acronyms.comp revision 1.343
1$NetBSD: acronyms.comp,v 1.343 2023/03/01 14:45:26 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 489DWARF Debugging With Attributed Record Formats 490E-XER extended XML encoding rules 491EABI embedded-application binary interface 492EAI Email Address Internationalization 493EAI Enterprise Application Integration 494EAP Extensible Authentication Protocol 495EAPOL EAP over Lan 496EAV entity-attribute-value model 497EAV ethernet audio/video bridging 498EBCDIC Extended Binary Coded Decimal Interchange Code 499EBDA Extended BIOS Data Area 500EBNF extended backus-naur form 501EBR extended boot record 502EC elliptic curve 503ECC elliptic curve cryptography 504ECC error correction code 505ECDH elliptic curve Diffie-Hellman 506ECDL elliptic curve discrete logarithm 507ECDLP elliptic curve discrete logarithm problem 508ECDSA elliptic curve digital signature algorithm 509ECL emitter-coupled logic 510ECN explicit congestion notification 511ECP enhanced capability port 512ECS enhanced chip set 513ECS extended configuration space 514EDAC error detection and correction 515EDAT enhanced dynamic acceleration technology 516EdDSA Edwards curve digital signature algorithm 517EDGE explicit data graph execution 518EDID extended display identification data 519EDO extended data out 520EDS electronical data sheet 521EDSAC electronic delay storage automatic calculator 522EDVAC electronic discrete variable automatic computer 523EEE energy efficient ethernet 524EEE embrace, extend, extinguish 525EEPROM electrically erasable programmable read only memory 526EFI extensible firmware interface 527EFL emitter follower logic 528EFM eight to fourteen modulation 529EFS extent file system 530EGA Enhanced Graphics Adapter 531EGP exterior gateway protocol 532EH extension header 533EIDE enhanced IDE 534EISA extended industry standard architecture 535EINJ error injection table 536ELF executable and linking format 537ELS entry level system 538EMI electro-magnetic interference 539EMP electro-magnetic pulse 540EMR electro-magnetic radiation 541EMACS Editor MACroS 542ENIAC electronic numerical integrator and computer 543EOF end of file 544EOI end of interrupt 545EOIS end of interactive support 546EOL end of life 547EOL end of line 548EOT end of transmission 549EPIC explicitly parallel instruction computing 550EPP enhanced parallel port 551EPRML extended partial response, maximum likelihood 552EPROM erasable programmable read only memory 553EPT extended page tables 554ERC error recovery control 555ERD emergency recovery disk 556ERD entity relationship diagram 557ERE extended regular expression 558ERST error record serialization table 559ESAN Efficiency Sanitizer 560ESB enterprise service bus 561ESDI enhanced small disk interface 562ESDRAM enhanced synchronous dynamic random access memory 563ESI enclosure services interface 564ESS electronic switching system 565ESS extended service set 566ESSID extended service set identifier 567EST enhanced speedstep 568ETL extract, transform, load 569EU execution unit 570EULA end user license agreement 571FAT file allocation table 572FBRAM frame buffer random access memory 573FCIF full common intermediate format 574FCL fiber channel loop 575FCS frame check sequence 576FDC floppy disk controller 577FDD floppy disk drive 578FDDI fiber distributed data interface 579FDE full disk encryption 580FDT flattened device tree 581FEA finite element analysis 582FEC forward error correction 583FET field-effect transistor 584FF finite field 585FF form feed 586FFDH finite-field Diffie-Hellman 587FFH functional fixed hardware 588FFI foreign function interface 589FFM focus follows mouse 590FFS Fast File System 591FFS find first set 592FFT fast Fourier transform 593FG floating gate 594FHRP first hop redundancy protocol 595FHSS frequency hop spread spectrum 596FID frequency identifier 597FIFO first in, first out 598FILO first in, last out 599FIPS Federal Information Processing Standards 600FIR fast infrared 601FLOPS floating [point] operations per second 602FLOSS free/libre/open source software 603FM frequency modulation 604FMR false match rate 605FOSS free/open source software 606FPGA field programmable gate array 607FPM fast page mode 608FPR floating point register 609FPU floating point unit 610FQDN fully qualified domain name 611FRR false rejection rate 612FRU field replaceable unit 613FS file system 614FSB front side bus 615FSCK file system check 616FSF Free Software Foundation 617FSK frequency shift keying 618FSM finite-state machine 619FTA fault tree analysis 620FTL flash translation layer 621FTP File Transfer Protocol 622FTPS File Transfer Protocol Secure 623FTTH fiber to the home 624FUS fast user switching 625FWH firmware hub 626FWS folding white space 627GAL generic array logic 628GARP generic attribute registration protocol 629GAS generic address structure 630GC garbage collector 631GCC GNU Compiler Collection 632GCM Galois counter mode 633GCR group-coded recording 634GDI Graphics Device Interface 635GDT global descriptor table 636GECOS general comprehensive operating supervisor 637GEM graphics environment manager 638GEM graphics execution manager 639GEMM general matrix multiply 640GENA general event notification architecture 641GHC Glasgow Haskell compiler 642GHES generic hardware error source 643GIC generic interrupt controller 644GID group identifier 645GIF graphics interchange format 646GLBP gateway load balancing protocol 647GMCH graphics and memory controller hub 648GNU GNU's Not Unix 649GOP graphics output protocol 650GOT global offset table 651GPE general purpose event 652GPF general protection fault 653GPG GNU Privacy Guard 654GPL [GNU] General Public License 655GPR general purpose register 656GPS generalized