acronyms.comp revision 1.414
1$NetBSD: acronyms.comp,v 1.414 2025/10/14 14:48:28 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 250CFRG Crypto Forum Research Group (IRTF) 251CG control gate 252CGA Color Graphics Adapter 253CGI common gateway interface 254CGN Carrier-Grade NAT 255CHAP Challenge-Handshake Authentication Protocol 256CHFS chip file system 257CHS cylinder/head/sector 258CI continuous integration 259CI {common,component} interface 260CIA confidentiality, integrity, availability 261CIDR Classless Inter-Domain Routing 262CIF common intermediate format 263CIFS Common Internet File System 264CIL common intermediate language 265CIR carrier-to-interference ratio 266CIS contact image sensor 267CISC complex instruction set {computer,computing} 268CJK Chinese, Japanese, [and] Korean 269CLF common log format 270CLI command line interface 271CLI common language infrastructure 272CLR common language runtime 273CLS common language specification 274CLTT closed loop thermal throttling 275CLUT color look-up table 276CLV constant linear velocity 277CM configuration management 278CMA concert multithread architecture 279CMC certificate management over CMS 280CMC chassis management controller 281CMC corrected machine check 282CMI control {management,method} interface 283CMOS complementary metal-oxide-semiconductor 284CMP chip multi-processing 285CMS content management system 286CMS cryptographic message syntax 287CMS {configuration,content,course} management system 288CMYK cyan magenta yellow black 289CN {common,canonical} name 290CNA CVE Numbering Authority 291CNC computer numerical control 292CNR carrier-to-noise ratio 293COA change of authority 294COF current operating frequency 295COFDM coded orthogonal frequency division multiplexing 296COFF common object file format 297COM component object model 298COM computer on module 299COMA cache-only memory architecture 300CORBA common object request broker architecture 301COS class of service 302COW copy-on-write 303CP continuous pilot 304CPA chosen-plaintext attack 305CPB core performance boost 306CPC central processor complex 307CPC cpu performance counters 308CPE common phase error 309CPE common platform enumeration 310CPER common platform error record 311CPG clock pulse generator 312CPI cycles per instruction 313CPL current privilege level 314CPLD complex programmable logic device 315CPP C preprocessor 316CPS characters per second 317CPS continuation-passing style 318CPT command pass through 319CPU central processing unit 320CR carriage return 321CRC cyclic redundancy check 322CRDT conflict-free replicated data type 323CRL carrier recovery loop 324CRLF carriage return line feed 325CRQC cryptanalytically relevant quantum computer 326CRT cathode ray tube 327CRTP curiously recurring template pattern 328CRUD create, read, update, and delete 329CS cable select 330CS chip select 331CS code segment 332CS computer science 333CSDL {common,conceptual} schema definition language 334CSI channel state information 335CSI common system interface 336CSIRT computer security incident response team 337CSMA carrier sense multiple access 338CSMA/CA carrier sense multiple access with collision avoidance 339CSMA/CD carrier sense multiple access with collision detection 340CSP communicating sequential processes 341CSP constrain satisfaction problems 342CSP content security policy 343CSP cryptographic service provider 344CSPM cloud security posture management 345CSR control [and] status registers 346CSRF cross-site request forgery 347CSRG Computer Systems Research Group 348CSS cascading style sheets 349CST common spanning tree 350CSU C start up 351CSV comma-separated values 352CTF compact c type format 353CTM close to metal 354CTR counter [mode] 355CTS clear to send 356CTS common type system 357CUA common user access 358CUT coordinated universal time 359CV control voltage 360CVE common vulnerabilities and exposures 361CVS Concurrent Versions System 362CVSS Common Vulnerability Scoring System 363DA destination address 364DAA distributed application architecture 365DAAP digital audio access protocol 366DAB digital audio broadcasting 367DAC digital [to] analog converter 368DAC discretionary access control 369DAD duplicate address detection 370DAE deterministic authenticated encryption 371DANE DNS-based Authentication of Named Entities 372DAO disk at once 373DAP Directory Access Protocol 374DAT digital audio tape 375DAT dynamic acceleration technology 376DAU DNSSEC Algorithm Understood (RFC6975) 377DB database 378DBA database administrator 379DBA dynamic bandwidth allocation 380DBB data bus buffer 381DBC design by contract 382DBL dynamic buffer limiting 383DBMS database management system 384DBS database server 385DC data center 386DC direct current 387DCC Direct Client-to-Client 388DCC direct cable connect 389DCD data carrier detect 390DCE data control equipment 391DCE distributed computing environment 392DCIM data center infrastructure management 393DCIM digital camera images 394DCL Digital Command Language 395DCOM distributed component object model 396DCOP Desktop COmmunication Protocol 397DCS data collection systems 398DCT discrete cosine transform 399DCU data cache unit 400DDC display data channel 401DDE dynamic data exchange 402DDI device drivers interface 403DDK device driver kit 404DDL data description language 405DDR double data rate 406DDS direct digital sound 407DDWG Digital Display Working Group 408DE debugging extensions 409DE desktop environment 410DEA data encryption algorithm 411DEC Digital Equipment Corporation 412DEK data encryption key 413DEP data execution prevention 414DER distinguished encoding rules 415DES Data Encryption Standard 416DF don't fragment 417DFA deterministic finite automaton 418DFC data flow control 419DFS depth first search 420DFS distributed file system 421DFSAN Data Flow Sanitizer 422DFT diagnostic function test 423DFT discrete Fourier transform 424DFZ default-free zone 425DGEMM double precision general matrix multiply 426DGL data generation language 427DH Diffie-Hellman 428DHCP Dynamic Host Configuration Protocol 429DHU DS Hash Understood (RFC6975) 430DIA dedicated Internet access 431DIB device independent bitmap 432DIFS distributed inter-frame space 433DIMM dual inline memory module 434DIRT design in real time 435DKI driver/kernel interface 436DL diode logic 437DL discrete logarithm 438DL download 439DLCI data link connection identifier 440DLE data link escape 441DLL dynamic link library 442DLNA digital living network alliance 443DLP discrete logarithm problem 444DMA direct memory access 445DMB data memory barrier (Arm) 446DMI desktop management interface 447DMS document management system 448DMT discrete multitone modulation 449DMU data management layer 450DNARD Digital network appliance reference design 451DND drag and drop 452DNLC directory name lookup cache 453DNS Domain Name System 454DNSBL Domain Name System Block List 455DNSSEC DNS Security Extensions 456DOE distributed object environment 457DOF data over fibre 458DOH DNS over HTTPS 459DOM document object model 460DOQ DNS over QUIC 461DOS denial of service 462DOS disk operating system 463DOT DNS over TLS 464DP DisplayPort 465DPAA data path acceleration architecture 466DPC deferred procedure call 467DPCM differential