acronyms.comp revision 1.384
1$NetBSD: acronyms.comp,v 1.384 2023/12/19 15:01:23 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 71APEI ACPI platform error interface 72APFS Apple file system 73API application programming interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APT advanced persistent threat 79APU accelerated processing unit 80AQM active queue management 81ARAT always running APIC timer 82ARC Advanced RISC Computing 83ARC adaptive replacement cache 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 Apple software restore 108ASR address space register 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 162BMIC bus master interface controller 163BMP basic multilingual plane 164BMP bitmap image file 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 200BTB branch target buffer 201BTB board-to-board 202BTC bit test [and] complement 203BTM bus transport mechanism 204BTR bit test [and] reset 205BTS bit test [and] set 206BTS bug tracking system 207BUAG big ugly ASCII graphic 208BW bandwidth 209BWM block-write mode 210CA certificate authority 211CAC cryptographic access control 212CACLS change access control lists 213CAD computer-aided design 214CAM computer assisted manufacturing 215CAM conditional access module 216CAM content addressable memory 217CAN controller area network 218CARP Common Address Redundancy Protocol 219CAS column address strobe 220CAS compare and swap 221CAS computer algebra system 222CASE computer aided software engineering 223CAU control access unit 224CAV constant angular velocity 225CBC cipher block chaining 226CBR constant bit rate 227CC carbon copy 228CCC Chaos Computer Club 229CCD charge coupled device 230CCI co-channel interferer 231CCNUMA cache-coherent non-uniform memory access 232CCTL command completion time limit 233CD cache disable 234CD compact disc 235CDDA compact disc digital audio 236CDL compiler description language 237CDMA code division multiple access 238CDN content delivery network 239CDP Cisco Discovery Protocol 240CDRAM cache dynamic random access memory 241CE customer edge 242CER canonical encoding rules 243CERT computer emergency response team 244CET control flow enforcement technology 245CF compact flash 246CFB cipher feedback 247CFG context-free grammar 248CFG control-flow graph 249CFI control-flow integrity 250CG control gate 251CGA Color Graphics Adapter 252CGI common gateway interface 253CGN Carrier-Grade NAT 254CHAP Challenge-Handshake Authentication Protocol 255CHFS chip file system 256CHS cylinder/head/sector 257CI continuous integration 258CI {common,component} interface 259CIA confidentiality, integrity, availability 260CIDR Classless Inter-Domain Routing 261CIF common intermediate format 262CIFS Common Internet File System 263CIL common intermediate language 264CIR carrier-to-interference ratio 265CIS contact image sensor 266CISC complex instruction set {computer,computing} 267CJK Chinese, Japanese, [and] Korean 268CLF common log format 269CLI command line interface 270CLI common language infrastructure 271CLR common language runtime 272CLS common language specification 273CLTT closed loop thermal throttling 274CLUT color look-up table 275CLV constant linear velocity 276CM configuration management 277CMA concert multithread architecture 278CMC certificate management over CMS 279CMC chassis management controller 280CMC corrected machine check 281CMI control {management,method} interface 282CMOS complementary metal-oxide-semiconductor 283CMP chip multi-processing 284CMS content management system 285CMS cryptographic message syntax 286CMS {configuration,content,course} management system 287CMYK cyan magenta yellow black 288CN {common,canonical} name 289CNA CVE Numbering Authority 290CNC computer numerical control 291CNR carrier-to-noise ratio 292COA change of authority 293COF current operating frequency 294COFDM coded orthogonal frequency division multiplexing 295COFF common object file format 296COM component object model 297COM computer on module 298COMA cache-only memory architecture 299CORBA common object request broker architecture 300COS class of service 301COW copy-on-write 302CP continuous pilot 303CPA chosen-plaintext attack 304CPB core performance boost 305CPC central processor complex 306CPC cpu performance counters 307CPE common phase error 308CPE common platform enumeration 309CPER common platform error record 310CPG clock pulse generator 311CPI cycles per instruction 312CPL current privilege level 313CPLD complex programmable logic device 314CPP C preprocessor 315CPS characters per second 316CPS continuation-passing style 317CPT command pass through 318CPU central processing unit 319CR carriage return 320CRC cyclic redundancy check 321CRDT conflict-free replicated data type 322CRL carrier recovery loop 323CRLF carriage return line feed 324CRQC cryptanalytically relevant quantum computer 325CRT cathode ray tube 326CRTP curiously recurring template pattern 327CRUD create, read, update, and delete 328CS cable select 329CS chip select 330CS code segment 331CS computer science 332CSDL {common,conceptual} schema definition language 333CSI channel state information 334CSI common system interface 335CSIRT computer security incident response team 336CSMA carrier sense multiple access 337CSMA/CA carrier sense multiple access with collision avoidance 338CSMA/CD carrier sense multiple access with collision detection 339CSP communicating sequential processes 340CSP constrain satisfaction problems 341CSP content security policy 342CSP cryptographic service provider 343CSPM cloud security posture management 344CSR control [and] status registers 345CSRF cross-site request forgery 346CSRG Computer Systems Research Group 347CSS cascading style sheets 348CST common spanning tree 349CSU C start up 350CSV comma-separated values 351CTF compact c type format 352CTM close to metal 353CTR counter [mode] 354CTS clear to send 355CTS common type system 356CUA common user access 357CUT coordinated universal time 358CV control voltage 359CVE common vulnerabilities and exposures 360CVS Concurrent Versions System 361CVSS Common Vulnerability Scoring System 362DA destination address 363DAA distributed application architecture 364DAAP digital audio access protocol 365DAB digital audio broadcasting 366DAC digital [to] analog converter 367DAC discretionary access control 368DAD duplicate address detection 369DAE deterministic authenticated encryption 370DANE DNS-based Authentication of Named Entities 371DAO disk at once 372DAP Directory Access Protocol 373DAT digital audio tape 374DAT dynamic acceleration technology 375DB database 376DBA database administrator 377DBA dynamic bandwidth allocation 378DBB data bus buffer 379DBC design by contract 380DBL dynamic buffer limiting 381DBMS database management system 382DBS database server 383DC data center 384DC direct current 385DCC Direct Client-to-Client 386DCC direct cable connect 387DCD data carrier detect 388DCE data control equipment 389DCE distributed computing environment 390DCIM data center infrastructure management 391DCIM digital camera images 392DCL Digital Command Language 393DCOM distributed component object model 394DCOP Desktop COmmunication Protocol 395DCS data collection systems 396DCT discrete cosine transform 397DCU data cache unit 398DDC display data channel 399DDE dynamic data