acronyms.comp revision 1.351
1$NetBSD: acronyms.comp,v 1.351 2023/04/04 20:13:02 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 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 314CRL carrier recovery loop 315CRLF carriage return line feed 316CSPM cloud security posture management 317CSU C start up 318CRT cathode ray tube 319CRTP curiously recurring template pattern 320CRUD create, read, update, and delete 321CS cable select 322CS chip select 323CS code segment 324CS computer science 325CSDL {common,conceptual} schema definition language 326CSI channel state information 327CSI common system interface 328CSMA carrier sense multiple access 329CSMA/CA carrier sense multiple access with collision avoidance 330CSMA/CD carrier sense multiple access with collision detection 331CSP communicating sequential processes 332CSP content security policy 333CSP constrain satisfaction problems 334CSP cryptographic service provider 335CSR control [and] status registers 336CSRG Computer Systems Research Group 337CSS cascading style sheets 338CST common spanning tree 339CSV comma-separated values 340CTF compact c type format 341CTM close to metal 342CTR counter [mode] 343CTS clear to send 344CTS common type system 345CUA common user access 346CUT coordinated universal time 347CV control voltage 348CVE common vulnerabilities and exposures 349CVS Concurrent Versions System 350DA destination address 351DAA distributed application architecture 352DAAP digital audio access protocol 353DAB digital audio broadcasting 354DAC digital [to] analog converter 355DAC discretionary access control 356DAD duplicate address detection 357DANE DNS-based Authentication of Named Entities 358DAO disk at once 359DAP Directory Access Protocol 360DAT digital audio tape 361DAT dynamic acceleration technology 362DB database 363DBA database administrator 364DBA dynamic bandwidth allocation 365DBB data bus buffer 366DBC design by contract 367DBL dynamic buffer limiting 368DBMS database management system 369DBS database server 370DC data center 371DC direct current 372DCC Direct Client-to-Client 373DCC direct cable connect 374DCD data carrier detect 375DCE data control equipment 376DCE distributed computing environment 377DCIM data center infrastructure management 378DCIM digital camera images 379DCL Digital Command Language 380DCOM distributed component object model 381DCOP Desktop COmmunication Protocol 382DCS data collection systems 383DCT discrete cosine transform 384DCU data cache unit 385DDC display data channel 386DDE dynamic data exchange 387DDI device drivers interface 388DDK device driver kit 389DDL data description language 390DDR double data rate 391DDS direct digital sound 392DDWG Digital Display Working Group 393DE debugging extensions 394DE desktop environment 395DEA data encryption algorithm 396DEC Digital Equipment Corporation 397DEK data encryption key 398DEP data execution prevention 399DER distinguished encoding rules 400DES Data Encryption Standard 401DF don't fragment 402DFA deterministic finite automaton 403DFC data flow control 404DFS depth first search 405DFS distributed file system 406DFSAN Data Flow Sanitizer 407DFT diagnostic function test 408DFT discrete Fourier transform 409DGL data generation language 410DGEMM double precision general matrix multiply 411DH Diffie-Hellman 412DHCP Dynamic Host Configuration Protocol 413DIA dedicated Internet access 414DIB device independent bitmap 415DIFS distributed inter-frame space 416DIMM dual inline memory module 417DIRT design in real time 418DKI driver/kernel interface 419DL diode logic 420DL discrete logarithm 421DL download 422DLCI data link connection identifier 423DLE data link escape 424DLL dynamic link library 425DLNA digital living network alliance 426DLP discrete logarithm problem 427DMA direct memory access 428DMI desktop management interface 429DMS document management system 430DMT discrete multitone modulation 431DMU data management layer 432DNARD Digital network appliance reference design 433DND drag and drop 434DNLC directory name lookup cache 435DNS Domain Name System 436DNSBL Domain Name System Block List 437DNSSEC DNS Security Extensions 438DOE distributed object environment 439DOF data over fibre 440DOM document object model 441DOS denial of service 442DOS disk operating system 443DP DisplayPort 444DPC deferred procedure call 445DPCM differential pulse code modulation 446DPD dead peer detection 447DPI deep packet inspection 448DPI dots per inch 449DPL descriptor privilege level 450DPS Display PostScript 451DPST display power savings technology 452DRAAS disaster recovery as a service 453DRAM dynamic random access memory 454DRBG deterministic random bit generator 455DRI direct rendering infrastructure 456DRM digital rights management 457DRM direct rendering manager 458DRRS display refresh rate switching 459DS debug store 460DS differentiated services 461DS9000 DeathStation 9000 462DS9K DeathStation 9000 463DSA digital signature algorithm 464DSAP destination service access point 465DSB double-sideband modulation 466DSCP differentiated services code point 467DSDT differentiated system descriptor table 468DSF device special file 469DSL dataset and snapshot layer 470DSL digital subscriber line 471DSL domain specific language 472DSLAM digital subscriber line access multiplexer 473DSN delivery status notification 474DSO dynamic shared object 475DSP digital signal processor 476DSSS direct sequence spread spectrum 477DTB device tree blob 478DTC device tree compiler 479DTD document type definition 480DTE data terminal equipment 481DTE dumb terminal emulator 482DTL diode-transistor logic 483DTLS datagram transport layer security 484DTS device tree source 485DTS digital thermal sensor 486DUT device under test 487DVB digital video broadcasting 488DVCS distributed version control system 489DVD digital versatile disc 490DVFS dynamic voltage and frequency scaling 491DVI device independent 492DVI Digital Visual Interface 493DVR digital video recorder 494DWARF Debugging With Attributed Record Formats 495E-XER extended XML encoding rules 496EABI embedded-application binary interface 497EAI Email Address Internationalization 498EAI Enterprise Application Integration 499EAP Extensible Authentication Protocol 500EAPOL EAP over Lan 501EAV entity-attribute-value model 502EAV ethernet audio/video bridging 503EBCDIC Extended Binary Coded Decimal Interchange Code 504EBDA Extended BIOS Data Area 505EBNF extended backus-naur form 506EBR extended boot record 507EC elliptic curve 