acronyms.comp revision 1.361
1$NetBSD: acronyms.comp,v 1.361 2023/08/28 15:50:17 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 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 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APFS Apple file system 72API application programming interface 73APEI ACPI platform error interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APU accelerated processing unit 79APT advanced persistent threat 80AQM active queue management 81ARAT always running APIC timer 82ARC adaptive replacement cache 83ARC Advanced RISC Computing 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR address space register 108ASR Apple software restore 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMP basic multilingual plane 163BMP bitmap image file 164BMIC bus master interface controller 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTC bit test [and] complement 201BTM bus transport mechanism 202BTR bit test [and] reset 203BTS bit test [and] set 204BTS bug tracking system 205BW bandwidth 206BWM block-write mode 207BUAG big ugly ASCII graphic 208CA certificate authority 209CAC cryptographic access control 210CACLS change access control lists 211CAD computer-aided design 212CAM computer assisted manufacturing 213CAM conditional access module 214CAM content addressable memory 215CARP Common Address Redundancy Protocol 216CAS column address strobe 217CAS compare and swap 218CAS computer algebra system 219CASE computer aided software engineering 220CAU control access unit 221CAV constant angular velocity 222CBC cipher block chaining 223CBR constant bit rate 224CC carbon copy 225CCC Chaos Computer Club 226CCD charge coupled device 227CCI co-channel interferer 228CCNUMA cache-coherent non-uniform memory access 229CCTL command completion time limit 230CD cache disable 231CD compact disc 232CDDA compact disc digital audio 233CDL compiler description language 234CDMA code division multiple access 235CDN content delivery network 236CDP Cisco Discovery Protocol 237CDRAM cache dynamic random access memory 238CER canonical encoding rules 239CE customer edge 240CF compact flash 241CFB cipher feedback 242CFG context-free grammar 243CFG control-flow graph 244CFI control-flow integrity 245CG control gate 246CGA Color Graphics Adapter 247CGI common gateway interface 248CGN Carrier-Grade NAT 249CHAP Challenge-Handshake Authentication Protocol 250CHFS chip file system 251CHS cylinder/head/sector 252CI continuous integration 253CI {common,component} interface 254CIA confidentiality, integrity, availability 255CIDR Classless Inter-Domain Routing 256CIF common intermediate format 257CIFS Common Internet File System 258CIL common intermediate language 259CIR carrier-to-interference ratio 260CIS contact image sensor 261CISC complex instruction set {computer,computing} 262CJK Chinese, Japanese, [and] Korean 263CLF common log format 264CLI command line interface 265CLI common language infrastructure 266CLR common language runtime 267CLS common language specification 268CLTT closed loop thermal throttling 269CLUT color look-up table 270CLV constant linear velocity 271CM configuration management 272CMA concert multithread architecture 273CMC chassis management controller 274CMC corrected machine check 275CMC certificate management over CMS 276CMS {configuration,content,course} management system 277CMS cryptographic message syntax 278CMI control {management,method} interface 279CMOS complementary metal-oxide-semiconductor 280CMP chip multi-processing 281CMS content management system 282CMYK cyan magenta yellow black 283CN {common,canonical} name 284CNA CVE Numbering Authority 285CNC computer numerical control 286CNR carrier-to-noise ratio 287COA change of authority 288COF current operating frequency 289COFDM coded orthogonal frequency division multiplexing 290COFF common object file format 291COM component object model 292COM computer on module 293COMA cache-only memory architecture 294CORBA common object request broker architecture 295COS class of service 296COW copy-on-write 297CP continuous pilot 298CPA chosen-plaintext attack 299CPB core performance boost 300CPC central processor complex 301CPC cpu performance counters 302CPE common phase error 303CPE common platform enumeration 304CPER common platform error record 305CPG clock pulse generator 306CPI cycles per instruction 307CPL current privilege level 308CPLD complex programmable logic device 309CPP C preprocessor 310CPS characters per second 311CPS continuation-passing style 312CPT command pass through 313CPU central processing unit 314CR carriage return 315CRC cyclic redundancy check 316CRDT conflict-free replicated data type 317CRL carrier recovery loop 318CRLF carriage return line feed 319CSPM cloud security posture management 320CSU C start up 321CRT cathode ray tube 322CRTP curiously recurring template pattern 323CRUD create, read, update, and delete 324CS cable select 325CS chip select 326CS code segment 327CS computer science 328CSDL {common,conceptual} schema definition language 329CSI channel state information 330CSI common system interface 331CSMA carrier sense multiple access 332CSMA/CA carrier sense multiple access with collision avoidance 333CSMA/CD carrier sense multiple access with collision detection 334CSP communicating sequential processes 335CSP content security policy 336CSP constrain satisfaction problems 337CSP cryptographic service provider 338CSR control [and] status registers 339CSRG Computer Systems Research Group 340CSS cascading style sheets 341CST common spanning tree 342CSV comma-separated values 343CTF compact c type format 344CTM close to metal 345CTR counter [mode] 346CTS clear to send 347CTS common type system 348CUA common user access 349CUT coordinated universal time 350CV control voltage 351CVE common vulnerabilities and exposures 352CVS Concurrent Versions System 353DA destination address 354DAA distributed application architecture 355DAAP digital audio access protocol 356DAB digital audio broadcasting 357DAC digital [to] analog converter 358DAC discretionary access control 359DAD duplicate address detection 360DANE DNS-based Authentication of Named Entities 361DAO disk at once 362DAP Directory Access Protocol 363DAT digital audio tape 364DAT dynamic acceleration technology 365DB database 366DBA database administrator 367DBA dynamic bandwidth allocation 368DBB data bus buffer 369DBC design by contract 370DBL dynamic buffer limiting 371DBMS database management system 372DBS database server 373DC data center 374DC direct current 375DCC Direct Client-to-Client 376DCC direct cable connect 377DCD data carrier detect 378DCE data control equipment 379DCE distributed computing environment 380DCIM data center infrastructure management 381DCIM digital camera images 382DCL Digital Command Language 383DCOM distributed component object model 384DCOP Desktop COmmunication Protocol 385DCS data collection systems 386DCT discrete cosine transform 387DCU data cache unit 388DDC display data channel 389DDE dynamic data exchange 390DDI device drivers interface 391DDK device driver kit 392DDL data description