exchange 400DDI device drivers interface 401DDK device driver kit 402DDL data description language 403DDR double data rate 404DDS direct digital sound 405DDWG Digital Display Working Group 406DE debugging extensions 407DE desktop environment 408DEA data encryption algorithm 409DEC Digital Equipment Corporation 410DEK data encryption key 411DEP data execution prevention 412DER distinguished encoding rules 413DES Data Encryption Standard 414DF don't fragment 415DFA deterministic finite automaton 416DFC data flow control 417DFS depth first search 418DFS distributed file system 419DFSAN Data Flow Sanitizer 420DFT diagnostic function test 421DFT discrete Fourier transform 422DFZ default-free zone 423DGEMM double precision general matrix multiply 424DGL data generation language 425DH Diffie-Hellman 426DHCP Dynamic Host Configuration Protocol 427DIA dedicated Internet access 428DIB device independent bitmap 429DIFS distributed inter-frame space 430DIMM dual inline memory module 431DIRT design in real time 432DKI driver/kernel interface 433DL diode logic 434DL discrete logarithm 435DL download 436DLCI data link connection identifier 437DLE data link escape 438DLL dynamic link library 439DLNA digital living network alliance 440DLP discrete logarithm problem 441DMA direct memory access 442DMB data memory barrier (Arm) 443DMI desktop management interface 444DMS document management system 445DMT discrete multitone modulation 446DMU data management layer 447DNARD Digital network appliance reference design 448DND drag and drop 449DNLC directory name lookup cache 450DNS Domain Name System 451DNSBL Domain Name System Block List 452DNSSEC DNS Security Extensions 453DOE distributed object environment 454DOF data over fibre 455DOH DNS over HTTPS 456DOM document object model 457DOQ DNS over QUIC 458DOS denial of service 459DOS disk operating system 460DOT DNS over TLS 461DP DisplayPort 462DPAA data path acceleration architecture 463DPC deferred procedure call 464DPCM differential pulse code modulation 465DPD dead peer detection 466DPDK data plane development kit 467DPI deep packet inspection 468DPI dots per inch 469DPL descriptor privilege level 470DPS Display PostScript 471DPST display power savings technology 472DRAAS disaster recovery as a service 473DRAM dynamic random access memory 474DRBG deterministic random bit generator 475DRI direct rendering infrastructure 476DRM digital rights management 477DRM direct rendering manager 478DRN Discovery of Network-designated Resolvers 479DRRS display refresh rate switching 480DS debug store 481DS differentiated services 482DS9000 DeathStation 9000 483DS9K DeathStation 9000 484DSA digital signature algorithm 485DSAP destination service access point 486DSB data synchronization barrier (Arm) 487DSB double-sideband modulation 488DSCP differentiated services code point 489DSDT differentiated system descriptor table 490DSF device special file 491DSL dataset and snapshot layer 492DSL digital subscriber line 493DSL domain specific language 494DSLAM digital subscriber line access multiplexer 495DSN delivery status notification 496DSO dynamic shared object 497DSP digital signal processor 498DSSS direct sequence spread spectrum 499DTB device tree blob 500DTC device tree compiler 501DTD document type definition 502DTE data terminal equipment 503DTE dumb terminal emulator 504DTL diode-transistor logic 505DTLS datagram transport layer security 506DTS device tree source 507DTS digital thermal sensor 508DUT device under test 509DVB digital video broadcasting 510DVCS distributed version control system 511DVD digital versatile disc 512DVFS dynamic voltage and frequency scaling 513DVI Digital Visual Interface 514DVI device independent 515DVR digital video recorder 516DWARF Debugging With Attributed Record Formats 517E-XER extended XML encoding rules 518EABI embedded-application binary interface 519EAI Email Address Internationalization 520EAI Enterprise Application Integration 521EAP Extensible Authentication Protocol 522EAPOL EAP over Lan 523EAV entity-attribute-value model 524EAV ethernet audio/video bridging 525EBCDIC Extended Binary Coded Decimal Interchange Code 526EBDA Extended BIOS Data Area 527EBNF extended backus-naur form 528EBR extended boot record 529EC elliptic curve 530ECC elliptic curve cryptography 531ECC error correction code 532ECDH elliptic curve Diffie-Hellman 533ECDL elliptic curve discrete logarithm 534ECDLP elliptic curve discrete logarithm problem 535ECDSA elliptic curve digital signature algorithm 536ECL emitter-coupled logic 537ECN explicit congestion notification 538ECP enhanced capability port 539ECS enhanced chip set 540ECS extended configuration space 541EDAC error detection and correction 542EDAT enhanced dynamic acceleration technology 543EDGE explicit data graph execution 544EDID extended display identification data 545EDO extended data out 546EDS electronical data sheet 547EDSAC electronic delay storage automatic calculator 548EDVAC electronic discrete variable automatic computer 549EEE embrace, extend, extinguish 550EEE energy efficient ethernet 551EEPROM electrically erasable programmable read only memory 552EFI extensible firmware interface 553EFL emitter follower logic 554EFM eight to fourteen modulation 555EFS extent file system 556EGA Enhanced Graphics Adapter 557EGP exterior gateway protocol 558EH extension header 559EIDE enhanced IDE 560EINJ error injection table 561EISA extended industry standard architecture 562ELF executable and linking format 563ELS entry level system 564EMACS Editor MACroS 565EMI electro-magnetic interference 566EMP electro-magnetic pulse 567EMR electro-magnetic radiation 568ENIAC electronic numerical integrator and computer 569EOF end of file 570EOI end of interrupt 571EOIS end of interactive support 572EOL end of life 573EOL end of line 574EOT end of transmission 575EPIC explicitly parallel instruction computing 576EPP enhanced parallel port 577EPP extensible provisioning protocol (RFC5730) 578EPRML extended partial response, maximum likelihood 579EPROM erasable programmable read only memory 580EPT extended page tables 581ERC error recovery control 582ERD emergency recovery disk 583ERD entity relationship diagram 584ERE extended regular expression 585ERST error record serialization table 586ESAN Efficiency Sanitizer 587ESB enterprise service bus 588ESDI enhanced small disk interface 589ESDRAM enhanced synchronous dynamic random access memory 590ESI enclosure services interface 591ESS electronic switching system 592ESS extended service set 593ESSID extended service set identifier 594EST enhanced speedstep 595ETL extract, transform, load 596EU execution unit 597EULA end user license agreement 598EdDSA Edwards curve digital signature algorithm 599FAT file allocation table 600FBRAM frame buffer random access memory 601FCIF full common intermediate format 602FCL fiber channel loop 603FCS frame check sequence 604FDC floppy disk controller 605FDD floppy disk drive 606FDDI fiber distributed data interface 607FDE full disk encryption 608FDT flattened device tree 609FEA finite element analysis 610FEC forward error correction 611FET field-effect transistor 612FF finite field 613FF form feed 614FFDH finite-field Diffie-Hellman 615FFH functional fixed hardware 616FFI foreign function interface 617FFM focus follows mouse 618FFS Fast File