508ECC elliptic curve cryptography 509ECC error correction code 510ECDH elliptic curve Diffie-Hellman 511ECDL elliptic curve discrete logarithm 512ECDLP elliptic curve discrete logarithm problem 513ECDSA elliptic curve digital signature algorithm 514ECL emitter-coupled logic 515ECN explicit congestion notification 516ECP enhanced capability port 517ECS enhanced chip set 518ECS extended configuration space 519EDAC error detection and correction 520EDAT enhanced dynamic acceleration technology 521EdDSA Edwards curve digital signature algorithm 522EDGE explicit data graph execution 523EDID extended display identification data 524EDO extended data out 525EDS electronical data sheet 526EDSAC electronic delay storage automatic calculator 527EDVAC electronic discrete variable automatic computer 528EEE energy efficient ethernet 529EEE embrace, extend, extinguish 530EEPROM electrically erasable programmable read only memory 531EFI extensible firmware interface 532EFL emitter follower logic 533EFM eight to fourteen modulation 534EFS extent file system 535EGA Enhanced Graphics Adapter 536EGP exterior gateway protocol 537EH extension header 538EIDE enhanced IDE 539EISA extended industry standard architecture 540EINJ error injection table 541ELF executable and linking format 542ELS entry level system 543EMI electro-magnetic interference 544EMP electro-magnetic pulse 545EMR electro-magnetic radiation 546EMACS Editor MACroS 547ENIAC electronic numerical integrator and computer 548EOF end of file 549EOI end of interrupt 550EOIS end of interactive support 551EOL end of life 552EOL end of line 553EOT end of transmission 554EPIC explicitly parallel instruction computing 555EPP enhanced parallel port 556EPRML extended partial response, maximum likelihood 557EPROM erasable programmable read only memory 558EPT extended page tables 559ERC error recovery control 560ERD emergency recovery disk 561ERD entity relationship diagram 562ERE extended regular expression 563ERST error record serialization table 564ESAN Efficiency Sanitizer 565ESB enterprise service bus 566ESDI enhanced small disk interface 567ESDRAM enhanced synchronous dynamic random access memory 568ESI enclosure services interface 569ESS electronic switching system 570ESS extended service set 571ESSID extended service set identifier 572EST enhanced speedstep 573ETL extract, transform, load 574EU execution unit 575EULA end user license agreement 576FAT file allocation table 577FBRAM frame buffer random access memory 578FCIF full common intermediate format 579FCL fiber channel loop 580FCS frame check sequence 581FDC floppy disk controller 582FDD floppy disk drive 583FDDI fiber distributed data interface 584FDE full disk encryption 585FDT flattened device tree 586FEA finite element analysis 587FEC forward error correction 588FET field-effect transistor 589FF finite field 590FF form feed 591FFDH finite-field Diffie-Hellman 592FFH functional fixed hardware 593FFI foreign function interface 594FFM focus follows mouse 595FFS Fast File System 596FFS find first set 597FFT fast Fourier transform 598FG floating gate 599FHRP first hop redundancy protocol 600FHSS frequency hop spread spectrum 601FID frequency identifier 602FIFO first in, first out 603FILO first in, last out 604FIPS Federal Information Processing Standards 605FIR fast infrared 606FLOPS floating [point] operations per second 607FLOSS free/libre/open source software 608FM frequency modulation 609FMR false match rate 610FOSS free/open source software 611FPGA field programmable gate array 612FPM fast page mode 613FPR floating point register 614FPU floating point unit 615FQDN fully qualified domain name 616FRR false rejection rate 617FRU field replaceable unit 618FS file system 619FSB front side bus 620FSCK file system check 621FSF Free Software Foundation 622FSK frequency shift keying 623FSM finite-state machine 624FTA fault tree analysis 625FTL flash translation layer 626FTP File Transfer Protocol 627FTPS File Transfer Protocol Secure 628FTTH fiber to the home 629FUS fast user switching 630FWH firmware hub 631FWS folding white space 632GAL generic array logic 633GARP generic attribute registration protocol 634GAS generic address structure 635GC garbage collector 636GCC GNU Compiler Collection 637GCM Galois counter mode 638GCR group-coded recording 639GDI Graphics Device Interface 640GDT global descriptor table 641GECOS general comprehensive operating supervisor 642GEM graphics environment manager 643GEM graphics execution manager 644GEMM general matrix multiply 645GENA general event notification architecture 646GHC Glasgow Haskell compiler 647GHES generic hardware error source 648GIC generic interrupt controller 649GID group identifier 650GIF graphics interchange format 651GLBP gateway load balancing protocol 652GMCH graphics and memory controller hub 653GNU GNU's Not Unix 654GOP graphics output protocol 655GOT global offset table 656GPE general purpose event 657GPF general protection fault 658GPG GNU Privacy Guard 659GPL [GNU] General Public License 660GPR general purpose register 661GPS generalized processor sharing 662GPT GUID partition table 663GPU graphics processing unit 664GR golden ratio 665GRE generic routing encapsulation 666GRO generic receive offload 667GSI global system interrupt 668GSO generic send offload 669GUI graphical user interface 670GUID globally unique identifier 671GUS Gravis UltraSound 672GVFS git virtual file system 673HA high availability 674HAL hardware abstraction layer 675HAT hashed array tree 676HATEOAS hypermedia as the engine of application state 677HBA host bus adapter 678HCC Home Cable Computer 679HCCA Home Cable Computer Adaptor 680HCF halt and catch fire 681HCI host controller interface 682HCI human-computer interaction 683HCL hardware compatibility list 684HDCP High-bandwidth Digital Content Protection 685HDD hard disk drive 686HDL hardware description language 687HDMI High-Definition Multimedia Interface 688HDTV high-definition television 689HECI host embedded controller interface 690HEST hardware error source table 691HEVC high efficiency video coding 692HF high frequency 693HFM highest frequency mode 694HFS hierarchical file system 695HID human interface device 696HKDF HMAC-based key derivation function 697HKP HTTP Keyserver Protocol 698HLL high-level language 699HMA high memory area 700HMI human-machine interface 701HOOD hierarchical object oriented design 702HOTP HMAC-based one time password 703HP Hewlett-Packard 704HPC high performance computing 705HPD hot plug detection 