pulse code modulation 468DPD dead peer detection 469DPDK data plane development kit 470DPI deep packet inspection 471DPI dots per inch 472DPL descriptor privilege level 473DPS Display PostScript 474DPST display power savings technology 475DRAAS disaster recovery as a service 476DRAM dynamic random access memory 477DRBG deterministic random bit generator 478DRI direct rendering infrastructure 479DRM digital rights management 480DRM direct rendering manager 481DRN Discovery of Network-designated Resolvers 482DRRS display refresh rate switching 483DS debug store 484DS differentiated services 485DS delegation signer 486DS9000 DeathStation 9000 487DS9K DeathStation 9000 488DSA digital signature algorithm 489DSAP destination service access point 490DSB data synchronization barrier (Arm) 491DSB double-sideband modulation 492DSCP differentiated services code point 493DSDT differentiated system descriptor table 494DSF device special file 495DSL dataset and snapshot layer 496DSL digital subscriber line 497DSL domain specific language 498DSLAM digital subscriber line access multiplexer 499DSN delivery status notification 500DSO dynamic shared object 501DSP digital signal processor 502DSSS direct sequence spread spectrum 503DTB device tree blob 504DTC device tree compiler 505DTD document type definition 506DTE data terminal equipment 507DTE dumb terminal emulator 508DTL diode-transistor logic 509DTLS datagram transport layer security 510DTS device tree source 511DTS digital thermal sensor 512DUT device under test 513DVB digital video broadcasting 514DVCS distributed version control system 515DVD digital versatile disc 516DVFS dynamic voltage and frequency scaling 517DVI Digital Visual Interface 518DVI device independent 519DVR digital video recorder 520DWARF Debugging With Attributed Record Formats 521E-XER extended XML encoding rules 522EABI embedded-application binary interface 523EAI Email Address Internationalization 524EAI Enterprise Application Integration 525EAP Extensible Authentication Protocol 526EAPOL EAP over Lan 527EAV entity-attribute-value model 528EAV ethernet audio/video bridging 529EBCDIC Extended Binary Coded Decimal Interchange Code 530EBDA Extended BIOS Data Area 531EBNF extended backus-naur form 532EBR extended boot record 533EC elliptic curve 534ECC elliptic curve cryptography 535ECC error correction code 536ECDH elliptic curve Diffie-Hellman 537ECDL elliptic curve discrete logarithm 538ECDLP elliptic curve discrete logarithm problem 539ECDSA elliptic curve digital signature algorithm 540EDDSA Edwards-curve digital signature algorithm 541ECL emitter-coupled logic 542ECN explicit congestion notification 543ECP enhanced capability port 544ECS enhanced chip set 545ECS extended configuration space 546EDAC error detection and correction 547EDAT enhanced dynamic acceleration technology 548EDGE explicit data graph execution 549EDID extended display identification data 550EDO extended data out 551EDS electronical data sheet 552EDSAC electronic delay storage automatic calculator 553EDVAC electronic discrete variable automatic computer 554EEE embrace, extend, extinguish 555EEE energy efficient ethernet 556EEPROM electrically erasable programmable read only memory 557EFI extensible firmware interface 558EFL emitter follower logic 559EFM eight to fourteen modulation 560EFS extent file system 561EGA Enhanced Graphics Adapter 562EGP exterior gateway protocol 563EH extension header 564EIDE enhanced IDE 565EINJ error injection table 566EISA extended industry standard architecture 567EKU extended key usage (x509) 568ELF executable and linking format 569ELS entry level system 570EMACS Editor MACroS 571EMI electro-magnetic interference 572EMP electro-magnetic pulse 573EMR electro-magnetic radiation 574EMS extended master secret (RFC7627) 575ENIAC electronic numerical integrator and computer 576EOF end of file 577EOI end of interrupt 578EOIS end of interactive support 579EOL end of life 580EOL end of line 581EOT end of transmission 582EPIC explicitly parallel instruction computing 583EPP enhanced parallel port 584EPP extensible provisioning protocol (RFC5730) 585EPRML extended partial response, maximum likelihood 586EPROM erasable programmable read only memory 587EPSS Exploit Prediction Scoring System 588EPT extended page tables 589ERC error recovery control 590ERD emergency recovery disk 591ERD entity relationship diagram 592ERE extended regular expression 593ERST error record serialization table 594ESAN Efficiency Sanitizer 595ESB enterprise service bus 596ESDI enhanced small disk interface 597ESDRAM enhanced synchronous dynamic random access memory 598ESI enclosure services interface 599ESS electronic switching system 600ESS extended service set 601ESSID extended service set identifier 602EST enhanced speedstep 603ETL extract, transform, load 604EU execution unit 605EULA end user license agreement 606EdDSA Edwards curve digital signature algorithm 607FAT file allocation table 608FBL feedback loop 609FBRAM frame buffer random access memory 610FCIF full common intermediate format 611FCL fiber channel loop 612FCS frame check sequence 613FDC floppy disk controller 614FDD floppy disk drive 615FDDI fiber distributed data interface 616FDE full disk encryption 617FDT flattened device tree 618FEA finite element analysis 619FEC forward error correction 620FET field-effect transistor 621FF finite field 622FF form feed 623FFDH finite-field Diffie-Hellman 624FFH functional fixed hardware 625FFI foreign function interface 626FFM focus follows mouse 627FFS Fast File System 628FFS find first set 629FFT fast Fourier transform 630FG floating gate 631FHE fully homomorphic encryption 632FHRP first hop redundancy protocol 633FHSS frequency hop spread spectrum 634FID frequency identifier 635FIFO first in, first out 636FILO first in, last out 637FIPS Federal Information Processing Standards 638FIR fast infrared 639FLOPS floating [point] operations per second 640FLOSS free/libre/open source software 641FM frequency modulation 642FMR false match rate 643FOSS free/open source software 644FPGA field programmable gate array 645FPM fast page mode 646FPR floating point register 647FPU floating point unit 648FQDN fully qualified domain name 649FRR false rejection rate 650FRR Free Range Routing 651FRU field replaceable unit 652FS file system 653FSB front side bus 654FSCK file system check 655FSF Free Software Foundation 656FSK frequency shift keying 657FSM finite-state machine 658FTA fault tree analysis 659FTL flash translation layer 660FTP File Transfer Protocol 661FTPS File Transfer Protocol Secure 662FTTH fiber to the home 663FUS fast user switching 664FWH firmware hub 665FWS folding white space 666GAL generic array logic 667GARP generic attribute registration protocol 668GAS generic address structure 669GC garbage collector 670GCC GNU Compiler Collection 671GCM Galois counter mode 672GCR group-coded recording 673GDI Graphics Device Interface 674GDT global descriptor table 675GDT (block) group descriptor table 676GECOS general comprehensive operating supervisor 677GEM graphics environment manager 678GEM graphics execution manager 679GEMM general matrix multiply 680GENA general event notification architecture 681GHC Glasgow Haskell compiler 682GHES generic