language 393DDR double data rate 394DDS direct digital sound 395DDWG Digital Display Working Group 396DE debugging extensions 397DE desktop environment 398DEA data encryption algorithm 399DEC Digital Equipment Corporation 400DEK data encryption key 401DEP data execution prevention 402DER distinguished encoding rules 403DES Data Encryption Standard 404DF don't fragment 405DFA deterministic finite automaton 406DFC data flow control 407DFS depth first search 408DFS distributed file system 409DFSAN Data Flow Sanitizer 410DFT diagnostic function test 411DFT discrete Fourier transform 412DGL data generation language 413DGEMM double precision general matrix multiply 414DH Diffie-Hellman 415DHCP Dynamic Host Configuration Protocol 416DIA dedicated Internet access 417DIB device independent bitmap 418DIFS distributed inter-frame space 419DIMM dual inline memory module 420DIRT design in real time 421DKI driver/kernel interface 422DL diode logic 423DL discrete logarithm 424DL download 425DLCI data link connection identifier 426DLE data link escape 427DLL dynamic link library 428DLNA digital living network alliance 429DLP discrete logarithm problem 430DMA direct memory access 431DMI desktop management interface 432DMS document management system 433DMT discrete multitone modulation 434DMU data management layer 435DNARD Digital network appliance reference design 436DND drag and drop 437DNLC directory name lookup cache 438DNS Domain Name System 439DNSBL Domain Name System Block List 440DNSSEC DNS Security Extensions 441DOE distributed object environment 442DOF data over fibre 443DOM document object model 444DOS denial of service 445DOS disk operating system 446DP DisplayPort 447DPAA data path acceleration architecture 448DPC deferred procedure call 449DPCM differential pulse code modulation 450DPD dead peer detection 451DPDK data plane development kit 452DPI deep packet inspection 453DPI dots per inch 454DPL descriptor privilege level 455DPS Display PostScript 456DPST display power savings technology 457DRAAS disaster recovery as a service 458DRAM dynamic random access memory 459DRBG deterministic random bit generator 460DRI direct rendering infrastructure 461DRM digital rights management 462DRM direct rendering manager 463DRRS display refresh rate switching 464DS debug store 465DS differentiated services 466DS9000 DeathStation 9000 467DS9K DeathStation 9000 468DSA digital signature algorithm 469DSAP destination service access point 470DSB double-sideband modulation 471DSCP differentiated services code point 472DSDT differentiated system descriptor table 473DSF device special file 474DSL dataset and snapshot layer 475DSL digital subscriber line 476DSL domain specific language 477DSLAM digital subscriber line access multiplexer 478DSN delivery status notification 479DSO dynamic shared object 480DSP digital signal processor 481DSSS direct sequence spread spectrum 482DTB device tree blob 483DTC device tree compiler 484DTD document type definition 485DTE data terminal equipment 486DTE dumb terminal emulator 487DTL diode-transistor logic 488DTLS datagram transport layer security 489DTS device tree source 490DTS digital thermal sensor 491DUT device under test 492DVB digital video broadcasting 493DVCS distributed version control system 494DVD digital versatile disc 495DVFS dynamic voltage and frequency scaling 496DVI device independent 497DVI Digital Visual Interface 498DVR digital video recorder 499DWARF Debugging With Attributed Record Formats 500E-XER extended XML encoding rules 501EABI embedded-application binary interface 502EAI Email Address Internationalization 503EAI Enterprise Application Integration 504EAP Extensible Authentication Protocol 505EAPOL EAP over Lan 506EAV entity-attribute-value model 507EAV ethernet audio/video bridging 508EBCDIC Extended Binary Coded Decimal Interchange Code 509EBDA Extended BIOS Data Area 510EBNF extended backus-naur form 511EBR extended boot record 512EC elliptic curve 513ECC elliptic curve cryptography 514ECC error correction code 515ECDH elliptic curve Diffie-Hellman 516ECDL elliptic curve discrete logarithm 517ECDLP elliptic curve discrete logarithm problem 518ECDSA elliptic curve digital signature algorithm 519ECL emitter-coupled logic 520ECN explicit congestion notification 521ECP enhanced capability port 522ECS enhanced chip set 523ECS extended configuration space 524EDAC error detection and correction 525EDAT enhanced dynamic acceleration technology 526EdDSA Edwards curve digital signature algorithm 527EDGE explicit data graph execution 528EDID extended display identification data 529EDO extended data out 530EDS electronical data sheet 531EDSAC electronic delay storage automatic calculator 532EDVAC electronic discrete variable automatic computer 533EEE energy efficient ethernet 534EEE embrace, extend, extinguish 535EEPROM electrically erasable programmable read only memory 536EFI extensible firmware interface 537EFL emitter follower logic 538EFM eight to fourteen modulation 539EFS extent file system 540EGA Enhanced Graphics Adapter 541EGP exterior gateway protocol 542EH extension header 543EIDE enhanced IDE 544EISA extended industry standard architecture 545EINJ error injection table 546ELF executable and linking format 547ELS entry level system 548EMI electro-magnetic interference 549EMP electro-magnetic pulse 550EMR electro-magnetic radiation 551EMACS Editor MACroS 552ENIAC electronic numerical integrator and computer 553EOF end of file 554EOI end of interrupt 555EOIS end of interactive support 556EOL end of life 557EOL end of line 558EOT end of transmission 559EPIC explicitly parallel instruction computing 560EPP enhanced parallel port 561EPRML extended partial response, maximum likelihood 562EPROM erasable programmable read only memory 563EPT extended page tables 564ERC error recovery control 565ERD emergency recovery disk 566ERD entity relationship diagram 567ERE extended regular expression 568ERST error record serialization table 569ESAN Efficiency Sanitizer 570ESB enterprise service bus 571ESDI enhanced small disk interface 572ESDRAM enhanced synchronous dynamic random access memory 573ESI enclosure services interface 574ESS electronic switching system 575ESS extended service set 576ESSID extended service set identifier 577EST enhanced speedstep 578ETL extract, transform, load 579EU execution unit 580EULA end user license agreement 581FAT file allocation table 582FBRAM frame buffer random access memory 583FCIF full common intermediate format 584FCL fiber channel loop 585FCS frame check sequence 586FDC floppy disk controller 587FDD floppy disk drive 588FDDI fiber distributed data interface 589FDE full disk encryption 590FDT flattened device tree 591FEA finite element analysis 592FEC forward error correction 593FET field-effect transistor 594FF finite field 595FF form feed 596FFDH finite-field Diffie-Hellman 597FFH functional fixed hardware 598FFI foreign function interface 599FFM focus follows mouse 600FFS Fast File System 601FFS find first set 602FFT fast Fourier transform 603FG floating gate 604FHRP first hop redundancy protocol 605FHSS frequency hop spread