706HPET high precision event timer 707HSM hardware security module 708HSM hierarchical storage management 709HSRP hot standby router protocol 710HT hyper-threading 711HTC hardware thermal control 712HTCC high temperature co-fired ceramic 713HTML HyperText Markup Language 714HTT hyper-threading technology 715HTTP Hypertext Transfer Protocol 716HTTPS Hypertext Transfer Protocol Secure 717HVM hardware virtual machine 718HVDS High-Voltage Differential Signaling 719HWASAN Hardware-assisted Address Sanitizer 720HZ Hertz 721I2O intelligent input/output 722IA information assurance 723IAAS infrastructure as a service 724IANA Internet Assigned Numbers Authority 725IBC iterated block cipher 726IBM International Business Machines 727IBPI international blinking pattern interpretation 728IBS instruction based sampling 729IBSS independent basic service set 730IC integrated circuit 731ICA independent computer architecture 732ICACLS integrity control access control lists 733ICB Internet Citizen's Band 734ICE in-circuit emulator 735ICE internal compiler error 736ICH I/O controller hub 737ICMP Internet Control Message Protocol 738ICT information and communications technology 739ICW initialization command word 740IDA Intel dynamic acceleration 741IDCMP Intuition direct communication message port 742IDCT inverse discrete cosine transform 743IDE integrated development environment 744IDE integrated drive electronics 745IDPS intrusion detection [and] prevention system 746IDRP inter-domain routing protocol 747IDS intrusion detection system 748IDT interrupt descriptor table 749IE Internet Explorer 750IEC International Electrotechnical Commission 751IEEE Institute of Electrical and Electronics Engineers 752IESG Internet Engineering Steering Group 753IETF Internet Engineering Task Force 754IF intermediate frequency 755IFCM isochronous flow control mode 756IFF Interchange File Format 757IFS internal field separator 758IGD Internet gateway device 759IGMP Internet Group Management Protocol 760IGP interior gateway protocol 761IHV independent hardware vendor 762IKE Internet key exchange 763ILM internal loopback mode 764ILOM integrated lights-out management 765ILP instruction level parallelism 766IM instant messaging 767IME input method editor 768IMAP Internet Message Access Protocol 769IMC integrated memory controller 770IMCR interrupt mode configuration register 771IMR interrupt mask register 772IMS information management system 773IMSI international mobile subscriber identity 774INCITS InterNational Committee for Information Technology Standards 775INODE index node 776IO input/output 777IOCTL input/output control 778IOM input/output managers 779IOMMU input/output memory management unit 780IOT Internet of Things 781IP Internet Protocol 782IP intellectual property 783IPC instructions per cycle 784IPC interprocess communication 785IPCF interprocess communication facility 786IPE integrated programming environment 787IPI intelligent peripheral interface 788IPI interprocessor interrupt 789IPL Initial Program Load 790IPL Interrupt Priority Level 791IPMB Intelligent Platform Management Bus 792IPMI Intelligent Platform Management Interface 793IPNG Internet Protocol, Next Generation 794IPS in-plane switching 795IPS intrusion prevention system 796IPSEC Internet Protocol Security 797IRC Internet Relay Chat 798IRDA infrared data association 799IRDP ICMP Router Discovery Protocol 800IR intermediate representation 801IRQ interrupt request 802IRQL interrupt request level 803IRR interrupt request register 804IRTF Internet Research Task Force 805IS information system 806ISA industry standard architecture 807ISA instruction set architecture 808ISE instant secure erase 809ISDN integrated services digital network 810ISI inter-symbol interference 811ISL initial system load 812ISM industrial, scientific, [and] medical 813ISMS information system management system 814ISN initial serial number 815ISO International Standards Organization 816ISOC Internet Society 817ISP Internet service provider 818ISR in-service register 819ISR interrupt service routine 820IST internal spanning tree 821IST interrupt stack table 822ISV independent software vendor 823IT information technology 824ITB Intel Turbo Boost 825ITIL information technology infrastructure library 826ITP in-target probe 827ITSM IT service management 828IV initialization vector 829IVT interrupt vector table 830JBOD just a bunch of disks 831JCL Job Control Language 832JFET junction [gate] field-effect transistor 833JIT just in time 834JPEG Joint Photographic Experts Group 835JRE Java Runtime Environment 836JSON JavaScript Object Notation 837JTAG joint test action group 838KASAN Kernel Address Sanitizer 839KASLR kernel address space layout randomization 840KB keyboard 841KB kilobyte 842KBD keyboard 843KBD kilobaud 844KCS keyboard controller style 845KEM key encapsulation mechanism 846KLOC thousand lines of code 847KMS kernel-mode setting 848KPI kernel programming interface 849KVA kernel virtual address 850KVM kernel virtual machine 851KVM kernel virtual memory 852KVM keyboard, video, [and] mouse 853L2CAP link layer control and adaptation protocol 854LAG link aggregation group 855LAMP Linux Apache MySQL {Perl,PHP,Python} 856LAN local area network 857LAPIC local advanced programmable interrupt controller 858LAR load access rights 859LBA logical block addressing 860LBNF labeled backus-naur form 861LBS location-based service 862LCD liquid crystal display 863LCP link control protocol 864LDA local delivery agent 865LDAP Lightweight Directory Access Protocol 866LDR light-dependent resistor 867LDT local descriptor table 868LE logical extent 869LED light emitting diode 870LELL low energy link layer 871LER label edge router 872LF line feed 873LF low frequency 874LFM lowest frequency mode 875LFN long file names 876LFO low-frequency oscillation 877LFS log-structured file system 878LFU least frequently used 879LHP loop heat pipe 880LIF logical interchange format 881LIFO last in, first out 882LILO LInux LOader 883LILO last in, last out 884LINT local interrupt 885LIR local Internet registry 886LISP LISt Processor 887LISP Locator/ID Separation Protocol 888LKM {Linux,loadable} kernel module 889LKML Linux kernel mailing list 890LL load linked 891LL/SC load linked/store conditional 892LLC logical link control 893LLD low-level design 894LLDD low-level design document 895LLDP link layer discovery protocol 896LLF low level format 897LLMNR link-local multicast name resolution 898LLVM Low Level Virtual Machine 899LM long