hardware error source 683GIC generic interrupt controller 684GID group identifier 685GIF graphics interchange format 686GLBP gateway load balancing protocol 687GMCH graphics and memory controller hub 688GNU GNU's Not Unix 689GOP graphics output protocol 690GOT global offset table 691GPE general purpose event 692GPF general protection fault 693GPG GNU Privacy Guard 694GPL [GNU] General Public License 695GPR general purpose register 696GPS generalized processor sharing 697GPT GUID partition table 698GPU graphics processing unit 699GR golden ratio 700GRE generic routing encapsulation 701GRO generic receive offload 702GSI global system interrupt 703GSO generic send offload 704GUA global unicast address 705GUI graphical user interface 706GUID globally unique identifier 707GUS Gravis UltraSound 708GVFS git virtual file system 709HA high availability 710HAL hardware abstraction layer 711HAT hashed array tree 712HATEOAS hypermedia as the engine of application state 713HBA host bus adapter 714HBS hash-based signature 715HCC Home Cable Computer 716HCCA Home Cable Computer Adaptor 717HCF halt and catch fire 718HCI host controller interface 719HCI human-computer interaction 720HCL hardware compatibility list 721HDCP High-bandwidth Digital Content Protection 722HDD hard disk drive 723HDL hardware description language 724HDMI High-Definition Multimedia Interface 725HDTV high-definition television 726HECI host embedded controller interface 727HEST hardware error source table 728HEVC high efficiency video coding 729HF high frequency 730HFM highest frequency mode 731HFS hierarchical file system 732HID human interface device 733HKDF HMAC-based key derivation function 734HKP HTTP Keyserver Protocol 735HLE hardware lock elision (Intel) 736HLL high-level language 737HMA high memory area 738HMI human-machine interface 739HNDL harvest now, decrypt later 740HOOD hierarchical object oriented design 741HOTP HMAC-based one time password 742HP Hewlett-Packard 743HPC high performance computing 744HPD hot plug detection 745HPET high precision event timer 746HPKE hybrid public key encryption 747HQC Hamming Quasi-Cyclic 748HSM hardware security module 749HSM hierarchical storage management 750HSRP hot standby router protocol 751HT hyper-threading 752HTC hardware thermal control 753HTCC high temperature co-fired ceramic 754HTML HyperText Markup Language 755HTT hyper-threading technology 756HTTP Hypertext Transfer Protocol 757HTTPS Hypertext Transfer Protocol Secure 758HVDS High-Voltage Differential Signaling 759HVM hardware virtual machine 760HWASAN Hardware-assisted Address Sanitizer 761HZ Hertz 762I2O intelligent input/output 763IA information assurance 764IAAS infrastructure as a service 765IAB Internet Architecture Board 766IANA Internet Assigned Numbers Authority 767IBC iterated block cipher 768IBM International Business Machines 769IBPI international blinking pattern interpretation 770IBS instruction based sampling 771IBSS independent basic service set 772IBT indirect branch tracking 773IC integrated circuit 774ICA independent computer architecture 775ICACLS integrity control access control lists 776ICB Internet Citizen's Band 777ICE in-circuit emulator 778ICE internal compiler error 779ICH I/O controller hub 780ICMP Internet Control Message Protocol 781ICT information and communications technology 782ICW initialization command word 783IDA Intel dynamic acceleration 784IDCMP Intuition direct communication message port 785IDCT inverse discrete cosine transform 786IDE integrated development environment 787IDE integrated drive electronics 788IDPS intrusion detection [and] prevention system 789IDRP inter-domain routing protocol 790IDS intrusion detection system 791IDT interrupt descriptor table 792IE Internet Explorer 793IEC International Electrotechnical Commission 794IEEE Institute of Electrical and Electronics Engineers 795IESG Internet Engineering Steering Group 796IETF Internet Engineering Task Force 797IF intermediate frequency 798IFCM isochronous flow control mode 799IFF Interchange File Format 800IFS internal field separator 801IGD Internet gateway device 802IGMP Internet Group Management Protocol 803IGP interior gateway protocol 804IHV independent hardware vendor 805IKE Internet key exchange 806IKM input keying material 807ILM internal loopback mode 808ILOM integrated lights-out management 809ILP instruction level parallelism 810IM instant messaging 811IMAP Internet Message Access Protocol 812IMC integrated memory controller 813IMCR interrupt mode configuration register 814IME input method editor 815IMR interrupt mask register 816IMS information management system 817IMSI international mobile subscriber identity 818INCITS InterNational Committee for Information Technology Standards 819INODE index node 820IO input/output 821IOCTL input/output control 822IOM input/output managers 823IOMMU input/output memory management unit 824IOT Internet of Things 825IP Internet Protocol 826IP intellectual property 827IPC instructions per cycle 828IPC interprocess communication 829IPCF interprocess communication facility 830IPE integrated programming environment 831IPI intelligent peripheral interface 832IPI interprocessor interrupt 833IPL Initial Program Load 834IPL Interrupt Priority Level 835IPMB Intelligent Platform Management Bus 836IPMI Intelligent Platform Management Interface 837IPNG Internet Protocol, Next Generation 838IPS in-plane switching 839IPS intrusion prevention system 840IPSEC Internet Protocol Security 841IR intermediate representation 842IRC Internet Relay Chat 843IRDA infrared data association 844IRDP ICMP Router Discovery Protocol 845IRQ interrupt request 846IRQL interrupt request level 847IRR interrupt request register 848IRTF Internet Research Task Force 849IS information system 850ISA industry standard architecture 851ISA instruction set architecture 852ISB instruction synchronization barrier (Arm) 853ISDN integrated services digital network 854ISE instant secure erase 855ISI inter-symbol interference 856ISL initial system load 857ISM industrial, scientific, [and] medical 858ISMS information system management system 859ISN initial serial number 860ISO International Standards Organization 861ISOC Internet Society 862ISP Internet service provider 863ISR in-service register 864ISR interrupt service routine 865IST internal spanning tree 866IST interrupt stack table 867ISV independent software vendor 868IT information technology 869ITB Intel Turbo Boost 870ITIL information technology infrastructure library 871ITP in-target probe 872ITSM IT service management 873IV initialization vector 874IVT interrupt vector table 875JBOD just a bunch of disks 876JCL Job Control Language 877JFET junction [gate] field-effect transistor 878JIT just in time 879JPEG Joint Photographic Experts Group 880JRE Java Runtime Environment 881JSON JavaScript Object Notation 882JTAG joint test action group 883KASAN Kernel Address Sanitizer 884KASLR kernel address space layout randomization 885KB keyboard 886KB kilobyte 887KBD keyboard 888KBD kilobaud 889KCS keyboard controller style 890KDF key derivation function 891KEK key encryption key 892KEM key encapsulation mechanism 893KLOC thousand lines of code 894KMS kernel-mode setting 895KPI kernel programming interface 896KSK key