spectrum 606FID frequency identifier 607FIFO first in, first out 608FILO first in, last out 609FIPS Federal Information Processing Standards 610FIR fast infrared 611FLOPS floating [point] operations per second 612FLOSS free/libre/open source software 613FM frequency modulation 614FMR false match rate 615FOSS free/open source software 616FPGA field programmable gate array 617FPM fast page mode 618FPR floating point register 619FPU floating point unit 620FQDN fully qualified domain name 621FRR false rejection rate 622FRU field replaceable unit 623FS file system 624FSB front side bus 625FSCK file system check 626FSF Free Software Foundation 627FSK frequency shift keying 628FSM finite-state machine 629FTA fault tree analysis 630FTL flash translation layer 631FTP File Transfer Protocol 632FTPS File Transfer Protocol Secure 633FTTH fiber to the home 634FUS fast user switching 635FWH firmware hub 636FWS folding white space 637GAL generic array logic 638GARP generic attribute registration protocol 639GAS generic address structure 640GC garbage collector 641GCC GNU Compiler Collection 642GCM Galois counter mode 643GCR group-coded recording 644GDI Graphics Device Interface 645GDT global descriptor table 646GECOS general comprehensive operating supervisor 647GEM graphics environment manager 648GEM graphics execution manager 649GEMM general matrix multiply 650GENA general event notification architecture 651GHC Glasgow Haskell compiler 652GHES generic hardware error source 653GIC generic interrupt controller 654GID group identifier 655GIF graphics interchange format 656GLBP gateway load balancing protocol 657GMCH graphics and memory controller hub 658GNU GNU's Not Unix 659GOP graphics output protocol 660GOT global offset table 661GPE general purpose event 662GPF general protection fault 663GPG GNU Privacy Guard 664GPL [GNU] General Public License 665GPR general purpose register 666GPS generalized processor sharing 667GPT GUID partition table 668GPU graphics processing unit 669GR golden ratio 670GRE generic routing encapsulation 671GRO generic receive offload 672GSI global system interrupt 673GSO generic send offload 674GUI graphical user interface 675GUID globally unique identifier 676GUS Gravis UltraSound 677GVFS git virtual file system 678HA high availability 679HAL hardware abstraction layer 680HAT hashed array tree 681HATEOAS hypermedia as the engine of application state 682HBA host bus adapter 683HCC Home Cable Computer 684HCCA Home Cable Computer Adaptor 685HCF halt and catch fire 686HCI host controller interface 687HCI human-computer interaction 688HCL hardware compatibility list 689HDCP High-bandwidth Digital Content Protection 690HDD hard disk drive 691HDL hardware description language 692HDMI High-Definition Multimedia Interface 693HDTV high-definition television 694HECI host embedded controller interface 695HEST hardware error source table 696HEVC high efficiency video coding 697HF high frequency 698HFM highest frequency mode 699HFS hierarchical file system 700HID human interface device 701HKDF HMAC-based key derivation function 702HKP HTTP Keyserver Protocol 703HLL high-level language 704HMA high memory area 705HMI human-machine interface 706HOOD hierarchical object oriented design 707HOTP HMAC-based one time password 708HP Hewlett-Packard 709HPC high performance computing 710HPD hot plug detection 711HPET high precision event timer 712HSM hardware security module 713HSM hierarchical storage management 714HSRP hot standby router protocol 715HT hyper-threading 716HTC hardware thermal control 717HTCC high temperature co-fired ceramic 718HTML HyperText Markup Language 719HTT hyper-threading technology 720HTTP Hypertext Transfer Protocol 721HTTPS Hypertext Transfer Protocol Secure 722HVM hardware virtual machine 723HVDS High-Voltage Differential Signaling 724HWASAN Hardware-assisted Address Sanitizer 725HZ Hertz 726I2O intelligent input/output 727IA information assurance 728IAAS infrastructure as a service 729IANA Internet Assigned Numbers Authority 730IAB Internet Architecture Board 731IBC iterated block cipher 732IBM International Business Machines 733IBPI international blinking pattern interpretation 734IBS instruction based sampling 735IBSS independent basic service set 736IC integrated circuit 737ICA independent computer architecture 738ICACLS integrity control access control lists 739ICB Internet Citizen's Band 740ICE in-circuit emulator 741ICE internal compiler error 742ICH I/O controller hub 743ICMP Internet Control Message Protocol 744ICT information and communications technology 745ICW initialization command word 746IDA Intel dynamic acceleration 747IDCMP Intuition direct communication message port 748IDCT inverse discrete cosine transform 749IDE integrated development environment 750IDE integrated drive electronics 751IDPS intrusion detection [and] prevention system 752IDRP inter-domain routing protocol 753IDS intrusion detection system 754IDT interrupt descriptor table 755IE Internet Explorer 756IEC International Electrotechnical Commission 757IEEE Institute of Electrical and Electronics Engineers 758IESG Internet Engineering Steering Group 759IETF Internet Engineering Task Force 760IF intermediate frequency 761IFCM isochronous flow control mode 762IFF Interchange File Format 763IFS internal field separator 764IGD Internet gateway device 765IGMP Internet Group Management Protocol 766IGP interior gateway protocol 767IHV independent hardware vendor 768IKE Internet key exchange 769ILM internal loopback mode 770ILOM integrated lights-out management 771ILP instruction level parallelism 772IM instant messaging 773IME input method editor 774IMAP Internet Message Access Protocol 775IMC integrated memory controller 776IMCR interrupt mode configuration register 777IMR interrupt mask register 778IMS information management system 779IMSI international mobile subscriber identity 780INCITS InterNational Committee for Information Technology Standards 781INODE index node 782IO input/output 783IOCTL input/output control 784IOM input/output managers 785IOMMU input/output memory management unit 786IOT Internet of Things 787IP Internet Protocol 788IP intellectual property 789IPC instructions per cycle 790IPC interprocess communication 791IPCF interprocess communication facility 792IPE integrated programming environment 793IPI intelligent peripheral interface 794IPI interprocessor interrupt 795IPL Initial Program Load 796IPL Interrupt Priority Level 797IPMB Intelligent Platform Management Bus 798IPMI Intelligent Platform Management Interface 799IPNG Internet Protocol, Next Generation 800IPS in-plane switching 801IPS intrusion prevention system 802IPSEC Internet Protocol Security 803IRC Internet Relay Chat 804IRDA infrared data association 805IRDP ICMP Router Discovery Protocol 806IR intermediate representation 807IRQ interrupt request 808IRQL interrupt request level 809IRR interrupt request register 810IRTF Internet Research Task Force 811IS information system 812ISA industry standard architecture 813ISA instruction set architecture 814ISE instant secure erase 815ISDN integrated services digital network 