acronyms.comp revision 1.336
1$NetBSD: acronyms.comp,v 1.336 2023/02/28 15:01:53 fcambus Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALS ambient light sensor 48ALSA advanced Linux sound architecture 49ALU arithmetic and logical unit 50ALUA asymmetric logical unit access 51AM access method 52AM alignment mask 53AM amplitude modulation 54AMD Advanced Micro Devices Inc 55AMDD Agile model-driven development 56AMI alternate mark inversion 57AMP asymmetric multiprocessing 58AMQP advanced message queuing protocol 59AMT active management technology 60AN Arabic number 61ANR application not responding 62ANSI American National Standards Institute 63AO analog output 64AOC add-on card 65AOL Alert-on-LAN 66AOS add or subtract 67AOT ahead of time 68AP access point 69AP application processor 70APFS Apple file system 71API application programming interface 72APEI ACPI platform error interface 73APIC advanced programmable interrupt controller 74APIPA automatic private IP addressing 75APM advanced power management 76APM application performance management 77APU accelerated processing unit 78APT advanced persistent threat 79AQM active queue management 80ARAT always running APIC timer 81ARC adaptive replacement cache 82ARC Advanced RISC Computing 83ARC automatic reference counting 84ARM Advanced RISC Machines 85ARP Address Resolution Protocol 86ARPA Advanced Research Projects Agency 87ARQ automatic repeat request 88ARR address range register 89ARU audio response unit 90AS autonomous system 91ASA Adaptive Security Appliance 92ASAN Address Sanitizer 93ASC advanced smart cache 94ASCII American Standard Code for Information Interchange 95ASD agile software development 96ASE advanced software environment 97ASF alert standard format 98ASIC application-specific integrated circuit 99ASK amplitude shift keying 100ASLR address space layout randomization 101ASN autonomous system number 102ASP active server pages 103ASP auxiliary storage pool 104ASPM active state power management 105ASQ automated software quality 106ASR address space register 107ASR Apple software restore 108AST abstract syntax tree 109AST asynchronous system trap 110AT access time 111AT advanced technology 112ATA advanced technology attachment 113ATAPI advanced technology attachment packet interface 114ATC address translation cache 115ATF ARM trusted firmware 116ATF automated testing framework 117ATM asynchronous transfer mode 118ATX advanced technology extended 119AV anti virus 120AVB audio video bridging 121AVL Adelson-Velsky-Landis 122AVX advanced vector extensions 123AWDL Apple wireless direct link 124BA byte align 125BAL basic assembly language 126BAR base address register 127BBS bulletin board system 128BCC blind carbon copy 129BCD binary coded decimal 130BCH boot console handler 131BCR byte count register 132BCS base configuration space 133BD baud 134BDD binary decision diagram 135BDI bit deinterleave 136BDUF big design up front 137BEDO burst extended data output 138BER basic encoding rules 139BER bit error {rate,ratio} 140BERT boot error record table 141BFD bidirectional forwarding detection 142BFD binary {file,format} descriptor 143BFKL big fscking kernel lock 144BFS breadth-first search 145BFT binary file transfer 146BGA ball grid array 147BGP Border Gateway Protocol 148BGPSEC BGP Security 149BIND Berkeley Internet Name Daemon 150BIOS Basic Input/Output System 151BIOS built-in operating system 152BIST built-in self-test 153BIU bus interface unit 154BKDG BIOS and kernel developer's guide 155BLAS basic linear algebra subprograms 156BLC back light control 157BLE Bluetooth low energy 158BLOB binary large object 159BM bus master 160BMC baseboard management controller 161BMP basic multilingual plane 162BMP bitmap image file 163BMIC bus master interface controller 164BN boundary neutral 165BNF Backus-Naur form 166BO binary output 167BOF beginning of file 168BOM beginning of message 169BOM byte order mark 170BP base pointer 171BP boot processor 172BPB BIOS parameter block 173BPDU bridge protocol data unit 174BPF Berkeley Packet Filter 175BPI bits per inch 176BPM business process modelling 177BPS bits per second 178BPSK binary phase shift keying 179BQS Berkeley quality software 180BRE basic regular expression 181BS backspace 182BS binary sequence 183BSA basic service area 184BSD Berkeley Software Distribution 185BSDP Boot Service Discovery Protocol 186BSF bit scan forward 187BSOD blue screen of death 188BSP binary space partition 189BSP board support package 190BSP bootstrap processor 191BSR bit scan reverse 192BSS basic service set 193BSS block started by symbol 194BSSID basic service set identifier 195BT BitTorrent 196BT Bluetooth 197BT bit test 198BTC bit test [and] complement 199BTM bus transport mechanism 200BTR bit test [and] reset 201BTS bit test [and] set 202BTS bug tracking system 203BW bandwidth 204BWM block-write mode 205BUAG big ugly ASCII graphic 206CA certificate authority 207CACLS change access control lists 208CAD computer-aided design 209CAM computer assisted manufacturing 210CAM conditional access module 211CAM content addressable memory 212CARP Common Address Redundancy Protocol 213CAS column address strobe 214CAS compare and swap 215CAS computer algebra system 216CASE computer aided software engineering 217CAU control access unit 218CAV constant angular velocity 219CBC cipher block chaining 220CBR constant bit rate 221CC carbon copy 222CCC Chaos Computer Club 223CCD charge coupled device 224CCI co-channel interferer 225CCNUMA cache-coherent non-uniform memory access 226CCTL command completion time limit 227CD cache disable 228CD compact disc 229CDDA compact disc digital audio 230CDL compiler description language 231CDMA code division multiple access 232CDN content delivery network 233CDP Cisco Discovery Protocol 234CDRAM cache dynamic random access memory 235CER canonical encoding rules 236CE customer edge 237CF compact flash 238CFB cipher feedback 239CFG context-free grammar 240CFG control-flow graph 241CFI control-flow integrity 242CG control gate 243CGA Color Graphics Adapter 244CGI common gateway interface 245CGN Carrier-Grade NAT 246CHAP Challenge-Handshake Authentication Protocol 247CHFS chip file system 248CHS cylinder/head/sector 249CI continuous integration 250CI {common,component} interface 251CIA confidentiality, integrity, availability 252CIDR Classless Inter-Domain Routing 253CIF common intermediate format 254CIFS Common Internet File System 255CIL common intermediate language 256CIR carrier-to-interference ratio 257CIS contact image sensor 258CISC complex instruction set {computer,computing} 259CJK Chinese, Japanese, [and] Korean 260CLF common log format 261CLI command line interface 262CLI common language infrastructure 263CLR common language runtime 264CLS common language specification 265CLTT closed loop thermal throttling 266CLUT color look-up table 267CLV constant linear velocity 268CM configuration management 269CMA concert multithread architecture 270CMC chassis management controller 271CMC corrected machine check 272CMS {configuration,content,course} management system 273CMI control {management,method} interface 274CMOS complementary metal-oxide-semiconductor 275CMP chip multi-processing 276CMS content management system 277CMYK cyan magenta yellow black 278CN {common,canonical} name 279CNC computer numerical control 280CNR carrier-to-noise ratio 281COA change of authority 282COF current operating frequency 283COFDM coded