acronyms.comp revision 1.355
1$NetBSD: acronyms.comp,v 1.355 2023/06/12 21:00:38 alnsn 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 209CACLS change access control lists 210CAD computer-aided design 211CAM computer assisted manufacturing 212CAM conditional access module 213CAM content addressable memory 214CARP Common Address Redundancy Protocol 215CAS column address strobe 216CAS compare and swap 217CAS computer algebra system 218CASE computer aided software engineering 219CAU control access unit 220CAV constant angular velocity 221CBC cipher block chaining 222CBR constant bit rate 223CC carbon copy 224CCC Chaos Computer Club 225CCD charge coupled device 226CCI co-channel interferer 227CCNUMA cache-coherent non-uniform memory access 228CCTL command completion time limit 229CD cache disable 230CD compact disc 231CDDA compact disc digital audio 232CDL compiler description language 233CDMA code division multiple access 234CDN content delivery network 235CDP Cisco Discovery Protocol 236CDRAM cache dynamic random access memory 237CER canonical encoding rules 238CE customer edge 239CF compact flash 240CFB cipher feedback 241CFG context-free grammar 242CFG control-flow graph 243CFI control-flow integrity 244CG control gate 245CGA Color Graphics Adapter 246CGI common gateway interface 247CGN Carrier-Grade NAT 248CHAP Challenge-Handshake Authentication Protocol 249CHFS chip file system 250CHS cylinder/head/sector 251CI continuous integration 252CI {common,component} interface 253CIA confidentiality, integrity, availability 254CIDR Classless Inter-Domain Routing 255CIF common intermediate format 256CIFS Common Internet File System 257CIL common intermediate language 258CIR carrier-to-interference ratio 259CIS contact image sensor 260CISC complex instruction set {computer,computing} 261CJK Chinese, Japanese, [and] Korean 262CLF common log format 263CLI command line interface 264CLI common language infrastructure 265CLR common language runtime 266CLS common language specification 267CLTT closed loop thermal throttling 268CLUT color look-up table 269CLV constant linear velocity 270CM configuration management 271CMA concert multithread architecture 272CMC chassis management controller 273CMC corrected machine check 274CMC certificate management over CMS 275CMS {configuration,content,course} management system 276CMS cryptographic message syntax 277CMI control {management,method} interface 278CMOS complementary metal-oxide-semiconductor 279CMP chip multi-processing 280CMS content management system 281CMYK cyan magenta yellow black 282CN {common,canonical} name 283CNC computer numerical control 284CNR carrier-to-noise ratio 285COA change of authority 286COF current operating frequency 287COFDM coded orthogonal frequency division multiplexing 288COFF common object file format 289COM component object model 290COM computer on module 291COMA cache-only memory architecture 292CORBA common object request broker architecture 293COS class of service 294COW copy-on-write 295CP continuous pilot 296CPA chosen-plaintext attack 297CPB core performance boost 298CPC central processor complex 299CPC cpu performance counters 300CPE common phase error 301CPE common platform enumeration 302CPER common platform error record 303CPG clock pulse generator 304CPI cycles per instruction 305CPL current privilege level 306CPLD complex programmable logic device 307CPP C preprocessor 308CPS characters per second 309CPS continuation-passing style 310CPT command pass through 311CPU central processing unit 312CR carriage return 313CRC cyclic redundancy check 314CRDT conflict-free replicated data type 315CRL carrier recovery loop 316CRLF carriage return line feed 317CSPM cloud security posture management 318CSU C start up 319CRT cathode ray tube 320CRTP curiously recurring template pattern 321CRUD create, read, update, and delete 322CS cable select 323CS chip select 324CS code segment 325CS computer science 326CSDL {common,conceptual} schema definition language 327CSI channel state information 328CSI common system interface 329CSMA carrier sense multiple access 330CSMA/CA carrier sense multiple access with collision avoidance 331CSMA/CD carrier sense multiple access with collision detection 332CSP communicating sequential processes 333CSP content security policy 334CSP constrain satisfaction problems 335CSP cryptographic service provider 336CSR control [and] status registers 337CSRG Computer Systems Research Group 338CSS cascading style sheets 339CST common spanning tree 340CSV comma-separated values 341CTF compact c type format 342CTM close to metal 343CTR counter [mode] 344CTS clear to send 345CTS common type system 346CUA common user access 347CUT coordinated universal time 348CV control voltage 349CVE common vulnerabilities and exposures 350CVS Concurrent Versions System 351DA destination address 352DAA distributed application architecture 353DAAP digital audio access protocol 354DAB digital audio broadcasting 355DAC digital [to] analog converter 356DAC discretionary access control 357DAD duplicate address detection 358DANE DNS-based Authentication of Named Entities 359DAO disk at once 360DAP Directory Access Protocol 361DAT digital audio tape 362DAT dynamic acceleration technology 363DB database 364DBA database administrator 365DBA dynamic bandwidth allocation 366DBB data bus buffer 367DBC design by contract 368DBL dynamic buffer limiting 369DBMS database management system 370DBS database server 371DC data center 372DC direct current 373DCC Direct Client-to-Client 374DCC direct cable connect 375DCD data carrier detect 376DCE data control equipment 377DCE distributed computing environment 378DCIM data center infrastructure management 379DCIM digital camera images 380DCL Digital Command Language 381DCOM distributed component object model 382DCOP Desktop COmmunication Protocol 383DCS data collection systems 384DCT discrete cosine transform 385DCU data cache unit 386DDC display data channel 387DDE dynamic data exchange 388DDI device drivers interface 389DDK device driver kit 390DDL data description language 391DDR double data rate 392DDS direct digital sound 393DDWG Digital Display Working Group 394DE debugging extensions 395DE desktop environment 396DEA data encryption algorithm 397DEC Digital Equipment Corporation 398DEK data encryption key 399DEP data execution prevention 400DER distinguished encoding rules 401DES Data Encryption Standard 402DF don't fragment 403DFA deterministic finite automaton 404DFC data flow control 405DFS depth first search 406DFS distributed file system 407DFSAN Data Flow Sanitizer 408DFT diagnostic function test 409DFT discrete Fourier transform 410DGL data generation language 411DGEMM double precision general matrix multiply 412DH Diffie-Hellman 413DHCP Dynamic Host Configuration Protocol 414DIA dedicated Internet access 415DIB device independent bitmap 416DIFS distributed inter-frame space 417DIMM dual inline memory module 418DIRT design in real time 