816ISI inter-symbol interference 817ISL initial system load 818ISM industrial, scientific, [and] medical 819ISMS information system management system 820ISN initial serial number 821ISO International Standards Organization 822ISOC Internet Society 823ISP Internet service provider 824ISR in-service register 825ISR interrupt service routine 826IST internal spanning tree 827IST interrupt stack table 828ISV independent software vendor 829IT information technology 830ITB Intel Turbo Boost 831ITIL information technology infrastructure library 832ITP in-target probe 833ITSM IT service management 834IV initialization vector 835IVT interrupt vector table 836JBOD just a bunch of disks 837JCL Job Control Language 838JFET junction [gate] field-effect transistor 839JIT just in time 840JPEG Joint Photographic Experts Group 841JRE Java Runtime Environment 842JSON JavaScript Object Notation 843JTAG joint test action group 844KASAN Kernel Address Sanitizer 845KASLR kernel address space layout randomization 846KB keyboard 847KB kilobyte 848KBD keyboard 849KBD kilobaud 850KCS keyboard controller style 851KEM key encapsulation mechanism 852KLOC thousand lines of code 853KMS kernel-mode setting 854KPI kernel programming interface 855KVA kernel virtual address 856KVM kernel virtual machine 857KVM kernel virtual memory 858KVM keyboard, video, [and] mouse 859L2CAP link layer control and adaptation protocol 860LAG link aggregation group 861LAMP Linux Apache MySQL {Perl,PHP,Python} 862LAN local area network 863LAPIC local advanced programmable interrupt controller 864LAR load access rights 865LBA logical block addressing 866LBNF labeled backus-naur form 867LBS location-based service 868LCD liquid crystal display 869LCP link control protocol 870LDA local delivery agent 871LDAP Lightweight Directory Access Protocol 872LDR light-dependent resistor 873LDT local descriptor table 874LE logical extent 875LED light emitting diode 876LELL low energy link layer 877LER label edge router 878LF line feed 879LF low frequency 880LFM lowest frequency mode 881LFN long file names 882LFO low-frequency oscillation 883LFS log-structured file system 884LFU least frequently used 885LHP loop heat pipe 886LIF logical interchange format 887LIFO last in, first out 888LILO LInux LOader 889LILO last in, last out 890LINT local interrupt 891LIR local Internet registry 892LISP LISt Processor 893LISP Locator/ID Separation Protocol 894LKM {Linux,loadable} kernel module 895LKML Linux kernel mailing list 896LL load linked 897LL/SC load linked/store conditional 898LLC logical link control 899LLD low-level design 900LLDD low-level design document 901LLDP link layer discovery protocol 902LLF low level format 903LLMNR link-local multicast name resolution 904LLVM Low Level Virtual Machine 905LM long mode 906LMCE local machine check exception 907LMI local management interface 908LMM link management mode 909LMP link management protocol 910LNO loop nest optimization 911LOC lines of code 912LOM lights-out management 913LPE Linux performance events 914LPC low pin count 915LPS local positioning system 916LRC longitudinal redundancy check 917LRM left-to-right mark 918LRO Large Receive Offload 919LRO left-to-right override 920LRU least recently used 921LS link state 922LSAN Leak Sanitizer 923LSB Linux standards base 924LSB least significant {bit,byte} 925LSI large scale integration 926LSL load segment limit 927LSM log structured merge 928LSN Large Scale NAT 929LSN log sequence number 930LSO large send offload 931LSR label switch router 932LTCC low temperature co-fired ceramic 933LTO linear tape-open 934LTO link time optimization 935LTR left to right 936LTR load task register 937LTR letter(-sized paper) 938LTS long term support 939LUA Lua Uppercase Accident 940LUN logical unit number 941LV logical volume 942LVM logical volume management 943LVT local vector table 944LVDS Low-Voltage Differential Signaling 945LWP light-weight process 946LZSS Lempel Ziv Storer Szymanski 947LZW Lempel Ziv Welch 948MAB MAC authentication bypass 949MAC mandatory access control 950MAC {media,medium} access control 951MAC message authentication {check,code} 952MADT multiple APIC descriptor table 953MAMR microwave-assisted magnetic recording 954MB megabyte 955MBA multi-boot agent 956MBR master boot record 957MBS megabits per second 958MC memory controller 959MCA machine check architecture 960MCA MicroChannel architecture 961MCC multiversion concurrency control 962MCE machine check exception 963MCGA Multi-Color Graphics Array 964MCH memory controller hub 965MCLAG multi-chassis link aggregation group 966MCM multi-chip module 967MCQ memory controlled queue 968MD machine-dependent 969MD MiniDisc 970MD-SAL model-driven service abstraction layer 971MDA mail delivery agent 972MDA Monochrome Display Adapter 973MDC Management Data Clock 974MDI Medium Dependent Interface 975MDI-X Medium Dependent Interface Crossover 976MDIO Management Data Input/Output 977MDMX MIPS Digital Media eXtension 978MDRAM multibank dynamic random access memory 979MESI modified, exclusive, shared, invalid 980MFC merge from current 981MFC Microsoft Foundation Classes 982MFM modified frequency modulation 983MFU most frequently used 984MGCP media gateway control protocol 985MHU message handling unit 986MI machine-independent 987MI machine interface 988MIB management information base 989MIC message integrity {check,code} 990MID mobile Internet device 991MIDI musical instrument digital interface 992MIF management information format 993MII media independent interface 994MIM man in the middle 995MIMD multiple instruction, multiple data 996MIME Multipurpose Internet Mail Extensions 997MIMO multiple input multiple output 998MIPS million instructions per second 999MIPS Microprocessor without Interlocked Pipeline Stages 1000MISD multiple instruction, single data 1001MIT Massachusetts Institute of Technology 1002MITM man in the middle 1003ML machine language 1004ML machine learning 1005ML mailing list 1006ML markup language 1007ML maximum likelihood 1008MLAG multi-chassis link aggregation group 1009MLC multi-level cell 1010MLD multicast listener discovery 1011MLHP micro loop heat pipe 1012MLIR multi-level intermediate representation 1013MLO MMC loader 1014MMC multi-media card 1015MMF multi-mode fiber 1016MMIC monolithic microwave integrated circuit 1017MMIO memory mapped input/output 1018MMORPG massive multiplayer online role playing game 1019MMRP multiple MAC registration protocol 1020MMU memory management unit 1021MMX matrix math extension 1022MMX multimedia extension 1023MMX multiple math extension 1024MO magneto-optical 1025MOESI modified, owned, exclusive, shared, invalid 1026MOF maximum operating frequency 1027MOSFET metal-oxide-semiconductor field-effect transistor 1028MOSI modified, owned, shared, invalid 1029MP multi-platform 1030MP multiplayer 1031MP {multiprocessing,multiprocessor} 1032MPEG moving picture experts group 1033MPI message passing interface 1034MPLS Multiprotocol Label Switching 1035MPP massively parallel processor 1036MPS memory pool system 1037MPS multiprocessor specification 1038MQTT Message Queuing Telemetry