acronyms.comp revision 1.405
1$NetBSD: acronyms.comp,v 1.405 2025/03/26 13:00:53 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 376DB database 377DBA database administrator 378DBA dynamic bandwidth allocation 379DBB data bus buffer 380DBC design by contract 381DBL dynamic buffer limiting 382DBMS database management system 383DBS database server 384DC data center 385DC direct current 386DCC Direct Client-to-Client 387DCC direct cable connect 388DCD data carrier detect 389DCE data control equipment 390DCE distributed computing environment 391DCIM data center infrastructure management 392DCIM digital camera images 393DCL Digital Command Language 394DCOM distributed component object model 395DCOP Desktop COmmunication Protocol 396DCS data collection systems 397DCT discrete cosine transform 398DCU data cache unit 399DDC display data channel 400DDE dynamic data exchange 401DDI device drivers interface 402DDK device driver kit 403DDL data description language 404DDR double data rate 405DDS direct digital sound 406DDWG Digital Display Working Group 407DE debugging extensions 408DE desktop environment 409DEA data encryption algorithm 410DEC Digital Equipment Corporation 411DEK data encryption key 412DEP data execution prevention 413DER distinguished encoding rules 414DES Data Encryption Standard 415DF don't fragment 416DFA deterministic finite automaton 417DFC data flow control 418DFS depth first search 419DFS distributed file system 420DFSAN Data Flow Sanitizer 421DFT diagnostic function test 422DFT discrete Fourier transform 423DFZ default-free zone 424DGEMM double precision general matrix multiply 425DGL data generation language 426DH Diffie-Hellman 427DHCP Dynamic Host Configuration Protocol 428DIA dedicated Internet access 429DIB device independent bitmap 430DIFS distributed inter-frame space 431DIMM dual inline memory module 432DIRT design in real time 433DKI driver/kernel interface 434DL diode logic 435DL discrete logarithm 436DL download 437DLCI data link connection identifier 438DLE data link escape 439DLL dynamic link library 440DLNA digital living network alliance 441DLP discrete logarithm problem 442DMA direct memory access 443DMB data memory barrier (Arm) 444DMI desktop management interface 445DMS document management system 446DMT discrete multitone modulation 447DMU data management layer 448DNARD Digital network appliance reference design 449DND drag and drop 450DNLC directory name lookup cache 451DNS Domain Name System 452DNSBL Domain Name System Block List 453DNSSEC DNS Security Extensions 454DOE distributed object environment 455DOF data over fibre 456DOH DNS over HTTPS 457DOM document object model 458DOQ DNS over QUIC 459DOS denial of service 460DOS disk operating system 461DOT DNS over TLS 462DP DisplayPort 463DPAA data path acceleration architecture 464DPC deferred procedure call 465DPCM differential pulse code modulation 466DPD dead peer detection 467DPDK data plane development kit 468DPI deep packet inspection 469DPI dots per inch 470DPL descriptor privilege level 471DPS Display PostScript 472DPST display power savings technology 473DRAAS disaster recovery as a service 474DRAM dynamic random access memory 475DRBG deterministic random bit generator 476DRI direct rendering infrastructure 477DRM digital rights management 478DRM direct rendering manager 479DRN Discovery of Network-designated Resolvers 480DRRS display refresh rate switching 481DS debug store 482DS differentiated services 483DS delegation signer 484DS9000 DeathStation 9000 485DS9K DeathStation 9000 486DSA digital signature algorithm 487DSAP destination service access point 488DSB data synchronization barrier (Arm) 489DSB double-sideband modulation 490DSCP differentiated services code point 491DSDT differentiated system descriptor table 492DSF device special file 493DSL dataset and snapshot layer 494DSL digital subscriber line 495DSL domain specific language 496DSLAM digital subscriber line access multiplexer 497DSN delivery status notification 498DSO dynamic shared object 499DSP digital signal processor 500DSSS direct sequence spread spectrum 501DTB device tree blob 502DTC device tree compiler 503DTD document type definition 504DTE data terminal equipment 505DTE dumb terminal emulator 506DTL diode-transistor logic 507DTLS datagram transport layer security 508DTS device tree source 509DTS digital thermal sensor 510DUT device under test 511DVB digital video broadcasting 512DVCS distributed version control system 513DVD digital versatile disc 514DVFS dynamic voltage and frequency scaling 515DVI Digital Visual Interface 516DVI device independent 517DVR digital video recorder 518DWARF Debugging With Attributed Record Formats 519E-XER extended XML encoding rules 520EABI embedded-application binary interface 521EAI Email Address Internationalization 522EAI Enterprise Application Integration 523EAP Extensible Authentication Protocol 524EAPOL EAP over Lan 525EAV entity-attribute-value model 526EAV ethernet audio/video bridging 527EBCDIC Extended Binary Coded Decimal Interchange Code 528EBDA Extended BIOS Data Area 529EBNF extended backus-naur form 530EBR extended boot record 531EC elliptic curve 532ECC elliptic curve cryptography 533ECC error correction code 534ECDH elliptic curve Diffie-Hellman 535ECDL elliptic curve discrete logarithm 536ECDLP elliptic curve discrete logarithm problem 537ECDSA elliptic curve digital signature algorithm 538EDDSA Edwards-curve digital signature algorithm 539ECL emitter-coupled logic 540ECN explicit congestion notification 541ECP enhanced capability port 542ECS enhanced chip set 543ECS extended configuration space 544EDAC error detection and correction 545EDAT enhanced dynamic acceleration technology 546EDGE explicit data graph execution 547EDID extended display identification data 548EDO extended data out 549EDS electronical data sheet 550EDSAC electronic delay storage automatic calculator 551EDVAC electronic discrete variable automatic computer 552EEE embrace, extend, extinguish 553EEE energy efficient ethernet 554EEPROM electrically erasable programmable read only memory 555EFI extensible firmware interface 556EFL emitter follower logic 557EFM eight to fourteen modulation 558EFS extent file system 559EGA Enhanced Graphics Adapter 560EGP exterior gateway protocol 561EH extension header 562EIDE enhanced IDE 563EINJ error injection table 564EISA extended industry standard architecture 565ELF executable and linking format 566ELS entry level system 567EMACS Editor MACroS 568EMI electro-magnetic interference 569EMP electro-magnetic pulse 570EMR electro-magnetic radiation 571ENIAC electronic numerical integrator and computer 572EOF end of file 573EOI