 1825WYSIAYG what you see is all you get 1826WYSIWYG what you see is what you get 1827XBAR crossbar 1828XDMCP X Display Manager control protocol 1829XER XML encoding rules 1830XGA Extended Graphics Array 1831XHR XMLHttpRequest 1832XIP execute in place 1833XML Extensible Markup Language 1834XNA XNA's not acronymed 1835XNS Xerox network systems 1836XOR exclusive or 1837XP extreme programming 1838XSI X/Open System Interface 1839XSL extensible stylesheet language 1840XSLT extensible stylesheet language transformations 1841XSS cross site scripting 1842XT extended technology 1843XTACACS extended terminal access controller access-control system 1844XTI X/Open transport interface 1845XUL XML user interface language 1846YACC yet another compiler compiler 1847YAML YAML ain't markup language 1848YANG yet another next generation 1849YAWPFAPR you are welcome; please file a problem report 1850YP Yellow Pages 1851YTD year to date 1852ZAP ZFS attribute processor 1853ZBR zone bit recording 1854ZFOD zero-filled on demand 1855ZFS zettabyte file system 1856ZIF zero insertion force 1857ZIFS zero insertion force socket 1858ZIL ZFS intent log 1859ZMA zone multicast address 1860ZOI zero one infinity 1861ZOI zone of influence 1862ZPL ZFS Posix layer 1863ZVOL ZFS Volume 1864