orthogonal frequency division multiplexing 284COFF common object file format 285COM component object model 286COM computer on module 287COMA cache-only memory architecture 288CORBA common object request broker architecture 289COS class of service 290COW copy-on-write 291CP continuous pilot 292CPA chosen-plaintext attack 293CPB core performance boost 294CPC central processor complex 295CPC cpu performance counters 296CPE common phase error 297CPE common platform enumeration 298CPER common platform error record 299CPG clock pulse generator 300CPI cycles per instruction 301CPL current privilege level 302CPLD complex programmable logic device 303CPP C preprocessor 304CPS characters per second 305CPS continuation-passing style 306CPT command pass through 307CPU central processing unit 308CR carriage return 309CRC cyclic redundancy check 310CRL carrier recovery loop 311CRLF carriage return line feed 312CSPM cloud security posture management 313CSU C start up 314CRT cathode ray tube 315CRTP curiously recurring template pattern 316CRUD create, read, update, and delete 317CS cable select 318CS chip select 319CS code segment 320CS computer science 321CSDL {common,conceptual} schema definition language 322CSI channel state information 323CSI common system interface 324CSMA carrier sense multiple access 325CSMA/CA carrier sense multiple access with collision avoidance 326CSMA/CD carrier sense multiple access with collision detection 327CSP communicating sequential processes 328CSP content security policy 329CSP constrain satisfaction problems 330CSP cryptographic service provider 331CSR control [and] status registers 332CSRG Computer Systems Research Group 333CSS cascading style sheets 334CST common spanning tree 335CSV comma-separated values 336CTF compact c type format 337CTM close to metal 338CTR counter [mode] 339CTS clear to send 340CTS common type system 341CUA common user access 342CUT coordinated universal time 343CV control voltage 344CVE common vulnerabilities and exposures 345CVS Concurrent Versions System 346DA destination address 347DAA distributed application architecture 348DAAP digital audio access protocol 349DAB digital audio broadcasting 350DAC digital [to] analog converter 351DAC discretionary access control 352DAD duplicate address detection 353DANE DNS-based Authentication of Named Entities 354DAO disk at once 355DAP Directory Access Protocol 356DAT digital audio tape 357DAT dynamic acceleration technology 358DB database 359DBA database administrator 360DBA dynamic bandwidth allocation 361DBB data bus buffer 362DBC design by contract 363DBL dynamic buffer limiting 364DBMS database management system 365DBS database server 366DC data center 367DC direct current 368DCC Direct Client-to-Client 369DCC direct cable connect 370DCD data carrier detect 371DCE data control equipment 372DCE distributed computing environment 373DCIM data center infrastructure management 374DCIM digital camera images 375DCL Digital Command Language 376DCOM distributed component object model 377DCOP Desktop COmmunication Protocol 378DCS data collection systems 379DCT discrete cosine transform 380DCU data cache unit 381DDC display data channel 382DDE dynamic data exchange 383DDI device drivers interface 384DDK device driver kit 385DDL data description language 386DDR double data rate 387DDS direct digital sound 388DDWG Digital Display Working Group 389DE debugging extensions 390DE desktop environment 391DEA data encryption algorithm 392DEC Digital Equipment Corporation 393DEK data encryption key 394DEP data execution prevention 395DER distinguished encoding rules 396DES Data Encryption Standard 397DF don't fragment 398DFA deterministic finite automaton 399DFC data flow control 400DFS depth first search 401DFS distributed file system 402DFSAN Data Flow Sanitizer 403DFT diagnostic function test 404DFT discrete Fourier transform 405DGL data generation language 406DGEMM double precision general matrix multiply 407DH Diffie-Hellman 408DHCP Dynamic Host Configuration Protocol 409DIA dedicated Internet access 410DIB device independent bitmap 411DIFS distributed inter-frame space 412DIMM dual inline memory module 413DIRT design in real time 414DKI driver/kernel interface 415DL diode logic 416DL discrete logarithm 417DL download 418DLCI data link connection identifier 419DLE data link escape 420DLL dynamic link library 421DLNA digital living network alliance 422DLP discrete logarithm problem 423DMA direct memory access 424DMI desktop management interface 425DMS document management system 426DMT discrete multitone modulation 427DMU data management layer 428DNARD Digital network appliance reference design 429DND drag and drop 430DNLC directory name lookup cache 431DNS Domain Name System 432DNSSEC DNS Security Extensions 433DOE distributed object environment 434DOF data over fibre 435DOM document object model 436DOS denial of service 437DOS disk operating system 438DP DisplayPort 439DPC deferred procedure call 440DPCM differential pulse code modulation 441DPD dead peer detection 442DPI deep packet inspection 443DPI dots per inch 444DPL descriptor privilege level 445DPS Display PostScript 446DPST display power savings technology 447DRAAS disaster recovery as a service 448DRAM dynamic random access memory 449DRBG deterministic random bit generator 450DRI direct rendering infrastructure 451DRM digital rights management 452DRM direct rendering manager 453DRRS display refresh rate switching 454DS debug store 455DS differentiated services 456DS9000 DeathStation 9000 457DS9K DeathStation 9000 458DSA digital signature algorithm 459DSAP destination service access point 460DSB double-sideband modulation 461DSCP differentiated services code point 462DSDT differentiated system descriptor table 463DSF device special file 464DSL dataset and snapshot layer 465DSL digital subscriber line 466DSL domain specific language 467DSLAM digital subscriber line access multiplexer 468DSN delivery status notification 469DSO dynamic shared object 470DSP digital signal processor 471DSSS direct sequence spread spectrum 472DTB device tree blob 473DTC device tree compiler 474DTD document type definition 475DTE data terminal equipment 476DTE dumb terminal emulator 477DTL diode-transistor logic 478DTLS datagram transport layer security 479DTS device tree source 480DTS digital thermal sensor 481DUT device under test 482DVB digital video broadcasting 483DVCS distributed version control system 484DVD digital versatile disc 485DVFS dynamic voltage and frequency scaling 486DVI device independent 487DVI Digital Visual Interface 488DVR digital video recorder 489E-XER extended XML encoding rules 490EABI embedded-application binary interface 491EAI Email Address Internationalization 492EAI Enterprise Application Integration 493EAP Extensible Authentication Protocol 494EAPOL EAP over Lan 495EAV entity-attribute-value model 496EAV ethernet audio/video bridging 497EBCDIC Extended Binary Coded Decimal Interchange Code 498EBDA Extended BIOS Data Area 499EBNF extended backus-naur form 500EBR extended boot record 501EC elliptic curve 502ECC elliptic curve cryptography 503ECC error correction code 504ECDH elliptic curve Diffie-Hellman 505ECDL elliptic curve discrete logarithm 506ECDLP elliptic curve discrete logarithm problem 507ECDSA elliptic curve digital signature algorithm 508ECL emitter-coupled logic 509ECN explicit congestion notification 510ECP enhanced capability port 511ECS enhanced