end of interrupt 574EOIS end of interactive support 575EOL end of life 576EOL end of line 577EOT end of transmission 578EPIC explicitly parallel instruction computing 579EPP enhanced parallel port 580EPP extensible provisioning protocol (RFC5730) 581EPRML extended partial response, maximum likelihood 582EPROM erasable programmable read only memory 583EPSS Exploit Prediction Scoring System 584EPT extended page tables 585ERC error recovery control 586ERD emergency recovery disk 587ERD entity relationship diagram 588ERE extended regular expression 589ERST error record serialization table 590ESAN Efficiency Sanitizer 591ESB enterprise service bus 592ESDI enhanced small disk interface 593ESDRAM enhanced synchronous dynamic random access memory 594ESI enclosure services interface 595ESS electronic switching system 596ESS extended service set 597ESSID extended service set identifier 598EST enhanced speedstep 599ETL extract, transform, load 600EU execution unit 601EULA end user license agreement 602EdDSA Edwards curve digital signature algorithm 603FAT file allocation table 604FBRAM frame buffer random access memory 605FCIF full common intermediate format 606FCL fiber channel loop 607FCS frame check sequence 608FDC floppy disk controller 609FDD floppy disk drive 610FDDI fiber distributed data interface 611FDE full disk encryption 612FDT flattened device tree 613FEA finite element analysis 614FEC forward error correction 615FET field-effect transistor 616FF finite field 617FF form feed 618FFDH finite-field Diffie-Hellman 619FFH functional fixed hardware 620FFI foreign function interface 621FFM focus follows mouse 622FFS Fast File System 623FFS find first set 624FFT fast Fourier transform 625FG floating gate 626FHE fully homomorphic encryption 627FHRP first hop redundancy protocol 628FHSS frequency hop spread spectrum 629FID frequency identifier 630FIFO first in, first out 631FILO first in, last out 632FIPS Federal Information Processing Standards 633FIR fast infrared 634FLOPS floating [point] operations per second 635FLOSS free/libre/open source software 636FM frequency modulation 637FMR false match rate 638FOSS free/open source software 639FPGA field programmable gate array 640FPM fast page mode 641FPR floating point register 642FPU floating point unit 643FQDN fully qualified domain name 644FRR false rejection rate 645FRR Free Range Routing 646FRU field replaceable unit 647FS file system 648FSB front side bus 649FSCK file system check 650FSF Free Software Foundation 651FSK frequency shift keying 652FSM finite-state machine 653FTA fault tree analysis 654FTL flash translation layer 655FTP File Transfer Protocol 656FTPS File Transfer Protocol Secure 657FTTH fiber to the home 658FUS fast user switching 659FWH firmware hub 660FWS folding white space 661GAL generic array logic 662GARP generic attribute registration protocol 663GAS generic address structure 664GC garbage collector 665GCC GNU Compiler Collection 666GCM Galois counter mode 667GCR group-coded recording 668GDI Graphics Device Interface 669GDT global descriptor table 670GDT (block) group descriptor table 671GECOS general comprehensive operating supervisor 672GEM graphics environment manager 673GEM graphics execution manager 674GEMM general matrix multiply 675GENA general event notification architecture 676GHC Glasgow Haskell compiler 677GHES generic hardware error source 678GIC generic interrupt controller 679GID group identifier 680GIF graphics interchange format 681GLBP gateway load balancing protocol 682GMCH graphics and memory controller hub 683GNU GNU's Not Unix 684GOP graphics output protocol 685GOT global offset table 686GPE general purpose event 687GPF general protection fault 688GPG GNU Privacy Guard 689GPL [GNU] General Public License 690GPR general purpose register 691GPS generalized processor sharing 692GPT GUID partition table 693GPU graphics processing unit 694GR golden ratio 695GRE generic routing encapsulation 696GRO generic receive offload 697GSI global system interrupt 698GSO generic send offload 699GUA global unicast address 700GUI graphical user interface 701GUID globally unique identifier 702GUS Gravis UltraSound 703GVFS git virtual file system 704HA high availability 705HAL hardware abstraction layer 706HAT hashed array tree 707HATEOAS hypermedia as the engine of application state 708HBA host bus adapter 709HBS hash-based signature 710HCC Home Cable Computer 711HCCA Home Cable Computer Adaptor 712HCF halt and catch fire 713HCI host controller interface 714HCI human-computer interaction 715HCL hardware compatibility list 716HDCP High-bandwidth Digital Content Protection 717HDD hard disk drive 718HDL hardware description language 719HDMI High-Definition Multimedia Interface 720HDTV high-definition television 721HECI host embedded controller interface 722HEST hardware error source table 723HEVC high efficiency video coding 724HF high frequency 725HFM highest frequency mode 726HFS hierarchical file system 727HID human interface device 728HKDF HMAC-based key derivation function 729HKP HTTP Keyserver Protocol 730HLE hardware lock elision (Intel) 731HLL high-level language 732HMA high memory area 733HMI human-machine interface 734HNDL harvest now, decrypt later 735HOOD hierarchical object oriented design 736HOTP HMAC-based one time password 737HP Hewlett-Packard 738HPC high performance computing 739HPD hot plug detection 740HPET high precision event timer 741HPKE hybrid public key encryption 742HQC Hamming Quasi-Cyclic 743HSM hardware security module 744HSM hierarchical storage management 745HSRP hot standby router protocol 746HT hyper-threading 747HTC hardware thermal control 748HTCC high temperature co-fired ceramic 749HTML HyperText Markup Language 750HTT hyper-threading technology 751HTTP Hypertext Transfer Protocol 752HTTPS Hypertext Transfer Protocol Secure 753HVDS High-Voltage Differential Signaling 754HVM hardware virtual machine 755HWASAN Hardware-assisted Address Sanitizer 756HZ Hertz 757I2O intelligent input/output 758IA information assurance 759IAAS infrastructure as a service 760IAB Internet Architecture Board 761IANA Internet Assigned Numbers Authority 762IBC iterated block cipher 763IBM International Business Machines 764IBPI international blinking pattern interpretation 765IBS instruction based sampling 766IBSS independent basic service set 767IBT indirect branch tracking 768IC integrated circuit 769ICA independent computer architecture 770ICACLS integrity control access control lists 771ICB Internet Citizen's Band 772ICE in-circuit emulator 773ICE internal compiler error 774ICH I/O controller hub 775ICMP Internet Control Message Protocol 776ICT information and communications