Transport 1039MR modem ready 1040MRO method resolution order 1041MRP multiple registration protocol 1042MRU most recently used 1043MS Microsoft 1044MSAN Memory Sanitizer 1045MSB most significant {bit,byte} 1046MSC message sequence chart 1047MSE mean square error 1048MSF minutes seconds frames 1049MSI message signaled interrupt 1050MSI modified, shared, invalid 1051MSR {machine state,model-specific} register 1052MSS maximum segment size 1053MSTP Multiple Spanning Tree Protocol 1054MT machine translation 1055MTA mail transfer agent 1056MTBF mean time between failures 1057MTP media transfer protocol 1058MTRR memory type range register 1059MTTF mean time to failure 1060MTU maximum transmission unit 1061MUA mail user agent 1062MUD multi-user domain 1063MVCC multiversion concurrency control 1064MVR multicast VLAN registration 1065MVRP multiple VLAN registration protocol 1066MWE module width encoding 1067MX mail exchange 1068NACK negative acknowledgement 1069NAK negative acknowledgement 1070NAN neighbor awareness networking 1071NAN not a number 1072NAPT Network Address Port Translation 1073NAS network attached storage 1074NAT network address translation 1075NAV network allocation vector 1076NC numerical control 1077NC-SI network controller sideband interface 1078NCO numerically-controlled oscillator 1079NCP Network Control Protocol 1080NCSI network connectivity status indicator 1081NCQ native command queuing 1082ND neighbor discovery 1083NDFA nondeterministic finite automaton 1084NDIS network driver interface specification 1085NE numeric error 1086NEWS Network extensible Window System 1087NFA nondeterministic finite automaton 1088NFC near-field communication 1089NFCI no functional change intended 1090NFS network file system 1091NFV network function virtualization 1092NHACP NABU HCCA Application Communication Protocol 1093NIA next instruction address 1094NIC network information center 1095NIC network interface card 1096NIDS network intrusion detection system 1097NIP network interface protocol 1098NIPS network intrusion prevention system 1099NIS network information service 1100NIST National Institute of Standards and Technology 1101NLS native language support 1102NMI non-maskable interrupt 1103NNTP Network News Transfer Protocol 1104NMR nonce-misuse resistance 1105NOC network operations center 1106NOP no operation 1107NOS network operating system 1108NP nondeterministic polynomial time 1109NRND not recommended for new designs 1110NRZ non-return to zero 1111NSA nation-state adversary 1112NSA no such agency 1113NSA National Security Agency 1114NTM non-deterministic Turing machine 1115NTP Network Time Protocol 1116NUMA non-uniform memory access 1117NURBS non-uniform rational basis spline 1118NVMM NetBSD Virtual Machine Monitor 1119NVMM non-volatile main memory 1120NVRAM non-volatile random access memory 1121NW not write-through 1122NX no execute 1123OAEP optimal asymmetric encryption padding 1124OAM operations, administration, and {management,maintenance} 1125OBO off by one 1126OBOE off by one error 1127OCL object constraint language 1128OCR optical character recognition 1129ODE offline device environment 1130ODI open data-link interface 1131ODM object data manager 1132ODCM on-demand clock modulation 1133ODMR on-demand mail relay 1134ODT on-die termination 1135OEM original equipment manufacturer 1136OFB output feedback 1137OFDM orthogonal frequency division multiplexing 1138OFET organic field-effect transistor 1139OLAP online analytical processing 1140OLE object linking and embedding 1141OLTP online transaction processing 1142ONCE on-{chip,circuit} emulation 1143ONFI open nand flash interface 1144OO OpenOffice 1145OO object oriented 1146OOB out of band 1147OOE out of order execution 1148OOM out of memory 1149OOO OpenOffice.org 1150OOP object oriented programming 1151OOPS object oriented programming systems 1152OOSE object oriented software engineering 1153OPM operations per minute 1154OPS operations per second 1155OQL Object Query Language 1156ORB object request broker 1157ORM object-relational mapping 1158OS operating system 1159OSD object-based storage device 1160OSD open source definition 1161OSF open software foundation 1162OSI Open Source Initiative 1163OSI open systems interconnection 1164OSPF open shortest path first 1165OSPM OS power management 1166OSS open sound system 1167OSS open source software 1168OSVW operating system visible workarounds 1169OTP one time password 1170OTP open telecom platform 1171OU organizational unit 1172OUI organizationally unique identifier 1173OWASP Open Web Application Security Project 1174OWL Web Ontology Language 1175P2P PCI to PCI 1176P2P peer to peer 1177PA phase accumulator 1178PA physical address 1179PAAS platform as a service 1180PAC phase-amplitude converter 1181PAE physical address extension 1182PAGP port aggregation protocol 1183PAL phase alternating line 1184PAL programmable array logic 1185PAM pluggable authentication modules 1186PAM pulse amplitude modulation 1187PAP password authentication protocol 1188PAT page attribute table 1189PAT port address translation 1190PATA parallel ATA 1191PAX portable archive exchange 1192PBE pending break encoding 1193PBE programming by example 1194PBR partition boot record 1195PBX private branch exchange 1196PC personal computer 1197PC program counter 1198PCB printed circuit board 1199PCB process control block 1200PCB Protocol Control Block 1201PCBC propagating cipher block chaining 1202PCC Portable C Compiler 1203PCD page-level cache disable 1204PCE path computation element 1205PCE performance-monitor counter enable 1206PCEP Path Computation Element Protocol 1207PCH platform controller hub 1208PCI peripheral component interconnect 1209PCM phase change memory 1210PCM pulse code modulation 1211PCMCIA Personal Computer Memory Card International Association 1212PCP Port Control Protocol 1213PD public domain 1214PDA personal digital assistant 1215PDA pushdown automaton 1216PDAG propositional directed acyclic graph 1217PDB power distribution board 1218PDF portable document format 1219PDM pulse-duration modulation 1220PDN pull-down network 1221PDP page {descriptor,directory} page 1222PDS product data sheet 1223PDU protocol data unit 1224PE protection enable 1225PE provider edge 1226PE portable executable 1227PEAP Protected EAP 1228PECI platform environment control interface 1229PEP protocol extension protocol 1230PER packed encoding rules 1231PFS perfect forward secrecy 1232PGAS partitioned global address space 1233PGE page global enable 1234PGO profile guided optimization 1235PGP Pretty Good Privacy 1236PHB PCI host bridge 1237PHP PHP: Hypertext Preprocessor 1238PIC performance instrumentation counters 1239PIC position independent code 1240PIC programmable interrupt controller 1241PICNIC problem in chair, not in computer 1242PID process id 1243PIE position independent executable 1244PIL Priority Interrupt Level 1245PIM personal information manager 1246PIM platform-independent model 1247PIO programmed input/output 1248PIPT physically indexed, physically tagged 1249PIR private information retrieval 1250PIQ prefetch input queue 