419DKI driver/kernel interface 420DL diode logic 421DL discrete logarithm 422DL download 423DLCI data link connection identifier 424DLE data link escape 425DLL dynamic link library 426DLNA digital living network alliance 427DLP discrete logarithm problem 428DMA direct memory access 429DMI desktop management interface 430DMS document management system 431DMT discrete multitone modulation 432DMU data management layer 433DNARD Digital network appliance reference design 434DND drag and drop 435DNLC directory name lookup cache 436DNS Domain Name System 437DNSBL Domain Name System Block List 438DNSSEC DNS Security Extensions 439DOE distributed object environment 440DOF data over fibre 441DOM document object model 442DOS denial of service 443DOS disk operating system 444DP DisplayPort 445DPAA data path acceleration architecture 446DPC deferred procedure call 447DPCM differential pulse code modulation 448DPD dead peer detection 449DPDK data plane development kit 450DPI deep packet inspection 451DPI dots per inch 452DPL descriptor privilege level 453DPS Display PostScript 454DPST display power savings technology 455DRAAS disaster recovery as a service 456DRAM dynamic random access memory 457DRBG deterministic random bit generator 458DRI direct rendering infrastructure 459DRM digital rights management 460DRM direct rendering manager 461DRRS display refresh rate switching 462DS debug store 463DS differentiated services 464DS9000 DeathStation 9000 465DS9K DeathStation 9000 466DSA digital signature algorithm 467DSAP destination service access point 468DSB double-sideband modulation 469DSCP differentiated services code point 470DSDT differentiated system descriptor table 471DSF device special file 472DSL dataset and snapshot layer 473DSL digital subscriber line 474DSL domain specific language 475DSLAM digital subscriber line access multiplexer 476DSN delivery status notification 477DSO dynamic shared object 478DSP digital signal processor 479DSSS direct sequence spread spectrum 480DTB device tree blob 481DTC device tree compiler 482DTD document type definition 483DTE data terminal equipment 484DTE dumb terminal emulator 485DTL diode-transistor logic 486DTLS datagram transport layer security 487DTS device tree source 488DTS digital thermal sensor 489DUT device under test 490DVB digital video broadcasting 491DVCS distributed version control system 492DVD digital versatile disc 493DVFS dynamic voltage and frequency scaling 494DVI device independent 495DVI Digital Visual Interface 496DVR digital video recorder 497DWARF Debugging With Attributed Record Formats 498E-XER extended XML encoding rules 499EABI embedded-application binary interface 500EAI Email Address Internationalization 501EAI Enterprise Application Integration 502EAP Extensible Authentication Protocol 503EAPOL EAP over Lan 504EAV entity-attribute-value model 505EAV ethernet audio/video bridging 506EBCDIC Extended Binary Coded Decimal Interchange Code 507EBDA Extended BIOS Data Area 508EBNF extended backus-naur form 509EBR extended boot record 510EC elliptic curve 511ECC elliptic curve cryptography 512ECC error correction code 513ECDH elliptic curve Diffie-Hellman 514ECDL elliptic curve discrete logarithm 515ECDLP elliptic curve discrete logarithm problem 516ECDSA elliptic curve digital signature algorithm 517ECL emitter-coupled logic 518ECN explicit congestion notification 519ECP enhanced capability port 520ECS enhanced chip set 521ECS extended configuration space 522EDAC error detection and correction 523EDAT enhanced dynamic acceleration technology 524EdDSA Edwards curve digital signature algorithm 525EDGE explicit data graph execution 526EDID extended display identification data 527EDO extended data out 528EDS electronical data sheet 529EDSAC electronic delay storage automatic calculator 530EDVAC electronic discrete variable automatic computer 531EEE energy efficient ethernet 532EEE embrace, extend, extinguish 533EEPROM electrically erasable programmable read only memory 534EFI extensible firmware interface 535EFL emitter follower logic 536EFM eight to fourteen modulation 537EFS extent file system 538EGA Enhanced Graphics Adapter 539EGP exterior gateway protocol 540EH extension header 541EIDE enhanced IDE 542EISA extended industry standard architecture 543EINJ error injection table 544ELF executable and linking format 545ELS entry level system 546EMI electro-magnetic interference 547EMP electro-magnetic pulse 548EMR electro-magnetic radiation 549EMACS Editor MACroS 550ENIAC electronic numerical integrator and computer 551EOF end of file 552EOI end of interrupt 553EOIS end of interactive support 554EOL end of life 555EOL end of line 556EOT end of transmission 557EPIC explicitly parallel instruction computing 558EPP enhanced parallel port 559EPRML extended partial response, maximum likelihood 560EPROM erasable programmable read only memory 561EPT extended page tables 562ERC error recovery control 563ERD emergency recovery disk 564ERD entity relationship diagram 565ERE extended regular expression 566ERST error record serialization table 567ESAN Efficiency Sanitizer 568ESB enterprise service bus 569ESDI enhanced small disk interface 570ESDRAM enhanced synchronous dynamic random access memory 571ESI enclosure services interface 572ESS electronic switching system 573ESS extended service set 574ESSID extended service set identifier 575EST enhanced speedstep 576ETL extract, transform, load 577EU execution unit 578EULA end user license agreement 579FAT file allocation table 580FBRAM frame buffer random access memory 581FCIF full common intermediate format 582FCL fiber channel loop 583FCS frame check sequence 584FDC floppy disk controller 585FDD floppy disk drive 586FDDI fiber distributed data interface 587FDE full disk encryption 588FDT flattened device tree 589FEA finite element analysis 590FEC forward error correction 591FET field-effect transistor 592FF finite field 593FF form feed 594FFDH finite-field Diffie-Hellman 595FFH functional fixed hardware 596FFI foreign function interface 597FFM focus follows mouse 598FFS Fast File System 599FFS find first set 600FFT fast Fourier transform 601FG floating gate 602FHRP first hop redundancy protocol 603FHSS frequency hop spread spectrum 604FID frequency identifier 605FIFO first in, first out 606FILO first in, last out 607FIPS Federal Information Processing Standards 608FIR fast infrared 609FLOPS floating [point] operations per second 610FLOSS free/libre/open source software 611FM frequency modulation 612FMR false match rate 613FOSS free/open source software 614FPGA field programmable gate array 615FPM fast page mode 616FPR floating point register 617FPU floating point unit 618FQDN fully qualified domain name 619FRR false rejection rate 620FRU field replaceable unit 621FS file system 622FSB front side bus 623FSCK file system check 624FSF Free Software Foundation 625FSK frequency shift keying 626FSM finite-state machine 627FTA fault tree analysis 628FTL