processor sharing 657GPT GUID partition table 658GPU graphics processing unit 659GR golden ratio 660GRE generic routing encapsulation 661GRO generic receive offload 662GSI global system interrupt 663GSO generic send offload 664GUI graphical user interface 665GUID globally unique identifier 666GUS Gravis UltraSound 667GVFS git virtual file system 668HA high availability 669HAL hardware abstraction layer 670HAT hashed array tree 671HATEOAS hypermedia as the engine of application state 672HBA host bus adapter 673HCF halt and catch fire 674HCI host controller interface 675HCI human-computer interaction 676HCL hardware compatibility list 677HDCP High-bandwidth Digital Content Protection 678HDD hard disk drive 679HDL hardware description language 680HDMI High-Definition Multimedia Interface 681HDTV high-definition television 682HECI host embedded controller interface 683HEST hardware error source table 684HEVC high efficiency video coding 685HF high frequency 686HFM highest frequency mode 687HFS hierarchical file system 688HID human interface device 689HKDF HMAC-based key derivation function 690HKP HTTP Keyserver Protocol 691HLL high-level language 692HMA high memory area 693HMI human-machine interface 694HOOD hierarchical object oriented design 695HOTP HMAC-based one time password 696HP Hewlett-Packard 697HPC high performance computing 698HPD hot plug detection 699HPET high precision event timer 700HSM hardware security module 701HSM hierarchical storage management 702HSRP hot standby router protocol 703HT hyper-threading 704HTC hardware thermal control 705HTCC high temperature co-fired ceramic 706HTML HyperText Markup Language 707HTT hyper-threading technology 708HTTP Hypertext Transfer Protocol 709HTTPS Hypertext Transfer Protocol Secure 710HVM hardware virtual machine 711HVDS High-Voltage Differential Signaling 712HWASAN Hardware-assisted Address Sanitizer 713HZ Hertz 714I2O intelligent input/output 715IA information assurance 716IAAS infrastructure as a service 717IANA Internet Assigned Numbers Authority 718IBC iterated block cipher 719IBM International Business Machines 720IBPI international blinking pattern interpretation 721IBS instruction based sampling 722IBSS independent basic service set 723IC integrated circuit 724ICA independent computer architecture 725ICACLS integrity control access control lists 726ICB Internet Citizen's Band 727ICE in-circuit emulator 728ICE internal compiler error 729ICH I/O controller hub 730ICMP Internet Control Message Protocol 731ICT information and communications technology 732ICW initialization command word 733IDA Intel dynamic acceleration 734IDCMP Intuition direct communication message port 735IDCT inverse discrete cosine transform 736IDE integrated development environment 737IDE integrated drive electronics 738IDPS intrusion detection [and] prevention system 739IDRP inter-domain routing protocol 740IDS intrusion detection system 741IDT interrupt descriptor table 742IE Internet Explorer 743IEC International Electrotechnical Commission 744IEEE Institute of Electrical and Electronics Engineers 745IESG Internet Engineering Steering Group 746IETF Internet Engineering Task Force 747IF intermediate frequency 748IFCM isochronous flow control mode 749IFF Interchange File Format 750IFS internal field separator 751IGD Internet gateway device 752IGMP Internet Group Management Protocol 753IGP interior gateway protocol 754IHV independent hardware vendor 755IKE Internet key exchange 756ILM internal loopback mode 757ILOM integrated lights-out management 758ILP instruction level parallelism 759IM instant messaging 760IME input method editor 761IMAP Internet Message Access Protocol 762IMC integrated memory controller 763IMCR interrupt mode configuration register 764IMR interrupt mask register 765IMS information management system 766IMSI international mobile subscriber identity 767INCITS InterNational Committee for Information Technology Standards 768INODE index node 769IO input/output 770IOCTL input/output control 771IOM input/output managers 772IOMMU input/output memory management unit 773IOT Internet of Things 774IP Internet Protocol 775IP intellectual property 776IPC instructions per cycle 777IPC interprocess communication 778IPCF interprocess communication facility 779IPE integrated programming environment 780IPI intelligent peripheral interface 781IPI interprocessor interrupt 782IPL Initial Program Load 783IPL Interrupt Priority Level 784IPMB Intelligent Platform Management Bus 785IPMI Intelligent Platform Management Interface 786IPNG Internet Protocol, Next Generation 787IPS in-plane switching 788IPS intrusion prevention system 789IPSEC Internet Protocol Security 790IRC Internet Relay Chat 791IRDA infrared data association 792IRDP ICMP Router Discovery Protocol 793IR intermediate representation 794IRQ interrupt request 795IRQL interrupt request level 796IRR interrupt request register 797IRTF Internet Research Task Force 798IS information system 799ISA industry standard architecture 800ISA instruction set architecture 801ISE instant secure erase 802ISDN integrated services digital network 803ISI inter-symbol interference 804ISL initial system load 805ISM industrial, scientific, [and] medical 806ISMS information system management system 807ISN initial serial number 808ISO International Standards Organization 809ISOC Internet Society 810ISP Internet service provider 811ISR in-service register 812ISR interrupt service routine 813IST internal spanning tree 814IST interrupt stack table 815ISV independent software vendor 816IT information technology 817ITB Intel Turbo Boost 818ITIL information technology infrastructure library 819ITP in-target probe 820ITSM IT service management 821IV initialization vector 822IVT interrupt