mode 900LMCE local machine check exception 901LMI local management interface 902LMM link management mode 903LMP link management protocol 904LNO loop nest optimization 905LOC lines of code 906LOM lights-out management 907LPE Linux performance events 908LPC low pin count 909LPS local positioning system 910LRC longitudinal redundancy check 911LRM left-to-right mark 912LRO left-to-right override 913LRU least recently used 914LS link state 915LSAN Leak Sanitizer 916LSB Linux standards base 917LSB least significant {bit,byte} 918LSI large scale integration 919LSL load segment limit 920LSM log structured merge 921LSN Large Scale NAT 922LSN log sequence number 923LSO large send offload 924LSR label switch router 925LTCC low temperature co-fired ceramic 926LTO linear tape-open 927LTO link time optimization 928LTR left to right 929LTR load task register 930LTR letter(-sized paper) 931LTS long term support 932LUA Lua Uppercase Accident 933LUN logical unit number 934LV logical volume 935LVM logical volume management 936LVT local vector table 937LVDS Low-Voltage Differential Signaling 938LWP light-weight process 939LZSS Lempel Ziv Storer Szymanski 940LZW Lempel Ziv Welch 941MAB MAC authentication bypass 942MAC mandatory access control 943MAC {media,medium} access control 944MAC message authentication {check,code} 945MADT multiple APIC descriptor table 946MAMR microwave-assisted magnetic recording 947MB megabyte 948MBA multi-boot agent 949MBR master boot record 950MBS megabits per second 951MC memory controller 952MCA machine check architecture 953MCA MicroChannel architecture 954MCC multiversion concurrency control 955MCE machine check exception 956MCGA Multi-Color Graphics Array 957MCH memory controller hub 958MCLAG multi-chassis link aggregation group 959MCM multi-chip module 960MCQ memory controlled queue 961MD machine-dependent 962MD MiniDisc 963MD-SAL model-driven service abstraction layer 964MDA mail delivery agent 965MDA Monochrome Display Adapter 966MDC Management Data Clock 967MDI Medium Dependent Interface 968MDI-X Medium Dependent Interface Crossover 969MDIO Management Data Input/Output 970MDMX MIPS Digital Media eXtension 971MDRAM multibank dynamic random access memory 972MESI modified, exclusive, shared, invalid 973MFC merge from current 974MFC Microsoft Foundation Classes 975MFM modified frequency modulation 976MFU most frequently used 977MGCP media gateway control protocol 978MHU message handling unit 979MI machine-independent 980MI machine interface 981MIB management information base 982MIC message integrity {check,code} 983MID mobile Internet device 984MIDI musical instrument digital interface 985MIF management information format 986MII media independent interface 987MIM man in the middle 988MIMD multiple instruction, multiple data 989MIME Multipurpose Internet Mail Extensions 990MIMO multiple input multiple output 991MIPS million instructions per second 992MIPS Microprocessor without Interlocked Pipeline Stages 993MISD multiple instruction, single data 994MIT Massachusetts Institute of Technology 995MITM man in the middle 996ML machine language 997ML machine learning 998ML mailing list 999ML markup language 1000ML maximum likelihood 1001MLAG multi-chassis link aggregation group 1002MLC multi-level cell 1003MLD multicast listener discovery 1004MLHP micro loop heat pipe 1005MLIR multi-level intermediate representation 1006MMF multi-mode fiber 1007MMIC monolithic microwave integrated circuit 1008MMIO memory mapped input/output 1009MMORPG massive multiplayer online role playing game 1010MMRP multiple MAC registration protocol 1011MMU memory management unit 1012MMX matrix math extension 1013MMX multimedia extension 1014MMX multiple math extension 1015MO magneto-optical 1016MOESI modified, owned, exclusive, shared, invalid 1017MOF maximum operating frequency 1018MOSFET metal-oxide-semiconductor field-effect transistor 1019MOSI modified, owned, shared, invalid 1020MP multi-platform 1021MP multiplayer 1022MP {multiprocessing,multiprocessor} 1023MPEG moving picture experts group 1024MPI message passing interface 1025MPLS Multiprotocol Label Switching 1026MPP massively parallel processor 1027MPS memory pool system 1028MPS multiprocessor specification 1029MQTT Message Queuing Telemetry Transport 1030MR modem ready 1031MRO method resolution order 1032MRP multiple registration protocol 1033MRU most recently used 1034MS Microsoft 1035MSAN Memory Sanitizer 1036MSB most significant {bit,byte} 1037MSC message sequence chart 1038MSE mean square error 1039MSF minutes seconds frames 1040MSI message signaled interrupt 1041MSI modified, shared, invalid 1042MSR {machine state,model-specific} register 1043MSS maximum segment size 1044MSTP Multiple Spanning Tree Protocol 1045MT machine translation 1046MTA mail transfer agent 1047MTBF mean time between failures 1048MTP media transfer protocol 1049MTRR memory type range register 1050MTTF mean time to failure 1051MTU maximum transmission unit 1052MUA mail user agent 1053MUD multi-user domain 1054MVCC multiversion concurrency control 1055MVR multicast VLAN registration 1056MVRP multiple VLAN registration protocol 1057MWE module width encoding 1058MX mail exchange 1059NACK negative acknowledgement 1060NAK negative acknowledgement 1061NAN neighbor awareness networking 1062NAN not a number 1063NAPT Network Address Port Translation 1064NAS network attached storage 1065NAT network address translation 1066NAV network allocation vector 1067NC numerical control 1068NC-SI network controller sideband interface 1069NCO numerically-controlled oscillator 1070NCP Network Control Protocol 1071NCSI network connectivity status indicator 1072NCQ native command queuing 1073ND neighbor discovery 1074NDFA nondeterministic finite automaton 1075NDIS network driver interface specification 1076NE numeric error 1077NEWS Network extensible Window System 1078NFA nondeterministic finite automaton 1079NFC near-field communication 1080NFCI no functional change intended 1081NFS network file system 1082NFV network function virtualization 1083NHACP NABU HCCA Application Communication Protocol 1084NIA next instruction address 1085NIC network information center 1086NIC network interface card 1087NIDS network intrusion detection system 1088NIP network interface protocol 1089NIPS network intrusion prevention system 1090NIS network information service 1091NIST National Institute of Standards and Technology 1092NLS native language support 1093NMI non-maskable interrupt 1094NNTP Network News Transfer Protocol 