flash translation layer 629FTP File Transfer Protocol 630FTPS File Transfer Protocol Secure 631FTTH fiber to the home 632FUS fast user switching 633FWH firmware hub 634FWS folding white space 635GAL generic array logic 636GARP generic attribute registration protocol 637GAS generic address structure 638GC garbage collector 639GCC GNU Compiler Collection 640GCM Galois counter mode 641GCR group-coded recording 642GDI Graphics Device Interface 643GDT global descriptor table 644GECOS general comprehensive operating supervisor 645GEM graphics environment manager 646GEM graphics execution manager 647GEMM general matrix multiply 648GENA general event notification architecture 649GHC Glasgow Haskell compiler 650GHES generic hardware error source 651GIC generic interrupt controller 652GID group identifier 653GIF graphics interchange format 654GLBP gateway load balancing protocol 655GMCH graphics and memory controller hub 656GNU GNU's Not Unix 657GOP graphics output protocol 658GOT global offset table 659GPE general purpose event 660GPF general protection fault 661GPG GNU Privacy Guard 662GPL [GNU] General Public License 663GPR general purpose register 664GPS generalized processor sharing 665GPT GUID partition table 666GPU graphics processing unit 667GR golden ratio 668GRE generic routing encapsulation 669GRO generic receive offload 670GSI global system interrupt 671GSO generic send offload 672GUI graphical user interface 673GUID globally unique identifier 674GUS Gravis UltraSound 675GVFS git virtual file system 676HA high availability 677HAL hardware abstraction layer 678HAT hashed array tree 679HATEOAS hypermedia as the engine of application state 680HBA host bus adapter 681HCC Home Cable Computer 682HCCA Home Cable Computer Adaptor 683HCF halt and catch fire 684HCI host controller interface 685HCI human-computer interaction 686HCL hardware compatibility list 687HDCP High-bandwidth Digital Content Protection 688HDD hard disk drive 689HDL hardware description language 690HDMI High-Definition Multimedia Interface 691HDTV high-definition television 692HECI host embedded controller interface 693HEST hardware error source table 694HEVC high efficiency video coding 695HF high frequency 696HFM highest frequency mode 697HFS hierarchical file system 698HID human interface device 699HKDF HMAC-based key derivation function 700HKP HTTP Keyserver Protocol 701HLL high-level language 702HMA high memory area 703HMI human-machine interface 704HOOD hierarchical object oriented design 705HOTP HMAC-based one time password 706HP Hewlett-Packard 707HPC high performance computing 708HPD hot plug detection 709HPET high precision event timer 710HSM hardware security module 711HSM hierarchical storage management 712HSRP hot standby router protocol 713HT hyper-threading 714HTC hardware thermal control 715HTCC high temperature co-fired ceramic 716HTML HyperText Markup Language 717HTT hyper-threading technology 718HTTP Hypertext Transfer Protocol 719HTTPS Hypertext Transfer Protocol Secure 720HVM hardware virtual machine 721HVDS High-Voltage Differential Signaling 722HWASAN Hardware-assisted Address Sanitizer 723HZ Hertz 724I2O intelligent input/output 725IA information assurance 726IAAS infrastructure as a service 727IANA Internet Assigned Numbers Authority 728IBC iterated block cipher 729IBM International Business Machines 730IBPI international blinking pattern interpretation 731IBS instruction based sampling 732IBSS independent basic service set 733IC integrated circuit 734ICA independent computer architecture 735ICACLS integrity control access control lists 736ICB Internet Citizen's Band 737ICE in-circuit emulator 738ICE internal compiler error 739ICH I/O controller hub 740ICMP Internet Control Message Protocol 741ICT information and communications technology 742ICW initialization command word 743IDA Intel dynamic acceleration 744IDCMP Intuition direct communication message port 745IDCT inverse discrete cosine transform 746IDE integrated development environment 747IDE integrated drive electronics 748IDPS intrusion detection [and] prevention system 749IDRP inter-domain routing protocol 750IDS intrusion detection system 751IDT interrupt descriptor table 752IE Internet Explorer 753IEC International Electrotechnical Commission 754IEEE Institute of Electrical and Electronics Engineers 755IESG Internet Engineering Steering Group 756IETF Internet Engineering Task Force 757IF intermediate frequency 758IFCM isochronous flow control mode 759IFF Interchange File Format 760IFS internal field separator 761IGD Internet gateway device 762IGMP Internet Group Management Protocol 763IGP interior gateway protocol 764IHV independent hardware vendor 765IKE Internet key exchange 766ILM internal loopback mode 767ILOM integrated lights-out management 768ILP instruction level parallelism 769IM instant messaging 770IME input method editor 771IMAP Internet Message Access Protocol 772IMC integrated memory controller 773IMCR interrupt mode configuration register 774IMR interrupt mask register 775IMS information management system 776IMSI international mobile subscriber identity 777INCITS InterNational Committee for Information Technology Standards 778INODE index node 779IO input/output 780IOCTL input/output control 781IOM input/output managers 782IOMMU input/output memory management unit 783IOT Internet of Things 784IP Internet Protocol 785IP intellectual property 786IPC instructions per cycle 787IPC interprocess communication 788IPCF interprocess communication facility 789IPE integrated programming environment 790IPI intelligent peripheral interface 791IPI interprocessor interrupt 792IPL Initial Program Load 793IPL Interrupt Priority Level 794IPMB Intelligent Platform Management Bus 795IPMI Intelligent Platform Management Interface 796IPNG Internet Protocol, Next Generation 797IPS in-plane switching 798IPS intrusion prevention system 799IPSEC Internet Protocol Security 800IRC Internet Relay Chat 801IRDA infrared data association 802IRDP ICMP Router Discovery Protocol 803IR intermediate representation 804IRQ interrupt request 805IRQL interrupt request level 806IRR interrupt request register 807IRTF Internet Research Task Force 808IS information system 809ISA industry standard architecture 810ISA instruction set architecture 811ISE instant secure erase 812ISDN integrated services digital network 813ISI inter-symbol interference 814ISL initial system load 815ISM industrial, scientific, [and] medical 816ISMS information system management system 817ISN initial serial number 818ISO International Standards Organization 819ISOC Internet Society 820ISP Internet service provider 821ISR in-service register 822ISR interrupt service routine 823IST internal spanning tree 824IST interrupt stack table 825ISV independent software vendor 826IT information technology 827ITB Intel Turbo Boost 828ITIL information technology infrastructure library 829ITP in-target probe 830ITSM IT service management 831IV initialization vector 