1251PIT programmable interrupt timer 1252PIV personal identity verification 1253PIX Private Internet eXchange 1254PKCS public-key cryptography standards 1255PKI public key infrastructure 1256PLC programmable logic controller 1257PLD programmable logic device 1258PLL phase locked loop 1259PLRU pseudo LRU 1260PLT procedure linkage table 1261PLTM package level thermal management 1262PM power management 1263PM {phase,pulse} modulation 1264PMC performance monitoring counters 1265PME power management event 1266PMEG page map entry group 1267PMI performance monitoring infrastructure 1268PMI platform management interrupt 1269PMIC power management integrated circuit 1270PMIO port-mapped input/output 1271PMT photo-multiplier tube 1272PMU performance monitoring units 1273PMU power management unit 1274PNG portable network graphics 1275PNP plug and play 1276POE power over ethernet 1277POF probability of failure 1278POP Post Office Protocol 1279POP power on password 1280POR plan of record 1281POSIX Portable Operating System Interface [for Unix] 1282POST power on self test 1283POTS plain old telephone system 1284POWER Performance Optimization With Enhanced RISC 1285POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1286PP pair programming 1287PPB PCI [to] PCI bridge 1288PPC PowerPC 1289PPC Power Performance Computing 1290PPI pixels per inch 1291PPM pages per minute 1292PPP Point-to-Point Protocol 1293PPPOA Point-to-Point Protocol over ATM 1294PPPOE Point-to-Point Protocol over Ethernet 1295PPR processor programming reference 1296PPT powerpoint 1297PPT punched paper tape 1298PPU physics processing unit 1299PQC post-quantum cryptography 1300PRAM Parameter RAM 1301PRBS pseudorandom bit sequence 1302PRG pseudorandom generator 1303PRF pseudorandom function [family] 1304PRML partial response, maximum likelihood 1305PRN pseudorandom {noise,number} 1306PRNG pseudorandom number generator 1307PROM programmable read only memory 1308PRP pseudorandom permutation 1309PRU Programmable Realtime Unit 1310PS PostScript 1311PSD power spectral density 1312PSE page size extensions 1313PSK phase shift keying 1314PSK pre-shared key 1315PSTN public switched telephone network 1316PSW program status word 1317PTE page table entry 1318PTLA pseudo top level aggregator 1319PTP page table page 1320PTV perceived target value 1321PU processing unit 1322PUC personal unblocking code 1323PUN physical unit number 1324PV physical volume 1325PVC permanent virtual circuit 1326PVG physical volume group 1327PVI protected-mode virtual interrupt 1328PVRST Per-VLAN rapid spanning tree 1329PVST Per-VLAN Spanning Tree 1330PWM pulse width modulation 1331PXE preboot execution environment 1332QA quality assurance 1333QAM quadrature amplitude modulation 1334QAM quality assurance management 1335QBE query by example 1336QC quality control 1337QDI quasi delay insensitive 1338QCIF quarter common intermediate format 1339QOI quality of implementation 1340QOI quick order interface 1341QOS quality of service 1342QVL qualified vendor list 1343R/O read only 1344R/W read/write 1345RA receiver address 1346RA remote assistance 1347RA resource affinity 1348RA router advertisement 1349RAD rapid application development 1350RADIUS remote authentication dial-in user service 1351RAID redundant array of {independent,inexpensive} disks 1352RAII resource acquisition is initialization 1353RAM random access memory 1354RAS reliability, availability and serviceability 1355RAS remote access service 1356RAS restartable atomic sequence 1357RAS row address strobe 1358RAT register allocation table 1359RBF radial basis function 1360RBL reputation block list 1361RBL real-time blackhole list 1362RBNF routing backus-naur form 1363RBT red-black tree 1364RC release candidate 1365RC remote control 1366RC run commands 1367RCS Revision Control System 1368RCU read, copy, update 1369RDB Rigid Disk Block 1370RDBMS relational database management system 1371RDF Resource Description Framework 1372RDM relational data model 1373RDMA remote direct memory access 1374RDP remote desktop protocol 1375RDRAM Rambus DRAM 1376RE regular expression 1377REPL read, evaluate, print, loop 1378REST representational state transfer 1379RF radio frequency 1380RFB remote frame buffer 1381RFI radio frequency interference 1382RFO request for ownership 1383RFU reserved for future use 1384RGB red green blue 1385RGBA red green blue alpha 1386RGMII reduced gigabit media independent interface 1387RH read hit 1388RHEL Red Hat Enterprise Linux 1389RHL Red Hat Linux 1390RIB routing information base 1391RIFF Resource Interchange File Format 1392RIP Raster Image Processor 1393RIP Routing Information Protocol 1394RIR regional Internet registry 1395RISC reduced instruction set {computer,computing} 1396RKM ROM Kernel Manual 1397RLE run length encoding 1398RLL run length limited 1399RLO right-to-left override 1400RM read miss 1401RMCP Remote Management Control Protocol 1402RMI remote method invocation 1403RMO Relaxed Memory Ordering 1404RMPM rapid memory power management 1405RMS root mean square 1406RMW read, modify, write 1407RNG random number generator 1408ROM read only memory 1409ROP return-oriented programming 1410RPC remote procedure call 1411RPG Report Program Generator 1412RPKI resource PKI 1413RPL requested privilege level 1414RPM revolutions per minute 1415RPN reverse Polish notation 1416RPVST Rapid Per-VLAN Spanning Tree 1417RR random replacement 1418RR round robin 1419RS relay station 1420RSA Rivest, Shamir, [and] Adleman 1421RSC Receive Segment Coalescing 1422RSIP Realm Specific IP 1423RSN Robust Secure Network 1424RSS really simple syndication 1425RSS Receive Side Scaling 1426RSS residual sum of squares 1427RSTP Rapid Spanning Tree Protocol 1428RT real time 1429RTC real time clock 1430RTC real time computing 1431RTF rich text format 1432RTL register transfer language 1433RTL resistor-transistor logic 1434RTL right to left 1435RTOS real time operating system 1436RTP Real-time Transport Protocol 1437RTS request to send 1438RTT round trip time 1439RTTI run-time type information 1440RUP rational unified process 1441RW Rabin-Williams 1442RWM read-write memory 1443RX {receive,receiver} 1444S/PDIF Sony/Philips Digital Interface Format 1445SA security advisory 1446SA security association 1447SA source address 1448SA structured analysis 1449SAAS software as a service 1450SABRE Semi-automated business research environment 1451SACD super audio compact disc 1452SAD security association database 1453SAF-TE SCSI accessed fault-tolerant enclosure 1454SAGE Semi-automated ground environment 1455SAL {service,system} abstraction layer 1456SAM serial access memory 1457SAM sum addressed memory 1458SAML security assertion markup language 1459SAN storage area network 1460SAP service access point 1461SAPIC streamlined advanced programmable interrupt controller 1462SASD structured analysis, structured design 1463SASI Shugart Associates System Interface 1464SASL simple authentication [and] security layer 1465SATA serial advanced technology attachment 1466SAX simple API for XML 1467SB sound blaster 1468SBSA server base system architecture 1469SBU standard