System 619FFS find first set 620FFT fast Fourier transform 621FG floating gate 622FHRP first hop redundancy protocol 623FHSS frequency hop spread spectrum 624FID frequency identifier 625FIFO first in, first out 626FILO first in, last out 627FIPS Federal Information Processing Standards 628FIR fast infrared 629FLOPS floating [point] operations per second 630FLOSS free/libre/open source software 631FM frequency modulation 632FMR false match rate 633FOSS free/open source software 634FPGA field programmable gate array 635FPM fast page mode 636FPR floating point register 637FPU floating point unit 638FQDN fully qualified domain name 639FRR false rejection rate 640FRR Free Range Routing 641FRU field replaceable unit 642FS file system 643FSB front side bus 644FSCK file system check 645FSF Free Software Foundation 646FSK frequency shift keying 647FSM finite-state machine 648FTA fault tree analysis 649FTL flash translation layer 650FTP File Transfer Protocol 651FTPS File Transfer Protocol Secure 652FTTH fiber to the home 653FUS fast user switching 654FWH firmware hub 655FWS folding white space 656GAL generic array logic 657GARP generic attribute registration protocol 658GAS generic address structure 659GC garbage collector 660GCC GNU Compiler Collection 661GCM Galois counter mode 662GCR group-coded recording 663GDI Graphics Device Interface 664GDT global descriptor table 665GECOS general comprehensive operating supervisor 666GEM graphics environment manager 667GEM graphics execution manager 668GEMM general matrix multiply 669GENA general event notification architecture 670GHC Glasgow Haskell compiler 671GHES generic hardware error source 672GIC generic interrupt controller 673GID group identifier 674GIF graphics interchange format 675GLBP gateway load balancing protocol 676GMCH graphics and memory controller hub 677GNU GNU's Not Unix 678GOP graphics output protocol 679GOT global offset table 680GPE general purpose event 681GPF general protection fault 682GPG GNU Privacy Guard 683GPL [GNU] General Public License 684GPR general purpose register 685GPS generalized processor sharing 686GPT GUID partition table 687GPU graphics processing unit 688GR golden ratio 689GRE generic routing encapsulation 690GRO generic receive offload 691GSI global system interrupt 692GSO generic send offload 693GUI graphical user interface 694GUID globally unique identifier 695GUS Gravis UltraSound 696GVFS git virtual file system 697HA high availability 698HAL hardware abstraction layer 699HAT hashed array tree 700HATEOAS hypermedia as the engine of application state 701HBA host bus adapter 702HCC Home Cable Computer 703HCCA Home Cable Computer Adaptor 704HCF halt and catch fire 705HCI host controller interface 706HCI human-computer interaction 707HCL hardware compatibility list 708HDCP High-bandwidth Digital Content Protection 709HDD hard disk drive 710HDL hardware description language 711HDMI High-Definition Multimedia Interface 712HDTV high-definition television 713HECI host embedded controller interface 714HEST hardware error source table 715HEVC high efficiency video coding 716HF high frequency 717HFM highest frequency mode 718HFS hierarchical file system 719HID human interface device 720HKDF HMAC-based key derivation function 721HKP HTTP Keyserver Protocol 722HLE hardware lock elision (Intel) 723HLL high-level language 724HMA high memory area 725HMI human-machine interface 726HOOD hierarchical object oriented design 727HOTP HMAC-based one time password 728HP Hewlett-Packard 729HPC high performance computing 730HPD hot plug detection 731HPET high precision event timer 732HSM hardware security module 733HSM hierarchical storage management 734HSRP hot standby router protocol 735HT hyper-threading 736HTC hardware thermal control 737HTCC high temperature co-fired ceramic 738HTML HyperText Markup Language 739HTT hyper-threading technology 740HTTP Hypertext Transfer Protocol 741HTTPS Hypertext Transfer Protocol Secure 742HVDS High-Voltage Differential Signaling 743HVM hardware virtual machine 744HWASAN Hardware-assisted Address Sanitizer 745HZ Hertz 746I2O intelligent input/output 747IA information assurance 748IAAS infrastructure as a service 749IAB Internet Architecture Board 750IANA Internet Assigned Numbers Authority 751IBC iterated block cipher 752IBM International Business Machines 753IBPI international blinking pattern interpretation 754IBS instruction based sampling 755IBSS independent basic service set 756IBT indirect branch tracking 757IC integrated circuit 758ICA independent computer architecture 759ICACLS integrity control access control lists 760ICB Internet Citizen's Band 761ICE in-circuit emulator 762ICE internal compiler error 763ICH I/O controller hub 764ICMP Internet Control Message Protocol 765ICT information and communications technology 766ICW initialization command word 767IDA Intel dynamic acceleration 768IDCMP Intuition direct communication message port 769IDCT inverse discrete cosine transform 770IDE integrated development environment 771IDE integrated drive electronics 772IDPS intrusion detection [and] prevention system 773IDRP inter-domain routing protocol 774IDS intrusion detection system 775IDT interrupt descriptor table 776IE Internet Explorer 777IEC International Electrotechnical Commission 778IEEE Institute of Electrical and Electronics Engineers 779IESG Internet Engineering Steering Group 780IETF Internet Engineering Task Force 781IF intermediate frequency 782IFCM isochronous flow control mode 783IFF Interchange File Format 784IFS internal field separator 785IGD Internet gateway device 786IGMP Internet Group Management Protocol 787IGP interior gateway protocol 788IHV independent hardware vendor 789IKE Internet key exchange 790ILM internal loopback mode 791ILOM integrated lights-out management 792ILP instruction level parallelism 793IM instant messaging 794IMAP Internet Message Access Protocol 795IMC integrated memory controller 796IMCR interrupt mode configuration register 797IME input method editor 798IMR interrupt mask register 799IMS information management system 800IMSI international mobile subscriber identity 801INCITS InterNational Committee for Information Technology Standards 802INODE index node 803IO input/output 804IOCTL input/output control 805IOM input/output managers 806IOMMU input/output memory management unit 807IOT Internet of Things 808IP Internet Protocol 809IP intellectual property 810IPC instructions per cycle 811IPC interprocess communication 812IPCF interprocess communication facility 813IPE integrated programming environment 814IPI intelligent peripheral interface 815IPI interprocessor interrupt 816IPL Initial Program Load 817IPL Interrupt Priority Level 818IPMB Intelligent Platform Management Bus 819IPMI Intelligent Platform Management Interface 820IPNG Internet Protocol, Next Generation 821IPS in-plane switching 822IPS intrusion prevention system 823IPSEC Internet Protocol Security 824IR intermediate representation 825IRC Internet Relay Chat 826IRDA infrared data association 827IRDP ICMP Router Discovery Protocol 828IRQ interrupt request 829IRQL interrupt request level 830IRR interrupt request register 831IRTF Internet Research Task Force 832IS information system 833ISA industry standard architecture 834ISA instruction set architecture 835ISB instruction synchronization barrier (Arm) 836ISDN integrated services digital network 837ISE instant secure erase 838ISI inter-symbol interference 839ISL initial system load 840ISM industrial, scientific, [and] medical 841ISMS information system management system 842ISN initial serial number 843ISO International Standards Organization 844ISOC Internet Society 845ISP Internet service provider 846ISR in-service register 847ISR interrupt service routine 848IST internal spanning tree 849IST interrupt stack table 850ISV independent software vendor 851IT information technology 852ITB Intel Turbo Boost 853ITIL information technology infrastructure library 854ITP in-target probe 855ITSM IT service management 856IV initialization vector 857IVT interrupt vector table 858JBOD just a bunch of disks 859JCL Job Control Language 860JFET junction [gate] field-effect transistor 861JIT just in time 862JPEG Joint Photographic Experts Group 863JRE Java Runtime Environment 864JSON JavaScript Object Notation 865JTAG joint test action group 866KASAN Kernel Address Sanitizer 867KASLR kernel address space layout randomization 868KB keyboard 869KB kilobyte 870KBD keyboard 871KBD kilobaud 872KCS keyboard controller style 873KEK key encryption key 874KEM key encapsulation mechanism 875KLOC thousand lines of code 876KMS kernel-mode setting 877KPI kernel programming interface 878KVA kernel virtual address 879KVM kernel virtual machine 880KVM kernel virtual memory 881KVM keyboard, video, [and] mouse 882L2CAP link layer control and adaptation protocol 883LAG link aggregation group 884LAMP Linux Apache MySQL {Perl,PHP,Python} 885LAN local area network 886LAPIC local advanced programmable interrupt controller 887LAR load access rights 888LBA logical block addressing 889LBNF labeled backus-naur form 890LBS location-based service 891LCD liquid crystal display 892LCP link control protocol 893LDA local delivery agent 894LDAP Lightweight Directory Access Protocol 895LDR light-dependent resistor 896LDT local descriptor table 897LE logical extent 898LED light emitting diode 899LELL low energy link layer 900LER label edge router 901LF line feed 902LF low frequency 903LFM lowest frequency mode 904LFN long file names 905LFO low-frequency oscillation 906LFS log-structured file system 907LFU least frequently used 908LHP loop heat pipe 909LIF logical interchange format 910LIFO last in, first out 911LILO LInux LOader 912LILO last in, last out 913LINT local interrupt 914LIR local Internet registry 915LISP LISt Processor 916LISP Locator/ID Separation Protocol 917LKM {Linux,loadable} kernel module 918LKML Linux kernel mailing list 919LL load linked 920LL/SC load linked/store conditional 921LLC logical link control 922LLD low-level design 923LLDD low-level design document 924LLDP link layer discovery protocol 925LLF low level format 926LLMNR link-local multicast name resolution 927LLVM Low Level Virtual Machine 928LM long mode 929LMCE local machine check exception 930LMI local management interface 931LMM link management mode 932LMP link management protocol 933LNO loop nest optimization 934LOC lines of code 935LOM lights-out management 936LPC low pin count 937LPE Linux performance events 938LPS local positioning system 939LRC longitudinal redundancy check 940LRM left-to-right mark 941LRO Large Receive Offload 942LRO left-to-right override 943LRU least recently used 944LS link state 945LSAN Leak Sanitizer 946LSB Linux standards base 947LSB least significant {bit,byte} 948LSI large scale integration 949LSL load segment limit 950LSM log structured merge 951LSN Large Scale NAT 952LSN log sequence number 953LSO large send offload 954LSR label switch router 955LTCC low temperature co-fired ceramic 956LTO linear tape-open 957LTO link time optimization 958LTR left to right 959LTR letter(-sized paper) 960LTR load task register 961LTS long term support 962LUA Lua Uppercase Accident 963LUN logical unit number 964LV logical volume 965LVDS Low-Voltage Differential Signaling 966LVM logical volume management 967LVT local vector table 968LWP light-weight process 969LZSS Lempel Ziv Storer Szymanski 970LZW Lempel Ziv Welch 971MAB MAC authentication bypass 972MAC mandatory access control 973MAC message authentication {check,code} 974MAC {media,medium} access control 975MADT multiple APIC descriptor table 976MAMR microwave-assisted magnetic recording 977MB megabyte 978MBA multi-boot agent 979MBR master boot record 980MBS megabits per second 981MC memory controller 982MCA MicroChannel architecture 983MCA machine check architecture 984MCC multiversion concurrency control 985MCE machine check exception 986MCGA Multi-Color Graphics Array 987MCH memory controller hub 988MCLAG multi-chassis link aggregation group 989MCM multi-chip module 990MCQ memory controlled queue 991MD MiniDisc 992MD machine-dependent 993MD-SAL model-driven service abstraction layer 994MDA Monochrome Display Adapter 995MDA mail delivery agent 996MDC Management Data Clock 997MDI Medium Dependent Interface 998MDI-X Medium Dependent Interface Crossover 999MDIO Management Data Input/Output 1000MDMX MIPS Digital Media eXtension 1001MDRAM multibank dynamic random access memory 1002MDS microarchitectural data sampling 1003MESI modified, exclusive, shared, invalid 1004MFC Microsoft Foundation Classes 1005MFC merge from current 1006MFM modified frequency modulation 1007MFU most frequently used 1008MGCP media gateway control protocol 1009MHU message handling unit 1010MI machine interface 1011MI machine-independent 1012MIB management information base 1013MIC message integrity {check,code} 1014MID mobile Internet device 1015MIDI musical instrument digital interface 1016MIF management information format 1017MII media independent interface 1018MIM man in the middle 1019MIMD multiple instruction, multiple data 1020MIME Multipurpose Internet Mail Extensions 1021MIMO multiple input multiple output 1022MIPS Microprocessor without Interlocked Pipeline Stages 1023MIPS million instructions per second 1024MISD multiple instruction, single data 1025MIT Massachusetts Institute of Technology 1026MITM man in the middle 1027ML machine language 1028ML machine learning 1029ML mailing list 1030ML markup language 1031ML maximum likelihood 1032ML-KEM module-lattice based key-encapsulation mechanism 1033MLAG multi-chassis link aggregation group 1034MLC multi-level cell 1035MLD multicast listener discovery 1036MLHP micro loop heat pipe 1037MLIR multi-level intermediate representation 1038MLO MMC loader 1039MMC multi-media card 1040MMF multi-mode fiber 1041MMIC monolithic microwave integrated circuit 1042MMIO memory mapped input/output 1043MMORPG massive multiplayer online role playing game 1044MMRP multiple MAC registration protocol 1045MMU memory management unit 1046MMX matrix math extension 1047MMX multimedia extension 1048MMX multiple math extension 1049MO magneto-optical 1050MOESI modified, owned, exclusive, shared, invalid 1051MOF maximum operating frequency 1052MOSFET metal-oxide-semiconductor field-effect transistor 1053MOSI modified, owned, shared, invalid 1054MP multi-platform 1055MP multiplayer 1056MP {multiprocessing,multiprocessor} 1057MPEG moving picture experts group 1058MPI message passing interface 1059MPLS Multiprotocol Label Switching 1060MPP massively parallel processor 1061MPS memory pool system 1062MPS multiprocessor specification 1063MQTT Message