vector table 823JBOD just a bunch of disks 824JCL Job Control Language 825JFET junction [gate] field-effect transistor 826JIT just in time 827JPEG Joint Photographic Experts Group 828JRE Java Runtime Environment 829JSON JavaScript Object Notation 830JTAG joint test action group 831KASAN Kernel Address Sanitizer 832KASLR kernel address space layout randomization 833KB keyboard 834KB kilobyte 835KBD keyboard 836KBD kilobaud 837KCS keyboard controller style 838KLOC thousand lines of code 839KMS kernel-mode setting 840KPI kernel programming interface 841KVA kernel virtual address 842KVM kernel virtual machine 843KVM kernel virtual memory 844KVM keyboard, video, [and] mouse 845L2CAP link layer control and adaptation protocol 846LAG link aggregation group 847LAMP Linux Apache MySQL {Perl,PHP,Python} 848LAN local area network 849LAPIC local advanced programmable interrupt controller 850LAR load access rights 851LBA logical block addressing 852LBNF labeled backus-naur form 853LBS location-based service 854LCD liquid crystal display 855LCP link control protocol 856LDA local delivery agent 857LDAP Lightweight Directory Access Protocol 858LDR light-dependent resistor 859LDT local descriptor table 860LE logical extent 861LED light emitting diode 862LELL low energy link layer 863LER label edge router 864LF line feed 865LF low frequency 866LFM lowest frequency mode 867LFN long file names 868LFO low-frequency oscillation 869LFS log-structured file system 870LFU least frequently used 871LHP loop heat pipe 872LIF logical interchange format 873LIFO last in, first out 874LILO LInux LOader 875LILO last in, last out 876LINT local interrupt 877LIR local Internet registry 878LISP LISt Processor 879LISP Locator/ID Separation Protocol 880LKM {Linux,loadable} kernel module 881LKML Linux kernel mailing list 882LL load linked 883LL/SC load linked/store conditional 884LLC logical link control 885LLD low-level design 886LLDD low-level design document 887LLDP link layer discovery protocol 888LLF low level format 889LLMNR link-local multicast name resolution 890LLVM Low Level Virtual Machine 891LM long mode 892LMCE local machine check exception 893LMI local management interface 894LMM link management mode 895LMP link management protocol 896LNO loop nest optimization 897LOC lines of code 898LOM lights-out management 899LPE Linux performance events 900LPC low pin count 901LPS local positioning system 902LRC longitudinal redundancy check 903LRM left-to-right mark 904LRO left-to-right override 905LRU least recently used 906LS link state 907LSAN Leak Sanitizer 908LSB Linux standards base 909LSB least significant {bit,byte} 910LSI large scale integration 911LSL load segment limit 912LSM log structured merge 913LSN Large Scale NAT 914LSN log sequence number 915LSO large send offload 916LSR label switch router 917LTCC low temperature co-fired ceramic 918LTO linear tape-open 919LTO link time optimization 920LTR left to right 921LTR load task register 922LTR letter(-sized paper) 923LTS long term support 924LUA Lua Uppercase Accident 925LUN logical unit number 926LV logical volume 927LVM logical volume management 928LVT local vector table 929LVDS Low-Voltage Differential Signaling 930LWP light-weight process 931LZSS Lempel Ziv Storer Szymanski 932LZW Lempel Ziv Welch 933MAB MAC authentication bypass 934MAC mandatory access control 935MAC {media,medium} access control 936MAC message authentication {check,code} 937MADT multiple APIC descriptor table 938MAMR microwave-assisted magnetic recording 939MB megabyte 940MBA multi-boot agent 941MBR master boot record 942MBS megabits per second 943MC memory controller 944MCA machine check architecture 945MCA MicroChannel architecture 946MCC multiversion concurrency control 947MCE machine check exception 948MCGA Multi-Color Graphics Array 949MCH memory controller hub 950MCLAG multi-chassis link aggregation group 951MCM multi-chip module 952MCQ memory controlled queue 953MD machine-dependent 954MD MiniDisc 955MD-SAL model-driven service abstraction layer 956MDA mail delivery agent 957MDA Monochrome Display Adapter 958MDC Management Data Clock 959MDI Medium Dependent Interface 960MDI-X Medium Dependent Interface Crossover 961MDIO Management Data Input/Output 962MDMX MIPS Digital Media eXtension 963MDRAM multibank dynamic random access memory 964MESI modified, exclusive, shared, invalid 965MFC merge from current 966MFC Microsoft Foundation Classes 967MFM modified frequency modulation 968MFU most frequently used 969MGCP media gateway control protocol 970MHU message handling unit 971MI machine-independent 972MI machine interface 973MIB management information base 974MIC message integrity {check,code} 975MID mobile Internet device 976MIDI musical instrument digital interface 977MIF management information format 978MII media independent interface 979MIM man in the middle 980MIMD multiple instruction, multiple data 981MIME Multipurpose Internet Mail Extensions 982MIMO multiple input multiple output 983MIPS million instructions per second 984MIPS Microprocessor without Interlocked Pipeline Stages 985MISD multiple instruction, single data 986MIT Massachusetts Institute of Technology 987MITM man in the middle 988ML machine language 989ML machine learning 990ML mailing list 991ML markup language 992ML maximum likelihood 993MLAG multi-chassis link aggregation group 994MLC multi-level cell 995MLD multicast listener discovery 996MLHP micro loop heat pipe 997MLIR multi-level intermediate representation 998MMF multi-mode fiber 999MMIC monolithic microwave integrated circuit 1000MMIO memory mapped input/output 1001MMORPG massive multiplayer online role playing game 1002MMRP multiple MAC registration protocol 1003MMU memory management unit 1004MMX matrix math