chip set 512ECS extended configuration space 513EDAC error detection and correction 514EDAT enhanced dynamic acceleration technology 515EdDSA Edwards curve digital signature algorithm 516EDGE explicit data graph execution 517EDID extended display identification data 518EDO extended data out 519EDS electronical data sheet 520EDSAC electronic delay storage automatic calculator 521EDVAC electronic discrete variable automatic computer 522EEE energy efficient ethernet 523EEE embrace, extend, extinguish 524EEPROM electrically erasable programmable read only memory 525EFI extensible firmware interface 526EFL emitter follower logic 527EFM eight to fourteen modulation 528EFS extent file system 529EGA Enhanced Graphics Adapter 530EGP exterior gateway protocol 531EH extension header 532EIDE enhanced IDE 533EISA extended industry standard architecture 534EINJ error injection table 535ELF executable and linking format 536ELS entry level system 537EMI electro-magnetic interference 538EMP electro-magnetic pulse 539EMR electro-magnetic radiation 540EMACS Editor MACroS 541ENIAC electronic numerical integrator and computer 542EOF end of file 543EOI end of interrupt 544EOIS end of interactive support 545EOL end of life 546EOL end of line 547EOT end of transmission 548EPIC explicitly parallel instruction computing 549EPP enhanced parallel port 550EPRML extended partial response, maximum likelihood 551EPROM erasable programmable read only memory 552EPT extended page tables 553ERC error recovery control 554ERD emergency recovery disk 555ERD entity relationship diagram 556ERE extended regular expression 557ERST error record serialization table 558ESAN Efficiency Sanitizer 559ESB enterprise service bus 560ESDI enhanced small disk interface 561ESDRAM enhanced synchronous dynamic random access memory 562ESI enclosure services interface 563ESS electronic switching system 564ESS extended service set 565ESSID extended service set identifier 566EST enhanced speedstep 567ETL extract, transform, load 568EU execution unit 569EULA end user license agreement 570FAT file allocation table 571FBRAM frame buffer random access memory 572FCIF full common intermediate format 573FCL fiber channel loop 574FCS frame check sequence 575FDC floppy disk controller 576FDD floppy disk drive 577FDDI fiber distributed data interface 578FDE full disk encryption 579FDT flattened device tree 580FEA finite element analysis 581FEC forward error correction 582FET field-effect transistor 583FF finite field 584FF form feed 585FFDH finite-field Diffie-Hellman 586FFH functional fixed hardware 587FFI foreign function interface 588FFM focus follows mouse 589FFS Fast File System 590FFS find first set 591FFT fast Fourier transform 592FG floating gate 593FHRP first hop redundancy protocol 594FHSS frequency hop spread spectrum 595FID frequency identifier 596FIFO first in, first out 597FILO first in, last out 598FIPS Federal Information Processing Standards 599FIR fast infrared 600FLOPS floating [point] operations per second 601FLOSS free/libre/open source software 602FM frequency modulation 603FMR false match rate 604FOSS free/open source software 605FPGA field programmable gate array 606FPM fast page mode 607FPR floating point register 608FPU floating point unit 609FQDN fully qualified domain name 610FRR false rejection rate 611FRU field replaceable unit 612FS file system 613FSB front side bus 614FSCK file system check 615FSF Free Software Foundation 616FSK frequency shift keying 617FSM finite-state machine 618FTA fault tree analysis 619FTL flash translation layer 620FTP File Transfer Protocol 621FTPS File Transfer Protocol Secure 622FTTH fiber to the home 623FUS fast user switching 624FWH firmware hub 625FWS folding white space 626GAL generic array logic 627GARP generic attribute registration protocol 628GAS generic address structure 629GC garbage collector 630GCC GNU Compiler Collection 631GCM Galois counter mode 632GCR group-coded recording 633GDI Graphics Device Interface 634GDT global descriptor table 635GECOS general comprehensive operating supervisor 636GEM graphics environment manager 637GEM graphics execution manager 638GEMM general matrix multiply 639GENA general event notification architecture 640GHC Glasgow Haskell compiler 641GHES generic hardware error source 642GIC generic interrupt controller 643GID group identifier 644GIF graphics interchange format 645GLBP gateway load balancing protocol 646GMCH graphics and memory controller hub 647GNU GNU's Not Unix 648GOP graphics output protocol 649GOT global offset table 650GPE general purpose event 651GPF general protection fault 652GPG GNU Privacy Guard 653GPL [GNU] General Public License 654GPR general purpose register 655GPS generalized processor sharing 656GPT GUID partition table 657GPU graphics processing unit 658GR golden ratio 659GRE generic routing encapsulation 660GRO generic receive offload 661GSI global system interrupt 662GSO generic send offload 663GUI graphical user interface 664GUID globally unique identifier 665GUS Gravis UltraSound 666GVFS git virtual file system 667HA high availability 668HAL hardware abstraction layer 669HAT hashed array tree 670HATEOAS hypermedia as the engine of application state 671HBA host bus adapter 672HCF halt and catch fire 673HCI host controller interface 674HCI human-computer interaction 675HCL hardware compatibility list 676HDCP High-bandwidth Digital Content Protection 677HDD hard disk drive 678HDL hardware description language 679HDMI High-Definition Multimedia Interface 680HDTV high-definition television 681HECI host embedded controller interface 682HEST hardware error source table 683HEVC high efficiency video coding 684HF high frequency 685HFM highest frequency mode 686HFS hierarchical file system 687HID human interface device 688HKDF HMAC-based key derivation function 689HKP HTTP Keyserver Protocol 690HLL high-level language 691HMA high memory area 692HMI human-machine interface 693HOOD hierarchical object oriented design 694HOTP HMAC-based one time password 695HP Hewlett-Packard 696HPC high performance computing 697HPD hot plug detection 698HPET high precision event timer 699HSM hardware security module 700HSM hierarchical storage management 701HSRP hot standby router protocol 702HT hyper-threading 703HTC hardware thermal control 704HTCC high temperature co-fired ceramic 705HTML HyperText Markup Language 706HTT hyper-threading technology 707HTTP Hypertext Transfer Protocol 708HTTPS Hypertext Transfer Protocol Secure 709HVM hardware virtual machine 710HVDS High-Voltage Differential Signaling 711HWASAN Hardware-assisted Address Sanitizer 712HZ Hertz 713I2O intelligent input/output 714IA information assurance 715IAAS infrastructure as a service 716IANA Internet Assigned Numbers Authority 717IBC iterated block cipher 718IBM International Business Machines 719IBPI international blinking pattern interpretation 720IBS instruction based sampling 721IBSS independent basic service set 722IC integrated circuit 723ICA independent computer architecture 724ICACLS integrity control access control lists 725ICB Internet Citizen's Band 726ICE in-circuit emulator 727ICE internal compiler error 728ICH I/O controller hub 729ICMP Internet Control Message Protocol 730ICT information and communications technology 731ICW initialization command word 732IDA Intel dynamic acceleration 733IDCMP Intuition direct communication message port 734IDCT inverse discrete cosine transform 735IDE