technology 777ICW initialization command word 778IDA Intel dynamic acceleration 779IDCMP Intuition direct communication message port 780IDCT inverse discrete cosine transform 781IDE integrated development environment 782IDE integrated drive electronics 783IDPS intrusion detection [and] prevention system 784IDRP inter-domain routing protocol 785IDS intrusion detection system 786IDT interrupt descriptor table 787IE Internet Explorer 788IEC International Electrotechnical Commission 789IEEE Institute of Electrical and Electronics Engineers 790IESG Internet Engineering Steering Group 791IETF Internet Engineering Task Force 792IF intermediate frequency 793IFCM isochronous flow control mode 794IFF Interchange File Format 795IFS internal field separator 796IGD Internet gateway device 797IGMP Internet Group Management Protocol 798IGP interior gateway protocol 799IHV independent hardware vendor 800IKE Internet key exchange 801IKM input keying material 802ILM internal loopback mode 803ILOM integrated lights-out management 804ILP instruction level parallelism 805IM instant messaging 806IMAP Internet Message Access Protocol 807IMC integrated memory controller 808IMCR interrupt mode configuration register 809IME input method editor 810IMR interrupt mask register 811IMS information management system 812IMSI international mobile subscriber identity 813INCITS InterNational Committee for Information Technology Standards 814INODE index node 815IO input/output 816IOCTL input/output control 817IOM input/output managers 818IOMMU input/output memory management unit 819IOT Internet of Things 820IP Internet Protocol 821IP intellectual property 822IPC instructions per cycle 823IPC interprocess communication 824IPCF interprocess communication facility 825IPE integrated programming environment 826IPI intelligent peripheral interface 827IPI interprocessor interrupt 828IPL Initial Program Load 829IPL Interrupt Priority Level 830IPMB Intelligent Platform Management Bus 831IPMI Intelligent Platform Management Interface 832IPNG Internet Protocol, Next Generation 833IPS in-plane switching 834IPS intrusion prevention system 835IPSEC Internet Protocol Security 836IR intermediate representation 837IRC Internet Relay Chat 838IRDA infrared data association 839IRDP ICMP Router Discovery Protocol 840IRQ interrupt request 841IRQL interrupt request level 842IRR interrupt request register 843IRTF Internet Research Task Force 844IS information system 845ISA industry standard architecture 846ISA instruction set architecture 847ISB instruction synchronization barrier (Arm) 848ISDN integrated services digital network 849ISE instant secure erase 850ISI inter-symbol interference 851ISL initial system load 852ISM industrial, scientific, [and] medical 853ISMS information system management system 854ISN initial serial number 855ISO International Standards Organization 856ISOC Internet Society 857ISP Internet service provider 858ISR in-service register 859ISR interrupt service routine 860IST internal spanning tree 861IST interrupt stack table 862ISV independent software vendor 863IT information technology 864ITB Intel Turbo Boost 865ITIL information technology infrastructure library 866ITP in-target probe 867ITSM IT service management 868IV initialization vector 869IVT interrupt vector table 870JBOD just a bunch of disks 871JCL Job Control Language 872JFET junction [gate] field-effect transistor 873JIT just in time 874JPEG Joint Photographic Experts Group 875JRE Java Runtime Environment 876JSON JavaScript Object Notation 877JTAG joint test action group 878KASAN Kernel Address Sanitizer 879KASLR kernel address space layout randomization 880KB keyboard 881KB kilobyte 882KBD keyboard 883KBD kilobaud 884KCS keyboard controller style 885KDF key derivation function 886KEK key encryption key 887KEM key encapsulation mechanism 888KLOC thousand lines of code 889KMS kernel-mode setting 890KPI kernel programming interface 891KSK key signing key 892KVA kernel virtual address 893KVM kernel virtual machine 894KVM kernel virtual memory 895KVM keyboard, video, [and] mouse 896L2CAP link layer control and adaptation protocol 897LAG link aggregation group 898LAMP Linux Apache MySQL {Perl,PHP,Python} 899LAN local area network 900LAPIC local advanced programmable interrupt controller 901LAR load access rights 902LBA logical block addressing 903LBNF labeled backus-naur form 904LBS location-based service 905LCD liquid crystal display 906LCP link control protocol 907LDA local delivery agent 908LDAP Lightweight Directory Access Protocol 909LDR light-dependent resistor 910LDT local descriptor table 911LE logical extent 912LED light emitting diode 913LELL low energy link layer 914LER label edge router 915LF line feed 916LF low frequency 917LFM lowest frequency mode 918LFN long file names 919LFO low-frequency oscillation 920LFS log-structured file system 921LFU least frequently used 922LHP loop heat pipe 923LIF logical interchange format 924LIFO last in, first out 925LILO LInux LOader 926LILO last in, last out 927LINT local interrupt 928LIR local Internet registry 929LISP LISt Processor 930LISP Locator/ID Separation Protocol 931LKM {Linux,loadable} kernel module 932LKML Linux kernel mailing list 933LL load linked 934LL/SC load linked/store conditional 935LLC logical link control 936LLD low-level design 937LLDD low-level design document 938LLDP link layer discovery protocol 939LLF low level format 940LLMNR link-local multicast name resolution 941LLVM Low Level Virtual Machine 942LM long mode 943LMCE local machine check exception 944LMI local management interface 945LMM link management mode 946LMP link management protocol 947LMS Leighton-Micali Signature 948LNO loop nest optimization 949LOC lines of code 950LOM lights-out management 951LPC low pin count 952LPE Linux performance events 953LPS local positioning system 954LRC longitudinal redundancy check 955LRM left-to-right mark 956LRO Large Receive Offload 957LRO left-to-right override 958LRU least recently used 959LS link state 960LSAN Leak Sanitizer 961LSB Linux standards base 962LSB least significant {bit,byte} 963LSI large scale integration 964LSL load segment limit 965LSM log structured merge 966LSN Large Scale NAT 967LSN log sequence number 968LSO large send offload 969LSR label switch router 970LTCC low temperature co-fired ceramic 971LTO linear tape-open 972LTO link time optimization 973LTR left to right 974LTR letter(-sized paper) 975LTR load task register 976LTS long term support 977LUA Lua Uppercase Accident 978LUN logical unit number 979LV logical volume 980LVDS Low-Voltage Differential Signaling 981LVM logical volume management 982LVT local vector table 983LWP light-weight