signing key 897KVA kernel virtual address 898KVM kernel virtual machine 899KVM kernel virtual memory 900KVM keyboard, video, [and] mouse 901L2CAP link layer control and adaptation protocol 902L4S Low Latency, Low Loss and Scalable Throughput (RFC9330) 903LAG link aggregation group 904LAMP Linux Apache MySQL {Perl,PHP,Python} 905LAN local area network 906LAPIC local advanced programmable interrupt controller 907LAR load access rights 908LBA logical block addressing 909LBNF labeled backus-naur form 910LBS location-based service 911LCD liquid crystal display 912LCP link control protocol 913LDA local delivery agent 914LDAP Lightweight Directory Access Protocol 915LDR light-dependent resistor 916LDT local descriptor table 917LE logical extent 918LED light emitting diode 919LELL low energy link layer 920LER label edge router 921LF line feed 922LF low frequency 923LFM lowest frequency mode 924LFN long file names 925LFO low-frequency oscillation 926LFS log-structured file system 927LFU least frequently used 928LHP loop heat pipe 929LIF logical interchange format 930LIFO last in, first out 931LILO LInux LOader 932LILO last in, last out 933LINT local interrupt 934LIR local Internet registry 935LISP LISt Processor 936LISP Locator/ID Separation Protocol 937LKM {Linux,loadable} kernel module 938LKML Linux kernel mailing list 939LL load linked 940LL/SC load linked/store conditional 941LLC logical link control 942LLD low-level design 943LLDD low-level design document 944LLDP link layer discovery protocol 945LLF low level format 946LLMNR link-local multicast name resolution 947LLVM Low Level Virtual Machine 948LM long mode 949LMCE local machine check exception 950LMI local management interface 951LMM link management mode 952LMP link management protocol 953LMS Leighton-Micali Signature 954LNO loop nest optimization 955LOC lines of code 956LOM lights-out management 957LPC low pin count 958LPE Linux performance events 959LPS local positioning system 960LRC longitudinal redundancy check 961LRM left-to-right mark 962LRO Large Receive Offload 963LRO left-to-right override 964LRU least recently used 965LS link state 966LSAN Leak Sanitizer 967LSB Linux standards base 968LSB least significant {bit,byte} 969LSI large scale integration 970LSL load segment limit 971LSM log structured merge 972LSN Large Scale NAT 973LSN log sequence number 974LSO large send offload 975LSR label switch router 976LTCC low temperature co-fired ceramic 977LTO linear tape-open 978LTO link time optimization 979LTR left to right 980LTR letter(-sized paper) 981LTR load task register 982LTS long term support 983LUA Lua Uppercase Accident 984LUN logical unit number 985LV logical volume 986LVDS Low-Voltage Differential Signaling 987LVM logical volume management 988LVT local vector table 989LWP light-weight process 990LZSS Lempel Ziv Storer Szymanski 991LZW Lempel Ziv Welch 992MAB MAC authentication bypass 993MAC mandatory access control 994MAC message authentication {check,code} 995MAC {media,medium} access control 996MADT multiple APIC descriptor table 997MAMR microwave-assisted magnetic recording 998MB megabyte 999MBA multi-boot agent 1000MBR master boot record 1001MBS megabits per second 1002MC memory controller 1003MCA MicroChannel architecture 1004MCA machine check architecture 1005MCC multiversion concurrency control 1006MCE machine check exception 1007MCGA Multi-Color Graphics Array 1008MCH memory controller hub 1009MCLAG multi-chassis link aggregation group 1010MCM multi-chip module 1011MCQ memory controlled queue 1012MD MiniDisc 1013MD machine-dependent 1014MD-SAL model-driven service abstraction layer 1015MDA Monochrome Display Adapter 1016MDA mail delivery agent 1017MDC Management Data Clock 1018MDI Medium Dependent Interface 1019MDI-X Medium Dependent Interface Crossover 1020MDIO Management Data Input/Output 1021MDMX MIPS Digital Media eXtension 1022MDRAM multibank dynamic random access memory 1023MDS microarchitectural data sampling 1024MESI modified, exclusive, shared, invalid 1025MFC Microsoft Foundation Classes 1026MFC merge from current 1027MFM modified frequency modulation 1028MFU most frequently used 1029MGCP media gateway control protocol 1030MHU message handling unit 1031MI machine interface 1032MI machine-independent 1033MIB management information base 1034MIC message integrity {check,code} 1035MID mobile Internet device 1036MIDI musical instrument digital interface 1037MIF management information format 1038MII media independent interface 1039MIM man in the middle 1040MIMD multiple instruction, multiple data 1041MIME Multipurpose Internet Mail Extensions 1042MIMO multiple input multiple output 1043MIPS Microprocessor without Interlocked Pipeline Stages 1044MIPS million instructions per second 1045MISD multiple instruction, single data 1046MIT Massachusetts Institute of Technology 1047MITM man in the middle 1048ML machine language 1049ML machine learning 1050ML mailing list 1051ML markup language 1052ML maximum likelihood 1053ML-KEM module-lattice based key-encapsulation mechanism 1054MLAG multi-chassis link aggregation group 1055MLC multi-level cell 1056MLD multicast listener discovery 1057MLHP micro loop heat pipe 1058MLIR multi-level intermediate representation 1059MLO MMC loader 1060MMC multi-media card 1061MMF multi-mode fiber 1062MMIC monolithic microwave integrated circuit 1063MMIO memory mapped input/output 1064MMORPG massive multiplayer online role playing game 1065MMRP multiple MAC registration protocol 1066MMU memory management unit 1067MMX matrix math extension 1068MMX multimedia extension 1069MMX multiple math extension 1070MO magneto-optical 1071MOESI modified, owned, exclusive, shared, invalid 1072MOF maximum operating frequency 1073MOSFET metal-oxide-semiconductor field-effect transistor 1074MOSI modified, owned, shared, invalid 1075MP multi-platform 1076MP multiplayer 1077MP {multiprocessing,multiprocessor} 1078MPEG moving picture experts group 1079MPI message passing interface 1080MPLS Multiprotocol Label Switching 1081MPP massively parallel processor 1082MPS memory pool system 1083MPS multiprocessor specification 1084MQTT Message Queuing Telemetry Transport 1085MR modem ready 1086MRO method resolution order 1087MRP multiple registration protocol 1088MRU most recently used 1089MS Microsoft 1090MSAN Memory Sanitizer 1091MSB most significant {bit,byte} 1092MSC message sequence chart 1093MSE mean square error 1094MSF minutes seconds frames 1095MSI message signaled interrupt 1096MSI modified, shared, invalid 1097MSR {machine state,model-specific} register 1098MSS maximum segment size 1099MSTP Multiple Spanning Tree Protocol 1100MT machine translation 1101MTA mail transfer agent 1102MTBF mean time between failures 1103MTP media transfer protocol 1104MTRR memory type range register 1105MTTF mean time to failure 1106MTU maximum transmission unit 1107MUA mail user agent 1108MUD multi-user domain 1109MVCC multiversion concurrency control 1110MVR multicast VLAN registration 1111MVRP multiple VLAN registration protocol 1112MWE module width encoding 1113MX mail exchange 1114MZM Majorana zero mode 1115N3U NSEC3 Hash Understood (RFC6975) 1116NACK negative acknowledgement 1117NAK negative acknowledgement 1118NAN neighbor awareness networking 1119NAN not a number 