extension 1005MMX multimedia extension 1006MMX multiple math extension 1007MO magneto-optical 1008MOESI modified, owned, exclusive, shared, invalid 1009MOF maximum operating frequency 1010MOSFET metal-oxide-semiconductor field-effect transistor 1011MOSI modified, owned, shared, invalid 1012MP multi-platform 1013MP multiplayer 1014MP {multiprocessing,multiprocessor} 1015MPEG moving picture experts group 1016MPI message passing interface 1017MPLS Multiprotocol Label Switching 1018MPP massively parallel processor 1019MPS memory pool system 1020MPS multiprocessor specification 1021MQTT Message Queuing Telemetry Transport 1022MR modem ready 1023MRO method resolution order 1024MRP multiple registration protocol 1025MRU most recently used 1026MS Microsoft 1027MSAN Memory Sanitizer 1028MSB most significant {bit,byte} 1029MSC message sequence chart 1030MSE mean square error 1031MSF minutes seconds frames 1032MSI message signaled interrupt 1033MSI modified, shared, invalid 1034MSR {machine state,model-specific} register 1035MSS maximum segment size 1036MSTP Multiple Spanning Tree Protocol 1037MT machine translation 1038MTA mail transfer agent 1039MTBF mean time between failures 1040MTP media transfer protocol 1041MTRR memory type range register 1042MTTF mean time to failure 1043MTU maximum transmission unit 1044MUA mail user agent 1045MUD multi-user domain 1046MVCC multiversion concurrency control 1047MVR multicast VLAN registration 1048MVRP multiple VLAN registration protocol 1049MWE module width encoding 1050MX mail exchange 1051NACK negative acknowledgement 1052NAK negative acknowledgement 1053NAN neighbor awareness networking 1054NAN not a number 1055NAPT Network Address Port Translation 1056NAS network attached storage 1057NAT network address translation 1058NAV network allocation vector 1059NC numerical control 1060NC-SI network controller sideband interface 1061NCO numerically-controlled oscillator 1062NCP Network Control Protocol 1063NCSI network connectivity status indicator 1064NCQ native command queuing 1065ND neighbor discovery 1066NDFA nondeterministic finite automaton 1067NDIS network driver interface specification 1068NE numeric error 1069NEWS Network extensible Window System 1070NFA nondeterministic finite automaton 1071NFC near-field communication 1072NFCI no functional change intended 1073NFS network file system 1074NFV network function virtualization 1075NHACP NABU HCCA Application Communication Protocol 1076NIA next instruction address 1077NIC network information center 1078NIC network interface card 1079NIDS network intrusion detection system 1080NIP network interface protocol 1081NIPS network intrusion prevention system 1082NIS network information service 1083NIST National Institute of Standards and Technology 1084NLS native language support 1085NMI non-maskable interrupt 1086NNTP Network News Transfer Protocol 1087NMR nonce-misuse resistance 1088NOC network operations center 1089NOP no operation 1090NOS network operating system 1091NP nondeterministic polynomial time 1092NRND not recommended for new designs 1093NRZ non-return to zero 1094NSA nation-state adversary 1095NSA no such agency 1096NSA National Security Agency 1097NTM non-deterministic Turing machine 1098NTP Network Time Protocol 1099NUMA non-uniform memory access 1100NURBS non-uniform rational basis spline 1101NVMM NetBSD Virtual Machine Monitor 1102NVMM non-volatile main memory 1103NVRAM non-volatile random access memory 1104NW not write-through 1105NX no execute 1106OAEP optimal asymmetric encryption padding 1107OAM operations, administration, and {management,maintenance} 1108OBO off by one 1109OBOE off by one error 1110OCL object constraint language 1111OCR optical character recognition 1112ODE offline device environment 1113ODI open data-link interface 1114ODM object data manager 1115ODCM on-demand clock modulation 1116ODMR on-demand mail relay 1117ODT on-die termination 1118OEM original equipment manufacturer 1119OFB output feedback 1120OFDM orthogonal frequency division multiplexing 1121OFET organic field-effect transistor 1122OLAP online analytical processing 1123OLE object linking and embedding 1124OLTP online transaction processing 1125ONFI open nand flash interface 1126OO OpenOffice 1127OO object oriented 1128OOB out of band 1129OOE out of order execution 1130OOM out of memory 1131OOO OpenOffice.org 1132OOP object oriented programming 1133OOPS object oriented programming systems 1134OOSE object oriented software engineering 1135OPM operations per minute 1136OPS operations per second 1137OQL Object Query Language 1138ORB object request broker 1139ORM object-relational mapping 1140OS operating system 1141OSD object-based storage device 1142OSD open source definition 1143OSF open software foundation 1144OSI Open Source Initiative 1145OSI open systems interconnection 1146OSPF open shortest path first 1147OSPM OS power management 1148OSS open sound system 1149OSS open source software 1150OSVW operating system visible workarounds 1151OTP one time password 1152OTP open telecom platform 1153OU organizational unit 1154OUI organizationally unique identifier 1155OWASP Open Web Application Security Project 1156OWL Web Ontology Language 1157P2P PCI to PCI 1158P2P peer to peer 1159PA phase accumulator 1160PA physical address 1161PAAS platform as a service 1162PAC phase-amplitude converter 1163PAE physical address extension 1164PAGP port aggregation protocol 1165PAL phase alternating line 1166PAL programmable array logic 1167PAM pluggable authentication modules 1168PAM pulse amplitude modulation 1169PAP password authentication protocol 1170PAT page attribute table 1171PAT port address translation 1172PATA parallel ATA 1173PAX portable archive exchange 1174PBE pending break