process 984LZSS Lempel Ziv Storer Szymanski 985LZW Lempel Ziv Welch 986MAB MAC authentication bypass 987MAC mandatory access control 988MAC message authentication {check,code} 989MAC {media,medium} access control 990MADT multiple APIC descriptor table 991MAMR microwave-assisted magnetic recording 992MB megabyte 993MBA multi-boot agent 994MBR master boot record 995MBS megabits per second 996MC memory controller 997MCA MicroChannel architecture 998MCA machine check architecture 999MCC multiversion concurrency control 1000MCE machine check exception 1001MCGA Multi-Color Graphics Array 1002MCH memory controller hub 1003MCLAG multi-chassis link aggregation group 1004MCM multi-chip module 1005MCQ memory controlled queue 1006MD MiniDisc 1007MD machine-dependent 1008MD-SAL model-driven service abstraction layer 1009MDA Monochrome Display Adapter 1010MDA mail delivery agent 1011MDC Management Data Clock 1012MDI Medium Dependent Interface 1013MDI-X Medium Dependent Interface Crossover 1014MDIO Management Data Input/Output 1015MDMX MIPS Digital Media eXtension 1016MDRAM multibank dynamic random access memory 1017MDS microarchitectural data sampling 1018MESI modified, exclusive, shared, invalid 1019MFC Microsoft Foundation Classes 1020MFC merge from current 1021MFM modified frequency modulation 1022MFU most frequently used 1023MGCP media gateway control protocol 1024MHU message handling unit 1025MI machine interface 1026MI machine-independent 1027MIB management information base 1028MIC message integrity {check,code} 1029MID mobile Internet device 1030MIDI musical instrument digital interface 1031MIF management information format 1032MII media independent interface 1033MIM man in the middle 1034MIMD multiple instruction, multiple data 1035MIME Multipurpose Internet Mail Extensions 1036MIMO multiple input multiple output 1037MIPS Microprocessor without Interlocked Pipeline Stages 1038MIPS million instructions per second 1039MISD multiple instruction, single data 1040MIT Massachusetts Institute of Technology 1041MITM man in the middle 1042ML machine language 1043ML machine learning 1044ML mailing list 1045ML markup language 1046ML maximum likelihood 1047ML-KEM module-lattice based key-encapsulation mechanism 1048MLAG multi-chassis link aggregation group 1049MLC multi-level cell 1050MLD multicast listener discovery 1051MLHP micro loop heat pipe 1052MLIR multi-level intermediate representation 1053MLO MMC loader 1054MMC multi-media card 1055MMF multi-mode fiber 1056MMIC monolithic microwave integrated circuit 1057MMIO memory mapped input/output 1058MMORPG massive multiplayer online role playing game 1059MMRP multiple MAC registration protocol 1060MMU memory management unit 1061MMX matrix math extension 1062MMX multimedia extension 1063MMX multiple math extension 1064MO magneto-optical 1065MOESI modified, owned, exclusive, shared, invalid 1066MOF maximum operating frequency 1067MOSFET metal-oxide-semiconductor field-effect transistor 1068MOSI modified, owned, shared, invalid 1069MP multi-platform 1070MP multiplayer 1071MP {multiprocessing,multiprocessor} 1072MPEG moving picture experts group 1073MPI message passing interface 1074MPLS Multiprotocol Label Switching 1075MPP massively parallel processor 1076MPS memory pool system 1077MPS multiprocessor specification 1078MQTT Message Queuing Telemetry Transport 1079MR modem ready 1080MRO method resolution order 1081MRP multiple registration protocol 1082MRU most recently used 1083MS Microsoft 1084MSAN Memory Sanitizer 1085MSB most significant {bit,byte} 1086MSC message sequence chart 1087MSE mean square error 1088MSF minutes seconds frames 1089MSI message signaled interrupt 1090MSI modified, shared, invalid 1091MSR {machine state,model-specific} register 1092MSS maximum segment size 1093MSTP Multiple Spanning Tree Protocol 1094MT machine translation 1095MTA mail transfer agent 1096MTBF mean time between failures 1097MTP media transfer protocol 1098MTRR memory type range register 1099MTTF mean time to failure 1100MTU maximum transmission unit 1101MUA mail user agent 1102MUD multi-user domain 1103MVCC multiversion concurrency control 1104MVR multicast VLAN registration 1105MVRP multiple VLAN registration protocol 1106MWE module width encoding 1107MX mail exchange 1108MZM Majorana zero mode 1109NACK negative acknowledgement 1110NAK negative acknowledgement 1111NAN neighbor awareness networking 1112NAN not a number 1113NAPT Network Address Port Translation 1114NAS network attached storage 1115NAT network address translation 1116NAV network allocation vector 1117NC numerical control 1118NC-SI network controller sideband interface 1119NCO numerically-controlled oscillator 1120NCP Network Control Protocol 1121NCQ native command queuing 1122NCSI network connectivity status indicator 1123ND neighbor discovery 1124NDFA nondeterministic finite automaton 1125NDIS network driver interface specification 1126NE numeric error 1127NEWS Network extensible Window System 1128NFA nondeterministic finite automaton 1129NFC near-field communication 1130NFCI no functional change intended 1131NFS network file system 1132NFV network function virtualization 1133NHACP NABU HCCA Application Communication Protocol 1134NIA next instruction address 1135NIC network information center 1136NIC network interface card 1137NIDS network intrusion detection system 1138NIKE Non-Interactive Key Exchange 1139NIP network interface protocol 1140NIPR non-classified IP router (network) 1141NIPS network intrusion prevention system 1142NIS network information service 1143NIST National Institute of Standards and Technology 1144NLS native language support 1145NMI non-maskable interrupt 1146NMR nonce-misuse resistance 1147NNTP Network News Transfer Protocol 1148NOC network operations center 1149NOP no operation 1150NOS network operating system 1151NP nondeterministic polynomial time 1152NRND not recommended for new designs 1153NRZ non-return to zero 1154NSA National Security Agency 1155NSA nation-state adversary 1156NSA no such agency 1157NTA negative trust anchor 1158NTM non-deterministic Turing machine 1159NTP Network Time Protocol 1160NUMA non-uniform memory access 1161NURBS non-uniform rational basis spline 1162NVD National Vulnerability Database 1163NVMM NetBSD Virtual Machine Monitor 1164NVMM non-volatile main memory 1165NVRAM non-volatile random access memory 1166NW not write-through 1167NX no execute 1168OAEP optimal asymmetric encryption padding 1169OAM operations, administration, and {management,maintenance} 1170OBO off by one 1171OBOE off by one error 1172OCL object constraint language 1173OCR optical character recognition 1174ODBC Open Database Connectivity 