1120NAPT Network Address Port Translation 1121NAS network attached storage 1122NAT network address translation 1123NAV network allocation vector 1124NC numerical control 1125NC-SI network controller sideband interface 1126NCO numerically-controlled oscillator 1127NCP Network Control Protocol 1128NCQ native command queuing 1129NCSI network connectivity status indicator 1130ND neighbor discovery 1131NDFA nondeterministic finite automaton 1132NDIS network driver interface specification 1133NE numeric error 1134NEWS Network extensible Window System 1135NFA nondeterministic finite automaton 1136NFC near-field communication 1137NFCI no functional change intended 1138NFS network file system 1139NFV network function virtualization 1140NHACP NABU HCCA Application Communication Protocol 1141NIA next instruction address 1142NIC network information center 1143NIC network interface card 1144NIDS network intrusion detection system 1145NIKE Non-Interactive Key Exchange 1146NIP network interface protocol 1147NIPR non-classified IP router (network) 1148NIPS network intrusion prevention system 1149NIS network information service 1150NIST National Institute of Standards and Technology 1151NLS native language support 1152NMI non-maskable interrupt 1153NMR nonce-misuse resistance 1154NNTP Network News Transfer Protocol 1155NOC network operations center 1156NOP no operation 1157NOS network operating system 1158NP nondeterministic polynomial time 1159NRND not recommended for new designs 1160NRZ non-return to zero 1161NSA National Security Agency 1162NSA nation-state adversary 1163NSA no such agency 1164NTA negative trust anchor 1165NTM non-deterministic Turing machine 1166NTP Network Time Protocol 1167NUMA non-uniform memory access 1168NURBS non-uniform rational basis spline 1169NVD National Vulnerability Database 1170NVMM NetBSD Virtual Machine Monitor 1171NVMM non-volatile main memory 1172NVRAM non-volatile random access memory 1173NW not write-through 1174NX no execute 1175OAEP optimal asymmetric encryption padding 1176OAM operations, administration, and {management,maintenance} 1177OBO off by one 1178OBOE off by one error 1179OCL object constraint language 1180OCR optical character recognition 1181ODBC Open Database Connectivity 1182ODCM on-demand clock modulation 1183ODE offline device environment 1184ODI open data-link interface 1185ODM object data manager 1186ODMR on-demand mail relay 1187ODT on-die termination 1188OEM original equipment manufacturer 1189OFB output feedback 1190OFDM orthogonal frequency division multiplexing 1191OFET organic field-effect transistor 1192OLAP online analytical processing 1193OLE object linking and embedding 1194OLTP online transaction processing 1195ONCE on-{chip,circuit} emulation 1196ONFI open nand flash interface 1197OO OpenOffice 1198OO object oriented 1199OOB out of band 1200OOE out of order execution 1201OOM out of memory 1202OOO OpenOffice.org 1203OOP object oriented programming 1204OOPS object oriented programming systems 1205OOSE object oriented software engineering 1206OPM operations per minute 1207OPS operations per second 1208OQL Object Query Language 1209ORB object request broker 1210ORM object-relational mapping 1211OS operating system 1212OSD object-based storage device 1213OSD open source definition 1214OSF open software foundation 1215OSI Open Source Initiative 1216OSI open systems interconnection 1217OSPF open shortest path first 1218OSPM OS power management 1219OSS open sound system 1220OSS open source software 1221OSVW operating system visible workarounds 1222OTP one time password 1223OTP open telecom platform 1224OU organizational unit 1225OUI organizationally unique identifier 1226OWASP Open Web Application Security Project 1227OWL Web Ontology Language 1228P2P PCI to PCI 1229P2P peer to peer 1230PA phase accumulator 1231PA physical address 1232PAAS platform as a service 1233PAC phase-amplitude converter 1234PAE physical address extension 1235PAGP port aggregation protocol 1236PAL phase alternating line 1237PAL programmable array logic 1238PAM pluggable authentication modules 1239PAM pulse amplitude modulation 1240PAP password authentication protocol 1241PAT page attribute table 1242PAT port address translation 1243PATA parallel ATA 1244PAX portable archive exchange 1245PBE pending break encoding 1246PBE programming by example 1247PBKDF password-based key derivation function 1248PBR partition boot record 1249PBX private branch exchange 1250PC personal computer 1251PC program counter 1252PCB Protocol Control Block 1253PCB printed circuit board 1254PCB process control block 1255PCBC propagating cipher block chaining 1256PCC Portable C Compiler 1257PCD page-level cache disable 1258PCE path computation element 1259PCE performance-monitor counter enable 1260PCEP Path Computation Element Protocol 1261PCH platform controller hub 1262PCI peripheral component interconnect 1263PCM phase change memory 1264PCM pulse code modulation 1265PCMCIA Personal Computer Memory Card International Association 1266PCP Port Control Protocol 1267PCR Platform Configuration Register 1268PD public domain 1269PDA personal digital assistant 1270PDA pushdown automaton 1271PDAG propositional directed acyclic graph 1272PDB power distribution board 1273PDF portable document format 1274PDM pulse-duration modulation 1275PDN pull-down network 1276PDP page {descriptor,directory} page 1277PDS product data sheet 1278PDU protocol data unit 1279PE portable executable 1280PE protection enable 1281PE provider edge 1282PEAP Protected EAP 1283PECI platform environment control interface 1284PED PIN Entry Device 1285PEP protocol extension protocol 1286PER packed encoding rules 1287PFS perfect forward secrecy 1288PGAS partitioned global address space 1289PGE page global enable 1290PGO profile guided optimization 1291PGP Pretty Good Privacy 1292PHB PCI host bridge 1293PHP PHP: Hypertext Preprocessor 1294PIC performance instrumentation counters 1295PIC position independent code 1296PIC programmable interrupt controller 1297PICNIC problem in chair, not in computer 1298PID process id 1299PIE position independent executable 1300PIL Priority Interrupt Level 1301PIM personal information manager 1302PIM platform-independent model 1303PIO programmed input/output 1304PIPT physically indexed, physically tagged 1305PIQ prefetch input queue 1306PIR private information retrieval 1307PIT programmable interrupt timer 1308PIV personal identity verification 1309PIX Private Internet eXchange 1310PKCS public-key cryptography standards 1311PKE public key encryption 1312PKI public key infrastructure 1313PLC programmable logic controller 1314PLD programmable logic device 1315PLL phase locked loop 1316PLRU pseudo LRU 1317PLT procedure linkage table 1318PLTM package level thermal management 1319PM power management 1320PM {phase,pulse} modulation 1321PMC performance monitoring counters 1322PME power management event 1323PMEG page map entry group 1324PMI performance monitoring infrastructure 1325PMI platform management interrupt 1326PMIC power management integrated circuit 1327PMIO port-mapped input/output 1328PMT photo-multiplier tube 1329PMU performance monitoring units 1330PMU power management unit 1331PNG portable network graphics 1332PNP plug and play 1333POE power