integrated development environment 736IDE integrated drive electronics 737IDPS intrusion detection [and] prevention system 738IDRP inter-domain routing protocol 739IDS intrusion detection system 740IDT interrupt descriptor table 741IE Internet Explorer 742IEC International Electrotechnical Commission 743IEEE Institute of Electrical and Electronics Engineers 744IESG Internet Engineering Steering Group 745IETF Internet Engineering Task Force 746IF intermediate frequency 747IFCM isochronous flow control mode 748IFF Interchange File Format 749IFS internal field separator 750IGD Internet gateway device 751IGMP Internet Group Management Protocol 752IGP interior gateway protocol 753IHV independent hardware vendor 754IKE Internet key exchange 755ILM internal loopback mode 756ILOM integrated lights-out management 757ILP instruction level parallelism 758IM instant messaging 759IME input method editor 760IMAP Internet Message Access Protocol 761IMC integrated memory controller 762IMCR interrupt mode configuration register 763IMR interrupt mask register 764IMS information management system 765IMSI international mobile subscriber identity 766INCITS InterNational Committee for Information Technology Standards 767INODE index node 768IO input/output 769IOCTL input/output control 770IOM input/output managers 771IOMMU input/output memory management unit 772IOT Internet of Things 773IP Internet Protocol 774IP intellectual property 775IPC instructions per cycle 776IPC interprocess communication 777IPCF interprocess communication facility 778IPE integrated programming environment 779IPI intelligent peripheral interface 780IPI interprocessor interrupt 781IPL Initial Program Load 782IPL Interrupt Priority Level 783IPMB Intelligent Platform Management Bus 784IPMI Intelligent Platform Management Interface 785IPNG Internet Protocol, Next Generation 786IPS in-plane switching 787IPS intrusion prevention system 788IPSEC Internet Protocol Security 789IRC Internet Relay Chat 790IRDA infrared data association 791IRDP ICMP Router Discovery Protocol 792IRQ interrupt request 793IRQL interrupt request level 794IRR interrupt request register 795IRTF Internet Research Task Force 796IS information system 797ISA industry standard architecture 798ISA instruction set architecture 799ISE instant secure erase 800ISDN integrated services digital network 801ISI inter-symbol interference 802ISL initial system load 803ISM industrial, scientific, [and] medical 804ISMS information system management system 805ISN initial serial number 806ISO International Standards Organization 807ISOC Internet Society 808ISP Internet service provider 809ISR in-service register 810ISR interrupt service routine 811IST internal spanning tree 812IST interrupt stack table 813ISV independent software vendor 814IT information technology 815ITB Intel Turbo Boost 816ITIL information technology infrastructure library 817ITP in-target probe 818ITSM IT service management 819IV initialization vector 820IVT interrupt vector table 821JBOD just a bunch of disks 822JCL Job Control Language 823JFET junction [gate] field-effect transistor 824JIT just in time 825JPEG Joint Photographic Experts Group 826JRE Java Runtime Environment 827JSON JavaScript Object Notation 828JTAG joint test action group 829KASLR kernel address space layout randomization 830KB keyboard 831KB kilobyte 832KBD keyboard 833KBD kilobaud 834KCS keyboard controller style 835KLOC thousand lines of code 836KMS kernel-mode setting 837KPI kernel programming interface 838KVA kernel virtual address 839KVM kernel virtual machine 840KVM kernel virtual memory 841KVM keyboard, video, [and] mouse 842L2CAP link layer control and adaptation protocol 843LAG link aggregation group 844LAMP Linux Apache MySQL {Perl,PHP,Python} 845LAN local area network 846LAPIC local advanced programmable interrupt controller 847LAR load access rights 848LBA logical block addressing 849LBNF labeled backus-naur form 850LBS location-based service 851LCD liquid crystal display 852LCP link control protocol 853LDA local delivery agent 854LDAP Lightweight Directory Access Protocol 855LDR light-dependent resistor 856LDT local descriptor table 857LE logical extent 858LED light emitting diode 859LELL low energy link layer 860LER label edge router 861LF line feed 862LF low frequency 863LFM lowest frequency mode 864LFN long file names 865LFO low-frequency oscillation 866LFS log-structured file system 867LFU least frequently used 868LHP loop heat pipe 869LIF logical interchange format 870LIFO last in, first out 871LILO LInux LOader 872LILO last in, last out 873LINT local interrupt 874LIR local Internet registry 875LISP LISt Processor 876LISP Locator/ID Separation Protocol 877LKM {Linux,loadable} kernel module 878LKML Linux kernel mailing list 879LL load linked 880LL/SC load linked/store conditional 881LLC logical link control 882LLD low-level design 883LLDD low-level design document 884LLDP link layer discovery protocol 885LLF low level format 886LLMNR link-local multicast name resolution 887LLVM Low Level Virtual Machine 888LM long mode 889LMCE local machine check exception 890LMI local management interface 891LMM link management mode 892LMP link management protocol 893LNO loop nest optimization 894LOC lines of code 895LOM lights-out management 896LPE Linux performance events 897LPC low pin count 898LPS local positioning system 899LRC longitudinal redundancy check 900LRM left-to-right mark 901LRO left-to-right override 902LRU least recently used 903LS link state 904LSAN Leak Sanitizer 905LSB Linux standards base 906LSB least significant {bit,byte} 907LSI large scale integration 908LSL load segment limit 909LSM log structured merge 910LSN Large Scale NAT 911LSN log sequence number 912LSO large send offload 913LSR label switch router 914LTCC low temperature co-fired ceramic 915LTO linear tape-open 916LTO link time optimization 917LTR left to right 918LTR load task register 919LTR letter(-sized paper) 920LTS long term support 921LUA Lua Uppercase Accident 922LUN logical unit number 923LV logical volume 924LVM logical volume management 925LVT local vector table 926LVDS Low-Voltage Differential Signaling 927LWP light-weight process 928LZSS Lempel Ziv Storer Szymanski 929LZW Lempel Ziv Welch 930MAB MAC authentication bypass 931MAC mandatory access control 932MAC {media,medium} access control 933MAC message authentication {check,code} 934MADT multiple APIC descriptor table 935MAMR microwave-assisted magnetic recording 936MB megabyte 937MBA multi-boot agent 938MBR master boot record 939MBS megabits per second 940MC memory controller 941MCA machine check architecture 942MCA MicroChannel architecture 943MCC multiversion concurrency control 944MCE machine check exception 945MCGA Multi-Color Graphics Array 946MCH memory controller hub 947MCLAG multi-chassis link aggregation group 948MCM multi-chip module 949MCQ memory controlled queue 950MD machine-dependent 951MD MiniDisc 952MD-SAL model-driven service abstraction layer 953MDA mail delivery agent 954MDA Monochrome Display Adapter 955MDC Management Data Clock 956MDI Medium Dependent Interface 957MDI-X Medium Dependent Interface Crossover 958MDIO Management Data Input/Output 959MDMX MIPS Digital Media eXtension 960MDRAM multibank dynamic random access memory 961MESI modified, exclusive, shared, invalid 962MFC merge from current 963MFC Microsoft Foundation Classes 964MFM modified frequency modulation 965MFU most frequently used 