1175ODCM on-demand clock modulation 1176ODE offline device environment 1177ODI open data-link interface 1178ODM object data manager 1179ODMR on-demand mail relay 1180ODT on-die termination 1181OEM original equipment manufacturer 1182OFB output feedback 1183OFDM orthogonal frequency division multiplexing 1184OFET organic field-effect transistor 1185OLAP online analytical processing 1186OLE object linking and embedding 1187OLTP online transaction processing 1188ONCE on-{chip,circuit} emulation 1189ONFI open nand flash interface 1190OO OpenOffice 1191OO object oriented 1192OOB out of band 1193OOE out of order execution 1194OOM out of memory 1195OOO OpenOffice.org 1196OOP object oriented programming 1197OOPS object oriented programming systems 1198OOSE object oriented software engineering 1199OPM operations per minute 1200OPS operations per second 1201OQL Object Query Language 1202ORB object request broker 1203ORM object-relational mapping 1204OS operating system 1205OSD object-based storage device 1206OSD open source definition 1207OSF open software foundation 1208OSI Open Source Initiative 1209OSI open systems interconnection 1210OSPF open shortest path first 1211OSPM OS power management 1212OSS open sound system 1213OSS open source software 1214OSVW operating system visible workarounds 1215OTP one time password 1216OTP open telecom platform 1217OU organizational unit 1218OUI organizationally unique identifier 1219OWASP Open Web Application Security Project 1220OWL Web Ontology Language 1221P2P PCI to PCI 1222P2P peer to peer 1223PA phase accumulator 1224PA physical address 1225PAAS platform as a service 1226PAC phase-amplitude converter 1227PAE physical address extension 1228PAGP port aggregation protocol 1229PAL phase alternating line 1230PAL programmable array logic 1231PAM pluggable authentication modules 1232PAM pulse amplitude modulation 1233PAP password authentication protocol 1234PAT page attribute table 1235PAT port address translation 1236PATA parallel ATA 1237PAX portable archive exchange 1238PBE pending break encoding 1239PBE programming by example 1240PBKDF password-based key derivation function 1241PBR partition boot record 1242PBX private branch exchange 1243PC personal computer 1244PC program counter 1245PCB Protocol Control Block 1246PCB printed circuit board 1247PCB process control block 1248PCBC propagating cipher block chaining 1249PCC Portable C Compiler 1250PCD page-level cache disable 1251PCE path computation element 1252PCE performance-monitor counter enable 1253PCEP Path Computation Element Protocol 1254PCH platform controller hub 1255PCI peripheral component interconnect 1256PCM phase change memory 1257PCM pulse code modulation 1258PCMCIA Personal Computer Memory Card International Association 1259PCP Port Control Protocol 1260PD public domain 1261PDA personal digital assistant 1262PDA pushdown automaton 1263PDAG propositional directed acyclic graph 1264PDB power distribution board 1265PDF portable document format 1266PDM pulse-duration modulation 1267PDN pull-down network 1268PDP page {descriptor,directory} page 1269PDS product data sheet 1270PDU protocol data unit 1271PE portable executable 1272PE protection enable 1273PE provider edge 1274PEAP Protected EAP 1275PECI platform environment control interface 1276PED PIN Entry Device 1277PEP protocol extension protocol 1278PER packed encoding rules 1279PFS perfect forward secrecy 1280PGAS partitioned global address space 1281PGE page global enable 1282PGO profile guided optimization 1283PGP Pretty Good Privacy 1284PHB PCI host bridge 1285PHP PHP: Hypertext Preprocessor 1286PIC performance instrumentation counters 1287PIC position independent code 1288PIC programmable interrupt controller 1289PICNIC problem in chair, not in computer 1290PID process id 1291PIE position independent executable 1292PIL Priority Interrupt Level 1293PIM personal information manager 1294PIM platform-independent model 1295PIO programmed input/output 1296PIPT physically indexed, physically tagged 1297PIQ prefetch input queue 1298PIR private information retrieval 1299PIT programmable interrupt timer 1300PIV personal identity verification 1301PIX Private Internet eXchange 1302PKCS public-key cryptography standards 1303PKE public key encryption 1304PKI public key infrastructure 1305PLC programmable logic controller 1306PLD programmable logic device 1307PLL phase locked loop 1308PLRU pseudo LRU 1309PLT procedure linkage table 1310PLTM package level thermal management 1311PM power management 1312PM {phase,pulse} modulation 1313PMC performance monitoring counters 1314PME power management event 1315PMEG page map entry group 1316PMI performance monitoring infrastructure 1317PMI platform management interrupt 1318PMIC power management integrated circuit 1319PMIO port-mapped input/output 1320PMT photo-multiplier tube 1321PMU performance monitoring units 1322PMU power management unit 1323PNG portable network graphics 1324PNP plug and play 1325POE power over ethernet 1326POF probability of failure 1327POP Post Office Protocol 1328POP power on password 1329POR plan of record 1330POSIX Portable Operating System Interface [for Unix] 1331POST power on self test 1332POTS plain old telephone system 1333POWER Performance Optimization With Enhanced RISC 1334POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1335PP pair programming 1336PPB PCI [to] PCI bridge 1337PPC Power Performance Computing 1338PPC PowerPC 1339PPI pixels per inch 1340PPM pages per minute 1341PPP Point-to-Point Protocol 1342PPPOA Point-to-Point Protocol over ATM 1343PPPOE Point-to-Point Protocol over Ethernet 1344PPR processor programming reference 1345PPT powerpoint 1346PPT punched paper tape 1347PPU physics processing unit 1348PQC post-quantum cryptography 1349PRAM Parameter RAM 1350PRBS pseudorandom bit sequence 1351PRF pseudorandom function [family] 1352PRG pseudorandom generator 1353PRML partial response, maximum likelihood 1354PRN pseudorandom {noise,number} 1355PRNG pseudorandom number generator 1356PROM programmable read only memory 1357PRP pseudorandom permutation 1358PRU Programmable Realtime Unit 1359PS PostScript 1360PSD power spectral density 1361PSE page size extensions 1362PSK phase shift keying 1363PSK pre-shared key 1364PSTN public switched telephone network 1365PSW program status word 1366PTE page table entry 1367PTLA pseudo top level aggregator 1368PTP page table page 1369PTV perceived target value 1370PU processing unit 1371PUC personal unblocking code 1372PUN physical unit number 1373PV physical volume 1374PVC permanent virtual circuit 1375PVG physical volume group 1376PVI protected-mode virtual interrupt 1377PVRST Per-VLAN rapid spanning