acronyms.comp revision 1.401
1$NetBSD: acronyms.comp,v 1.401 2025/02/26 19:32:57 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APEI ACPI platform error interface 72APFS Apple file system 73API application programming interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APT advanced persistent threat 79APU accelerated processing unit 80AQM active queue management 81ARAT always running APIC timer 82ARC Advanced RISC Computing 83ARC adaptive replacement cache 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR Apple software restore 108ASR address space register 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMIC bus master interface controller 163BMP basic multilingual plane 164BMP bitmap image file 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTB branch target buffer 201BTB board-to-board 202BTC bit test [and] complement 203BTM bus transport mechanism 204BTR bit test [and] reset 205BTS bit test [and] set 206BTS bug tracking system 207BUAG big ugly ASCII graphic 208BW bandwidth 209BWM block-write mode 210CA certificate authority 211CAC cryptographic access control 212CACLS change access control lists 213CAD computer-aided design 214CAM computer assisted manufacturing 215CAM conditional access module 216CAM content addressable memory 217CAN controller area network 218CARP Common Address Redundancy Protocol 219CAS column address strobe 220CAS compare and swap 221CAS computer algebra system 222CASE computer aided software engineering 223CAU control access unit 224CAV constant angular velocity 225CBC cipher block chaining 226CBR constant bit rate 227CC carbon copy 228CCC Chaos Computer Club 229CCD charge coupled device 230CCI co-channel interferer 231CCNUMA cache-coherent non-uniform memory access 232CCTL command completion time limit 233CD cache disable 234CD compact disc 235CDDA compact disc digital audio 236CDL compiler description language 237CDMA code division multiple access 238CDN content delivery network 239CDP Cisco Discovery Protocol 240CDRAM cache dynamic random access memory 241CE customer edge 242CER canonical encoding rules 243CERT computer emergency response team 244CET control flow enforcement technology 245CF compact flash 246CFB cipher feedback 247CFG context-free grammar 248CFG control-flow graph 249CFI control-flow integrity 250CG control gate 251CGA Color Graphics Adapter 252CGI common gateway interface 253CGN Carrier-Grade NAT 254CHAP Challenge-Handshake Authentication Protocol 255CHFS chip file system 256CHS cylinder/head/sector 257CI continuous integration 258CI {common,component} interface 259CIA confidentiality, integrity, availability 260CIDR Classless Inter-Domain Routing 261CIF common intermediate format 262CIFS Common Internet File System 263CIL common intermediate language 264CIR carrier-to-interference ratio 265CIS contact image sensor 266CISC complex instruction set {computer,computing} 267CJK Chinese, Japanese, [and] Korean 268CLF common log format 269CLI command line interface 270CLI common language infrastructure 271CLR common language runtime 272CLS common language specification 273CLTT closed loop thermal throttling 274CLUT color look-up table 275CLV constant linear velocity 276CM configuration management 277CMA concert multithread architecture 278CMC certificate management over CMS 279CMC chassis management controller 280CMC corrected machine check 281CMI control {management,method} interface 282CMOS complementary metal-oxide-semiconductor 283CMP chip multi-processing 284CMS content management system 285CMS cryptographic message syntax 286CMS {configuration,content,course} management system 287CMYK cyan magenta yellow black 288CN {common,canonical} name 289CNA CVE Numbering Authority 290CNC computer numerical control 291CNR carrier-to-noise ratio 292COA change of authority 293COF current operating frequency 294COFDM coded orthogonal frequency division multiplexing 295COFF common object file format 296COM component object model 297COM computer on module 298COMA cache-only memory architecture 299CORBA common object request broker architecture 300COS class of service 301COW copy-on-write 302CP continuous pilot 303CPA chosen-plaintext attack 304CPB core performance boost 305CPC central processor complex 306CPC cpu performance counters 307CPE common phase error 308CPE common platform enumeration 309CPER common platform error record 310CPG clock pulse generator 311CPI cycles per instruction 312CPL current privilege level 313CPLD complex programmable logic device 314CPP C preprocessor 315CPS characters per second 316CPS continuation-passing style 317CPT command pass through 318CPU central processing unit 319CR carriage return 320CRC cyclic redundancy check 321CRDT conflict-free replicated data type 322CRL carrier recovery loop 323CRLF carriage return line feed 324CRQC cryptanalytically relevant quantum computer 325CRT cathode ray tube 326CRTP curiously recurring template pattern 327CRUD create, read, update, and delete 328CS cable select 329CS chip select 330CS code segment 331CS computer science 332CSDL {common,conceptual} schema definition language 333CSI channel state information 334CSI common system interface 335CSIRT computer security incident response team 336CSMA carrier sense multiple access 337CSMA/CA carrier sense