encoding 1175PBE programming by example 1176PBR partition boot record 1177PBX private branch exchange 1178PC personal computer 1179PC program counter 1180PCB printed circuit board 1181PCB process control block 1182PCB Protocol Control Block 1183PCBC propagating cipher block chaining 1184PCC Portable C Compiler 1185PCD page-level cache disable 1186PCE path computation element 1187PCE performance-monitor counter enable 1188PCEP Path Computation Element Protocol 1189PCH platform controller hub 1190PCI peripheral component interconnect 1191PCM phase change memory 1192PCM pulse code modulation 1193PCMCIA Personal Computer Memory Card International Association 1194PCP Port Control Protocol 1195PD public domain 1196PDA personal digital assistant 1197PDA pushdown automaton 1198PDAG propositional directed acyclic graph 1199PDB power distribution board 1200PDF portable document format 1201PDM pulse-duration modulation 1202PDN pull-down network 1203PDP page {descriptor,directory} page 1204PDS product data sheet 1205PDU protocol data unit 1206PE protection enable 1207PE provider edge 1208PE portable executable 1209PEAP Protected EAP 1210PECI platform environment control interface 1211PEP protocol extension protocol 1212PER packed encoding rules 1213PFS perfect forward secrecy 1214PGAS partitioned global address space 1215PGE page global enable 1216PGO profile guided optimization 1217PGP Pretty Good Privacy 1218PHB PCI host bridge 1219PHP PHP: Hypertext Preprocessor 1220PIC performance instrumentation counters 1221PIC position independent code 1222PIC programmable interrupt controller 1223PICNIC problem in chair, not in computer 1224PID process id 1225PIE position independent executable 1226PIL Priority Interrupt Level 1227PIM personal information manager 1228PIM platform-independent model 1229PIO programmed input/output 1230PIPT physically indexed, physically tagged 1231PIQ prefetch input queue 1232PIT programmable interrupt timer 1233PIV personal identity verification 1234PIX Private Internet eXchange 1235PKCS public-key cryptography standards 1236PKI public key infrastructure 1237PLC programmable logic controller 1238PLD programmable logic device 1239PLL phase locked loop 1240PLRU pseudo LRU 1241PLT procedure linkage table 1242PLTM package level thermal management 1243PM power management 1244PM {phase,pulse} modulation 1245PMC performance monitoring counters 1246PME power management event 1247PMEG page map entry group 1248PMI performance monitoring infrastructure 1249PMI platform management interrupt 1250PMIC power management integrated circuit 1251PMIO port-mapped input/output 1252PMT photo-multiplier tube 1253PMU performance monitoring units 1254PMU power management unit 1255PNG portable network graphics 1256PNP plug and play 1257POE power over ethernet 1258POF probability of failure 1259POP Post Office Protocol 1260POP power on password 1261POR plan of record 1262POSIX Portable Operating System Interface [for Unix] 1263POST power on self test 1264POTS plain old telephone system 1265POWER Performance Optimization With Enhanced RISC 1266POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1267PP pair programming 1268PPB PCI [to] PCI bridge 1269PPC PowerPC 1270PPC Power Performance Computing 1271PPI pixels per inch 1272PPM pages per minute 1273PPP Point-to-Point Protocol 1274PPPOA Point-to-Point Protocol over ATM 1275PPPOE Point-to-Point Protocol over Ethernet 1276PPR processor programming reference 1277PPT powerpoint 1278PPT punched paper tape 1279PPU physics processing unit 1280PRAM Parameter RAM 1281PRBS pseudorandom bit sequence 1282PRG pseudorandom generator 1283PRF pseudorandom function [family] 1284PRML partial response, maximum likelihood 1285PRN pseudorandom {noise,number} 1286PRNG pseudorandom number generator 1287PROM programmable read only memory 1288PRP pseudorandom permutation 1289PRU Programmable Realtime Unit 1290PS PostScript 1291PSD power spectral density 1292PSE page size extensions 1293PSK phase shift keying 1294PSK pre-shared key 1295PSTN public switched telephone network 1296PSW program status word 1297PTE page table entry 1298PTLA pseudo top level aggregator 1299PTP page table page 1300PTV perceived target value 1301PU processing unit 1302PUC personal unblocking code 1303PUN physical unit number 1304PV physical volume 1305PVC permanent virtual circuit 1306PVG physical volume group 1307PVI protected-mode virtual interrupt 1308PVRST Per-VLAN rapid spanning tree 1309PVST Per-VLAN Spanning Tree 1310PWM pulse width modulation 1311PXE preboot execution environment 1312QA quality assurance 1313QAM quadrature amplitude modulation 1314QAM quality assurance management 1315QBE query by example 1316QC quality control 1317QDI quasi delay insensitive 1318QCIF quarter common intermediate format 1319QOI quality of implementation 1320QOI quick order interface 1321QOS quality of service 1322QVL qualified vendor list 1323R/O read only 1324R/W read/write 1325RA receiver address 1326RA remote assistance 1327RA resource affinity 1328RA router advertisement 1329RAD rapid application development 1330RADIUS remote authentication dial-in user service 1331RAID redundant array of {independent,inexpensive} disks 1332RAII resource acquisition is initialization 1333RAM random access memory 1334RAS reliability, availability and serviceability 1335RAS remote access service 1336RAS restartable atomic sequence 1337RAS row address strobe 1338RBF radial basis function 1339RBNF routing backus-naur form 1340RBT red-black tree 1341RC release candidate 1342RC remote control 1343RC run commands 1344RCS Revision Control System 1345RCU read, copy, update 1346RDB Rigid Disk Block 1347RDBMS relational database management system 1348RDF Resource Description Framework 