832IVT interrupt vector table 833JBOD just a bunch of disks 834JCL Job Control Language 835JFET junction [gate] field-effect transistor 836JIT just in time 837JPEG Joint Photographic Experts Group 838JRE Java Runtime Environment 839JSON JavaScript Object Notation 840JTAG joint test action group 841KASAN Kernel Address Sanitizer 842KASLR kernel address space layout randomization 843KB keyboard 844KB kilobyte 845KBD keyboard 846KBD kilobaud 847KCS keyboard controller style 848KEM key encapsulation mechanism 849KLOC thousand lines of code 850KMS kernel-mode setting 851KPI kernel programming interface 852KVA kernel virtual address 853KVM kernel virtual machine 854KVM kernel virtual memory 855KVM keyboard, video, [and] mouse 856L2CAP link layer control and adaptation protocol 857LAG link aggregation group 858LAMP Linux Apache MySQL {Perl,PHP,Python} 859LAN local area network 860LAPIC local advanced programmable interrupt controller 861LAR load access rights 862LBA logical block addressing 863LBNF labeled backus-naur form 864LBS location-based service 865LCD liquid crystal display 866LCP link control protocol 867LDA local delivery agent 868LDAP Lightweight Directory Access Protocol 869LDR light-dependent resistor 870LDT local descriptor table 871LE logical extent 872LED light emitting diode 873LELL low energy link layer 874LER label edge router 875LF line feed 876LF low frequency 877LFM lowest frequency mode 878LFN long file names 879LFO low-frequency oscillation 880LFS log-structured file system 881LFU least frequently used 882LHP loop heat pipe 883LIF logical interchange format 884LIFO last in, first out 885LILO LInux LOader 886LILO last in, last out 887LINT local interrupt 888LIR local Internet registry 889LISP LISt Processor 890LISP Locator/ID Separation Protocol 891LKM {Linux,loadable} kernel module 892LKML Linux kernel mailing list 893LL load linked 894LL/SC load linked/store conditional 895LLC logical link control 896LLD low-level design 897LLDD low-level design document 898LLDP link layer discovery protocol 899LLF low level format 900LLMNR link-local multicast name resolution 901LLVM Low Level Virtual Machine 902LM long mode 903LMCE local machine check exception 904LMI local management interface 905LMM link management mode 906LMP link management protocol 907LNO loop nest optimization 908LOC lines of code 909LOM lights-out management 910LPE Linux performance events 911LPC low pin count 912LPS local positioning system 913LRC longitudinal redundancy check 914LRM left-to-right mark 915LRO Large Receive Offload 916LRO left-to-right override 917LRU least recently used 918LS link state 919LSAN Leak Sanitizer 920LSB Linux standards base 921LSB least significant {bit,byte} 922LSI large scale integration 923LSL load segment limit 924LSM log structured merge 925LSN Large Scale NAT 926LSN log sequence number 927LSO large send offload 928LSR label switch router 929LTCC low temperature co-fired ceramic 930LTO linear tape-open 931LTO link time optimization 932LTR left to right 933LTR load task register 934LTR letter(-sized paper) 935LTS long term support 936LUA Lua Uppercase Accident 937LUN logical unit number 938LV logical volume 939LVM logical volume management 940LVT local vector table 941LVDS Low-Voltage Differential Signaling 942LWP light-weight process 943LZSS Lempel Ziv Storer Szymanski 944LZW Lempel Ziv Welch 945MAB MAC authentication bypass 946MAC mandatory access control 947MAC {media,medium} access control 948MAC message authentication {check,code} 949MADT multiple APIC descriptor table 950MAMR microwave-assisted magnetic recording 951MB megabyte 952MBA multi-boot agent 953MBR master boot record 954MBS megabits per second 955MC memory controller 956MCA machine check architecture 957MCA MicroChannel architecture 958MCC multiversion concurrency control 959MCE machine check exception 960MCGA Multi-Color Graphics Array 961MCH memory controller hub 962MCLAG multi-chassis link aggregation group 963MCM multi-chip module 964MCQ memory controlled queue 965MD machine-dependent 966MD MiniDisc 967MD-SAL model-driven service abstraction layer 968MDA mail delivery agent 969MDA Monochrome Display Adapter 970MDC Management Data Clock 971MDI Medium Dependent Interface 972MDI-X Medium Dependent Interface Crossover 973MDIO Management Data Input/Output 974MDMX MIPS Digital Media eXtension 975MDRAM multibank dynamic random access memory 976MESI modified, exclusive, shared, invalid 977MFC merge from current 978MFC Microsoft Foundation Classes 979MFM modified frequency modulation 980MFU most frequently used 981MGCP media gateway control protocol 982MHU message handling unit 983MI machine-independent 984MI machine interface 985MIB management information base 986MIC message integrity {check,code} 987MID mobile Internet device 988MIDI musical instrument digital interface 989MIF management information format 990MII media independent interface 991MIM man in the middle 992MIMD multiple instruction, multiple data 993MIME Multipurpose Internet Mail Extensions 994MIMO multiple input multiple output 995MIPS million instructions per second 996MIPS Microprocessor without Interlocked Pipeline Stages 997MISD multiple instruction, single data 998MIT Massachusetts Institute of Technology 999MITM man in the middle 1000ML machine language 1001ML machine learning 1002ML mailing list 1003ML markup language 1004ML maximum likelihood 1005MLAG multi-chassis link aggregation group 1006MLC multi-level cell 1007MLD multicast listener discovery 1008MLHP micro loop heat pipe 1009MLIR multi-level intermediate representation 1010MMF multi-mode fiber 1011MMIC monolithic microwave integrated circuit 1012MMIO memory mapped input/output 1013MMORPG massive multiplayer online role playing game 1014MMRP multiple MAC registration protocol 1015MMU memory management unit 1016MMX matrix math extension 1017MMX multimedia extension 1018MMX multiple math extension 1019MO magneto-optical 1020MOESI modified, owned, exclusive, shared, invalid 1021MOF maximum operating frequency 1022MOSFET metal-oxide-semiconductor field-effect transistor 1023MOSI modified, owned, shared, invalid 1024MP multi-platform 1025MP multiplayer 1026MP {multiprocessing,multiprocessor} 1027MPEG moving picture experts group 1028MPI message passing interface 1029MPLS Multiprotocol Label Switching 1030MPP massively parallel processor 1031MPS memory pool system 1032MPS multiprocessor specification 1033MQTT Message Queuing Telemetry Transport 1034MR modem ready 1035MRO method resolution order 1036MRP multiple registration protocol 1037MRU most recently used 1038MS Microsoft 1039MSAN Memory Sanitizer 1040MSB most significant {bit,byte} 1041MSC message sequence chart 1042MSE mean square error 1043MSF minutes seconds frames 1044MSI message signaled interrupt 1045MSI modified, shared, invalid 1046MSR {machine state,model-specific} register 1047MSS maximum segment size 1048MSTP Multiple Spanning Tree Protocol 1049MT machine translation 1050MTA