build unit 1470SC store conditional 1471SCA source code analyzer 1472SCADA supervisory control and data acquisition 1473SCC single chip cloud 1474SCC source code control 1475SCCP skinny call control protocol 1476SCCS Source Code Control System 1477SCI scalable coherent interface 1478SCI system control interrupt 1479SCIM smart common input method 1480SCM software configuration management 1481SCM source code management 1482SCM storage-class memory 1483SCO synchronous connection orientated 1484SCP secure copy 1485SCP system control processor 1486SCPI system control and power interface 1487SCSI Small Computer System Interface 1488SCTP Stream Control Transmission Protocol 1489SDDC software defined data center 1490SDEI software delegated exception interface 1491SDI symbol deinterleave 1492SDK software development kit 1493SDL Simple Declarative Language 1494SDL Simple Direct-media Layer 1495SDLC {software,system,systems} development life cycle 1496SDN software defined networking 1497SDP Session Description Protocol 1498SDR software defined radio 1499SDRAM synchronous dynamic random access memory 1500SDS software defined storage 1501SDT syntax-directed translation 1502SEA synchronous external abort 1503SEGV segmentation violation 1504SED self-encrypting drive 1505SED stream editor 1506SEMB serial ATA enclosure management bridge 1507SEO search engine optimization 1508SES SCSI enclosure services 1509SFC sequential function chart 1510SFI simple firmware interface 1511SFI software fault isolation 1512SFTP SSH File Transfer Protocol 1513SFTP Serial File Transfer Protocol 1514SFTP Simple File Transfer Protocol 1515SGI Silicon Graphics, Inc 1516SGI software generated interrupt 1517SGMII serial gigabit media independent interface 1518SGPIO serial general purpose input/output 1519SGRAM synchronous graphics random access memory 1520SHA secure hash algorithm 1521SICP structure and interpretation of computer programs 1522SIDH supersingular isogeny Diffie-Hellman 1523SIEM security information and event management 1524SIF source input format 1525SIFS short inter-frame space 1526SIM subscriber identity module 1527SIMD single instruction, multiple data 1528SIMM single inline memory module 1529SIP Session Initiation Protocol 1530SIR signal-to-interference ratio 1531SIR slow infrared 1532SISD single instruction, single data 1533SIV synthetic intialization vector 1534SLAAC stateless address auto-configuration 1535SLC single-level cell 1536SLDRAM synchronous-link dynamic random access memory 1537SLED single large expensive disk 1538SLI scalable link interface 1539SLI scan-line interleave 1540SLIC system license internal code 1541SLOC source lines of code 1542SLRU segmented LRU 1543SMA smart memory access 1544SMAF system management action field 1545SMAP Simple Mail Access Protocol 1546SMAP supervisor mode access prevention 1547SMART self-monitoring analysis and reporting technology 1548SMB Server Message Block 1549SMB system management bus 1550SMBIOS System Management BIOS 1551SMC system management controller 1552SMD storage module device 1553SMEP supervisor mode execution protection 1554SMF single mode fiber 1555SMI structure of management information 1556SMI system management interrupt 1557SMM system management mode 1558SMP serial management protocol 1559SMP symmetric multiprocessing 1560SMR shingled magnetic recording 1561SMR state machine replication 1562SMT simultaneous multithreading 1563SMTP Simple Mail Transfer Protocol 1564SMU system management unit 1565SNA systems network architecture 1566SNAP Sub-Network Access Protocol 1567SNIA Storage Networking Industry Association 1568SNMP Simple Network Management Protocol 1569SNR signal-to-noise ratio 1570SOA service oriented architecture 1571SOAP Simple Object Access Protocol 1572SOC system on chip 1573SOF start of frame 1574SOH start of header 1575SOHO small office/home office 1576SOL serial over LAN 1577SOM system on module 1578SP service pack 1579SP stack pointer 1580SPA storage pool allocator 1581SPAN switched port analyzer 1582SPARC scalable processor architecture 1583SPARQL SPARQL Protocol and RDF Query Language 1584SPD security policy database 1585SPD serial presence detect 1586SPDIF Sony/Philips digital interface format 1587SPI serial peripheral interface 1588SPI stateful packet inspection 1589SPIR standard portable intermediate representation 1590SPL secondary program loader 1591SPL spinlock 1592SPL system interrupt priority level 1593SPMD single process, multiple data 1594SPR special purpose register 1595SPT sectors per track 1596SQA software quality assurance 1597SQCIF sub quarter common intermediate format 1598SQL Structured Query Language 1599SRAM static random access memory 1600SRC sample rate conversion 1601SRP SCSI RDMA protocol 1602SRR shaped round robin 1603SRTP Secure Real-time Transport Protocol 1604SS self-snoop 1605SS stack segment 1606SSA static single assignment 1607SSAP source service access point 1608SSB single-sideband modulation 1609SSC spread spectrum clock 1610SSD solid state drive 1611SSE streaming SIMD extensions 1612SSFDC solid state floppy disc card 1613SSH secure shell 1614SSI server side includes 1615SSID service set identifier 1616SSTP secure socket tunneling protocol 1617SSL secure sockets layer 1618SSP stack smashing protection 1619STC software thermal control 1620STD state transition diagram 1621STM software transactional memory 1622STOMP Streaming Text Oriented Messaging Protocol 1623STP Spanning Tree Protocol 1624STP shielded twisted pair 1625STRG spanning tree root guard 1626SUN Stanford University Network 1627SUS Single Unix Specification 1628SUT system under test 1629SVC switched virtual circuit 1630SVG scalable vector graphics 1631SVGA Super Video Graphics Array 1632SVI {switch,switched} virtual interface 1633SVM secure virtual machine 1634SVM support vector machine 1635SVR System V Release 1636SVS Separate Virtual Space 1637SWF Shockwave Flash 1638SWIG simplified wrapper [and] interface generator 1639SYR symbol timing recovery 1640TA test assertion 1641TA transmitter address 1642TACACS terminal access controller access-control system 1643TAI international atomic time 1644TAO track at once 1645TAOCP The Art of Computer Programming 1646TAP Test Anything Protocol 1647TAS test and set 1648TB terabyte 1649TBNF transitional backus-naur form 1650TCB trace capture buffer 1651TCB trusted computing base 1652TCC thermal control circuit 1653TCL tool command language 1654TCP Transmission Control Protocol 1655TCQ tagged command queueing 1656TDC time [to] digital converter 1657TDD test-driven development 1658TDD time division duplex 1659TDM time division multiplexing 1660TDMA time division multiple access 1661TDOA time difference of arrival 1662TDP thermal design {point,power} 1663TDR time-domain reflectometry 1664TECO Text Editor and Corrector 1665TEE Trusted Execution Environment 1666TFT thin film transistor 1667TFTP Trivial File Transfer Protocol 1668TIAS try it and see 1669TIFF tagged image file format 1670TITS try it to see 1671TK temporal key 1672TKIP Temporal Key Integrity Protocol 1673TLA top level aggregator 1674TLB translation