966MGCP media gateway control protocol 967MHU message handling unit 968MI machine-independent 969MI machine interface 970MIB management information base 971MIC message integrity {check,code} 972MID mobile Internet device 973MIDI musical instrument digital interface 974MIF management information format 975MII media independent interface 976MIM man in the middle 977MIMD multiple instruction, multiple data 978MIME Multipurpose Internet Mail Extensions 979MIMO multiple input multiple output 980MIPS million instructions per second 981MIPS Microprocessor without Interlocked Pipeline Stages 982MISD multiple instruction, single data 983MIT Massachusetts Institute of Technology 984MITM man in the middle 985ML machine language 986ML machine learning 987ML mailing list 988ML markup language 989ML maximum likelihood 990MLAG multi-chassis link aggregation group 991MLC multi-level cell 992MLD multicast listener discovery 993MLHP micro loop heat pipe 994MMF multi-mode fiber 995MMIC monolithic microwave integrated circuit 996MMIO memory mapped input/output 997MMORPG massive multiplayer online role playing game 998MMRP multiple MAC registration protocol 999MMU memory management unit 1000MMX matrix math extension 1001MMX multimedia extension 1002MMX multiple math extension 1003MO magneto-optical 1004MOESI modified, owned, exclusive, shared, invalid 1005MOF maximum operating frequency 1006MOSFET metal-oxide-semiconductor field-effect transistor 1007MOSI modified, owned, shared, invalid 1008MP multi-platform 1009MP multiplayer 1010MP {multiprocessing,multiprocessor} 1011MPEG moving picture experts group 1012MPI message passing interface 1013MPLS Multiprotocol Label Switching 1014MPP massively parallel processor 1015MPS memory pool system 1016MPS multiprocessor specification 1017MQTT Message Queuing Telemetry Transport 1018MR modem ready 1019MRO method resolution order 1020MRP multiple registration protocol 1021MRU most recently used 1022MS Microsoft 1023MSAN Memory Sanitizer 1024MSB most significant {bit,byte} 1025MSC message sequence chart 1026MSE mean square error 1027MSF minutes seconds frames 1028MSI message signaled interrupt 1029MSI modified, shared, invalid 1030MSR {machine state,model-specific} register 1031MSS maximum segment size 1032MSTP Multiple Spanning Tree Protocol 1033MT machine translation 1034MTA mail transfer agent 1035MTBF mean time between failures 1036MTP media transfer protocol 1037MTRR memory type range register 1038MTTF mean time to failure 1039MTU maximum transmission unit 1040MUA mail user agent 1041MUD multi-user domain 1042MVCC multiversion concurrency control 1043MVR multicast VLAN registration 1044MVRP multiple VLAN registration protocol 1045MWE module width encoding 1046MX mail exchange 1047NACK negative acknowledgement 1048NAK negative acknowledgement 1049NAN neighbor awareness networking 1050NAN not a number 1051NAPT Network Address Port Translation 1052NAS network attached storage 1053NAT network address translation 1054NAV network allocation vector 1055NC numerical control 1056NC-SI network controller sideband interface 1057NCO numerically-controlled oscillator 1058NCP Network Control Protocol 1059NCSI network connectivity status indicator 1060NCQ native command queuing 1061ND neighbor discovery 1062NDFA nondeterministic finite automaton 1063NDIS network driver interface specification 1064NE numeric error 1065NEWS Network extensible Window System 1066NFA nondeterministic finite automaton 1067NFC near-field communication 1068NFCI no functional change intended 1069NFS network file system 1070NFV network function virtualization 1071NIA next instruction address 1072NIC network information center 1073NIC network interface card 1074NIDS network intrusion detection system 1075NIP network interface protocol 1076NIPS network intrusion prevention system 1077NIS network information service 1078NIST National Institute of Standards and Technology 1079NLS native language support 1080NMI non-maskable interrupt 1081NNTP Network News Transfer Protocol 1082NMR nonce-misuse resistance 1083NOC network operations center 1084NOP no operation 1085NOS network operating system 1086NP nondeterministic polynomial time 1087NRND not recommended for new designs 1088NRZ non-return to zero 1089NSA nation-state adversary 1090NSA no such agency 1091NSA National Security Agency 1092NTM non-deterministic Turing machine 1093NTP Network Time Protocol 1094NUMA non-uniform memory access 1095NURBS non-uniform rational basis spline 1096NVMM NetBSD Virtual Machine Monitor 1097NVMM non-volatile main memory 1098NVRAM non-volatile random access memory 1099NW not write-through 1100NX no execute 1101OAEP optimal asymmetric encryption padding 1102OAM operations, administration, and {management,maintenance} 1103OBO off by one 1104OBOE off by one error 1105OCL object constraint language 1106OCR optical character recognition 1107ODE offline device environment 1108ODI open data-link interface 1109ODM object data manager 1110ODCM on-demand clock modulation 1111ODMR on-demand mail relay 1112ODT on-die termination 1113OEM original equipment manufacturer 1114OFB output feedback 1115OFDM orthogonal frequency division multiplexing 1116OFET organic field-effect transistor 1117OLAP online analytical processing 1118OLE object linking and embedding 1119OLTP online transaction processing 1120ONFI open nand flash interface 1121OO OpenOffice 1122OO object oriented 1123OOB out of band 1124OOE out of order execution 1125OOM out of memory 1126OOO OpenOffice.org 1127OOP object oriented programming 1128OOPS object oriented programming systems 1129OOSE object oriented software engineering 1130OPM operations per minute 1131OPS operations per second 1132OQL Object Query Language 1133ORB object request broker 1134ORM object-relational mapping 1135OS operating system 1136OSD object-based storage device 1137OSD open source definition 1138OSF open software foundation 1139OSI Open Source Initiative 1140OSI open systems interconnection 1141OSPF open shortest path first 1142OSPM OS power management 1143OSS open sound system 1144OSS open source software 1145OSVW operating system visible workarounds 1146OTP one time password 1147OTP open telecom platform 1148OU organizational unit 1149OUI organizationally unique identifier 1150OWASP Open Web Application Security Project 1151OWL Web Ontology Language 1152P2P PCI to PCI 1153P2P peer to peer 1154PA phase accumulator 1155PA physical address 1156PAAS platform as a service 1157PAC phase-amplitude converter 1158PAE physical address extension 1159PAGP port aggregation protocol 1160PAL phase alternating line 1161PAL programmable array logic 1162PAM pluggable authentication modules 1163PAM pulse amplitude modulation 1164PAP password authentication protocol 1165PAT page attribute table 1166PAT port address translation 1167PATA parallel ATA 1168PAX portable archive exchange 1169PBE pending break encoding 1170PBE programming by example 1171PBR partition boot record 1172PBX private branch exchange 1173PC personal computer 1174PC program counter 1175PCB printed circuit board 1176PCB process control block 1177PCB Protocol Control Block 1178PCBC propagating cipher block chaining 1179PCC Portable C Compiler 1180PCD page-level cache disable 1181PCE path computation element 1182PCE performance-monitor counter enable 1183PCEP Path Computation Element Protocol 1184PCH platform controller hub 1185PCI peripheral component interconnect 1186PCM