mail transfer agent 1051MTBF mean time between failures 1052MTP media transfer protocol 1053MTRR memory type range register 1054MTTF mean time to failure 1055MTU maximum transmission unit 1056MUA mail user agent 1057MUD multi-user domain 1058MVCC multiversion concurrency control 1059MVR multicast VLAN registration 1060MVRP multiple VLAN registration protocol 1061MWE module width encoding 1062MX mail exchange 1063NACK negative acknowledgement 1064NAK negative acknowledgement 1065NAN neighbor awareness networking 1066NAN not a number 1067NAPT Network Address Port Translation 1068NAS network attached storage 1069NAT network address translation 1070NAV network allocation vector 1071NC numerical control 1072NC-SI network controller sideband interface 1073NCO numerically-controlled oscillator 1074NCP Network Control Protocol 1075NCSI network connectivity status indicator 1076NCQ native command queuing 1077ND neighbor discovery 1078NDFA nondeterministic finite automaton 1079NDIS network driver interface specification 1080NE numeric error 1081NEWS Network extensible Window System 1082NFA nondeterministic finite automaton 1083NFC near-field communication 1084NFCI no functional change intended 1085NFS network file system 1086NFV network function virtualization 1087NHACP NABU HCCA Application Communication Protocol 1088NIA next instruction address 1089NIC network information center 1090NIC network interface card 1091NIDS network intrusion detection system 1092NIP network interface protocol 1093NIPS network intrusion prevention system 1094NIS network information service 1095NIST National Institute of Standards and Technology 1096NLS native language support 1097NMI non-maskable interrupt 1098NNTP Network News Transfer Protocol 1099NMR nonce-misuse resistance 1100NOC network operations center 1101NOP no operation 1102NOS network operating system 1103NP nondeterministic polynomial time 1104NRND not recommended for new designs 1105NRZ non-return to zero 1106NSA nation-state adversary 1107NSA no such agency 1108NSA National Security Agency 1109NTM non-deterministic Turing machine 1110NTP Network Time Protocol 1111NUMA non-uniform memory access 1112NURBS non-uniform rational basis spline 1113NVMM NetBSD Virtual Machine Monitor 1114NVMM non-volatile main memory 1115NVRAM non-volatile random access memory 1116NW not write-through 1117NX no execute 1118OAEP optimal asymmetric encryption padding 1119OAM operations, administration, and {management,maintenance} 1120OBO off by one 1121OBOE off by one error 1122OCL object constraint language 1123OCR optical character recognition 1124ODE offline device environment 1125ODI open data-link interface 1126ODM object data manager 1127ODCM on-demand clock modulation 1128ODMR on-demand mail relay 1129ODT on-die termination 1130OEM original equipment manufacturer 1131OFB output feedback 1132OFDM orthogonal frequency division multiplexing 1133OFET organic field-effect transistor 1134OLAP online analytical processing 1135OLE object linking and embedding 1136OLTP online transaction processing 1137ONFI open nand flash interface 1138OO OpenOffice 1139OO object oriented 1140OOB out of band 1141OOE out of order execution 1142OOM out of memory 1143OOO OpenOffice.org 1144OOP object oriented programming 1145OOPS object oriented programming systems 1146OOSE object oriented software engineering 1147OPM operations per minute 1148OPS operations per second 1149OQL Object Query Language 1150ORB object request broker 1151ORM object-relational mapping 1152OS operating system 1153OSD object-based storage device 1154OSD open source definition 1155OSF open software foundation 1156OSI Open Source Initiative 1157OSI open systems interconnection 1158OSPF open shortest path first 1159OSPM OS power management 1160OSS open sound system 1161OSS open source software 1162OSVW operating system visible workarounds 1163OTP one time password 1164OTP open telecom platform 1165OU organizational unit 1166OUI organizationally unique identifier 1167OWASP Open Web Application Security Project 1168OWL Web Ontology Language 1169P2P PCI to PCI 1170P2P peer to peer 1171PA phase accumulator 1172PA physical address 1173PAAS platform as a service 1174PAC phase-amplitude converter 1175PAE physical address extension 1176PAGP port aggregation protocol 1177PAL phase alternating line 1178PAL programmable array logic 1179PAM pluggable authentication modules 1180PAM pulse amplitude modulation 1181PAP password authentication protocol 1182PAT page attribute table 1183PAT port address translation 1184PATA parallel ATA 1185PAX portable archive exchange 1186PBE pending break encoding 1187PBE programming by example 1188PBR partition boot record 1189PBX private branch exchange 1190PC personal computer 1191PC program counter 1192PCB printed circuit board 1193PCB process control block 1194PCB Protocol Control Block 1195PCBC propagating cipher block chaining 1196PCC Portable C Compiler 1197PCD page-level cache disable 1198PCE path computation element 1199PCE performance-monitor counter enable 1200PCEP Path Computation Element Protocol 1201PCH platform controller hub 1202PCI peripheral component interconnect 1203PCM phase change memory 1204PCM pulse code modulation 1205PCMCIA Personal Computer Memory Card International Association 1206PCP Port Control Protocol 1207PD public domain 1208PDA personal digital assistant 1209PDA pushdown automaton 1210PDAG propositional directed acyclic graph 1211PDB power distribution board 1212PDF portable document format 1213PDM pulse-duration modulation 1214PDN pull-down network 1215PDP page {descriptor,directory} page 1216PDS product data sheet 1217PDU protocol data unit 1218PE protection enable 1219PE provider edge 1220PE portable executable 1221PEAP Protected EAP 1222PECI platform environment control interface 1223PEP protocol extension protocol 1224PER packed encoding rules 1225PFS perfect forward secrecy 1226PGAS partitioned global address space 1227PGE page global enable 1228PGO profile guided optimization 1229PGP Pretty Good Privacy 1230PHB PCI host bridge 1231PHP PHP: Hypertext Preprocessor 1232PIC performance instrumentation counters 1233PIC position independent code 1234PIC programmable interrupt controller 1235PICNIC problem in chair, not in computer 1236PID process id 1237PIE position independent executable 1238PIL Priority Interrupt Level 1239PIM personal information manager 1240PIM platform-independent model 1241PIO programmed input/output 1242PIPT physically indexed, physically tagged 1243PIR private information retrieval 1244PIQ prefetch input queue 1245PIT programmable interrupt timer 1246PIV personal identity verification 1247PIX Private Internet eXchange 1248PKCS public-key cryptography standards 1249PKI public key infrastructure 1250PLC programmable logic controller 1251PLD programmable logic device 1252PLL phase locked loop 1253PLRU pseudo LRU 1254PLT procedure linkage table 1255PLTM package level thermal management 1256PM power management 