lookaside buffer 1675TLD top level domain 1676TLER time-limited error recovery 1677TLI transport layer interface 1678TLS thread local storage 1679TLS transport layer security 1680TM Turing machine 1681TM thermal monitor 1682TMG transmogrifier 1683TMDS transition minimized differential signaling 1684TMO timeout 1685TOD time of day 1686TOE TCP offload engine 1687TOFU trust on first use 1688TOS terms of service 1689TOS trusted operating system 1690TOS type of service 1691TOTP time-based one time password 1692TP transaction processing 1693TPI tracks per inch 1694TPM transactions per minute 1695TPM trusted platform module 1696TPR task priority register 1697TPS transactions per second 1698TPS transmission parameters signaling 1699TR task register 1700TR token ring 1701TRL timing recovery loop 1702TRNG true random number generator 1703TS terminal services 1704TS time series 1705TS time stamp 1706TS transport stream 1707TSAN Thread Sanitizer 1708TSC time stamp counter 1709TSD time stamp disable 1710TSDB time series database 1711TSL test, set, lock 1712TSO time sharing option 1713TSO TCP segmentation offload 1714TSO Total Store Ordering 1715TSP Time-Stamp Protocol 1716TSP Tunnel Setup Protocol 1717TSP time synchronization protocol 1718TSP traveling salesman problem 1719TSS task state segment 1720TSV tab-separated values 1721TTL time to live 1722TTL transistor-transistor logic 1723TTM translation table maps 1724TTY teletype 1725TU translation unit 1726TUI {terminal,text-based,textual} user interface 1727TX {transmit out,transmitter} 1728TXG transaction group 1729TZ time zone 1730UAC user {access,account} control 1731UAF use-after-free 1732UART universal asynchronous receiver/transmitter 1733UAT user acceptance testing 1734UB undefined behavior 1735UBSAN Undefined Behavior Sanitizer 1736UC uncacheable 1737UCS uniform-cost search 1738UCS unified computing system 1739UCS universal coded character set 1740UDI uniform driver interface 1741UDMA ultra DMA 1742UDO ultra density optical 1743UDP User Datagram Protocol 1744UDS Unix Domain Socket 1745UEFI unified extensible firmware interface 1746UFO UDP fragmentation offload 1747UFS Unix File System 1748UGA universal graphics adapter 1749UI unit interval 1750UI user interface 1751UICC universal integrated circuit card 1752UID unique identifier 1753UID user identifier 1754UL upload 1755UMA uniform memory access 1756UMA upper memory area 1757UMB upper memory block 1758UML unified modeling language 1759UMPC ultra-mobile PC 1760UPNP universal plug and play 1761UPS uninterruptible power supply 1762URI uniform resource identifier 1763URL uniform resource locator 1764URN uniform resource name 1765USART universal synchronous/asynchronous receiver/transmitter 1766USB universal serial bus 1767USWC uncacheable speculative write combining 1768UT unit test 1769UTC coordinated universal time 1770UTF unicode transformation formats 1771UTP unshielded twisted pair 1772UTS UNIX time-sharing 1773UUCP Unix-to-Unix Copy Protocol 1774UUID universally unique identifier 1775UUOC useless use of cat 1776UUT unit under test 1777UX user experience 1778VA vertical alignment 1779VA virtual address 1780VA volt-ampere 1781VAX virtual address extension 1782VB Visual Basic 1783VBR volume boot record 1784VCA variable-gain amplifier 1785VCC common collector voltage 1786VCCP virtual chassis control protocol 1787VCF voltage-controlled filter 1788VCM virtual channel memory 1789VCO voltage-controlled oscillator 1790VCP virtual chassis port 1791VCS version control system 1792VDPAU Video Decode and Presentation API for Unix 1793VES virtual execution system 1794VESA Video Electronics Standards Association 1795VFO variable-frequency oscillator 1796VFS virtual file system 1797VG volume group 1798VGA Video Graphics Array 1799VHDCI very high density cable interconnect 1800VID {VLAN,voltage level} identifier 1801VIM Vi IMproved 1802VIPT virtually indexed, physically tagged 1803VIVT virtually indexed, virtually tagged 1804VLAN virtual local area network 1805VLD variable-length decoding 1806VLIW very long instruction word 1807VLSI very large scale integration 1808VLSM variable length subnet mask 1809VM virtual {machine,memory} 1810VME virtual mode extension 1811VMX vector multimedia extensions 1812VMX virtual machine extensions 1813VNC virtual network computing 1814VOD video on demand 1815VPD vital product data 1816VPN virtual private network 1817VPWS virtual private wire service 1818VR virtual reality 1819VRAM video random access memory 1820VRF virtual routing and forwarding 1821VRM voltage regulator module 1822VROC Virtual RAID On CPU 1823VRRP Virtual Router Redundancy Protocol 1824VSTP VLAN Spanning Tree Protocol 1825VTP VLAN Trunking Protocol 1826VXFS Veritas file system 1827VXVM Veritas volume manager 1828W watt 1829W3C World Wide Web Consortium 1830WAFL write anywhere file layout 1831WAMP Web Application Messaging Protocol 1832WAN wide area network 1833WAP Wireless Application Protocol 1834WAP wireless access point 1835WDM Windows Driver Model 1836WDDM Windows Display Driver Model 1837WDT watchdog timer 1838WEP Wired Equivalent Privacy 1839WFI wait for interrupt 1840WFQ weighted fair queuing 1841WH write hit 1842WHEA Windows hardware error architecture 1843WIFI wireless fidelity 1844WLAN wireless local area network 1845WM write miss 1846WMF Windows meta file 1847WMI Windows Management Instrumentation 1848WOL Wake-on-LAN 1849WOM Wake-on-Modem 1850WOR Wake-on-Ring 1851WORM write once read many 1852WP WordPerfect 1853WP word processor 1854WP write protect 1855WPA Wi-Fi Protected Access 1856WPA2 Wi-Fi Protected Access II 1857WPAD web proxy auto-discovery protocol 1858WPS Wi-Fi Protected Setup 1859WRAM window random access memory 1860WS web services 1861WTC write through caching 1862WTD weighted tail drop 1863WWAN wireless wide area network 1864WWW world wide web 1865WYSIAYG what you see is all you get 1866WYSIWYG what you see is what you get 1867XBAR crossbar 1868XDMCP X Display Manager control protocol 1869XER XML encoding rules 1870XGA Extended Graphics Array 1871XHR XMLHttpRequest 1872XIP execute in place 1873XML Extensible Markup Language 1874XNA XNA's not acronymed 1875XNS Xerox network systems 1876XOR exclusive or 1877XP extreme programming 1878XSI X/Open System Interface 1879XSL extensible stylesheet language 1880XSLT extensible stylesheet language transformations 1881XSS cross site scripting 1882XT extended technology 1883XTACACS extended terminal access controller access-control system 1884XTI X/Open transport interface 1885XUL XML user interface language 1886YACC yet another compiler compiler 1887YAML YAML ain't markup language 1888YANG yet another next generation 1889YAWPFAPR you are welcome; please file a problem report 1890YP Yellow Pages 1891YTD year to date 1892ZAP ZFS attribute processor 1893ZBR zone bit recording 1894ZFOD zero-filled on demand 1895ZFS zettabyte file system 1896ZIF zero insertion force 1897ZIFS zero insertion force socket 1898ZIL ZFS intent log 1899ZMA zone multicast address 1900ZOI zero one infinity 1901ZOI zone of influence 1902ZPL ZFS Posix layer 1903ZVOL ZFS Volume 1904