Queuing Telemetry Transport 1064MR modem ready 1065MRO method resolution order 1066MRP multiple registration protocol 1067MRU most recently used 1068MS Microsoft 1069MSAN Memory Sanitizer 1070MSB most significant {bit,byte} 1071MSC message sequence chart 1072MSE mean square error 1073MSF minutes seconds frames 1074MSI message signaled interrupt 1075MSI modified, shared, invalid 1076MSR {machine state,model-specific} register 1077MSS maximum segment size 1078MSTP Multiple Spanning Tree Protocol 1079MT machine translation 1080MTA mail transfer agent 1081MTBF mean time between failures 1082MTP media transfer protocol 1083MTRR memory type range register 1084MTTF mean time to failure 1085MTU maximum transmission unit 1086MUA mail user agent 1087MUD multi-user domain 1088MVCC multiversion concurrency control 1089MVR multicast VLAN registration 1090MVRP multiple VLAN registration protocol 1091MWE module width encoding 1092MX mail exchange 1093NACK negative acknowledgement 1094NAK negative acknowledgement 1095NAN neighbor awareness networking 1096NAN not a number 1097NAPT Network Address Port Translation 1098NAS network attached storage 1099NAT network address translation 1100NAV network allocation vector 1101NC numerical control 1102NC-SI network controller sideband interface 1103NCO numerically-controlled oscillator 1104NCP Network Control Protocol 1105NCQ native command queuing 1106NCSI network connectivity status indicator 1107ND neighbor discovery 1108NDFA nondeterministic finite automaton 1109NDIS network driver interface specification 1110NE numeric error 1111NEWS Network extensible Window System 1112NFA nondeterministic finite automaton 1113NFC near-field communication 1114NFCI no functional change intended 1115NFS network file system 1116NFV network function virtualization 1117NHACP NABU HCCA Application Communication Protocol 1118NIA next instruction address 1119NIC network information center 1120NIC network interface card 1121NIDS network intrusion detection system 1122NIP network interface protocol 1123NIPS network intrusion prevention system 1124NIS network information service 1125NIST National Institute of Standards and Technology 1126NLS native language support 1127NMI non-maskable interrupt 1128NMR nonce-misuse resistance 1129NNTP Network News Transfer Protocol 1130NOC network operations center 1131NOP no operation 1132NOS network operating system 1133NP nondeterministic polynomial time 1134NRND not recommended for new designs 1135NRZ non-return to zero 1136NSA National Security Agency 1137NSA nation-state adversary 1138NSA no such agency 1139NTA negative trust anchor 1140NTM non-deterministic Turing machine 1141NTP Network Time Protocol 1142NUMA non-uniform memory access 1143NURBS non-uniform rational basis spline 1144NVD National Vulnerability Database 1145NVMM NetBSD Virtual Machine Monitor 1146NVMM non-volatile main memory 1147NVRAM non-volatile random access memory 1148NW not write-through 1149NX no execute 1150OAEP optimal asymmetric encryption padding 1151OAM operations, administration, and {management,maintenance} 1152OBO off by one 1153OBOE off by one error 1154OCL object constraint language 1155OCR optical character recognition 1156ODBC Open Database Connectivity 1157ODCM on-demand clock modulation 1158ODE offline device environment 1159ODI open data-link interface 1160ODM object data manager 1161ODMR on-demand mail relay 1162ODT on-die termination 1163OEM original equipment manufacturer 1164OFB output feedback 1165OFDM orthogonal frequency division multiplexing 1166OFET organic field-effect transistor 1167OLAP online analytical processing 1168OLE object linking and embedding 1169OLTP online transaction processing 1170ONCE on-{chip,circuit} emulation 1171ONFI open nand flash interface 1172OO OpenOffice 1173OO object oriented 1174OOB out of band 1175OOE out of order execution 1176OOM out of memory 1177OOO OpenOffice.org 1178OOP object oriented programming 1179OOPS object oriented programming systems 1180OOSE object oriented software engineering 1181OPM operations per minute 1182OPS operations per second 1183OQL Object Query Language 1184ORB object request broker 1185ORM object-relational mapping 1186OS operating system 1187OSD object-based storage device 1188OSD open source definition 1189OSF open software foundation 1190OSI Open Source Initiative 1191OSI open systems interconnection 1192OSPF open shortest path first 1193OSPM OS power management 1194OSS open sound system 1195OSS open source software 1196OSVW operating system visible workarounds 1197OTP one time password 1198OTP open telecom platform 1199OU organizational unit 1200OUI organizationally unique identifier 1201OWASP Open Web Application Security Project 1202OWL Web Ontology Language 1203P2P PCI to PCI 1204P2P peer to peer 1205PA phase accumulator 1206PA physical address 1207PAAS platform as a service 1208PAC phase-amplitude converter 1209PAE physical address extension 1210PAGP port aggregation protocol 1211PAL phase alternating line 1212PAL programmable array logic 1213PAM pluggable authentication modules 1214PAM pulse amplitude modulation 1215PAP password authentication protocol 1216PAT page attribute table 1217PAT port address translation 1218PATA parallel ATA 1219PAX portable archive exchange 1220PBE pending break encoding 1221PBE programming by example 1222PBR partition boot record 1223PBX private branch exchange 1224PC personal computer 1225PC program counter 1226PCB Protocol Control Block 1227PCB printed circuit board 1228PCB process control block 1229PCBC propagating cipher block chaining 1230PCC Portable C Compiler 1231PCD page-level cache disable 1232PCE path computation element 1233PCE performance-monitor counter enable 1234PCEP Path Computation Element Protocol 1235PCH platform controller hub 1236PCI peripheral component interconnect 1237PCM phase change memory 1238PCM pulse code modulation 1239PCMCIA Personal Computer Memory Card International Association 1240PCP Port Control Protocol 1241PD public domain 1242PDA personal digital assistant 1243PDA pushdown automaton 1244PDAG propositional directed acyclic graph 1245PDB power distribution board 1246PDF portable document format 1247PDM pulse-duration modulation 1248PDN pull-down network 1249PDP page {descriptor,directory} page 1250PDS product data sheet 1251PDU protocol data unit 1252PE portable executable 1253PE protection enable 1254PE provider edge 1255PEAP Protected EAP 1256PECI platform environment control interface 1257PEP protocol extension protocol 1258PER packed encoding rules 1259PFS perfect forward secrecy 1260PGAS partitioned global address space 1261PGE page global enable 1262PGO profile guided optimization 1263PGP Pretty Good Privacy 1264PHB PCI host bridge 1265PHP PHP: Hypertext Preprocessor 1266PIC performance instrumentation counters 1267PIC position independent code 1268PIC programmable interrupt controller 1269PICNIC problem in chair, not in computer 1270PID process id 1271PIE position independent executable 1272PIL Priority Interrupt Level 1273PIM personal information manager 1274PIM platform-independent model 1275PIO programmed input/output 1276PIPT physically indexed, physically tagged 1277PIQ prefetch input queue 1278PIR private information retrieval 1279PIT programmable interrupt timer 1280PIV personal identity verification 1281PIX Private