phase change memory 1187PCM pulse code modulation 1188PCMCIA Personal Computer Memory Card International Association 1189PCP Port Control Protocol 1190PD public domain 1191PDA personal digital assistant 1192PDA pushdown automaton 1193PDAG propositional directed acyclic graph 1194PDB power distribution board 1195PDF portable document format 1196PDM pulse-duration modulation 1197PDN pull-down network 1198PDP page {descriptor,directory} page 1199PDS product data sheet 1200PDU protocol data unit 1201PE protection enable 1202PE provider edge 1203PEAP Protected EAP 1204PECI platform environment control interface 1205PEP protocol extension protocol 1206PER packed encoding rules 1207PFS perfect forward secrecy 1208PGAS partitioned global address space 1209PGE page global enable 1210PGO profile guided optimization 1211PGP Pretty Good Privacy 1212PHB PCI host bridge 1213PHP PHP: Hypertext Preprocessor 1214PIC performance instrumentation counters 1215PIC position independent code 1216PIC programmable interrupt controller 1217PICNIC problem in chair, not in computer 1218PID process id 1219PIE position independent executable 1220PIL Priority Interrupt Level 1221PIM personal information manager 1222PIM platform-independent model 1223PIO programmed input/output 1224PIPT physically indexed, physically tagged 1225PIQ prefetch input queue 1226PIT programmable interrupt timer 1227PIV personal identity verification 1228PIX Private Internet eXchange 1229PKCS public-key cryptography standards 1230PKI public key infrastructure 1231PLC programmable logic controller 1232PLD programmable logic device 1233PLL phase locked loop 1234PLRU pseudo LRU 1235PLT procedure linkage table 1236PLTM package level thermal management 1237PM power management 1238PM {phase,pulse} modulation 1239PMC performance monitoring counters 1240PME power management event 1241PMEG page map entry group 1242PMI performance monitoring infrastructure 1243PMI platform management interrupt 1244PMIC power management integrated circuit 1245PMIO port-mapped input/output 1246PMT photo-multiplier tube 1247PMU performance monitoring units 1248PMU power management unit 1249PNG portable network graphics 1250PNP plug and play 1251POE power over ethernet 1252POF probability of failure 1253POP Post Office Protocol 1254POP power on password 1255POR plan of record 1256POSIX Portable Operating System Interface [for Unix] 1257POST power on self test 1258POTS plain old telephone system 1259POWER Performance Optimization With Enhanced RISC 1260POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1261PP pair programming 1262PPB PCI [to] PCI bridge 1263PPC PowerPC 1264PPC Power Performance Computing 1265PPI pixels per inch 1266PPM pages per minute 1267PPP Point-to-Point Protocol 1268PPPOA Point-to-Point Protocol over ATM 1269PPPOE Point-to-Point Protocol over Ethernet 1270PPR processor programming reference 1271PPT powerpoint 1272PPT punched paper tape 1273PPU physics processing unit 1274PRAM Parameter RAM 1275PRBS pseudorandom bit sequence 1276PRG pseudorandom generator 1277PRF pseudorandom function [family] 1278PRML partial response, maximum likelihood 1279PRN pseudorandom {noise,number} 1280PRNG pseudorandom number generator 1281PROM programmable read only memory 1282PRP pseudorandom permutation 1283PRU Programmable Realtime Unit 1284PS PostScript 1285PSD power spectral density 1286PSE page size extensions 1287PSK phase shift keying 1288PSK pre-shared key 1289PSTN public switched telephone network 1290PSW program status word 1291PTE page table entry 1292PTLA pseudo top level aggregator 1293PTP page table page 1294PTV perceived target value 1295PU processing unit 1296PUC personal unblocking code 1297PUN physical unit number 1298PV physical volume 1299PVC permanent virtual circuit 1300PVG physical volume group 1301PVI protected-mode virtual interrupt 1302PVRST Per-VLAN rapid spanning tree 1303PVST Per-VLAN Spanning Tree 1304PWM pulse width modulation 1305PXE preboot execution environment 1306QA quality assurance 1307QAM quadrature amplitude modulation 1308QAM quality assurance management 1309QBE query by example 1310QC quality control 1311QDI quasi delay insensitive 1312QCIF quarter common intermediate format 1313QOI quality of implementation 1314QOI quick order interface 1315QOS quality of service 1316QVL qualified vendor list 1317R/O read only 1318R/W read/write 1319RA receiver address 1320RA remote assistance 1321RA resource affinity 1322RA router advertisement 1323RAD rapid application development 1324RADIUS remote authentication dial-in user service 1325RAID redundant array of {independent,inexpensive} disks 1326RAM random access memory 1327RAS reliability, availability and serviceability 1328RAS remote access service 1329RAS restartable atomic sequence 1330RAS row address strobe 1331RBF radial basis function 1332RBNF routing backus-naur form 1333RBT red-black tree 1334RC release candidate 1335RC remote control 1336RC run commands 1337RCS Revision Control System 1338RCU read, copy, update 1339RDB Rigid Disk Block 1340RDBMS relational database management system 1341RDF Resource Description Framework 1342RDM relational data model 1343RDMA remote direct memory access 1344RDP remote desktop protocol 1345RDRAM Rambus DRAM 1346RE regular expression 1347REPL read, evaluate, print, loop 1348REST representational state transfer 1349RF radio frequency 1350RFB remote frame buffer 1351RFI radio frequency interference 1352RFO request for ownership 1353RFU reserved for future use 1354RGB red green blue 1355RGBA red green blue alpha 1356RGMII reduced gigabit media independent interface 1357RH read hit 1358RHEL Red Hat Enterprise Linux 1359RHL Red Hat Linux 1360RIB routing information base 1361RIFF Resource Interchange File Format 1362RIP Raster Image Processor 1363RIP Routing Information Protocol 1364RIR regional Internet registry 1365RISC reduced instruction set {computer,computing} 1366RKM ROM Kernel Manual 1367RLE run length encoding 1368RLL run length limited 1369RLO right-to-left override 1370RM read miss 1371RMCP Remote Management Control Protocol 1372RMI remote method invocation 1373RMO Relaxed Memory Ordering 1374RMPM rapid memory power management 1375RMS root mean square 1376RMW read, modify, write 1377RNG random number generator 1378ROM read only memory 1379ROP return-oriented programming 1380RPC remote procedure call 1381RPG Report Program Generator 1382RPKI resource PKI 1383RPL requested privilege level 1384RPM revolutions per minute 1385RPN reverse Polish notation 1386RPVST Rapid Per-VLAN Spanning Tree 1387RR random replacement 1388RR round robin 1389RS relay station 1390RSA Rivest, Shamir, [and] Adleman 1391RSIP Realm Specific IP 1392RSN Robust Secure Network 1393RSS really simple syndication 1394RSS Receive Side Scaling 1395RSS residual sum of squares 1396RSTP Rapid Spanning Tree Protocol 1397RT real time 1398RTC real time clock 1399RTC real time computing 1400RTF rich text format 1401RTL register transfer language 1402RTL resistor-transistor logic 1403RTL right to left 1404RTOS real time operating system 1405RTP Real-time Transport Protocol 1406RTS request to send 1407RTT round trip time 1408RUP rational unified process 1409RW Rabin-Williams 1410RWM read-write memory 1411RX {receive,receiver} 1412S/PDIF Sony/Philips Digital Interface Format 1413SA security advisory 1414SA security association 1415SA source address 1416SA structured analysis 1417SAAS software as a service 