over ethernet 1334POF probability of failure 1335POP Post Office Protocol 1336POP power on password 1337POR plan of record 1338POSIX Portable Operating System Interface [for Unix] 1339POST power on self test 1340POTS plain old telephone system 1341POWER Performance Optimization With Enhanced RISC 1342POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1343PP pair programming 1344PPB PCI [to] PCI bridge 1345PPC Power Performance Computing 1346PPC PowerPC 1347PPI pixels per inch 1348PPM pages per minute 1349PPP Point-to-Point Protocol 1350PPPOA Point-to-Point Protocol over ATM 1351PPPOE Point-to-Point Protocol over Ethernet 1352PPR processor programming reference 1353PPT powerpoint 1354PPT punched paper tape 1355PPU physics processing unit 1356PQC post-quantum cryptography 1357PRAM Parameter RAM 1358PRBS pseudorandom bit sequence 1359PRF pseudorandom function [family] 1360PRG pseudorandom generator 1361PRML partial response, maximum likelihood 1362PRN pseudorandom {noise,number} 1363PRNG pseudorandom number generator 1364PROM programmable read only memory 1365PRP pseudorandom permutation 1366PRU Programmable Realtime Unit 1367PS PostScript 1368PSD power spectral density 1369PSE page size extensions 1370PSK phase shift keying 1371PSK pre-shared key 1372PSTN public switched telephone network 1373PSW program status word 1374PTE page table entry 1375PTLA pseudo top level aggregator 1376PTP page table page 1377PTV perceived target value 1378PU processing unit 1379PUC personal unblocking code 1380PUN physical unit number 1381PV physical volume 1382PVC permanent virtual circuit 1383PVG physical volume group 1384PVI protected-mode virtual interrupt 1385PVRST Per-VLAN rapid spanning tree 1386PVST Per-VLAN Spanning Tree 1387PWM pulse width modulation 1388PXE preboot execution environment 1389QA quality assurance 1390QAM quadrature amplitude modulation 1391QAM quality assurance management 1392QBE query by example 1393QC quality control 1394QCIF quarter common intermediate format 1395QDI quasi delay insensitive 1396QOI quality of implementation 1397QOI quick order interface 1398QOS quality of service 1399QPU quantum processing unit 1400QUIC Quick UDP Internet Connections 1401QVL qualified vendor list 1402R/O read only 1403R/W read/write 1404RA receiver address 1405RA remote assistance 1406RA resource affinity 1407RA router advertisement 1408RAD rapid application development 1409RADIUS remote authentication dial-in user service 1410RAID redundant array of {independent,inexpensive} disks 1411RAII resource acquisition is initialization 1412RAM random access memory 1413RAS reliability, availability and serviceability 1414RAS remote access service 1415RAS restartable atomic sequence 1416RAS row address strobe 1417RAT register allocation table 1418RAT remote access trojan 1419RBF radial basis function 1420RBL real-time blackhole list 1421RBL reputation block list 1422RBNF routing backus-naur form 1423RBT red-black tree 1424RC release candidate 1425RC remote control 1426RC run commands 1427RCS Revision Control System 1428RCU read, copy, update 1429RDB Rigid Disk Block 1430RDBMS relational database management system 1431RDF Resource Description Framework 1432RDM relational data model 1433RDMA remote direct memory access 1434RDP remote desktop protocol 1435RDRAM Rambus DRAM 1436RE regular expression 1437REPL read, evaluate, print, loop 1438REST representational state transfer 1439RF radio frequency 1440RFB remote frame buffer 1441RFI radio frequency interference 1442RFO request for ownership 1443RFU reserved for future use 1444RGB red green blue 1445RGBA red green blue alpha 1446RGMII reduced gigabit media independent interface 1447RH read hit 1448RHEL Red Hat Enterprise Linux 1449RHL Red Hat Linux 1450RIB routing information base 1451RIFF Resource Interchange File Format 1452RIP Raster Image Processor 1453RIP Routing Information Protocol 1454RIPR releasable IP router (network) 1455RIR regional Internet registry 1456RISC reduced instruction set {computer,computing} 1457RKM ROM Kernel Manual 1458RLE run length encoding 1459RLL run length limited 1460RLO right-to-left override 1461RM read miss 1462RMCP Remote Management Control Protocol 1463RMI remote method invocation 1464RMO Relaxed Memory Ordering 1465RMPM rapid memory power management 1466RMS root mean square 1467RMW read, modify, write 1468RNG random number generator 1469ROA route origin authorization 1470ROM read only memory 1471ROP return-oriented programming 1472RPC remote procedure call 1473RPG Report Program Generator 1474RPKI resource PKI 1475RPL requested privilege level 1476RPM revolutions per minute 1477RPN reverse Polish notation 1478RPVST Rapid Per-VLAN Spanning Tree 1479RPZ response policy zone 1480RR random replacement 1481RR resource record 1482RR round robin 1483RRSIG resource record signature 1484RS relay station 1485RSA Rivest, Shamir, [and] Adleman 1486RSC Receive Segment Coalescing 1487RSIP Realm Specific IP 1488RSN Robust Secure Network 1489RSS Receive Side Scaling 1490RSS really simple syndication 1491RSS residual sum of squares 1492RSTP Rapid Spanning Tree Protocol 1493RT real time 1494RTC real time clock 1495RTC real time computing 1496RTF rich text format 1497RTL register transfer language 1498RTL resistor-transistor logic 1499RTL right to left 1500RTM restricted transactional memory (Intel) 1501RTOS real time operating system 1502RTP Real-time Transport Protocol 1503RTS request to send 1504RTT round trip time 1505RTTI run-time type information 1506RUP rational unified process 1507RW Rabin-Williams 1508RWM read-write memory 1509RX {receive,receiver} 1510S/PDIF Sony/Philips Digital Interface Format 1511SA security advisory 1512SA security association 1513SA source address 1514SA structured analysis 1515SAAS software as a service 1516SABRE Semi-automated business research environment 1517SACD super audio compact disc 1518SAD security association database 1519SAF-TE SCSI accessed fault-tolerant enclosure 1520SAGE Semi-automated ground environment 1521SAL {service,system} abstraction layer 1522SAM serial access memory 1523SAM sum addressed memory 1524SAML security assertion markup language 1525SAN storage area network 1526SAP service access point 1527SAPIC streamlined advanced programmable interrupt controller 1528SASD structured analysis, structured design 1529SASI Shugart Associates System Interface 1530SASL simple authentication [and] security layer 1531SATA serial advanced technology attachment 1532SAX simple API for XML 1533SB sound blaster 1534SBI supervisor binary interface 1535SBOM Software Bill of Materials 1536SBSA server base system architecture 1537SBU standard build unit 1538SC store conditional 1539SCA source code analyzer 1540SCADA supervisory control and data acquisition 1541SCC single chip cloud 1542SCC source code control 1543SCCP skinny call control protocol 1544SCCS Source Code Control System 1545SCI scalable coherent interface 1546SCI system control interrupt 1547SCIM smart common input method 1548SCM software configuration management 1549SCM source code management 1550SCM storage-class memory 1551SCO synchronous connection orientated 1552SCP secure copy 1553SCP system control processor 1554SCPI system control and power interface 1555SCSI Small Computer