1095NMR nonce-misuse resistance 1096NOC network operations center 1097NOP no operation 1098NOS network operating system 1099NP nondeterministic polynomial time 1100NRND not recommended for new designs 1101NRZ non-return to zero 1102NSA nation-state adversary 1103NSA no such agency 1104NSA National Security Agency 1105NTM non-deterministic Turing machine 1106NTP Network Time Protocol 1107NUMA non-uniform memory access 1108NURBS non-uniform rational basis spline 1109NVMM NetBSD Virtual Machine Monitor 1110NVMM non-volatile main memory 1111NVRAM non-volatile random access memory 1112NW not write-through 1113NX no execute 1114OAEP optimal asymmetric encryption padding 1115OAM operations, administration, and {management,maintenance} 1116OBO off by one 1117OBOE off by one error 1118OCL object constraint language 1119OCR optical character recognition 1120ODE offline device environment 1121ODI open data-link interface 1122ODM object data manager 1123ODCM on-demand clock modulation 1124ODMR on-demand mail relay 1125ODT on-die termination 1126OEM original equipment manufacturer 1127OFB output feedback 1128OFDM orthogonal frequency division multiplexing 1129OFET organic field-effect transistor 1130OLAP online analytical processing 1131OLE object linking and embedding 1132OLTP online transaction processing 1133ONFI open nand flash interface 1134OO OpenOffice 1135OO object oriented 1136OOB out of band 1137OOE out of order execution 1138OOM out of memory 1139OOO OpenOffice.org 1140OOP object oriented programming 1141OOPS object oriented programming systems 1142OOSE object oriented software engineering 1143OPM operations per minute 1144OPS operations per second 1145OQL Object Query Language 1146ORB object request broker 1147ORM object-relational mapping 1148OS operating system 1149OSD object-based storage device 1150OSD open source definition 1151OSF open software foundation 1152OSI Open Source Initiative 1153OSI open systems interconnection 1154OSPF open shortest path first 1155OSPM OS power management 1156OSS open sound system 1157OSS open source software 1158OSVW operating system visible workarounds 1159OTP one time password 1160OTP open telecom platform 1161OU organizational unit 1162OUI organizationally unique identifier 1163OWASP Open Web Application Security Project 1164OWL Web Ontology Language 1165P2P PCI to PCI 1166P2P peer to peer 1167PA phase accumulator 1168PA physical address 1169PAAS platform as a service 1170PAC phase-amplitude converter 1171PAE physical address extension 1172PAGP port aggregation protocol 1173PAL phase alternating line 1174PAL programmable array logic 1175PAM pluggable authentication modules 1176PAM pulse amplitude modulation 1177PAP password authentication protocol 1178PAT page attribute table 1179PAT port address translation 1180PATA parallel ATA 1181PAX portable archive exchange 1182PBE pending break encoding 1183PBE programming by example 1184PBR partition boot record 1185PBX private branch exchange 1186PC personal computer 1187PC program counter 1188PCB printed circuit board 1189PCB process control block 1190PCB Protocol Control Block 1191PCBC propagating cipher block chaining 1192PCC Portable C Compiler 1193PCD page-level cache disable 1194PCE path computation element 1195PCE performance-monitor counter enable 1196PCEP Path Computation Element Protocol 1197PCH platform controller hub 1198PCI peripheral component interconnect 1199PCM phase change memory 1200PCM pulse code modulation 1201PCMCIA Personal Computer Memory Card International Association 1202PCP Port Control Protocol 1203PD public domain 1204PDA personal digital assistant 1205PDA pushdown automaton 1206PDAG propositional directed acyclic graph 1207PDB power distribution board 1208PDF portable document format 1209PDM pulse-duration modulation 1210PDN pull-down network 1211PDP page {descriptor,directory} page 1212PDS product data sheet 1213PDU protocol data unit 1214PE protection enable 1215PE provider edge 1216PE portable executable 1217PEAP Protected EAP 1218PECI platform environment control interface 1219PEP protocol extension protocol 1220PER packed encoding rules 1221PFS perfect forward secrecy 1222PGAS partitioned global address space 1223PGE page global enable 1224PGO profile guided optimization 1225PGP Pretty Good Privacy 1226PHB PCI host bridge 1227PHP PHP: Hypertext Preprocessor 1228PIC performance instrumentation counters 1229PIC position independent code 1230PIC programmable interrupt controller 1231PICNIC problem in chair, not in computer 1232PID process id 1233PIE position independent executable 1234PIL Priority Interrupt Level 1235PIM personal information manager 1236PIM platform-independent model 1237PIO programmed input/output 1238PIPT physically indexed, physically tagged 1239PIR private information retrieval 1240PIQ prefetch input queue 1241PIT programmable interrupt timer 1242PIV personal identity verification 1243PIX Private Internet eXchange 1244PKCS public-key cryptography standards 1245PKI public key infrastructure 1246PLC programmable logic controller 1247PLD programmable logic device 1248PLL phase locked loop 1249PLRU pseudo LRU 1250PLT procedure linkage table 1251PLTM package level thermal management 1252PM power management 1253PM {phase,pulse} modulation 1254PMC performance monitoring counters 1255PME power management event 1256PMEG page map entry group 1257PMI performance monitoring infrastructure 1258PMI platform management interrupt 1259PMIC power management integrated circuit 1260PMIO port-mapped input/output 1261PMT photo-multiplier tube 1262PMU performance monitoring units 1263PMU power management unit 1264PNG portable network graphics 1265PNP plug and play 1266POE power over ethernet 1267POF probability of failure 1268POP Post Office Protocol 1269POP power on password 1270POR plan of record 1271POSIX Portable Operating System Interface [for Unix] 1272POST power on self test 1273POTS plain old telephone system 1274POWER Performance Optimization With Enhanced RISC 1275POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1276PP pair programming 1277PPB PCI [to] PCI bridge 1278PPC PowerPC 1279PPC Power Performance Computing 1280PPI pixels per inch 1281PPM pages per minute 1282PPP Point-to-Point Protocol 1283PPPOA Point-to-Point Protocol over ATM 1284PPPOE Point-to-Point Protocol over Ethernet 1285PPR processor programming reference 1286PPT powerpoint 1287PPT punched paper tape 1288PPU physics processing unit 1289PQC post-quantum cryptography 1290PRAM Parameter RAM 1291PRBS pseudorandom