tree 1378PVST Per-VLAN Spanning Tree 1379PWM pulse width modulation 1380PXE preboot execution environment 1381QA quality assurance 1382QAM quadrature amplitude modulation 1383QAM quality assurance management 1384QBE query by example 1385QC quality control 1386QCIF quarter common intermediate format 1387QDI quasi delay insensitive 1388QOI quality of implementation 1389QOI quick order interface 1390QOS quality of service 1391QPU quantum processing unit 1392QUIC Quick UDP Internet Connections 1393QVL qualified vendor list 1394R/O read only 1395R/W read/write 1396RA receiver address 1397RA remote assistance 1398RA resource affinity 1399RA router advertisement 1400RAD rapid application development 1401RADIUS remote authentication dial-in user service 1402RAID redundant array of {independent,inexpensive} disks 1403RAII resource acquisition is initialization 1404RAM random access memory 1405RAS reliability, availability and serviceability 1406RAS remote access service 1407RAS restartable atomic sequence 1408RAS row address strobe 1409RAT register allocation table 1410RAT remote access trojan 1411RBF radial basis function 1412RBL real-time blackhole list 1413RBL reputation block list 1414RBNF routing backus-naur form 1415RBT red-black tree 1416RC release candidate 1417RC remote control 1418RC run commands 1419RCS Revision Control System 1420RCU read, copy, update 1421RDB Rigid Disk Block 1422RDBMS relational database management system 1423RDF Resource Description Framework 1424RDM relational data model 1425RDMA remote direct memory access 1426RDP remote desktop protocol 1427RDRAM Rambus DRAM 1428RE regular expression 1429REPL read, evaluate, print, loop 1430REST representational state transfer 1431RF radio frequency 1432RFB remote frame buffer 1433RFI radio frequency interference 1434RFO request for ownership 1435RFU reserved for future use 1436RGB red green blue 1437RGBA red green blue alpha 1438RGMII reduced gigabit media independent interface 1439RH read hit 1440RHEL Red Hat Enterprise Linux 1441RHL Red Hat Linux 1442RIB routing information base 1443RIFF Resource Interchange File Format 1444RIP Raster Image Processor 1445RIP Routing Information Protocol 1446RIPR releasable IP router (network) 1447RIR regional Internet registry 1448RISC reduced instruction set {computer,computing} 1449RKM ROM Kernel Manual 1450RLE run length encoding 1451RLL run length limited 1452RLO right-to-left override 1453RM read miss 1454RMCP Remote Management Control Protocol 1455RMI remote method invocation 1456RMO Relaxed Memory Ordering 1457RMPM rapid memory power management 1458RMS root mean square 1459RMW read, modify, write 1460RNG random number generator 1461ROA route origin authorization 1462ROM read only memory 1463ROP return-oriented programming 1464RPC remote procedure call 1465RPG Report Program Generator 1466RPKI resource PKI 1467RPL requested privilege level 1468RPM revolutions per minute 1469RPN reverse Polish notation 1470RPVST Rapid Per-VLAN Spanning Tree 1471RR random replacement 1472RR resource record 1473RR round robin 1474RRSIG resource record signature 1475RS relay station 1476RSA Rivest, Shamir, [and] Adleman 1477RSC Receive Segment Coalescing 1478RSIP Realm Specific IP 1479RSN Robust Secure Network 1480RSS Receive Side Scaling 1481RSS really simple syndication 1482RSS residual sum of squares 1483RSTP Rapid Spanning Tree Protocol 1484RT real time 1485RTC real time clock 1486RTC real time computing 1487RTF rich text format 1488RTL register transfer language 1489RTL resistor-transistor logic 1490RTL right to left 1491RTM restricted transactional memory (Intel) 1492RTOS real time operating system 1493RTP Real-time Transport Protocol 1494RTS request to send 1495RTT round trip time 1496RTTI run-time type information 1497RUP rational unified process 1498RW Rabin-Williams 1499RWM read-write memory 1500RX {receive,receiver} 1501S/PDIF Sony/Philips Digital Interface Format 1502SA security advisory 1503SA security association 1504SA source address 1505SA structured analysis 1506SAAS software as a service 1507SABRE Semi-automated business research environment 1508SACD super audio compact disc 1509SAD security association database 1510SAF-TE SCSI accessed fault-tolerant enclosure 1511SAGE Semi-automated ground environment 1512SAL {service,system} abstraction layer 1513SAM serial access memory 1514SAM sum addressed memory 1515SAML security assertion markup language 1516SAN storage area network 1517SAP service access point 1518SAPIC streamlined advanced programmable interrupt controller 1519SASD structured analysis, structured design 1520SASI Shugart Associates System Interface 1521SASL simple authentication [and] security layer 1522SATA serial advanced technology attachment 1523SAX simple API for XML 1524SB sound blaster 1525SBI supervisor binary interface 1526SBOM Software Bill of Materials 1527SBSA server base system architecture 1528SBU standard build unit 1529SC store conditional 1530SCA source code analyzer 1531SCADA supervisory control and data acquisition 1532SCC single chip cloud 1533SCC source code control 1534SCCP skinny call control protocol 1535SCCS Source Code Control System 1536SCI scalable coherent interface 1537SCI system control interrupt 1538SCIM smart common input method 1539SCM software configuration management 1540SCM source code management 1541SCM storage-class memory 1542SCO synchronous connection orientated 1543SCP secure copy 1544SCP system control processor 1545SCPI system control and power interface 1546SCSI Small Computer System Interface 1547SCT Signed Certificate Timestamp 1548SCTP Stream Control Transmission Protocol 1549SDDC software defined data center 1550SDEI software delegated exception interface 1551SDI symbol deinterleave 1552SDK software development kit 1553SDL Simple Declarative Language 1554SDL Simple Direct-media Layer 1555SDLC {software,system,systems} development life cycle 1556SDN software defined networking 1557SDP Session Description Protocol 1558SDR software defined radio 1559SDRAM synchronous dynamic random access memory 1560SDS software defined storage 1561SDT syntax-directed translation 1562SEA synchronous external abort 1563SED self-encrypting drive 1564SED stream editor 1565SEGV segmentation violation 1566SEMB serial ATA enclosure management bridge 1567SEO search engine optimization 1568SES SCSI enclosure services 1569SFC sequential function chart 1570SFI simple firmware interface 1571SFI software fault isolation 1572SFP small form-factor pluggable 1573SFTP SSH File Transfer Protocol 1574SFTP Serial File Transfer Protocol 1575SFTP Simple File Transfer Protocol 1576SGI Silicon Graphics, Inc 1577SGI software generated