1418SABRE Semi-automated business research environment 1419SACD super audio compact disc 1420SAD security association database 1421SAF-TE SCSI accessed fault-tolerant enclosure 1422SAGE Semi-automated ground environment 1423SAL {service,system} abstraction layer 1424SAM serial access memory 1425SAM sum addressed memory 1426SAML security assertion markup language 1427SAN storage area network 1428SAP service access point 1429SAPIC streamlined advanced programmable interrupt controller 1430SASD structured analysis, structured design 1431SASI Shugart Associates System Interface 1432SASL simple authentication [and] security layer 1433SATA serial advanced technology attachment 1434SAX simple API for XML 1435SB sound blaster 1436SBSA server base system architecture 1437SBU standard build unit 1438SC store conditional 1439SCA source code analyzer 1440SCADA supervisory control and data acquisition 1441SCC single chip cloud 1442SCC source code control 1443SCCP skinny call control protocol 1444SCCS Source Code Control System 1445SCI scalable coherent interface 1446SCI system control interrupt 1447SCIM smart common input method 1448SCM software configuration management 1449SCM source code management 1450SCM storage-class memory 1451SCO synchronous connection orientated 1452SCP secure copy 1453SCP system control processor 1454SCPI system control and power interface 1455SCSI Small Computer System Interface 1456SCTP Stream Control Transmission Protocol 1457SDDC software defined data center 1458SDEI software delegated exception interface 1459SDI symbol deinterleave 1460SDK software development kit 1461SDL Simple Declarative Language 1462SDL Simple Direct-media Layer 1463SDLC {software,system,systems} development life cycle 1464SDN software defined networking 1465SDP Session Description Protocol 1466SDR software defined radio 1467SDRAM synchronous dynamic random access memory 1468SDS software defined storage 1469SDT syntax-directed translation 1470SEA synchronous external abort 1471SEGV segmentation violation 1472SED self-encrypting drive 1473SED stream editor 1474SEMB serial ATA enclosure management bridge 1475SEO search engine optimization 1476SES SCSI enclosure services 1477SFC sequential function chart 1478SFI simple firmware interface 1479SFI software fault isolation 1480SFTP SSH File Transfer Protocol 1481SFTP Serial File Transfer Protocol 1482SFTP Simple File Transfer Protocol 1483SGI Silicon Graphics, Inc 1484SGI software generated interrupt 1485SGMII serial gigabit media independent interface 1486SGPIO serial general purpose input/output 1487SGRAM synchronous graphics random access memory 1488SHA secure hash algorithm 1489SICP structure and interpretation of computer programs 1490SIDH supersingular isogeny Diffie-Hellman 1491SIEM security information and event management 1492SIF source input format 1493SIFS short inter-frame space 1494SIM subscriber identity module 1495SIMD single instruction, multiple data 1496SIMM single inline memory module 1497SIP Session Initiation Protocol 1498SIR signal-to-interference ratio 1499SIR slow infrared 1500SISD single instruction, single data 1501SIV synthetic intialization vector 1502SLAAC stateless address auto-configuration 1503SLC single-level cell 1504SLDRAM synchronous-link dynamic random access memory 1505SLED single large expensive disk 1506SLI scalable link interface 1507SLI scan-line interleave 1508SLIC system license internal code 1509SLOC source lines of code 1510SLRU segmented LRU 1511SMA smart memory access 1512SMAF system management action field 1513SMAP Simple Mail Access Protocol 1514SMAP supervisor mode access prevention 1515SMART self-monitoring analysis and reporting technology 1516SMB Server Message Block 1517SMB system management bus 1518SMBIOS System Management BIOS 1519SMC system management controller 1520SMD storage module device 1521SMEP supervisor mode execution protection 1522SMF single mode fiber 1523SMI structure of management information 1524SMI system management interrupt 1525SMM system management mode 1526SMP serial management protocol 1527SMP symmetric multiprocessing 1528SMR shingled magnetic recording 1529SMR state machine replication 1530SMT simultaneous multithreading 1531SMTP Simple Mail Transfer Protocol 1532SMU system management unit 1533SNA systems network architecture 1534SNAP Sub-Network Access Protocol 1535SNIA Storage Networking Industry Association 1536SNMP Simple Network Management Protocol 1537SNR signal-to-noise ratio 1538SOA service oriented architecture 1539SOAP Simple Object Access Protocol 1540SOC system on chip 1541SOF start of frame 1542SOH start of header 1543SOHO small office/home office 1544SOL serial over LAN 1545SOM system on module 1546SP service pack 1547SP stack pointer 1548SPA storage pool allocator 1549SPAN switched port analyzer 1550SPARC scalable processor architecture 1551SPARQL SPARQL Protocol and RDF Query Language 1552SPD security policy database 1553SPD serial presence detect 1554SPDIF Sony/Philips digital interface format 1555SPI serial peripheral interface 1556SPI stateful packet inspection 1557SPL system interrupt priority level 1558SPL spinlock 1559SPMD single process, multiple data 1560SPR special purpose register 1561SPT sectors per track 1562SQA software quality assurance 1563SQCIF sub quarter common intermediate format 1564SQL Structured Query Language 1565SRAM static random access memory 1566SRC sample rate conversion 1567SRP SCSI RDMA protocol 1568SRR shaped round robin 1569SRTP Secure Real-time Transport Protocol 1570SS self-snoop 1571SS stack segment 1572SSA static single assignment 1573SSAP source service access point 1574SSB single-sideband modulation 1575SSC spread spectrum clock 1576SSD solid state drive 1577SSE streaming SIMD extensions 1578SSFDC solid state floppy disc card 1579SSH secure shell 1580SSI server side includes 1581SSID service set identifier 1582SSTP secure socket tunneling protocol 1583SSL secure sockets layer 1584SSP stack smashing protection 1585STC software thermal control 1586STD state transition diagram 1587STM software transactional memory 1588STOMP Streaming Text Oriented Messaging Protocol 1589STP Spanning Tree Protocol 1590STP shielded twisted pair 1591STRG spanning tree root guard 1592SUN Stanford University Network 1593SUS Single Unix Specification 1594SUT system under test 1595SVC switched virtual circuit 1596SVG scalable vector graphics 1597SVGA Super Video Graphics Array 1598SVI {switch,switched} virtual interface 1599SVM secure virtual machine 1600SVM support vector machine 1601SVR System V Release 1602SVS Separate Virtual Space 1603SWF Shockwave Flash 1604SWIG simplified wrapper [and] interface generator 1605SYR symbol timing recovery 1606TA test assertion 1607TA transmitter address 1608TACACS terminal access controller access-control system 1609TAI international atomic time 1610TAO track at once 1611TAOCP The Art of Computer Programming 1612TAP Test Anything Protocol 1613TAS test and set 1614TB terabyte 1615TBNF transitional backus-naur form 1616TCB trace capture buffer 1617TCB trusted computing base 1618TCC thermal control circuit 1619TCL tool command language 1620TCP Transmission Control Protocol 1621TCQ tagged command queueing 1622TDC time [to] digital converter 1623TDD test-driven development 1624TDD time division duplex 1625TDM time division multiplexing 1626TDMA time division multiple access 1627TDOA time difference of arrival 1628TDP thermal design {point,power} 