bit sequence 1292PRG pseudorandom generator 1293PRF pseudorandom function [family] 1294PRML partial response, maximum likelihood 1295PRN pseudorandom {noise,number} 1296PRNG pseudorandom number generator 1297PROM programmable read only memory 1298PRP pseudorandom permutation 1299PRU Programmable Realtime Unit 1300PS PostScript 1301PSD power spectral density 1302PSE page size extensions 1303PSK phase shift keying 1304PSK pre-shared key 1305PSTN public switched telephone network 1306PSW program status word 1307PTE page table entry 1308PTLA pseudo top level aggregator 1309PTP page table page 1310PTV perceived target value 1311PU processing unit 1312PUC personal unblocking code 1313PUN physical unit number 1314PV physical volume 1315PVC permanent virtual circuit 1316PVG physical volume group 1317PVI protected-mode virtual interrupt 1318PVRST Per-VLAN rapid spanning tree 1319PVST Per-VLAN Spanning Tree 1320PWM pulse width modulation 1321PXE preboot execution environment 1322QA quality assurance 1323QAM quadrature amplitude modulation 1324QAM quality assurance management 1325QBE query by example 1326QC quality control 1327QDI quasi delay insensitive 1328QCIF quarter common intermediate format 1329QOI quality of implementation 1330QOI quick order interface 1331QOS quality of service 1332QVL qualified vendor list 1333R/O read only 1334R/W read/write 1335RA receiver address 1336RA remote assistance 1337RA resource affinity 1338RA router advertisement 1339RAD rapid application development 1340RADIUS remote authentication dial-in user service 1341RAID redundant array of {independent,inexpensive} disks 1342RAII resource acquisition is initialization 1343RAM random access memory 1344RAS reliability, availability and serviceability 1345RAS remote access service 1346RAS restartable atomic sequence 1347RAS row address strobe 1348RBF radial basis function 1349RBL reputation block list 1350RBL real-time blackhole list 1351RBNF routing backus-naur form 1352RBT red-black tree 1353RC release candidate 1354RC remote control 1355RC run commands 1356RCS Revision Control System 1357RCU read, copy, update 1358RDB Rigid Disk Block 1359RDBMS relational database management system 1360RDF Resource Description Framework 1361RDM relational data model 1362RDMA remote direct memory access 1363RDP remote desktop protocol 1364RDRAM Rambus DRAM 1365RE regular expression 1366REPL read, evaluate, print, loop 1367REST representational state transfer 1368RF radio frequency 1369RFB remote frame buffer 1370RFI radio frequency interference 1371RFO request for ownership 1372RFU reserved for future use 1373RGB red green blue 1374RGBA red green blue alpha 1375RGMII reduced gigabit media independent interface 1376RH read hit 1377RHEL Red Hat Enterprise Linux 1378RHL Red Hat Linux 1379RIB routing information base 1380RIFF Resource Interchange File Format 1381RIP Raster Image Processor 1382RIP Routing Information Protocol 1383RIR regional Internet registry 1384RISC reduced instruction set {computer,computing} 1385RKM ROM Kernel Manual 1386RLE run length encoding 1387RLL run length limited 1388RLO right-to-left override 1389RM read miss 1390RMCP Remote Management Control Protocol 1391RMI remote method invocation 1392RMO Relaxed Memory Ordering 1393RMPM rapid memory power management 1394RMS root mean square 1395RMW read, modify, write 1396RNG random number generator 1397ROM read only memory 1398ROP return-oriented programming 1399RPC remote procedure call 1400RPG Report Program Generator 1401RPKI resource PKI 1402RPL requested privilege level 1403RPM revolutions per minute 1404RPN reverse Polish notation 1405RPVST Rapid Per-VLAN Spanning Tree 1406RR random replacement 1407RR round robin 1408RS relay station 1409RSA Rivest, Shamir, [and] Adleman 1410RSIP Realm Specific IP 1411RSN Robust Secure Network 1412RSS really simple syndication 1413RSS Receive Side Scaling 1414RSS residual sum of squares 1415RSTP Rapid Spanning Tree Protocol 1416RT real time 1417RTC real time clock 1418RTC real time computing 1419RTF rich text format 1420RTL register transfer language 1421RTL resistor-transistor logic 1422RTL right to left 1423RTOS real time operating system 1424RTP Real-time Transport Protocol 1425RTS request to send 1426RTT round trip time 1427RTTI run-time type information 1428RUP rational unified process 1429RW Rabin-Williams 1430RWM read-write memory 1431RX {receive,receiver} 1432S/PDIF Sony/Philips Digital Interface Format 1433SA security advisory 1434SA security association 1435SA source address 1436SA structured analysis 1437SAAS software as a service 1438SABRE Semi-automated business research environment 1439SACD super audio compact disc 1440SAD security association database 1441SAF-TE SCSI accessed fault-tolerant enclosure 1442SAGE Semi-automated ground environment 1443SAL {service,system} abstraction layer 1444SAM serial access memory 1445SAM sum addressed memory 1446SAML security assertion markup language 1447SAN storage area network 1448SAP service access point 1449SAPIC streamlined advanced programmable interrupt controller 1450SASD structured analysis, structured design 1451SASI Shugart Associates System Interface 1452SASL simple authentication [and] security layer 1453SATA serial advanced technology attachment 1454SAX simple API for XML 1455SB sound blaster 1456SBSA server base system architecture 1457SBU standard build unit 1458SC store conditional 1459SCA source code analyzer 1460SCADA supervisory control and data acquisition 1461SCC single chip cloud 1462SCC source code control 1463SCCP skinny call control protocol 1464SCCS Source Code Control System 1465SCI scalable coherent interface 1466SCI system control interrupt 1467SCIM smart common input method 1468SCM software configuration management 1469SCM source code management 1470SCM storage-class memory 1471SCO synchronous connection orientated 1472SCP secure copy 1473SCP system control processor 1474SCPI system control and power interface 1475SCSI Small Computer System Interface 1476SCTP Stream Control Transmission Protocol 1477SDDC software defined data center 1478SDEI software delegated exception interface 1479SDI symbol deinterleave 1480SDK software development kit 1481SDL Simple Declarative Language 1482SDL Simple Direct-media Layer 1483SDLC {software,system,systems} development life cycle 1484SDN software defined networking 1485SDP Session Description Protocol 1486SDR software defined radio 1487SDRAM synchronous dynamic random access memory 1488SDS software defined storage 1489SDT