interrupt 1578SGMII serial gigabit media independent interface 1579SGPIO serial general purpose input/output 1580SGRAM synchronous graphics random access memory 1581SHA secure hash algorithm 1582SICP structure and interpretation of computer programs 1583SIDH supersingular isogeny Diffie-Hellman 1584SIEM security information and event management 1585SIF source input format 1586SIFS short inter-frame space 1587SIM subscriber identity module 1588SIMD single instruction, multiple data 1589SIMM single inline memory module 1590SIP Session Initiation Protocol 1591SIPR secret IP router (network) 1592SIR signal-to-interference ratio 1593SIR slow infrared 1594SIRT security incident response team 1595SISD single instruction, single data 1596SIV synthetic intialization vector 1597SLAAC stateless address auto-configuration 1598SLC single-level cell 1599SLDRAM synchronous-link dynamic random access memory 1600SLED single large expensive disk 1601SLI scalable link interface 1602SLI scan-line interleave 1603SLIC system license internal code 1604SLOC source lines of code 1605SLRU segmented LRU 1606SMA smart memory access 1607SMAF system management action field 1608SMAP Simple Mail Access Protocol 1609SMAP supervisor mode access prevention 1610SMART self-monitoring analysis and reporting technology 1611SMB Server Message Block 1612SMB system management bus 1613SMBIOS System Management BIOS 1614SMC system management controller 1615SMD storage module device 1616SMEP supervisor mode execution protection 1617SMF single mode fiber 1618SMI structure of management information 1619SMI system management interrupt 1620SMM system management mode 1621SMP serial management protocol 1622SMP symmetric multiprocessing 1623SMR shingled magnetic recording 1624SMR state machine replication 1625SMT simultaneous multithreading 1626SMTP Simple Mail Transfer Protocol 1627SMU system management unit 1628SNA systems network architecture 1629SNAP Sub-Network Access Protocol 1630SNIA Storage Networking Industry Association 1631SNMP Simple Network Management Protocol 1632SNR signal-to-noise ratio 1633SOA service oriented architecture 1634SOAP Simple Object Access Protocol 1635SOC security operations center 1636SOC system on chip 1637SOF start of frame 1638SOH start of header 1639SOHO small office/home office 1640SOL serial over LAN 1641SOM system on module 1642SP service pack 1643SP stack pointer 1644SPA storage pool allocator 1645SPAN switched port analyzer 1646SPARC scalable processor architecture 1647SPARQL SPARQL Protocol and RDF Query Language 1648SPD security policy database 1649SPD serial presence detect 1650SPDIF Sony/Philips digital interface format 1651SPI serial peripheral interface 1652SPI stateful packet inspection 1653SPIR standard portable intermediate representation 1654SPL secondary program loader 1655SPL spinlock 1656SPL system interrupt priority level 1657SPMD single process, multiple data 1658SPR special purpose register 1659SPT sectors per track 1660SQA software quality assurance 1661SQCIF sub quarter common intermediate format 1662SQL Structured Query Language 1663SRAM static random access memory 1664SRC sample rate conversion 1665SRP SCSI RDMA protocol 1666SRR shaped round robin 1667SRTP Secure Real-time Transport Protocol 1668SS self-snoop 1669SS stack segment 1670SSA static single assignment 1671SSAP source service access point 1672SSB single-sideband modulation 1673SSB speculative store bypass 1674SSBB speculative store bypass barrier (Arm) 1675SSBD speculative store bypass disable (Intel) 1676SSC spread spectrum clock 1677SSD solid state drive 1678SSE streaming SIMD extensions 1679SSFDC solid state floppy disc card 1680SSH secure shell 1681SSI server side includes 1682SSID service set identifier 1683SSL secure sockets layer 1684SSP stack smashing protection 1685SSRF server-side request forgery 1686SSTP secure socket tunneling protocol 1687STC software thermal control 1688STD state transition diagram 1689STEK session ticket encryption key 1690STM software transactional memory 1691STOMP Streaming Text Oriented Messaging Protocol 1692STP Spanning Tree Protocol 1693STP shielded twisted pair 1694STRG spanning tree root guard 1695SUN Stanford University Network 1696SUS Single Unix Specification 1697SUT system under test 1698SVC switched virtual circuit 1699SVG scalable vector graphics 1700SVGA Super Video Graphics Array 1701SVI {switch,switched} virtual interface 1702SVM secure virtual machine 1703SVM support vector machine 1704SVR System V Release 1705SVS Separate Virtual Space 1706SWF Shockwave Flash 1707SWIG simplified wrapper [and] interface generator 1708SYR symbol timing recovery 1709TA test assertion 1710TA transmitter address 1711TAA transactional asynchronous abort (Intel) 1712TACACS terminal access controller access-control system 1713TAI international atomic time 1714TAO track at once 1715TAOCP The Art of Computer Programming 1716TAP Test Anything Protocol 1717TAS test and set 1718TB terabyte 1719TBNF transitional backus-naur form 1720TCB trace capture buffer 1721TCB trusted computing base 1722TCC thermal control circuit 1723TCL tool command language 1724TCP Transmission Control Protocol 1725TCQ tagged command queueing 1726TDC time [to] digital converter 1727TDD test-driven development 1728TDD time division duplex 1729TDM time division multiplexing 1730TDMA time division multiple access 1731TDOA time difference of arrival 1732TDP thermal design {point,power} 1733TDR time-domain reflectometry 1734TECO Text Editor and Corrector 1735TEE Trusted Execution Environment 1736TFT thin film transistor 1737TFTP Trivial File Transfer Protocol 1738TIAS try it and see 1739TIFF tagged image file format 1740TITS try it to see 1741TK temporal key 1742TKIP Temporal Key Integrity Protocol 1743TLA top level aggregator 1744TLB translation lookaside buffer 1745TLD top level domain 1746TLER time-limited error recovery 1747TLI transport layer interface 1748TLS thread local storage 1749TLS transport layer security 1750TLV type, length, value 1751TM Turing machine 1752TM thermal monitor 1753TMDS transition minimized differential signaling 1754TMG transmogrifier 1755TMO timeout 1756TOD time of day 1757TOE TCP offload engine 1758TOFU trust on first use 1759TOS terms of service 1760TOS trusted operating system 1761TOS type of service 1762TOTP time-based one time password 1763TP transaction processing 1764TPI tracks per inch 1765TPM transactions per minute 1766TPM trusted platform module 1767TPR task priority register 1768TPS transactions per second 1769TPS transmission parameters signaling 1770TR task register 1771TR token ring 1772TRL timing recovery loop 1773TRNG true random number generator 