Internet eXchange 1282PKCS public-key cryptography standards 1283PKI public key infrastructure 1284PLC programmable logic controller 1285PLD programmable logic device 1286PLL phase locked loop 1287PLRU pseudo LRU 1288PLT procedure linkage table 1289PLTM package level thermal management 1290PM power management 1291PM {phase,pulse} modulation 1292PMC performance monitoring counters 1293PME power management event 1294PMEG page map entry group 1295PMI performance monitoring infrastructure 1296PMI platform management interrupt 1297PMIC power management integrated circuit 1298PMIO port-mapped input/output 1299PMT photo-multiplier tube 1300PMU performance monitoring units 1301PMU power management unit 1302PNG portable network graphics 1303PNP plug and play 1304POE power over ethernet 1305POF probability of failure 1306POP Post Office Protocol 1307POP power on password 1308POR plan of record 1309POSIX Portable Operating System Interface [for Unix] 1310POST power on self test 1311POTS plain old telephone system 1312POWER Performance Optimization With Enhanced RISC 1313POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1314PP pair programming 1315PPB PCI [to] PCI bridge 1316PPC Power Performance Computing 1317PPC PowerPC 1318PPI pixels per inch 1319PPM pages per minute 1320PPP Point-to-Point Protocol 1321PPPOA Point-to-Point Protocol over ATM 1322PPPOE Point-to-Point Protocol over Ethernet 1323PPR processor programming reference 1324PPT powerpoint 1325PPT punched paper tape 1326PPU physics processing unit 1327PQC post-quantum cryptography 1328PRAM Parameter RAM 1329PRBS pseudorandom bit sequence 1330PRF pseudorandom function [family] 1331PRG pseudorandom generator 1332PRML partial response, maximum likelihood 1333PRN pseudorandom {noise,number} 1334PRNG pseudorandom number generator 1335PROM programmable read only memory 1336PRP pseudorandom permutation 1337PRU Programmable Realtime Unit 1338PS PostScript 1339PSD power spectral density 1340PSE page size extensions 1341PSK phase shift keying 1342PSK pre-shared key 1343PSTN public switched telephone network 1344PSW program status word 1345PTE page table entry 1346PTLA pseudo top level aggregator 1347PTP page table page 1348PTV perceived target value 1349PU processing unit 1350PUC personal unblocking code 1351PUN physical unit number 1352PV physical volume 1353PVC permanent virtual circuit 1354PVG physical volume group 1355PVI protected-mode virtual interrupt 1356PVRST Per-VLAN rapid spanning tree 1357PVST Per-VLAN Spanning Tree 1358PWM pulse width modulation 1359PXE preboot execution environment 1360QA quality assurance 1361QAM quadrature amplitude modulation 1362QAM quality assurance management 1363QBE query by example 1364QC quality control 1365QCIF quarter common intermediate format 1366QDI quasi delay insensitive 1367QOI quality of implementation 1368QOI quick order interface 1369QOS quality of service 1370QUIC Quick UDP Internet Connections 1371QVL qualified vendor list 1372R/O read only 1373R/W read/write 1374RA receiver address 1375RA remote assistance 1376RA resource affinity 1377RA router advertisement 1378RAD rapid application development 1379RADIUS remote authentication dial-in user service 1380RAID redundant array of {independent,inexpensive} disks 1381RAII resource acquisition is initialization 1382RAM random access memory 1383RAS reliability, availability and serviceability 1384RAS remote access service 1385RAS restartable atomic sequence 1386RAS row address strobe 1387RAT register allocation table 1388RAT remote access trojan 1389RBF radial basis function 1390RBL real-time blackhole list 1391RBL reputation block list 1392RBNF routing backus-naur form 1393RBT red-black tree 1394RC release candidate 1395RC remote control 1396RC run commands 1397RCS Revision Control System 1398RCU read, copy, update 1399RDB Rigid Disk Block 1400RDBMS relational database management system 1401RDF Resource Description Framework 1402RDM relational data model 1403RDMA remote direct memory access 1404RDP remote desktop protocol 1405RDRAM Rambus DRAM 1406RE regular expression 1407REPL read, evaluate, print, loop 1408REST representational state transfer 1409RF radio frequency 1410RFB remote frame buffer 1411RFI radio frequency interference 1412RFO request for ownership 1413RFU reserved for future use 1414RGB red green blue 1415RGBA red green blue alpha 1416RGMII reduced gigabit media independent interface 1417RH read hit 1418RHEL Red Hat Enterprise Linux 1419RHL Red Hat Linux 1420RIB routing information base 1421RIFF Resource Interchange File Format 1422RIP Raster Image Processor 1423RIP Routing Information Protocol 1424RIR regional Internet registry 1425RISC reduced instruction set {computer,computing} 1426RKM ROM Kernel Manual 1427RLE run length encoding 1428RLL run length limited 1429RLO right-to-left override 1430RM read miss 1431RMCP Remote Management Control Protocol 1432RMI remote method invocation 1433RMO Relaxed Memory Ordering 1434RMPM rapid memory power management 1435RMS root mean square 1436RMW read, modify, write 1437RNG random number generator 1438ROA route origin authorization 1439ROM read only memory 1440ROP return-oriented programming 1441RPC remote procedure call 1442RPG Report Program Generator 1443RPKI resource PKI 1444RPL requested privilege level 1445RPM revolutions per minute 1446RPN reverse Polish notation 1447RPVST Rapid Per-VLAN Spanning Tree 1448RR random replacement 1449RR round robin 1450RS relay station 1451RSA Rivest, Shamir, [and] Adleman 1452RSC Receive Segment Coalescing 1453RSIP Realm Specific IP 1454RSN Robust Secure Network 1455RSS Receive Side Scaling 1456RSS really simple syndication 1457RSS residual sum of squares 1458RSTP Rapid Spanning Tree Protocol 1459RT real time 1460RTC real time clock 1461RTC real time computing 1462RTF rich text format 1463RTL register transfer language 1464RTL resistor-transistor logic 1465RTL right to left 1466RTM restricted transactional memory (Intel) 1467RTOS real time operating system 1468RTP Real-time Transport Protocol 1469RTS request to send 1470RTT round trip time 1471RTTI run-time type information 1472RUP rational unified process 1473RW Rabin-Williams 1474RWM read-write memory 1475RX {receive,receiver} 1476S/PDIF Sony/Philips Digital Interface Format 1477SA security advisory 1478SA security association 1479SA source address 1480SA structured analysis 1481SAAS software as a service 1482SABRE Semi-automated business research environment 1483SACD super audio compact disc 1484SAD security association database 1485SAF-TE SCSI accessed fault-tolerant enclosure 1486SAGE Semi-automated ground environment 1487SAL {service,system} abstraction layer 1488SAM serial access memory 1489SAM sum addressed memory 1490SAML security assertion markup language 1491SAN storage area network 1492SAP service access point 1493SAPIC streamlined advanced programmable interrupt controller 1494SASD structured analysis, structured design 1495SASI Shugart Associates System Interface 1496SASL simple authentication [and] security layer 1497SATA serial advanced technology attachment 1498SAX simple API for XML 1499SB sound blaster 1500SBSA server base system architecture 1501SBU standard build unit 1502SC store conditional 1503SCA source code analyzer 1504SCADA supervisory control and data acquisition 1505SCC single chip cloud 