syntax-directed translation 1490SEA synchronous external abort 1491SEGV segmentation violation 1492SED self-encrypting drive 1493SED stream editor 1494SEMB serial ATA enclosure management bridge 1495SEO search engine optimization 1496SES SCSI enclosure services 1497SFC sequential function chart 1498SFI simple firmware interface 1499SFI software fault isolation 1500SFTP SSH File Transfer Protocol 1501SFTP Serial File Transfer Protocol 1502SFTP Simple File Transfer Protocol 1503SGI Silicon Graphics, Inc 1504SGI software generated interrupt 1505SGMII serial gigabit media independent interface 1506SGPIO serial general purpose input/output 1507SGRAM synchronous graphics random access memory 1508SHA secure hash algorithm 1509SICP structure and interpretation of computer programs 1510SIDH supersingular isogeny Diffie-Hellman 1511SIEM security information and event management 1512SIF source input format 1513SIFS short inter-frame space 1514SIM subscriber identity module 1515SIMD single instruction, multiple data 1516SIMM single inline memory module 1517SIP Session Initiation Protocol 1518SIR signal-to-interference ratio 1519SIR slow infrared 1520SISD single instruction, single data 1521SIV synthetic intialization vector 1522SLAAC stateless address auto-configuration 1523SLC single-level cell 1524SLDRAM synchronous-link dynamic random access memory 1525SLED single large expensive disk 1526SLI scalable link interface 1527SLI scan-line interleave 1528SLIC system license internal code 1529SLOC source lines of code 1530SLRU segmented LRU 1531SMA smart memory access 1532SMAF system management action field 1533SMAP Simple Mail Access Protocol 1534SMAP supervisor mode access prevention 1535SMART self-monitoring analysis and reporting technology 1536SMB Server Message Block 1537SMB system management bus 1538SMBIOS System Management BIOS 1539SMC system management controller 1540SMD storage module device 1541SMEP supervisor mode execution protection 1542SMF single mode fiber 1543SMI structure of management information 1544SMI system management interrupt 1545SMM system management mode 1546SMP serial management protocol 1547SMP symmetric multiprocessing 1548SMR shingled magnetic recording 1549SMR state machine replication 1550SMT simultaneous multithreading 1551SMTP Simple Mail Transfer Protocol 1552SMU system management unit 1553SNA systems network architecture 1554SNAP Sub-Network Access Protocol 1555SNIA Storage Networking Industry Association 1556SNMP Simple Network Management Protocol 1557SNR signal-to-noise ratio 1558SOA service oriented architecture 1559SOAP Simple Object Access Protocol 1560SOC system on chip 1561SOF start of frame 1562SOH start of header 1563SOHO small office/home office 1564SOL serial over LAN 1565SOM system on module 1566SP service pack 1567SP stack pointer 1568SPA storage pool allocator 1569SPAN switched port analyzer 1570SPARC scalable processor architecture 1571SPARQL SPARQL Protocol and RDF Query Language 1572SPD security policy database 1573SPD serial presence detect 1574SPDIF Sony/Philips digital interface format 1575SPI serial peripheral interface 1576SPI stateful packet inspection 1577SPIR standard portable intermediate representation 1578SPL system interrupt priority level 1579SPL spinlock 1580SPMD single process, multiple data 1581SPR special purpose register 1582SPT sectors per track 1583SQA software quality assurance 1584SQCIF sub quarter common intermediate format 1585SQL Structured Query Language 1586SRAM static random access memory 1587SRC sample rate conversion 1588SRP SCSI RDMA protocol 1589SRR shaped round robin 1590SRTP Secure Real-time Transport Protocol 1591SS self-snoop 1592SS stack segment 1593SSA static single assignment 1594SSAP source service access point 1595SSB single-sideband modulation 1596SSC spread spectrum clock 1597SSD solid state drive 1598SSE streaming SIMD extensions 1599SSFDC solid state floppy disc card 1600SSH secure shell 1601SSI server side includes 1602SSID service set identifier 1603SSTP secure socket tunneling protocol 1604SSL secure sockets layer 1605SSP stack smashing protection 1606STC software thermal control 1607STD state transition diagram 1608STM software transactional memory 1609STOMP Streaming Text Oriented Messaging Protocol 1610STP Spanning Tree Protocol 1611STP shielded twisted pair 1612STRG spanning tree root guard 1613SUN Stanford University Network 1614SUS Single Unix Specification 1615SUT system under test 1616SVC switched virtual circuit 1617SVG scalable vector graphics 1618SVGA Super Video Graphics Array 1619SVI {switch,switched} virtual interface 1620SVM secure virtual machine 1621SVM support vector machine 1622SVR System V Release 1623SVS Separate Virtual Space 1624SWF Shockwave Flash 1625SWIG simplified wrapper [and] interface generator 1626SYR symbol timing recovery 1627TA test assertion 1628TA transmitter address 1629TACACS terminal access controller access-control system 1630TAI international atomic time 1631TAO track at once 1632TAOCP The Art of Computer Programming 1633TAP Test Anything Protocol 1634TAS test and set 1635TB terabyte 1636TBNF transitional backus-naur form 1637TCB trace capture buffer 1638TCB trusted computing base 1639TCC thermal control circuit 1640TCL tool command language 1641TCP Transmission Control Protocol 1642TCQ tagged command queueing 1643TDC time [to] digital converter 1644TDD test-driven development 1645TDD time division duplex 1646TDM time division multiplexing 1647TDMA time division multiple access 1648TDOA time difference of arrival 1649TDP thermal design {point,power} 1650TDR time-domain reflectometry 1651TECO Text Editor and Corrector 1652TEE Trusted Execution Environment 1653TFT thin film transistor 1654TFTP Trivial File Transfer Protocol 1655TIAS try it and see 1656TIFF tagged image file format 1657TITS try it to see 1658TK temporal key 1659TKIP Temporal Key Integrity Protocol 1660TLA top level aggregator 1661TLB translation lookaside buffer 1662TLD top level domain 1663TLER time-limited error recovery 1664TLI transport layer interface 1665TLS thread local storage 1666TLS transport layer security 1667TM Turing machine 1668TM thermal monitor 1669TMG transmogrifier 1670TMDS transition minimized differential signaling 1671TMO timeout 1672TOD time of day 1673TOE TCP offload engine 1674TOFU trust on first use 1675TOS terms of service 1676TOS trusted operating system 1677TOS type of service 1678TOTP time-based one time password 1679TP transaction processing 1680TPI tracks per inch 1681TPM transactions