1774TS terminal services 1775TS time series 1776TS time stamp 1777TS transport stream 1778TSAN Thread Sanitizer 1779TSC time stamp counter 1780TSD time stamp disable 1781TSDB time series database 1782TSL test, set, lock 1783TSO TCP segmentation offload 1784TSO Total Store Ordering 1785TSO time sharing option 1786TSP Time-Stamp Protocol 1787TSP Tunnel Setup Protocol 1788TSP time synchronization protocol 1789TSP traveling salesman problem 1790TSS task state segment 1791TSV tab-separated values 1792TSX transaction synchronization extensions (Intel) 1793TTL time to live 1794TTL transistor-transistor logic 1795TTM translation table maps 1796TTY teletype 1797TU translation unit 1798TUI {terminal,text-based,textual} user interface 1799TX {transmit out,transmitter} 1800TXG transaction group 1801TZ time zone 1802UAC user {access,account} control 1803UAF use-after-free 1804UART universal asynchronous receiver/transmitter 1805UAT user acceptance testing 1806UB undefined behavior 1807UBSAN Undefined Behavior Sanitizer 1808UC uncacheable 1809UCS unified computing system 1810UCS uniform-cost search 1811UCS universal coded character set 1812UDI uniform driver interface 1813UDMA ultra DMA 1814UDO ultra density optical 1815UDP User Datagram Protocol 1816UDS Unix Domain Socket 1817UEFI unified extensible firmware interface 1818UFO UDP fragmentation offload 1819UFS Unix File System 1820UGA universal graphics adapter 1821UI unit interval 1822UI user interface 1823UICC universal integrated circuit card 1824UID unique identifier 1825UID user identifier 1826UL upload 1827ULA unique local address 1828UMA uniform memory access 1829UMA upper memory area 1830UMB upper memory block 1831UML unified modeling language 1832UMPC ultra-mobile PC 1833UPNP universal plug and play 1834UPS uninterruptible power supply 1835URI uniform resource identifier 1836URL uniform resource locator 1837URN uniform resource name 1838USART universal synchronous/asynchronous receiver/transmitter 1839USB universal serial bus 1840USWC uncacheable speculative write combining 1841UT unit test 1842UTC coordinated universal time 1843UTF unicode transformation formats 1844UTP unshielded twisted pair 1845UTS UNIX time-sharing 1846UUCP Unix-to-Unix Copy Protocol 1847UUID universally unique identifier 1848UUOC useless use of cat 1849UUT unit under test 1850UX user experience 1851VA vertical alignment 1852VA virtual address 1853VA volt-ampere 1854VAX virtual address extension 1855VB Visual Basic 1856VBR volume boot record 1857VCA variable-gain amplifier 1858VCC common collector voltage 1859VCCP virtual chassis control protocol 1860VCF voltage-controlled filter 1861VCM virtual channel memory 1862VCO voltage-controlled oscillator 1863VCP virtual chassis port 1864VCS version control system 1865VDP vulnerability disclosure policy 1866VDPAU Video Decode and Presentation API for Unix 1867VES virtual execution system 1868VESA Video Electronics Standards Association 1869VFO variable-frequency oscillator 1870VFS virtual file system 1871VG volume group 1872VGA Video Graphics Array 1873VHD virtual hard disk 1874VHDCI very high density cable interconnect 1875VID {VLAN,voltage level} identifier 1876VIM Vi IMproved 1877VIPT virtually indexed, physically tagged 1878VIVT virtually indexed, virtually tagged 1879VLAN virtual local area network 1880VLD variable-length decoding 1881VLIW very long instruction word 1882VLSI very large scale integration 1883VLSM variable length subnet mask 1884VM virtual {machine,memory} 1885VME virtual mode extension 1886VMX vector multimedia extensions 1887VMX virtual machine extensions 1888VNC virtual network computing 1889VNI virtual network identifier 1890VOD video on demand 1891VPD vital product data 1892VPN virtual private network 1893VPWS virtual private wire service 1894VR virtual reality 1895VRAM video random access memory 1896VRF virtual routing and forwarding 1897VRM voltage regulator module 1898VROC Virtual RAID On CPU 1899VRRP Virtual Router Redundancy Protocol 1900VSTP VLAN Spanning Tree Protocol 1901VTEP VXLAN tunnel endpoint 1902VTP VLAN Trunking Protocol 1903VXFS Veritas file system 1904VXLAN virtual extensible LAN 1905VXVM Veritas volume manager 1906W watt 1907W3C World Wide Web Consortium 1908WAFL write anywhere file layout 1909WAMP Web Application Messaging Protocol 1910WAN wide area network 1911WAP Wireless Application Protocol 1912WAP wireless access point 1913WDDM Windows Display Driver Model 1914WDM Wavelength Division Multiplexing 1915WDM Windows Driver Model 1916WDT watchdog timer 1917WEP Wired Equivalent Privacy 1918WFI wait for interrupt 1919WFQ weighted fair queuing 1920WH write hit 1921WHEA Windows hardware error architecture 1922WIFI wireless fidelity 1923WLAN wireless local area network 1924WM write miss 1925WMF Windows meta file 1926WMI Windows Management Instrumentation 1927WOL Wake-on-LAN 1928WOM Wake-on-Modem 1929WOR Wake-on-Ring 1930WORM write once read many 1931WP WordPerfect 1932WP word processor 1933WP write protect 1934WPA Wi-Fi Protected Access 1935WPA2 Wi-Fi Protected Access II 1936WPAD web proxy auto-discovery protocol 1937WPS Wi-Fi Protected Setup 1938WRAM window random access memory 1939WS web services 1940WTC write through caching 1941WTD weighted tail drop 1942WWAN wireless wide area network 1943WWW world wide web 1944WYSIAYG what you see is all you get 1945WYSIWYG what you see is what you get 1946XBAR crossbar 1947XDMCP X Display Manager control protocol 1948XER XML encoding rules 1949XGA Extended Graphics Array 1950XHR XMLHttpRequest 1951XIP execute in place 1952XML Extensible Markup Language 1953XMSS eXtended Merkle Signature Scheme 1954XNA XNA's not acronymed 1955XNS Xerox network systems 1956XOF eXtendable-Output Function 1957XOR exclusive or 1958XP extreme programming 1959XSI X/Open System Interface 1960XSL extensible stylesheet language 1961XSLT extensible stylesheet language transformations 1962XSS cross site scripting 1963XT extended technology 1964XTACACS extended terminal access controller access-control system 1965XTI X/Open transport interface 1966XUL XML user interface language 1967YACC yet another compiler compiler 1968YAML YAML ain't markup language 1969YANG yet another next generation 1970YAWPFAPR you are welcome; please file a problem report 1971YP Yellow Pages 1972YTD year to date 1973ZAP ZFS attribute processor 1974ZBR zone bit recording 1975ZFOD zero-filled on demand 1976ZFS zettabyte file system 1977ZIF zero insertion force 1978ZIFS zero insertion force socket 1979ZIL ZFS intent log 1980ZMA zone multicast address 1981ZOI zero one infinity 1982ZOI zone of influence 1983ZPL ZFS Posix layer 1984ZSK zone signing key 1985ZVOL ZFS Volume 1986