1506SCC source code control 1507SCCP skinny call control protocol 1508SCCS Source Code Control System 1509SCI scalable coherent interface 1510SCI system control interrupt 1511SCIM smart common input method 1512SCM software configuration management 1513SCM source code management 1514SCM storage-class memory 1515SCO synchronous connection orientated 1516SCP secure copy 1517SCP system control processor 1518SCPI system control and power interface 1519SCSI Small Computer System Interface 1520SCTP Stream Control Transmission Protocol 1521SDDC software defined data center 1522SDEI software delegated exception interface 1523SDI symbol deinterleave 1524SDK software development kit 1525SDL Simple Declarative Language 1526SDL Simple Direct-media Layer 1527SDLC {software,system,systems} development life cycle 1528SDN software defined networking 1529SDP Session Description Protocol 1530SDR software defined radio 1531SDRAM synchronous dynamic random access memory 1532SDS software defined storage 1533SDT syntax-directed translation 1534SEA synchronous external abort 1535SED self-encrypting drive 1536SED stream editor 1537SEGV segmentation violation 1538SEMB serial ATA enclosure management bridge 1539SEO search engine optimization 1540SES SCSI enclosure services 1541SFC sequential function chart 1542SFI simple firmware interface 1543SFI software fault isolation 1544SFP small form-factor pluggable 1545SFTP SSH File Transfer Protocol 1546SFTP Serial File Transfer Protocol 1547SFTP Simple File Transfer Protocol 1548SGI Silicon Graphics, Inc 1549SGI software generated interrupt 1550SGMII serial gigabit media independent interface 1551SGPIO serial general purpose input/output 1552SGRAM synchronous graphics random access memory 1553SHA secure hash algorithm 1554SICP structure and interpretation of computer programs 1555SIDH supersingular isogeny Diffie-Hellman 1556SIEM security information and event management 1557SIF source input format 1558SIFS short inter-frame space 1559SIM subscriber identity module 1560SIMD single instruction, multiple data 1561SIMM single inline memory module 1562SIP Session Initiation Protocol 1563SIR signal-to-interference ratio 1564SIR slow infrared 1565SIRT security incident response team 1566SISD single instruction, single data 1567SIV synthetic intialization vector 1568SLAAC stateless address auto-configuration 1569SLC single-level cell 1570SLDRAM synchronous-link dynamic random access memory 1571SLED single large expensive disk 1572SLI scalable link interface 1573SLI scan-line interleave 1574SLIC system license internal code 1575SLOC source lines of code 1576SLRU segmented LRU 1577SMA smart memory access 1578SMAF system management action field 1579SMAP Simple Mail Access Protocol 1580SMAP supervisor mode access prevention 1581SMART self-monitoring analysis and reporting technology 1582SMB Server Message Block 1583SMB system management bus 1584SMBIOS System Management BIOS 1585SMC system management controller 1586SMD storage module device 1587SMEP supervisor mode execution protection 1588SMF single mode fiber 1589SMI structure of management information 1590SMI system management interrupt 1591SMM system management mode 1592SMP serial management protocol 1593SMP symmetric multiprocessing 1594SMR shingled magnetic recording 1595SMR state machine replication 1596SMT simultaneous multithreading 1597SMTP Simple Mail Transfer Protocol 1598SMU system management unit 1599SNA systems network architecture 1600SNAP Sub-Network Access Protocol 1601SNIA Storage Networking Industry Association 1602SNMP Simple Network Management Protocol 1603SNR signal-to-noise ratio 1604SOA service oriented architecture 1605SOAP Simple Object Access Protocol 1606SOC security operations center 1607SOC system on chip 1608SOF start of frame 1609SOH start of header 1610SOHO small office/home office 1611SOL serial over LAN 1612SOM system on module 1613SP service pack 1614SP stack pointer 1615SPA storage pool allocator 1616SPAN switched port analyzer 1617SPARC scalable processor architecture 1618SPARQL SPARQL Protocol and RDF Query Language 1619SPD security policy database 1620SPD serial presence detect 1621SPDIF Sony/Philips digital interface format 1622SPI serial peripheral interface 1623SPI stateful packet inspection 1624SPIR standard portable intermediate representation 1625SPL secondary program loader 1626SPL spinlock 1627SPL system interrupt priority level 1628SPMD single process, multiple data 1629SPR special purpose register 1630SPT sectors per track 1631SQA software quality assurance 1632SQCIF sub quarter common intermediate format 1633SQL Structured Query Language 1634SRAM static random access memory 1635SRC sample rate conversion 1636SRP SCSI RDMA protocol 1637SRR shaped round robin 1638SRTP Secure Real-time Transport Protocol 1639SS self-snoop 1640SS stack segment 1641SSA static single assignment 1642SSAP source service access point 1643SSB single-sideband modulation 1644SSB speculative store bypass 1645SSBB speculative store bypass barrier (Arm) 1646SSBD speculative store bypass disable (Intel) 1647SSC spread spectrum clock 1648SSD solid state drive 1649SSE streaming SIMD extensions 1650SSFDC solid state floppy disc card 1651SSH secure shell 1652SSI server side includes 1653SSID service set identifier 1654SSL secure sockets layer 1655SSP stack smashing protection 1656SSRF server-side request forgery 1657SSTP secure socket tunneling protocol 1658STC software thermal control 1659STD state transition diagram 1660STEK session ticket encryption key 1661STM software transactional memory 1662STOMP Streaming Text Oriented Messaging Protocol 1663STP Spanning Tree Protocol 1664STP shielded twisted pair 1665STRG spanning tree root guard 1666SUN Stanford University Network 1667SUS Single Unix Specification 1668SUT system under test 1669SVC switched virtual circuit 1670SVG scalable vector graphics 1671SVGA Super Video Graphics Array 1672SVI {switch,switched} virtual interface 1673SVM secure virtual machine 1674SVM support vector machine 1675SVR System V Release 1676SVS Separate Virtual Space 1677SWF Shockwave Flash 1678SWIG simplified wrapper [and] interface generator 1679SYR symbol timing recovery 1680TA test assertion 1681TA transmitter address 1682TAA transactional asynchronous abort (Intel) 1683TACACS terminal access controller access-control system 1684TAI international atomic time 1685TAO track at once 1686TAOCP The Art of Computer Programming 1687TAP Test Anything Protocol 1688TAS test and set 1689TB terabyte 1690TBNF transitional backus-naur form 1691TCB trace capture buffer 1692TCB trusted computing base 1693TCC thermal control circuit 1694TCL tool command language 1695TCP Transmission Control Protocol 1696TCQ tagged command queueing 1697TDC time [to] digital converter 1698TDD test-driven development 1699TDD time division duplex 1700TDM time division multiplexing 1701TDMA time division multiple access 1702TDOA time difference of arrival 1703TDP thermal design {point,power} 1704TDR time-domain reflectometry 1705TECO Text Editor and Corrector 1706TEE Trusted Execution Environment 1707TFT thin film transistor 1708TFTP Trivial File Transfer Protocol 1709TIAS try it and see 1710TIFF tagged image file format 1711TITS try it to see 1712TK temporal key 1713TKIP Temporal Key Integrity Protocol 1714TLA top level aggregator 