1349RDM relational data model 1350RDMA remote direct memory access 1351RDP remote desktop protocol 1352RDRAM Rambus DRAM 1353RE regular expression 1354REPL read, evaluate, print, loop 1355REST representational state transfer 1356RF radio frequency 1357RFB remote frame buffer 1358RFI radio frequency interference 1359RFO request for ownership 1360RFU reserved for future use 1361RGB red green blue 1362RGBA red green blue alpha 1363RGMII reduced gigabit media independent interface 1364RH read hit 1365RHEL Red Hat Enterprise Linux 1366RHL Red Hat Linux 1367RIB routing information base 1368RIFF Resource Interchange File Format 1369RIP Raster Image Processor 1370RIP Routing Information Protocol 1371RIR regional Internet registry 1372RISC reduced instruction set {computer,computing} 1373RKM ROM Kernel Manual 1374RLE run length encoding 1375RLL run length limited 1376RLO right-to-left override 1377RM read miss 1378RMCP Remote Management Control Protocol 1379RMI remote method invocation 1380RMO Relaxed Memory Ordering 1381RMPM rapid memory power management 1382RMS root mean square 1383RMW read, modify, write 1384RNG random number generator 1385ROM read only memory 1386ROP return-oriented programming 1387RPC remote procedure call 1388RPG Report Program Generator 1389RPKI resource PKI 1390RPL requested privilege level 1391RPM revolutions per minute 1392RPN reverse Polish notation 1393RPVST Rapid Per-VLAN Spanning Tree 1394RR random replacement 1395RR round robin 1396RS relay station 1397RSA Rivest, Shamir, [and] Adleman 1398RSIP Realm Specific IP 1399RSN Robust Secure Network 1400RSS really simple syndication 1401RSS Receive Side Scaling 1402RSS residual sum of squares 1403RSTP Rapid Spanning Tree Protocol 1404RT real time 1405RTC real time clock 1406RTC real time computing 1407RTF rich text format 1408RTL register transfer language 1409RTL resistor-transistor logic 1410RTL right to left 1411RTOS real time operating system 1412RTP Real-time Transport Protocol 1413RTS request to send 1414RTT round trip time 1415RUP rational unified process 1416RW Rabin-Williams 1417RWM read-write memory 1418RX {receive,receiver} 1419S/PDIF Sony/Philips Digital Interface Format 1420SA security advisory 1421SA security association 1422SA source address 1423SA structured analysis 1424SAAS software as a service 1425SABRE Semi-automated business research environment 1426SACD super audio compact disc 1427SAD security association database 1428SAF-TE SCSI accessed fault-tolerant enclosure 1429SAGE Semi-automated ground environment 1430SAL {service,system} abstraction layer 1431SAM serial access memory 1432SAM sum addressed memory 1433SAML security assertion markup language 1434SAN storage area network 1435SAP service access point 1436SAPIC streamlined advanced programmable interrupt controller 1437SASD structured analysis, structured design 1438SASI Shugart Associates System Interface 1439SASL simple authentication [and] security layer 1440SATA serial advanced technology attachment 1441SAX simple API for XML 1442SB sound blaster 1443SBSA server base system architecture 1444SBU standard build unit 1445SC store conditional 1446SCA source code analyzer 1447SCADA supervisory control and data acquisition 1448SCC single chip cloud 1449SCC source code control 1450SCCP skinny call control protocol 1451SCCS Source Code Control System 1452SCI scalable coherent interface 1453SCI system control interrupt 1454SCIM smart common input method 1455SCM software configuration management 1456SCM source code management 1457SCM storage-class memory 1458SCO synchronous connection orientated 1459SCP secure copy 1460SCP system control processor 1461SCPI system control and power interface 1462SCSI Small Computer System Interface 1463SCTP Stream Control Transmission Protocol 1464SDDC software defined data center 1465SDEI software delegated exception interface 1466SDI symbol deinterleave 1467SDK software development kit 1468SDL Simple Declarative Language 1469SDL Simple Direct-media Layer 1470SDLC {software,system,systems} development life cycle 1471SDN software defined networking 1472SDP Session Description Protocol 1473SDR software defined radio 1474SDRAM synchronous dynamic random access memory 1475SDS software defined storage 1476SDT syntax-directed translation 1477SEA synchronous external abort 1478SEGV segmentation violation 1479SED self-encrypting drive 1480SED stream editor 1481SEMB serial ATA enclosure management bridge 1482SEO search engine optimization 1483SES SCSI enclosure services 1484SFC sequential function chart 1485SFI simple firmware interface 1486SFI software fault isolation 1487SFTP SSH File Transfer Protocol 1488SFTP Serial File Transfer Protocol 1489SFTP Simple File Transfer Protocol 1490SGI Silicon Graphics, Inc 1491SGI software generated interrupt 1492SGMII serial gigabit media independent interface 1493SGPIO serial general purpose input/output 1494SGRAM synchronous graphics random access memory 1495SHA secure hash algorithm 1496SICP structure and interpretation of computer programs 1497SIDH supersingular isogeny Diffie-Hellman 1498SIEM security information and event management 1499SIF source input format 1500SIFS short inter-frame space 1501SIM subscriber identity module 1502SIMD single instruction, multiple data 1503SIMM single inline memory module 1504SIP Session Initiation Protocol 1505SIR signal-to-interference ratio 1506SIR slow infrared 1507SISD single instruction, single data 1508SIV synthetic intialization vector 1509SLAAC stateless address auto-configuration 1510SLC single-level cell 1511SLDRAM synchronous-link dynamic random access memory 1512SLED single large expensive disk 1513SLI scalable link interface 1514SLI scan-line interleave 1515SLIC system license internal