per minute 1682TPM trusted platform module 1683TPR task priority register 1684TPS transactions per second 1685TPS transmission parameters signaling 1686TR task register 1687TR token ring 1688TRL timing recovery loop 1689TRNG true random number generator 1690TS terminal services 1691TS time series 1692TS time stamp 1693TS transport stream 1694TSAN Thread Sanitizer 1695TSC time stamp counter 1696TSD time stamp disable 1697TSDB time series database 1698TSL test, set, lock 1699TSO time sharing option 1700TSO TCP segmentation offload 1701TSO Total Store Ordering 1702TSP Time-Stamp Protocol 1703TSP Tunnel Setup Protocol 1704TSP time synchronization protocol 1705TSP traveling salesman problem 1706TSS task state segment 1707TSV tab-separated values 1708TTL time to live 1709TTL transistor-transistor logic 1710TTM translation table maps 1711TTY teletype 1712TU translation unit 1713TUI {terminal,text-based,textual} user interface 1714TX {transmit out,transmitter} 1715TXG transaction group 1716TZ time zone 1717UAC user {access,account} control 1718UAF use-after-free 1719UART universal asynchronous receiver/transmitter 1720UAT user acceptance testing 1721UB undefined behavior 1722UBSAN Undefined Behavior Sanitizer 1723UC uncacheable 1724UCS uniform-cost search 1725UCS unified computing system 1726UCS universal coded character set 1727UDI uniform driver interface 1728UDMA ultra DMA 1729UDO ultra density optical 1730UDP User Datagram Protocol 1731UEFI unified extensible firmware interface 1732UFO UDP fragmentation offload 1733UFS Unix File System 1734UGA universal graphics adapter 1735UI unit interval 1736UI user interface 1737UICC universal integrated circuit card 1738UID unique identifier 1739UID user identifier 1740UL upload 1741UMA uniform memory access 1742UMA upper memory area 1743UMB upper memory block 1744UML unified modeling language 1745UMPC ultra-mobile PC 1746UPNP universal plug and play 1747UPS uninterruptible power supply 1748URI uniform resource identifier 1749URL uniform resource locator 1750URN uniform resource name 1751USART universal synchronous/asynchronous receiver/transmitter 1752USB universal serial bus 1753USWC uncacheable speculative write combining 1754UT unit test 1755UTC coordinated universal time 1756UTF unicode transformation formats 1757UTP unshielded twisted pair 1758UTS UNIX time-sharing 1759UUCP Unix-to-Unix Copy Protocol 1760UUID universally unique identifier 1761UUOC useless use of cat 1762UUT unit under test 1763UX user experience 1764VA vertical alignment 1765VA virtual address 1766VA volt-ampere 1767VAX virtual address extension 1768VB Visual Basic 1769VBR volume boot record 1770VCA variable-gain amplifier 1771VCC common collector voltage 1772VCCP virtual chassis control protocol 1773VCF voltage-controlled filter 1774VCM virtual channel memory 1775VCO voltage-controlled oscillator 1776VCP virtual chassis port 1777VCS version control system 1778VDPAU Video Decode and Presentation API for Unix 1779VES virtual execution system 1780VESA Video Electronics Standards Association 1781VFO variable-frequency oscillator 1782VFS virtual file system 1783VG volume group 1784VGA Video Graphics Array 1785VHDCI very high density cable interconnect 1786VID {VLAN,voltage level} identifier 1787VIM Vi IMproved 1788VIPT virtually indexed, physically tagged 1789VIVT virtually indexed, virtually tagged 1790VLAN virtual local area network 1791VLD variable-length decoding 1792VLIW very long instruction word 1793VLSI very large scale integration 1794VLSM variable length subnet mask 1795VM virtual {machine,memory} 1796VME virtual mode extension 1797VMX vector multimedia extensions 1798VMX virtual machine extensions 1799VNC virtual network computing 1800VOD video on demand 1801VPD vital product data 1802VPN virtual private network 1803VPWS virtual private wire service 1804VR virtual reality 1805VRAM video random access memory 1806VRF virtual routing and forwarding 1807VRM voltage regulator module 1808VROC Virtual RAID On CPU 1809VRRP Virtual Router Redundancy Protocol 1810VSTP VLAN Spanning Tree Protocol 1811VTP VLAN Trunking Protocol 1812VXFS Veritas file system 1813VXVM Veritas volume manager 1814W watt 1815W3C World Wide Web Consortium 1816WAFL write anywhere file layout 1817WAMP Web Application Messaging Protocol 1818WAN wide area network 1819WAP Wireless Application Protocol 1820WAP wireless access point 1821WDM Windows Driver Model 1822WDDM Windows Display Driver Model 1823WDT watchdog timer 1824WEP Wired Equivalent Privacy 1825WFI wait for interrupt 1826WFQ weighted fair queuing 1827WH write hit 1828WHEA Windows hardware error architecture 1829WIFI wireless fidelity 1830WLAN wireless local area network 1831WM write miss 1832WMF Windows meta file 1833WMI Windows Management Instrumentation 1834WOL Wake-on-LAN 1835WOM Wake-on-Modem 1836WOR Wake-on-Ring 1837WORM write once read many 1838WP WordPerfect 1839WP word processor 1840WP write protect 1841WPA Wi-Fi Protected Access 1842WPA2 Wi-Fi Protected Access II 1843WPAD web proxy auto-discovery protocol 1844WPS Wi-Fi Protected Setup 1845WRAM window random access memory 1846WS web services 1847WTC write through caching 1848WTD weighted tail drop 1849WWAN wireless wide area network 1850WWW world wide web 1851WYSIAYG what you see is all you get 1852WYSIWYG what you see is what you get 1853XBAR crossbar 1854XDMCP X Display Manager control protocol 1855XER XML encoding rules 1856XGA Extended Graphics Array 1857XHR XMLHttpRequest 1858XIP execute in place 1859XML Extensible Markup Language 1860XNA XNA's not acronymed 1861XNS Xerox network systems 1862XOR exclusive or 1863XP extreme programming 1864XSI X/Open System Interface 1865XSL extensible stylesheet language 1866XSLT extensible stylesheet language transformations 1867XSS cross site scripting 1868XT extended technology 1869XTACACS extended terminal access controller access-control system 1870XTI X/Open transport interface 1871XUL XML user interface language 1872YACC yet another compiler compiler 1873YAML YAML ain't markup language 1874YANG yet another next generation 1875YAWPFAPR you are welcome; please file a problem report 1876YP Yellow Pages 1877YTD year to date 1878ZAP ZFS attribute processor 1879ZBR zone bit recording 1880ZFOD zero-filled on demand 1881ZFS zettabyte file system 1882ZIF zero insertion force 1883ZIFS zero insertion force socket 1884ZIL ZFS intent log 1885ZMA zone multicast address 1886ZOI zero one infinity 1887ZOI zone of influence 1888ZPL ZFS Posix layer 1889ZVOL ZFS Volume 1890