1715TLB translation lookaside buffer 1716TLD top level domain 1717TLER time-limited error recovery 1718TLI transport layer interface 1719TLS thread local storage 1720TLS transport layer security 1721TM Turing machine 1722TM thermal monitor 1723TMDS transition minimized differential signaling 1724TMG transmogrifier 1725TMO timeout 1726TOD time of day 1727TOE TCP offload engine 1728TOFU trust on first use 1729TOS terms of service 1730TOS trusted operating system 1731TOS type of service 1732TOTP time-based one time password 1733TP transaction processing 1734TPI tracks per inch 1735TPM transactions per minute 1736TPM trusted platform module 1737TPR task priority register 1738TPS transactions per second 1739TPS transmission parameters signaling 1740TR task register 1741TR token ring 1742TRL timing recovery loop 1743TRNG true random number generator 1744TS terminal services 1745TS time series 1746TS time stamp 1747TS transport stream 1748TSAN Thread Sanitizer 1749TSC time stamp counter 1750TSD time stamp disable 1751TSDB time series database 1752TSL test, set, lock 1753TSO TCP segmentation offload 1754TSO Total Store Ordering 1755TSO time sharing option 1756TSP Time-Stamp Protocol 1757TSP Tunnel Setup Protocol 1758TSP time synchronization protocol 1759TSP traveling salesman problem 1760TSS task state segment 1761TSV tab-separated values 1762TSX transaction synchronization extensions (Intel) 1763TTL time to live 1764TTL transistor-transistor logic 1765TTM translation table maps 1766TTY teletype 1767TU translation unit 1768TUI {terminal,text-based,textual} user interface 1769TX {transmit out,transmitter} 1770TXG transaction group 1771TZ time zone 1772UAC user {access,account} control 1773UAF use-after-free 1774UART universal asynchronous receiver/transmitter 1775UAT user acceptance testing 1776UB undefined behavior 1777UBSAN Undefined Behavior Sanitizer 1778UC uncacheable 1779UCS unified computing system 1780UCS uniform-cost search 1781UCS universal coded character set 1782UDI uniform driver interface 1783UDMA ultra DMA 1784UDO ultra density optical 1785UDP User Datagram Protocol 1786UDS Unix Domain Socket 1787UEFI unified extensible firmware interface 1788UFO UDP fragmentation offload 1789UFS Unix File System 1790UGA universal graphics adapter 1791UI unit interval 1792UI user interface 1793UICC universal integrated circuit card 1794UID unique identifier 1795UID user identifier 1796UL upload 1797UMA uniform memory access 1798UMA upper memory area 1799UMB upper memory block 1800UML unified modeling language 1801UMPC ultra-mobile PC 1802UPNP universal plug and play 1803UPS uninterruptible power supply 1804URI uniform resource identifier 1805URL uniform resource locator 1806URN uniform resource name 1807USART universal synchronous/asynchronous receiver/transmitter 1808USB universal serial bus 1809USWC uncacheable speculative write combining 1810UT unit test 1811UTC coordinated universal time 1812UTF unicode transformation formats 1813UTP unshielded twisted pair 1814UTS UNIX time-sharing 1815UUCP Unix-to-Unix Copy Protocol 1816UUID universally unique identifier 1817UUOC useless use of cat 1818UUT unit under test 1819UX user experience 1820VA vertical alignment 1821VA virtual address 1822VA volt-ampere 1823VAX virtual address extension 1824VB Visual Basic 1825VBR volume boot record 1826VCA variable-gain amplifier 1827VCC common collector voltage 1828VCCP virtual chassis control protocol 1829VCF voltage-controlled filter 1830VCM virtual channel memory 1831VCO voltage-controlled oscillator 1832VCP virtual chassis port 1833VCS version control system 1834VDP vulnerability disclosure policy 1835VDPAU Video Decode and Presentation API for Unix 1836VES virtual execution system 1837VESA Video Electronics Standards Association 1838VFO variable-frequency oscillator 1839VFS virtual file system 1840VG volume group 1841VGA Video Graphics Array 1842VHDCI very high density cable interconnect 1843VID {VLAN,voltage level} identifier 1844VIM Vi IMproved 1845VIPT virtually indexed, physically tagged 1846VIVT virtually indexed, virtually tagged 1847VLAN virtual local area network 1848VLD variable-length decoding 1849VLIW very long instruction word 1850VLSI very large scale integration 1851VLSM variable length subnet mask 1852VM virtual {machine,memory} 1853VME virtual mode extension 1854VMX vector multimedia extensions 1855VMX virtual machine extensions 1856VNC virtual network computing 1857VNI virtual network identifier 1858VOD video on demand 1859VPD vital product data 1860VPN virtual private network 1861VPWS virtual private wire service 1862VR virtual reality 1863VRAM video random access memory 1864VRF virtual routing and forwarding 1865VRM voltage regulator module 1866VROC Virtual RAID On CPU 1867VRRP Virtual Router Redundancy Protocol 1868VSTP VLAN Spanning Tree Protocol 1869VTEP VXLAN tunnel endpoint 1870VTP VLAN Trunking Protocol 1871VXFS Veritas file system 1872VXLAN virtual extensible LAN 1873VXVM Veritas volume manager 1874W watt 1875W3C World Wide Web Consortium 1876WAFL write anywhere file layout 1877WAMP Web Application Messaging Protocol 1878WAN wide area network 1879WAP Wireless Application Protocol 1880WAP wireless access point 1881WDDM Windows Display Driver Model 1882WDM Windows Driver Model 1883WDT watchdog timer 1884WEP Wired Equivalent Privacy 1885WFI wait for interrupt 1886WFQ weighted fair queuing 1887WH write hit 1888WHEA Windows hardware error architecture 1889WIFI wireless fidelity 1890WLAN wireless local area network 1891WM write miss 1892WMF Windows meta file 1893WMI Windows Management Instrumentation 1894WOL Wake-on-LAN 1895WOM Wake-on-Modem 1896WOR Wake-on-Ring 1897WORM write once read many 1898WP WordPerfect 1899WP word processor 1900WP write protect 1901WPA Wi-Fi Protected Access 1902WPA2 Wi-Fi Protected Access II 1903WPAD web proxy auto-discovery protocol 1904WPS Wi-Fi Protected Setup 1905WRAM window random access memory 1906WS web services 1907WTC write through caching 1908WTD weighted tail drop 1909WWAN wireless wide area network 1910WWW world wide web 1911WYSIAYG what you see is all you get 1912WYSIWYG what you see is what you get 1913XBAR crossbar 1914XDMCP X Display Manager control protocol 1915XER XML encoding rules 1916XGA Extended Graphics Array 1917XHR XMLHttpRequest 1918XIP execute in place 1919XML Extensible Markup Language 1920XNA XNA's not acronymed 1921XNS Xerox network systems 1922XOR exclusive or 1923XP extreme programming 1924XSI X/Open System Interface 1925XSL extensible stylesheet language 1926XSLT extensible stylesheet language transformations 1927XSS cross site scripting 1928XT extended technology 1929XTACACS extended terminal access controller access-control system 1930XTI X/Open transport interface 1931XUL XML user interface language 1932YACC yet another compiler compiler 1933YAML YAML ain't markup language 1934YANG yet another next generation 1935YAWPFAPR you are welcome; please file a problem report 1936YP Yellow Pages 1937YTD year to date 1938ZAP ZFS attribute processor 1939ZBR zone bit recording 1940ZFOD zero-filled on demand 1941ZFS zettabyte file system 1942ZIF zero insertion force 1943ZIFS zero insertion force socket 1944ZIL ZFS intent log 1945ZMA zone multicast address 1946ZOI zero one infinity 1947ZOI zone of influence 1948ZPL ZFS Posix layer 1949ZVOL ZFS Volume 1950