code 1516SLOC source lines of code 1517SLRU segmented LRU 1518SMA smart memory access 1519SMAF system management action field 1520SMAP Simple Mail Access Protocol 1521SMAP supervisor mode access prevention 1522SMART self-monitoring analysis and reporting technology 1523SMB Server Message Block 1524SMB system management bus 1525SMBIOS System Management BIOS 1526SMC system management controller 1527SMD storage module device 1528SMEP supervisor mode execution protection 1529SMF single mode fiber 1530SMI structure of management information 1531SMI system management interrupt 1532SMM system management mode 1533SMP serial management protocol 1534SMP symmetric multiprocessing 1535SMR shingled magnetic recording 1536SMR state machine replication 1537SMT simultaneous multithreading 1538SMTP Simple Mail Transfer Protocol 1539SMU system management unit 1540SNA systems network architecture 1541SNAP Sub-Network Access Protocol 1542SNIA Storage Networking Industry Association 1543SNMP Simple Network Management Protocol 1544SNR signal-to-noise ratio 1545SOA service oriented architecture 1546SOAP Simple Object Access Protocol 1547SOC system on chip 1548SOF start of frame 1549SOH start of header 1550SOHO small office/home office 1551SOL serial over LAN 1552SOM system on module 1553SP service pack 1554SP stack pointer 1555SPA storage pool allocator 1556SPAN switched port analyzer 1557SPARC scalable processor architecture 1558SPARQL SPARQL Protocol and RDF Query Language 1559SPD security policy database 1560SPD serial presence detect 1561SPDIF Sony/Philips digital interface format 1562SPI serial peripheral interface 1563SPI stateful packet inspection 1564SPL system interrupt priority level 1565SPL spinlock 1566SPMD single process, multiple data 1567SPR special purpose register 1568SPT sectors per track 1569SQA software quality assurance 1570SQCIF sub quarter common intermediate format 1571SQL Structured Query Language 1572SRAM static random access memory 1573SRC sample rate conversion 1574SRP SCSI RDMA protocol 1575SRR shaped round robin 1576SRTP Secure Real-time Transport Protocol 1577SS self-snoop 1578SS stack segment 1579SSA static single assignment 1580SSAP source service access point 1581SSB single-sideband modulation 1582SSC spread spectrum clock 1583SSD solid state drive 1584SSE streaming SIMD extensions 1585SSFDC solid state floppy disc card 1586SSH secure shell 1587SSI server side includes 1588SSID service set identifier 1589SSTP secure socket tunneling protocol 1590SSL secure sockets layer 1591SSP stack smashing protection 1592STC software thermal control 1593STD state transition diagram 1594STM software transactional memory 1595STOMP Streaming Text Oriented Messaging Protocol 1596STP Spanning Tree Protocol 1597STP shielded twisted pair 1598STRG spanning tree root guard 1599SUN Stanford University Network 1600SUS Single Unix Specification 1601SUT system under test 1602SVC switched virtual circuit 1603SVG scalable vector graphics 1604SVGA Super Video Graphics Array 1605SVI {switch,switched} virtual interface 1606SVM secure virtual machine 1607SVM support vector machine 1608SVR System V Release 1609SVS Separate Virtual Space 1610SWF Shockwave Flash 1611SWIG simplified wrapper [and] interface generator 1612SYR symbol timing recovery 1613TA test assertion 1614TA transmitter address 1615TACACS terminal access controller access-control system 1616TAI international atomic time 1617TAO track at once 1618TAOCP The Art of Computer Programming 1619TAP Test Anything Protocol 1620TAS test and set 1621TB terabyte 1622TBNF transitional backus-naur form 1623TCB trace capture buffer 1624TCB trusted computing base 1625TCC thermal control circuit 1626TCL tool command language 1627TCP Transmission Control Protocol 1628TCQ tagged command queueing 1629TDC time [to] digital converter 1630TDD test-driven development 1631TDD time division duplex 1632TDM time division multiplexing 1633TDMA time division multiple access 1634TDOA time difference of arrival 1635TDP thermal design {point,power} 1636TDR time-domain reflectometry 1637TECO Text Editor and Corrector 1638TEE Trusted Execution Environment 1639TFT thin film transistor 1640TFTP Trivial File Transfer Protocol 1641TIAS try it and see 1642TIFF tagged image file format 1643TITS try it to see 1644TK temporal key 1645TKIP Temporal Key Integrity Protocol 1646TLA top level aggregator 1647TLB translation lookaside buffer 1648TLD top level domain 1649TLER time-limited error recovery 1650TLI transport layer interface 1651TLS thread local storage 1652TLS transport layer security 1653TM Turing machine 1654TM thermal monitor 1655TMG transmogrifier 1656TMDS transition minimized differential signaling 1657TMO timeout 1658TOD time of day 1659TOE TCP offload engine 1660TOFU trust on first use 1661TOS terms of service 1662TOS trusted operating system 1663TOS type of service 1664TOTP time-based one time password 1665TP transaction processing 1666TPI tracks per inch 1667TPM transactions per minute 1668TPM trusted platform module 1669TPR task priority register 1670TPS transactions per second 1671TPS transmission parameters signaling 1672TR task register 1673TR token ring 1674TRL timing recovery loop 1675TRNG true random number generator 1676TS terminal services 1677TS time series 1678TS time stamp 1679TS transport stream 1680TSAN Thread Sanitizer 1681TSC time stamp counter 1682TSD time stamp disable 1683TSDB time series database 1684TSL test, set, lock 1685TSO time sharing option 1686TSO TCP segmentation offload 1687TSO Total Store Ordering 1688TSP Time-Stamp Protocol 1689TSP Tunnel Setup Protocol 1690TSP time synchronization protocol 1691TSP traveling salesman problem 1692TSS task state segment 1693TSV tab-separated values 1694TTL time to