1257PM {phase,pulse} modulation 1258PMC performance monitoring counters 1259PME power management event 1260PMEG page map entry group 1261PMI performance monitoring infrastructure 1262PMI platform management interrupt 1263PMIC power management integrated circuit 1264PMIO port-mapped input/output 1265PMT photo-multiplier tube 1266PMU performance monitoring units 1267PMU power management unit 1268PNG portable network graphics 1269PNP plug and play 1270POE power over ethernet 1271POF probability of failure 1272POP Post Office Protocol 1273POP power on password 1274POR plan of record 1275POSIX Portable Operating System Interface [for Unix] 1276POST power on self test 1277POTS plain old telephone system 1278POWER Performance Optimization With Enhanced RISC 1279POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1280PP pair programming 1281PPB PCI [to] PCI bridge 1282PPC PowerPC 1283PPC Power Performance Computing 1284PPI pixels per inch 1285PPM pages per minute 1286PPP Point-to-Point Protocol 1287PPPOA Point-to-Point Protocol over ATM 1288PPPOE Point-to-Point Protocol over Ethernet 1289PPR processor programming reference 1290PPT powerpoint 1291PPT punched paper tape 1292PPU physics processing unit 1293PQC post-quantum cryptography 1294PRAM Parameter RAM 1295PRBS pseudorandom bit sequence 1296PRG pseudorandom generator 1297PRF pseudorandom function [family] 1298PRML partial response, maximum likelihood 1299PRN pseudorandom {noise,number} 1300PRNG pseudorandom number generator 1301PROM programmable read only memory 1302PRP pseudorandom permutation 1303PRU Programmable Realtime Unit 1304PS PostScript 1305PSD power spectral density 1306PSE page size extensions 1307PSK phase shift keying 1308PSK pre-shared key 1309PSTN public switched telephone network 1310PSW program status word 1311PTE page table entry 1312PTLA pseudo top level aggregator 1313PTP page table page 1314PTV perceived target value 1315PU processing unit 1316PUC personal unblocking code 1317PUN physical unit number 1318PV physical volume 1319PVC permanent virtual circuit 1320PVG physical volume group 1321PVI protected-mode virtual interrupt 1322PVRST Per-VLAN rapid spanning tree 1323PVST Per-VLAN Spanning Tree 1324PWM pulse width modulation 1325PXE preboot execution environment 1326QA quality assurance 1327QAM quadrature amplitude modulation 1328QAM quality assurance management 1329QBE query by example 1330QC quality control 1331QDI quasi delay insensitive 1332QCIF quarter common intermediate format 1333QOI quality of implementation 1334QOI quick order interface 1335QOS quality of service 1336QVL qualified vendor list 1337R/O read only 1338R/W read/write 1339RA receiver address 1340RA remote assistance 1341RA resource affinity 1342RA router advertisement 1343RAD rapid application development 1344RADIUS remote authentication dial-in user service 1345RAID redundant array of {independent,inexpensive} disks 1346RAII resource acquisition is initialization 1347RAM random access memory 1348RAS reliability, availability and serviceability 1349RAS remote access service 1350RAS restartable atomic sequence 1351RAS row address strobe 1352RBF radial basis function 1353RBL reputation block list 1354RBL real-time blackhole list 1355RBNF routing backus-naur form 1356RBT red-black tree 1357RC release candidate 1358RC remote control 1359RC run commands 1360RCS Revision Control System 1361RCU read, copy, update 1362RDB Rigid Disk Block 1363RDBMS relational database management system 1364RDF Resource Description Framework 1365RDM relational data model 1366RDMA remote direct memory access 1367RDP remote desktop protocol 1368RDRAM Rambus DRAM 1369RE regular expression 1370REPL read, evaluate, print, loop 1371REST representational state transfer 1372RF radio frequency 1373RFB remote frame buffer 1374RFI radio frequency interference 1375RFO request for ownership 1376RFU reserved for future use 1377RGB red green blue 1378RGBA red green blue alpha 1379RGMII reduced gigabit media independent interface 1380RH read hit 1381RHEL Red Hat Enterprise Linux 1382RHL Red Hat Linux 1383RIB routing information base 1384RIFF Resource Interchange File Format 1385RIP Raster Image Processor 1386RIP Routing Information Protocol 1387RIR regional Internet registry 1388RISC reduced instruction set {computer,computing} 1389RKM ROM Kernel Manual 1390RLE run length encoding 1391RLL run length limited 1392RLO right-to-left override 1393RM read miss 1394RMCP Remote Management Control Protocol 1395RMI remote method invocation 1396RMO Relaxed Memory Ordering 1397RMPM rapid memory power management 1398RMS root mean square 1399RMW read, modify, write 1400RNG random number generator 1401ROM read only memory 1402ROP return-oriented programming 1403RPC remote procedure call 1404RPG Report Program Generator 1405RPKI resource PKI 1406RPL requested privilege level 1407RPM revolutions per minute 1408RPN reverse Polish notation 1409RPVST Rapid Per-VLAN Spanning Tree 1410RR random replacement 1411RR round robin 1412RS relay station 1413RSA Rivest, Shamir, [and] Adleman 1414RSC Receive Segment Coalescing 1415RSIP Realm Specific IP 1416RSN Robust Secure Network 1417RSS really simple syndication 1418RSS Receive Side Scaling 1419RSS residual sum of squares 1420RSTP Rapid Spanning Tree Protocol 1421RT real time 1422RTC real time clock 1423RTC real time computing 1424RTF rich text format 1425RTL register transfer language 1426RTL resistor-transistor logic 1427RTL right to left 1428RTOS real time operating system 1429RTP Real-time Transport Protocol 1430RTS request to send 1431RTT round trip time 1432RTTI run-time type information 1433RUP rational unified process 1434RW Rabin-Williams 1435RWM read-write memory 1436RX {receive,receiver} 1437S/PDIF Sony/Philips Digital Interface Format 1438SA security advisory 1439SA security association 1440SA source address 1441SA structured analysis 1442SAAS software as a service 1443SABRE Semi-automated business research environment 1444SACD super audio compact disc 1445SAD security association database 1446SAF-TE SCSI accessed fault-tolerant enclosure 1447SAGE Semi-automated ground environment 1448SAL {service,system} abstraction layer 1449SAM serial access memory 1450SAM sum addressed memory 1451SAML security assertion markup language 1452SAN storage area network 1453SAP service access point 1454SAPIC streamlined advanced programmable interrupt controller 1455SASD structured analysis, structured design 1456SASI Shugart Associates System Interface 1457SASL simple authentication [and] security layer 1458SATA serial advanced technology attachment 1459SAX simple API for XML 1460SB sound blaster 1461SBSA server base system architecture 1462SBU standard build unit 1463SC store conditional 1464SCA source code analyzer 1465SCADA supervisory control and data acquisition 1466SCC single chip cloud 1467SCC source code control 1468SCCP skinny call control protocol 1469SCCS Source Code Control System 1470SCI scalable coherent