System Interface 1556SCT Signed Certificate Timestamp 1557SCTP Stream Control Transmission Protocol 1558SDDC software defined data center 1559SDEI software delegated exception interface 1560SDI symbol deinterleave 1561SDK software development kit 1562SDL Simple Declarative Language 1563SDL Simple Direct-media Layer 1564SDLC {software,system,systems} development life cycle 1565SDN software defined networking 1566SDP Session Description Protocol 1567SDR software defined radio 1568SDRAM synchronous dynamic random access memory 1569SDS software defined storage 1570SDT syntax-directed translation 1571SEA synchronous external abort 1572SED self-encrypting drive 1573SED stream editor 1574SEGV segmentation violation 1575SEMB serial ATA enclosure management bridge 1576SEO search engine optimization 1577SES SCSI enclosure services 1578SFC sequential function chart 1579SFI simple firmware interface 1580SFI software fault isolation 1581SFP small form-factor pluggable 1582SFTP SSH File Transfer Protocol 1583SFTP Serial File Transfer Protocol 1584SFTP Simple File Transfer Protocol 1585SGI Silicon Graphics, Inc 1586SGI software generated interrupt 1587SGMII serial gigabit media independent interface 1588SGPIO serial general purpose input/output 1589SGRAM synchronous graphics random access memory 1590SHA secure hash algorithm 1591SICP structure and interpretation of computer programs 1592SIDH supersingular isogeny Diffie-Hellman 1593SIEM security information and event management 1594SIF source input format 1595SIFS short inter-frame space 1596SIM subscriber identity module 1597SIMD single instruction, multiple data 1598SIMM single inline memory module 1599SIP Session Initiation Protocol 1600SIPR secret IP router (network) 1601SIR signal-to-interference ratio 1602SIR slow infrared 1603SIRT security incident response team 1604SISD single instruction, single data 1605SIV synthetic initialization vector 1606SLAAC stateless address auto-configuration 1607SLC single-level cell 1608SLDRAM synchronous-link dynamic random access memory 1609SLED single large expensive disk 1610SLI scalable link interface 1611SLI scan-line interleave 1612SLIC system license internal code 1613SLOC source lines of code 1614SLRU segmented LRU 1615SMA smart memory access 1616SMAF system management action field 1617SMAP Simple Mail Access Protocol 1618SMAP supervisor mode access prevention 1619SMART self-monitoring analysis and reporting technology 1620SMB Server Message Block 1621SMB system management bus 1622SMBIOS System Management BIOS 1623SMC system management controller 1624SMD storage module device 1625SMEP supervisor mode execution protection 1626SMF single mode fiber 1627SMI structure of management information 1628SMI system management interrupt 1629SMM system management mode 1630SMP serial management protocol 1631SMP symmetric multiprocessing 1632SMR shingled magnetic recording 1633SMR state machine replication 1634SMT simultaneous multithreading 1635SMTP Simple Mail Transfer Protocol 1636SMU system management unit 1637SNA systems network architecture 1638SNAP Sub-Network Access Protocol 1639SNIA Storage Networking Industry Association 1640SNMP Simple Network Management Protocol 1641SNR signal-to-noise ratio 1642SOA service oriented architecture 1643SOAP Simple Object Access Protocol 1644SOC security operations center 1645SOC system on chip 1646SOF start of frame 1647SOH start of header 1648SOHO small office/home office 1649SOL serial over LAN 1650SOM system on module 1651SP service pack 1652SP stack pointer 1653SPA storage pool allocator 1654SPAN switched port analyzer 1655SPARC scalable processor architecture 1656SPARQL SPARQL Protocol and RDF Query Language 1657SPD security policy database 1658SPD serial presence detect 1659SPDIF Sony/Philips digital interface format 1660SPI serial peripheral interface 1661SPI stateful packet inspection 1662SPIR standard portable intermediate representation 1663SPL secondary program loader 1664SPL spinlock 1665SPL system interrupt priority level 1666SPMD single process, multiple data 1667SPR special purpose register 1668SPT sectors per track 1669SQA software quality assurance 1670SQCIF sub quarter common intermediate format 1671SQL Structured Query Language 1672SRAM static random access memory 1673SRC sample rate conversion 1674SRP SCSI RDMA protocol 1675SRR shaped round robin 1676SRS Sender Rewriting Scheme 1677SRTP Secure Real-time Transport Protocol 1678SS self-snoop 1679SS stack segment 1680SSA static single assignment 1681SSAP source service access point 1682SSB single-sideband modulation 1683SSB speculative store bypass 1684SSBB speculative store bypass barrier (Arm) 1685SSBD speculative store bypass disable (Intel) 1686SSC spread spectrum clock 1687SSD solid state drive 1688SSE streaming SIMD extensions 1689SSFDC solid state floppy disc card 1690SSH secure shell 1691SSI server side includes 1692SSID service set identifier 1693SSL secure sockets layer 1694SSP stack smashing protection 1695SSRF server-side request forgery 1696SSTP secure socket tunneling protocol 1697STC software thermal control 1698STD state transition diagram 1699STEK session ticket encryption key 1700STM software transactional memory 1701STOMP Streaming Text Oriented Messaging Protocol 1702STP Spanning Tree Protocol 1703STP shielded twisted pair 1704STRG spanning tree root guard 1705SUN Stanford University Network 1706SUS Single Unix Specification 1707SUT system under test 1708SVC switched virtual circuit 1709SVG scalable vector graphics 1710SVGA Super Video Graphics Array 1711SVI {switch,switched} virtual interface 1712SVM secure virtual machine 1713SVM support vector machine 1714SVR System V Release 1715SVS Separate Virtual Space 1716SWF Shockwave Flash 1717SWIG simplified wrapper [and] interface generator 1718SYR symbol timing recovery 1719TA test assertion 1720TA transmitter address 1721TAA transactional asynchronous abort (Intel) 1722TACACS terminal access controller access-control system 1723TAI international atomic time 1724TAO track at once 1725TAOCP The Art of Computer Programming 1726TAP Test Anything Protocol 1727TAS test and set 1728TB terabyte 1729TBNF transitional backus-naur form 1730TCB trace capture buffer 1731TCB trusted computing base 1732TCC thermal control circuit 1733TCL tool command language 1734TCP Transmission Control Protocol 1735TCQ tagged command queueing 1736TDC time [to] digital converter 1737TDD test-driven development 1738TDD time division duplex 1739TDM time division multiplexing 1740TDMA time division multiple access 1741TDOA time difference of arrival 1742TDP thermal design {point,power} 1743TDR time-domain reflectometry 1744TECO Text Editor and Corrector 1745TEE Trusted Execution Environment 1746TFT thin film transistor 1747TFTP Trivial File Transfer Protocol 1748TIAS try it and see 1749TIFF tagged image file format 1750TITS try it to see 1751TK temporal key 1752TKIP Temporal Key Integrity Protocol 1753TLA top level aggregator 1754TLB translation lookaside buffer 1755TLD top level domain 1756TLER time-limited error recovery 1757TLI transport layer interface 1758TLS thread local storage 1759TLS transport layer security 1760TLV type, length, value 1761TM Turing machine 1762TM thermal monitor 1763TMDS transition minimized