live 1695TTL transistor-transistor logic 1696TTM translation table maps 1697TTY teletype 1698TU translation unit 1699TUI {terminal,text-based,textual} user interface 1700TX {transmit out,transmitter} 1701TXG transaction group 1702TZ time zone 1703UAC user {access,account} control 1704UAF use-after-free 1705UART universal asynchronous receiver/transmitter 1706UAT user acceptance testing 1707UB undefined behavior 1708UBSAN Undefined Behavior Sanitizer 1709UC uncacheable 1710UCS uniform-cost search 1711UCS unified computing system 1712UCS universal coded character set 1713UDI uniform driver interface 1714UDMA ultra DMA 1715UDO ultra density optical 1716UDP User Datagram Protocol 1717UEFI unified extensible firmware interface 1718UFO UDP fragmentation offload 1719UFS Unix File System 1720UGA universal graphics adapter 1721UI unit interval 1722UI user interface 1723UICC universal integrated circuit card 1724UID unique identifier 1725UID user identifier 1726UL upload 1727UMA uniform memory access 1728UMA upper memory area 1729UMB upper memory block 1730UML unified modeling language 1731UMPC ultra-mobile PC 1732UPNP universal plug and play 1733UPS uninterruptible power supply 1734URI uniform resource identifier 1735URL uniform resource locator 1736URN uniform resource name 1737USART universal synchronous/asynchronous receiver/transmitter 1738USB universal serial bus 1739USWC uncacheable speculative write combining 1740UT unit test 1741UTC coordinated universal time 1742UTF unicode transformation formats 1743UTP unshielded twisted pair 1744UTS UNIX time-sharing 1745UUCP Unix-to-Unix Copy Protocol 1746UUID universally unique identifier 1747UUOC useless use of cat 1748UUT unit under test 1749UX user experience 1750VA vertical alignment 1751VA virtual address 1752VA volt-ampere 1753VAX virtual address extension 1754VB Visual Basic 1755VBR volume boot record 1756VCA variable-gain amplifier 1757VCC common collector voltage 1758VCCP virtual chassis control protocol 1759VCF voltage-controlled filter 1760VCM virtual channel memory 1761VCO voltage-controlled oscillator 1762VCP virtual chassis port 1763VCS version control system 1764VDPAU Video Decode and Presentation API for Unix 1765VES virtual execution system 1766VESA Video Electronics Standards Association 1767VFO variable-frequency oscillator 1768VFS virtual file system 1769VG volume group 1770VGA Video Graphics Array 1771VHDCI very high density cable interconnect 1772VID {VLAN,voltage level} identifier 1773VIM Vi IMproved 1774VIPT virtually indexed, physically tagged 1775VIVT virtually indexed, virtually tagged 1776VLAN virtual local area network 1777VLD variable-length decoding 1778VLIW very long instruction word 1779VLSI very large scale integration 1780VLSM variable length subnet mask 1781VM virtual {machine,memory} 1782VME virtual mode extension 1783VMX vector multimedia extensions 1784VMX virtual machine extensions 1785VNC virtual network computing 1786VOD video on demand 1787VPD vital product data 1788VPN virtual private network 1789VPWS virtual private wire service 1790VR virtual reality 1791VRAM video random access memory 1792VRF virtual routing and forwarding 1793VRM voltage regulator module 1794VROC Virtual RAID On CPU 1795VRRP Virtual Router Redundancy Protocol 1796VSTP VLAN Spanning Tree Protocol 1797VTP VLAN Trunking Protocol 1798VXFS Veritas file system 1799VXVM Veritas volume manager 1800W watt 1801W3C World Wide Web Consortium 1802WAFL write anywhere file layout 1803WAMP Web Application Messaging Protocol 1804WAN wide area network 1805WAP Wireless Application Protocol 1806WAP wireless access point 1807WDM Windows Driver Model 1808WDDM Windows Display Driver Model 1809WDT watchdog timer 1810WEP Wired Equivalent Privacy 1811WFI wait for interrupt 1812WFQ weighted fair queuing 1813WH write hit 1814WHEA Windows hardware error architecture 1815WIFI wireless fidelity 1816WLAN wireless local area network 1817WM write miss 1818WMF Windows meta file 1819WMI Windows Management Instrumentation 1820WOL Wake-on-LAN 1821WOM Wake-on-Modem 1822WOR Wake-on-Ring 1823WORM write once read many 1824WP WordPerfect 1825WP word processor 1826WP write protect 1827WPA Wi-Fi Protected Access 1828WPA2 Wi-Fi Protected Access II 1829WPAD web proxy auto-discovery protocol 1830WPS Wi-Fi Protected Setup 1831WRAM window random access memory 1832WS web services 1833WTC write through caching 1834WTD weighted tail drop 1835WWAN wireless wide area network 1836WWW world wide web 1837WYSIAYG what you see is all you get 1838WYSIWYG what you see is what you get 1839XBAR crossbar 1840XDMCP X Display Manager control protocol 1841XER XML encoding rules 1842XGA Extended Graphics Array 1843XHR XMLHttpRequest 1844XIP execute in place 1845XML Extensible Markup Language 1846XNA XNA's not acronymed 1847XNS Xerox network systems 1848XOR exclusive or 1849XP extreme programming 1850XSI X/Open System Interface 1851XSL extensible stylesheet language 1852XSLT extensible stylesheet language transformations 1853XSS cross site scripting 1854XT extended technology 1855XTACACS extended terminal access controller access-control system 1856XTI X/Open transport interface 1857XUL XML user interface language 1858YACC yet another compiler compiler 1859YAML YAML ain't markup language 1860YANG yet another next generation 1861YAWPFAPR you are welcome; please file a problem report 1862YP Yellow Pages 1863YTD year to date 1864ZAP ZFS attribute processor 1865ZBR zone bit recording 1866ZFOD zero-filled on demand 1867ZFS zettabyte file system 1868ZIF zero insertion force 1869ZIFS zero insertion force socket 1870ZIL ZFS intent log 1871ZMA zone multicast address 1872ZOI zero one infinity 1873ZOI zone of influence 1874ZPL ZFS Posix layer 1875ZVOL ZFS Volume 1876