interface 1471SCI system control interrupt 1472SCIM smart common input method 1473SCM software configuration management 1474SCM source code management 1475SCM storage-class memory 1476SCO synchronous connection orientated 1477SCP secure copy 1478SCP system control processor 1479SCPI system control and power interface 1480SCSI Small Computer System Interface 1481SCTP Stream Control Transmission Protocol 1482SDDC software defined data center 1483SDEI software delegated exception interface 1484SDI symbol deinterleave 1485SDK software development kit 1486SDL Simple Declarative Language 1487SDL Simple Direct-media Layer 1488SDLC {software,system,systems} development life cycle 1489SDN software defined networking 1490SDP Session Description Protocol 1491SDR software defined radio 1492SDRAM synchronous dynamic random access memory 1493SDS software defined storage 1494SDT syntax-directed translation 1495SEA synchronous external abort 1496SEGV segmentation violation 1497SED self-encrypting drive 1498SED stream editor 1499SEMB serial ATA enclosure management bridge 1500SEO search engine optimization 1501SES SCSI enclosure services 1502SFC sequential function chart 1503SFI simple firmware interface 1504SFI software fault isolation 1505SFTP SSH File Transfer Protocol 1506SFTP Serial File Transfer Protocol 1507SFTP Simple File Transfer Protocol 1508SGI Silicon Graphics, Inc 1509SGI software generated interrupt 1510SGMII serial gigabit media independent interface 1511SGPIO serial general purpose input/output 1512SGRAM synchronous graphics random access memory 1513SHA secure hash algorithm 1514SICP structure and interpretation of computer programs 1515SIDH supersingular isogeny Diffie-Hellman 1516SIEM security information and event management 1517SIF source input format 1518SIFS short inter-frame space 1519SIM subscriber identity module 1520SIMD single instruction, multiple data 1521SIMM single inline memory module 1522SIP Session Initiation Protocol 1523SIR signal-to-interference ratio 1524SIR slow infrared 1525SISD single instruction, single data 1526SIV synthetic intialization vector 1527SLAAC stateless address auto-configuration 1528SLC single-level cell 1529SLDRAM synchronous-link dynamic random access memory 1530SLED single large expensive disk 1531SLI scalable link interface 1532SLI scan-line interleave 1533SLIC system license internal code 1534SLOC source lines of code 1535SLRU segmented LRU 1536SMA smart memory access 1537SMAF system management action field 1538SMAP Simple Mail Access Protocol 1539SMAP supervisor mode access prevention 1540SMART self-monitoring analysis and reporting technology 1541SMB Server Message Block 1542SMB system management bus 1543SMBIOS System Management BIOS 1544SMC system management controller 1545SMD storage module device 1546SMEP supervisor mode execution protection 1547SMF single mode fiber 1548SMI structure of management information 1549SMI system management interrupt 1550SMM system management mode 1551SMP serial management protocol 1552SMP symmetric multiprocessing 1553SMR shingled magnetic recording 1554SMR state machine replication 1555SMT simultaneous multithreading 1556SMTP Simple Mail Transfer Protocol 1557SMU system management unit 1558SNA systems network architecture 1559SNAP Sub-Network Access Protocol 1560SNIA Storage Networking Industry Association 1561SNMP Simple Network Management Protocol 1562SNR signal-to-noise ratio 1563SOA service oriented architecture 1564SOAP Simple Object Access Protocol 1565SOC system on chip 1566SOF start of frame 1567SOH start of header 1568SOHO small office/home office 1569SOL serial over LAN 1570SOM system on module 1571SP service pack 1572SP stack pointer 1573SPA storage pool allocator 1574SPAN switched port analyzer 1575SPARC scalable processor architecture 1576SPARQL SPARQL Protocol and RDF Query Language 1577SPD security policy database 1578SPD serial presence detect 1579SPDIF Sony/Philips digital interface format 1580SPI serial peripheral interface 1581SPI stateful packet inspection 1582SPIR standard portable intermediate representation 1583SPL system interrupt priority level 1584SPL spinlock 1585SPMD single process, multiple data 1586SPR special purpose register 1587SPT sectors per track 1588SQA software quality assurance 1589SQCIF sub quarter common intermediate format 1590SQL Structured Query Language 1591SRAM static random access memory 1592SRC sample rate conversion 1593SRP SCSI RDMA protocol 1594SRR shaped round robin 1595SRTP Secure Real-time Transport Protocol 1596SS self-snoop 1597SS stack segment 1598SSA static single assignment 1599SSAP source service access point 1600SSB single-sideband modulation 1601SSC spread spectrum clock 1602SSD solid state drive 1603SSE streaming SIMD extensions 1604SSFDC solid state floppy disc card 1605SSH secure shell 1606SSI server side includes 1607SSID service set identifier 1608SSTP secure socket tunneling protocol 1609SSL secure sockets layer 1610SSP stack smashing protection 1611STC software thermal control 1612STD state transition diagram 1613STM software transactional memory 1614STOMP Streaming Text Oriented Messaging Protocol 1615STP Spanning Tree Protocol 1616STP shielded twisted pair 1617STRG spanning tree root guard 1618SUN Stanford University Network 1619SUS Single Unix Specification 1620SUT system under test 1621SVC switched virtual circuit 1622SVG scalable vector graphics 1623SVGA Super Video Graphics Array 1624SVI {switch,switched} virtual interface 1625SVM secure virtual machine 1626SVM support vector machine 1627SVR System V Release 1628SVS Separate Virtual Space 1629SWF Shockwave Flash 1630SWIG simplified wrapper [and] interface generator 1631SYR symbol timing recovery 1632TA test assertion 1633TA transmitter address 1634TACACS terminal access controller access-control system 1635TAI international atomic time 1636TAO track at once 1637TAOCP The Art of Computer Programming 1638TAP Test Anything Protocol 1639TAS test and set 1640TB terabyte 1641TBNF transitional backus-naur form 1642TCB trace capture buffer 1643TCB trusted computing base 1644TCC thermal control circuit 1645TCL tool command language 1646TCP Transmission Control Protocol 1647TCQ tagged command queueing 1648TDC time [to] digital converter 1649TDD test-driven development 1650TDD time division duplex 1651TDM time division multiplexing 1652TDMA time division multiple access 1653TDOA time difference of arrival 1654TDP thermal design {point,power} 1655TDR time-domain reflectometry 1656TECO Text Editor and Corrector 1657TEE Trusted Execution Environment 1658TFT thin film transistor 1659TFTP Trivial File Transfer Protocol 1660TIAS try it and see 1661TIFF tagged image file format 1662TITS try it to see 1663TK temporal key 1664TKIP Temporal Key Integrity Protocol 1665TLA top level aggregator 1666TLB translation lookaside buffer 1667TLD top level domain 1668TLER time-limited error recovery 1669TLI transport layer interface 1670TLS thread local storage 1671TLS