differential signaling 1764TMG transmogrifier 1765TMO timeout 1766TOD time of day 1767TOE TCP offload engine 1768TOFU trust on first use 1769TOS terms of service 1770TOS trusted operating system 1771TOS type of service 1772TOTP time-based one time password 1773TP transaction processing 1774TPI tracks per inch 1775TPM transactions per minute 1776TPM trusted platform module 1777TPR task priority register 1778TPS transactions per second 1779TPS transmission parameters signaling 1780TR task register 1781TR token ring 1782TRL timing recovery loop 1783TRNG true random number generator 1784TS terminal services 1785TS time series 1786TS time stamp 1787TS transport stream 1788TSAN Thread Sanitizer 1789TSC time stamp counter 1790TSD time stamp disable 1791TSDB time series database 1792TSL test, set, lock 1793TSO TCP segmentation offload 1794TSO Total Store Ordering 1795TSO time sharing option 1796TSP Time-Stamp Protocol 1797TSP Tunnel Setup Protocol 1798TSP time synchronization protocol 1799TSP traveling salesman problem 1800TSS task state segment 1801TSV tab-separated values 1802TSX transaction synchronization extensions (Intel) 1803TTL time to live 1804TTL transistor-transistor logic 1805TTM translation table maps 1806TTY teletype 1807TU translation unit 1808TUI {terminal,text-based,textual} user interface 1809TX {transmit out,transmitter} 1810TXG transaction group 1811TZ time zone 1812UAC user {access,account} control 1813UAF use-after-free 1814UART universal asynchronous receiver/transmitter 1815UAT user acceptance testing 1816UB undefined behavior 1817UBSAN Undefined Behavior Sanitizer 1818UC uncacheable 1819UCS unified computing system 1820UCS uniform-cost search 1821UCS universal coded character set 1822UDI uniform driver interface 1823UDMA ultra DMA 1824UDO ultra density optical 1825UDP User Datagram Protocol 1826UDS Unix Domain Socket 1827UEFI unified extensible firmware interface 1828UFO UDP fragmentation offload 1829UFS Unix File System 1830UGA universal graphics adapter 1831UI unit interval 1832UI user interface 1833UICC universal integrated circuit card 1834UID unique identifier 1835UID user identifier 1836UL upload 1837ULA unique local address 1838UMA uniform memory access 1839UMA upper memory area 1840UMB upper memory block 1841UML unified modeling language 1842UMPC ultra-mobile PC 1843UPNP universal plug and play 1844UPS uninterruptible power supply 1845URI uniform resource identifier 1846URL uniform resource locator 1847URN uniform resource name 1848USART universal synchronous/asynchronous receiver/transmitter 1849USB universal serial bus 1850USWC uncacheable speculative write combining 1851UT unit test 1852UTC coordinated universal time 1853UTF unicode transformation formats 1854UTP unshielded twisted pair 1855UTS UNIX time-sharing 1856UUCP Unix-to-Unix Copy Protocol 1857UUID universally unique identifier 1858UUOC useless use of cat 1859UUT unit under test 1860UX user experience 1861VA vertical alignment 1862VA virtual address 1863VA volt-ampere 1864VAX virtual address extension 1865VB Visual Basic 1866VBR volume boot record 1867VCA variable-gain amplifier 1868VCC common collector voltage 1869VCCP virtual chassis control protocol 1870VCF voltage-controlled filter 1871VCM virtual channel memory 1872VCO voltage-controlled oscillator 1873VCP virtual chassis port 1874VCS version control system 1875VDP vulnerability disclosure policy 1876VDPAU Video Decode and Presentation API for Unix 1877VES virtual execution system 1878VESA Video Electronics Standards Association 1879VFO variable-frequency oscillator 1880VFS virtual file system 1881VG volume group 1882VGA Video Graphics Array 1883VHD virtual hard disk 1884VHDCI very high density cable interconnect 1885VID {VLAN,voltage level} identifier 1886VIM Vi IMproved 1887VIPT virtually indexed, physically tagged 1888VIVT virtually indexed, virtually tagged 1889VLAN virtual local area network 1890VLD variable-length decoding 1891VLIW very long instruction word 1892VLSI very large scale integration 1893VLSM variable length subnet mask 1894VM virtual {machine,memory} 1895VME virtual mode extension 1896VMX vector multimedia extensions 1897VMX virtual machine extensions 1898VNC virtual network computing 1899VNI virtual network identifier 1900VOD video on demand 1901VPD vital product data 1902VPN virtual private network 1903VPWS virtual private wire service 1904VR virtual reality 1905VRAM video random access memory 1906VRF virtual routing and forwarding 1907VRM voltage regulator module 1908VROC Virtual RAID On CPU 1909VRRP Virtual Router Redundancy Protocol 1910VSTP VLAN Spanning Tree Protocol 1911VTEP VXLAN tunnel endpoint 1912VTP VLAN Trunking Protocol 1913VXFS Veritas file system 1914VXLAN virtual extensible LAN 1915VXVM Veritas volume manager 1916W watt 1917W3C World Wide Web Consortium 1918WAFL write anywhere file layout 1919WAMP Web Application Messaging Protocol 1920WAN wide area network 1921WAP Wireless Application Protocol 1922WAP wireless access point 1923WDDM Windows Display Driver Model 1924WDM Wavelength Division Multiplexing 1925WDM Windows Driver Model 1926WDT watchdog timer 1927WEP Wired Equivalent Privacy 1928WFI wait for interrupt 1929WFQ weighted fair queuing 1930WH write hit 1931WHEA Windows hardware error architecture 1932WIFI wireless fidelity 1933WLAN wireless local area network 1934WM write miss 1935WMF Windows meta file 1936WMI Windows Management Instrumentation 1937WOL Wake-on-LAN 1938WOM Wake-on-Modem 1939WOR Wake-on-Ring 1940WORM write once read many 1941WP WordPerfect 1942WP word processor 1943WP write protect 1944WPA Wi-Fi Protected Access 1945WPA2 Wi-Fi Protected Access II 1946WPAD web proxy auto-discovery protocol 1947WPS Wi-Fi Protected Setup 1948WRAM window random access memory 1949WS web services 1950WTC write through caching 1951WTD weighted tail drop 1952WWAN wireless wide area network 1953WWW world wide web 1954WYSIAYG what you see is all you get 1955WYSIWYG what you see is what you get 1956XBAR crossbar 1957XDMCP X Display Manager control protocol 1958XER XML encoding rules 1959XGA Extended Graphics Array 1960XHR XMLHttpRequest 1961XIP execute in place 1962XML Extensible Markup Language 1963XMSS eXtended Merkle Signature Scheme 1964XNA XNA's not acronymed 1965XNS Xerox network systems 1966XOF eXtendable-Output Function 1967XOR exclusive or 1968XP extreme programming 1969XSI X/Open System Interface 1970XSL extensible stylesheet language 1971XSLT extensible stylesheet language transformations 1972XSS cross site scripting 1973XT extended technology 1974XTACACS extended terminal access controller access-control system 1975XTI X/Open transport interface 1976XUL XML user interface language 1977YACC yet another compiler compiler 1978YAML YAML ain't markup language 1979YANG yet another next generation 1980YAWPFAPR you are welcome; please file a problem report 1981YP Yellow Pages 1982YTD year to date 1983ZAP ZFS attribute processor 1984ZBR zone bit recording 1985ZFOD zero-filled on demand 1986ZFS zettabyte file system 1987ZIF zero insertion force 1988ZIFS zero insertion force socket 1989ZIL ZFS intent log 1990ZMA zone multicast address 1991ZOI zero one infinity 1992ZOI zone of influence 1993ZPL ZFS Posix layer 1994ZSK zone signing key 1995ZVOL ZFS Volume 1996