1629TDR time-domain reflectometry 1630TECO Text Editor and Corrector 1631TEE Trusted Execution Environment 1632TFT thin film transistor 1633TFTP Trivial File Transfer Protocol 1634TIAS try it and see 1635TIFF tagged image file format 1636TITS try it to see 1637TK temporal key 1638TKIP Temporal Key Integrity Protocol 1639TLA top level aggregator 1640TLB translation lookaside buffer 1641TLD top level domain 1642TLER time-limited error recovery 1643TLI transport layer interface 1644TLS thread local storage 1645TLS transport layer security 1646TM Turing machine 1647TM thermal monitor 1648TMG transmogrifier 1649TMDS transition minimized differential signaling 1650TMO timeout 1651TOD time of day 1652TOE TCP offload engine 1653TOFU trust on first use 1654TOS terms of service 1655TOS trusted operating system 1656TOS type of service 1657TOTP time-based one time password 1658TP transaction processing 1659TPI tracks per inch 1660TPM transactions per minute 1661TPM trusted platform module 1662TPR task priority register 1663TPS transactions per second 1664TPS transmission parameters signaling 1665TR task register 1666TR token ring 1667TRL timing recovery loop 1668TRNG true random number generator 1669TS terminal services 1670TS time series 1671TS time stamp 1672TS transport stream 1673TSAN Thread Sanitizer 1674TSC time stamp counter 1675TSD time stamp disable 1676TSDB time series database 1677TSL test, set, lock 1678TSO time sharing option 1679TSO TCP segmentation offload 1680TSO Total Store Ordering 1681TSP Time-Stamp Protocol 1682TSP Tunnel Setup Protocol 1683TSP time synchronization protocol 1684TSP traveling salesman problem 1685TSS task state segment 1686TSV tab-separated values 1687TTL time to live 1688TTL transistor-transistor logic 1689TTM translation table maps 1690TTY teletype 1691TUI {terminal,text-based,textual} user interface 1692TX {transmit out,transmitter} 1693TXG transaction group 1694TZ time zone 1695UAC user {access,account} control 1696UAF use-after-free 1697UART universal asynchronous receiver/transmitter 1698UAT user acceptance testing 1699UB undefined behavior 1700UBSAN Undefined Behavior Sanitizer 1701UC uncacheable 1702UCS uniform-cost search 1703UCS unified computing system 1704UCS universal coded character set 1705UDI uniform driver interface 1706UDMA ultra DMA 1707UDO ultra density optical 1708UDP User Datagram Protocol 1709UEFI unified extensible firmware interface 1710UFO UDP fragmentation offload 1711UFS Unix File System 1712UGA universal graphics adapter 1713UI unit interval 1714UI user interface 1715UICC universal integrated circuit card 1716UID unique identifier 1717UID user identifier 1718UL upload 1719UMA uniform memory access 1720UMA upper memory area 1721UMB upper memory block 1722UML unified modeling language 1723UMPC ultra-mobile PC 1724UPNP universal plug and play 1725UPS uninterruptible power supply 1726URI uniform resource identifier 1727URL uniform resource locator 1728URN uniform resource name 1729USART universal synchronous/asynchronous receiver/transmitter 1730USB universal serial bus 1731USWC uncacheable speculative write combining 1732UT unit test 1733UTC coordinated universal time 1734UTF unicode transformation formats 1735UTP unshielded twisted pair 1736UTS UNIX time-sharing 1737UUCP Unix-to-Unix Copy Protocol 1738UUID universally unique identifier 1739UUOC useless use of cat 1740UUT unit under test 1741UX user experience 1742VA vertical alignment 1743VA virtual address 1744VA volt-ampere 1745VAX virtual address extension 1746VB Visual Basic 1747VBR volume boot record 1748VCA variable-gain amplifier 1749VCC common collector voltage 1750VCCP virtual chassis control protocol 1751VCF voltage-controlled filter 1752VCM virtual channel memory 1753VCO voltage-controlled oscillator 1754VCP virtual chassis port 1755VCS version control system 1756VDPAU Video Decode and Presentation API for Unix 1757VES virtual execution system 1758VESA Video Electronics Standards Association 1759VFO variable-frequency oscillator 1760VFS virtual file system 1761VG volume group 1762VGA Video Graphics Array 1763VHDCI very high density cable interconnect 1764VID {VLAN,voltage level} identifier 1765VIM Vi IMproved 1766VIPT virtually indexed, physically tagged 1767VIVT virtually indexed, virtually tagged 1768VLAN virtual local area network 1769VLD variable-length decoding 1770VLIW very long instruction word 1771VLSI very large scale integration 1772VLSM variable length subnet mask 1773VM virtual {machine,memory} 1774VME virtual mode extension 1775VMX vector multimedia extensions 1776VMX virtual machine extensions 1777VNC virtual network computing 1778VOD video on demand 1779VPD vital product data 1780VPN virtual private network 1781VPWS virtual private wire service 1782VR virtual reality 1783VRAM video random access memory 1784VRF virtual routing and forwarding 1785VRM voltage regulator module 1786VROC Virtual RAID On CPU 1787VRRP Virtual Router Redundancy Protocol 1788VSTP VLAN Spanning Tree Protocol 1789VTP VLAN Trunking Protocol 1790VXFS Veritas file system 1791VXVM Veritas volume manager 1792W watt 1793W3C World Wide Web Consortium 1794WAFL write anywhere file layout 1795WAMP Web Application Messaging Protocol 1796WAN wide area network 1797WAP Wireless Application Protocol 1798WAP wireless access point 1799WDM Windows Driver Model 1800WDDM Windows Display Driver Model 1801WDT watchdog timer 1802WEP Wired Equivalent Privacy 1803WFI wait for interrupt 1804WFQ weighted fair queuing 1805WH write hit 1806WHEA Windows hardware error architecture 1807WIFI wireless fidelity 1808WLAN wireless local area network 1809WM write miss 1810WMF Windows meta file 1811WMI Windows Management Instrumentation 1812WOL Wake-on-LAN 1813WOM Wake-on-Modem 1814WOR Wake-on-Ring 1815WORM write once read many 1816WP WordPerfect 1817WP word processor 1818WP write protect 1819WPA Wi-Fi Protected Access 1820WPA2 Wi-Fi Protected Access II 1821WPAD web proxy auto-discovery protocol 1822WPS Wi-Fi Protected Setup 1823WRAM window random access memory 1824WS web services 1825WTC write through caching 1826WTD weighted tail drop 1827WWAN wireless wide area network 1828WWW world wide web 1829WYSIAYG what you see is all you get 1830WYSIWYG what you see is what you get 1831XBAR crossbar 1832XDMCP X Display Manager control protocol 1833XER XML encoding rules 1834XGA Extended Graphics Array 1835XHR XMLHttpRequest 1836XIP execute in place 1837XML Extensible Markup Language 1838XNA XNA's not acronymed 1839XNS Xerox network systems 1840XOR exclusive or 1841XP extreme programming 1842XSI X/Open System Interface 1843XSL extensible stylesheet language 1844XSLT extensible stylesheet language transformations 1845XSS cross site scripting 1846XT extended technology 1847XTACACS extended terminal access controller access-control system 1848XTI X/Open transport interface 1849XUL XML user interface language 1850YACC yet another compiler compiler 1851YAML YAML ain't markup language 1852YANG yet another next generation 1853YAWPFAPR you are welcome; please file a problem report 1854YP Yellow Pages 1855YTD year to date 1856ZAP ZFS attribute processor 1857ZBR zone bit recording 1858ZFOD zero-filled on demand 1859ZFS zettabyte file system 1860ZIF zero insertion force 1861ZIFS zero insertion force socket 1862ZIL ZFS intent log 1863ZMA zone multicast address 1864ZOI zero one infinity 1865ZOI zone of influence 1866ZPL ZFS Posix layer 1867ZVOL ZFS Volume 1868