transport layer security 1672TM Turing machine 1673TM thermal monitor 1674TMG transmogrifier 1675TMDS transition minimized differential signaling 1676TMO timeout 1677TOD time of day 1678TOE TCP offload engine 1679TOFU trust on first use 1680TOS terms of service 1681TOS trusted operating system 1682TOS type of service 1683TOTP time-based one time password 1684TP transaction processing 1685TPI tracks per inch 1686TPM transactions per minute 1687TPM trusted platform module 1688TPR task priority register 1689TPS transactions per second 1690TPS transmission parameters signaling 1691TR task register 1692TR token ring 1693TRL timing recovery loop 1694TRNG true random number generator 1695TS terminal services 1696TS time series 1697TS time stamp 1698TS transport stream 1699TSAN Thread Sanitizer 1700TSC time stamp counter 1701TSD time stamp disable 1702TSDB time series database 1703TSL test, set, lock 1704TSO time sharing option 1705TSO TCP segmentation offload 1706TSO Total Store Ordering 1707TSP Time-Stamp Protocol 1708TSP Tunnel Setup Protocol 1709TSP time synchronization protocol 1710TSP traveling salesman problem 1711TSS task state segment 1712TSV tab-separated values 1713TTL time to live 1714TTL transistor-transistor logic 1715TTM translation table maps 1716TTY teletype 1717TU translation unit 1718TUI {terminal,text-based,textual} user interface 1719TX {transmit out,transmitter} 1720TXG transaction group 1721TZ time zone 1722UAC user {access,account} control 1723UAF use-after-free 1724UART universal asynchronous receiver/transmitter 1725UAT user acceptance testing 1726UB undefined behavior 1727UBSAN Undefined Behavior Sanitizer 1728UC uncacheable 1729UCS uniform-cost search 1730UCS unified computing system 1731UCS universal coded character set 1732UDI uniform driver interface 1733UDMA ultra DMA 1734UDO ultra density optical 1735UDP User Datagram Protocol 1736UDS Unix Domain Socket 1737UEFI unified extensible firmware interface 1738UFO UDP fragmentation offload 1739UFS Unix File System 1740UGA universal graphics adapter 1741UI unit interval 1742UI user interface 1743UICC universal integrated circuit card 1744UID unique identifier 1745UID user identifier 1746UL upload 1747UMA uniform memory access 1748UMA upper memory area 1749UMB upper memory block 1750UML unified modeling language 1751UMPC ultra-mobile PC 1752UPNP universal plug and play 1753UPS uninterruptible power supply 1754URI uniform resource identifier 1755URL uniform resource locator 1756URN uniform resource name 1757USART universal synchronous/asynchronous receiver/transmitter 1758USB universal serial bus 1759USWC uncacheable speculative write combining 1760UT unit test 1761UTC coordinated universal time 1762UTF unicode transformation formats 1763UTP unshielded twisted pair 1764UTS UNIX time-sharing 1765UUCP Unix-to-Unix Copy Protocol 1766UUID universally unique identifier 1767UUOC useless use of cat 1768UUT unit under test 1769UX user experience 1770VA vertical alignment 1771VA virtual address 1772VA volt-ampere 1773VAX virtual address extension 1774VB Visual Basic 1775VBR volume boot record 1776VCA variable-gain amplifier 1777VCC common collector voltage 1778VCCP virtual chassis control protocol 1779VCF voltage-controlled filter 1780VCM virtual channel memory 1781VCO voltage-controlled oscillator 1782VCP virtual chassis port 1783VCS version control system 1784VDPAU Video Decode and Presentation API for Unix 1785VES virtual execution system 1786VESA Video Electronics Standards Association 1787VFO variable-frequency oscillator 1788VFS virtual file system 1789VG volume group 1790VGA Video Graphics Array 1791VHDCI very high density cable interconnect 1792VID {VLAN,voltage level} identifier 1793VIM Vi IMproved 1794VIPT virtually indexed, physically tagged 1795VIVT virtually indexed, virtually tagged 1796VLAN virtual local area network 1797VLD variable-length decoding 1798VLIW very long instruction word 1799VLSI very large scale integration 1800VLSM variable length subnet mask 1801VM virtual {machine,memory} 1802VME virtual mode extension 1803VMX vector multimedia extensions 1804VMX virtual machine extensions 1805VNC virtual network computing 1806VOD video on demand 1807VPD vital product data 1808VPN virtual private network 1809VPWS virtual private wire service 1810VR virtual reality 1811VRAM video random access memory 1812VRF virtual routing and forwarding 1813VRM voltage regulator module 1814VROC Virtual RAID On CPU 1815VRRP Virtual Router Redundancy Protocol 1816VSTP VLAN Spanning Tree Protocol 1817VTP VLAN Trunking Protocol 1818VXFS Veritas file system 1819VXVM Veritas volume manager 1820W watt 1821W3C World Wide Web Consortium 1822WAFL write anywhere file layout 1823WAMP Web Application Messaging Protocol 1824WAN wide area network 1825WAP Wireless Application Protocol 1826WAP wireless access point 1827WDM Windows Driver Model 1828WDDM Windows Display Driver Model 1829WDT watchdog timer 1830WEP Wired Equivalent Privacy 1831WFI wait for interrupt 1832WFQ weighted fair queuing 1833WH write hit 1834WHEA Windows hardware error architecture 1835WIFI wireless fidelity 1836WLAN wireless local area network 1837WM write miss 1838WMF Windows meta file 1839WMI Windows Management Instrumentation 1840WOL Wake-on-LAN 1841WOM Wake-on-Modem 1842WOR Wake-on-Ring 1843WORM write once read many 1844WP WordPerfect 1845WP word processor 1846WP write protect 1847WPA Wi-Fi Protected Access 1848WPA2 Wi-Fi Protected Access II 1849WPAD web proxy auto-discovery protocol 1850WPS Wi-Fi Protected Setup 1851WRAM window random access memory 1852WS web services 1853WTC write through caching 1854WTD weighted tail drop 1855WWAN wireless wide area network 1856WWW world wide web 1857WYSIAYG what you see is all you get 1858WYSIWYG what you see is what you get 1859XBAR crossbar 1860XDMCP X Display Manager control protocol 1861XER XML encoding rules 1862XGA Extended Graphics Array 1863XHR XMLHttpRequest 1864XIP execute in place 1865XML Extensible Markup Language 1866XNA XNA's not acronymed 1867XNS Xerox network systems 1868XOR exclusive or 1869XP extreme programming 1870XSI X/Open System Interface 1871XSL extensible stylesheet language 1872XSLT extensible stylesheet language transformations 1873XSS cross site scripting 1874XT extended technology 1875XTACACS extended terminal access controller access-control system 1876XTI X/Open transport interface 1877XUL XML user interface language 1878YACC yet another compiler compiler 1879YAML YAML ain't markup language 1880YANG yet another next generation 1881YAWPFAPR you are welcome; please file a problem report 1882YP Yellow Pages 1883YTD year to date 1884ZAP ZFS attribute processor 1885ZBR zone bit recording 1886ZFOD zero-filled on demand 1887ZFS zettabyte file system 1888ZIF zero insertion force 1889ZIFS zero insertion force socket 1890ZIL ZFS intent log 1891ZMA zone multicast address 1892ZOI zero one infinity 1893ZOI zone of influence 1894ZPL ZFS Posix layer 1895ZVOL ZFS Volume 1896