multiple access with collision avoidance 338CSMA/CD carrier sense multiple access with collision detection 339CSP communicating sequential processes 340CSP constrain satisfaction problems 341CSP content security policy 342CSP cryptographic service provider 343CSPM cloud security posture management 344CSR control [and] status registers 345CSRF cross-site request forgery 346CSRG Computer Systems Research Group 347CSS cascading style sheets 348CST common spanning tree 349CSU C start up 350CSV comma-separated values 351CTF compact c type format 352CTM close to metal 353CTR counter [mode] 354CTS clear to send 355CTS common type system 356CUA common user access 357CUT coordinated universal time 358CV control voltage 359CVE common vulnerabilities and exposures 360CVS Concurrent Versions System 361CVSS Common Vulnerability Scoring System 362DA destination address 363DAA distributed application architecture 364DAAP digital audio access protocol 365DAB digital audio broadcasting 366DAC digital [to] analog converter 367DAC discretionary access control 368DAD duplicate address detection 369DAE deterministic authenticated encryption 370DANE DNS-based Authentication of Named Entities 371DAO disk at once 372DAP Directory Access Protocol 373DAT digital audio tape 374DAT dynamic acceleration technology 375DB database 376DBA database administrator 377DBA dynamic bandwidth allocation 378DBB data bus buffer 379DBC design by contract 380DBL dynamic buffer limiting 381DBMS database management system 382DBS database server 383DC data center 384DC direct current 385DCC Direct Client-to-Client 386DCC direct cable connect 387DCD data carrier detect 388DCE data control equipment 389DCE distributed computing environment 390DCIM data center infrastructure management 391DCIM digital camera images 392DCL Digital Command Language 393DCOM distributed component object model 394DCOP Desktop COmmunication Protocol 395DCS data collection systems 396DCT discrete cosine transform 397DCU data cache unit 398DDC display data channel 399DDE dynamic data exchange 400DDI device drivers interface 401DDK device driver kit 402DDL data description language 403DDR double data rate 404DDS direct digital sound 405DDWG Digital Display Working Group 406DE debugging extensions 407DE desktop environment 408DEA data encryption algorithm 409DEC Digital Equipment Corporation 410DEK data encryption key 411DEP data execution prevention 412DER distinguished encoding rules 413DES Data Encryption Standard 414DF don't fragment 415DFA deterministic finite automaton 416DFC data flow control 417DFS depth first search 418DFS distributed file system 419DFSAN Data Flow Sanitizer 420DFT diagnostic function test 421DFT discrete Fourier transform 422DFZ default-free zone 423DGEMM double precision general matrix multiply 424DGL data generation language 425DH Diffie-Hellman 426DHCP Dynamic Host Configuration Protocol 427DIA dedicated Internet access 428DIB device independent bitmap 429DIFS distributed inter-frame space 430DIMM dual inline memory module 431DIRT design in real time 432DKI driver/kernel interface 433DL diode logic 434DL discrete logarithm 435DL download 436DLCI data link connection identifier 437DLE data link escape 438DLL dynamic link library 439DLNA digital living network alliance 440DLP discrete logarithm problem 441DMA direct memory access 442DMB data memory barrier (Arm) 443DMI desktop management interface 444DMS document management system 445DMT discrete multitone modulation 446DMU data management layer 447DNARD Digital network appliance reference design 448DND drag and drop 449DNLC directory name lookup cache 450DNS Domain Name System 451DNSBL Domain Name System Block List 452DNSSEC DNS Security Extensions 453DOE distributed object environment 454DOF data over fibre 455DOH DNS over HTTPS 456DOM document object model 457DOQ DNS over QUIC 458DOS denial of service 459DOS disk operating system 460DOT DNS over TLS 461DP DisplayPort 462DPAA data path acceleration architecture 463DPC deferred procedure call 464DPCM differential pulse code modulation 465DPD dead peer detection 466DPDK data plane development kit 467DPI deep packet inspection 468DPI dots per inch 469DPL descriptor privilege level 470DPS Display PostScript 471DPST display power savings technology 472DRAAS disaster recovery as a service 473DRAM dynamic random access memory 474DRBG deterministic random bit generator 475DRI direct rendering infrastructure 476DRM digital rights management 477DRM direct rendering manager 478DRN Discovery of Network-designated Resolvers 479DRRS display refresh rate switching 480DS debug store 481DS differentiated services 482DS9000 DeathStation 9000 483DS9K DeathStation 9000 484DSA digital signature algorithm 485DSAP destination service access point 486DSB data synchronization barrier (Arm) 487DSB double-sideband modulation 488DSCP differentiated services code point 489DSDT differentiated system descriptor table 490DSF device special file 491DSL dataset and snapshot layer 492DSL digital subscriber line 493DSL domain specific language 494DSLAM digital subscriber line access multiplexer 495DSN delivery status notification 496DSO dynamic shared object 497DSP digital signal processor 498DSSS direct sequence spread spectrum 499DTB device tree blob 500DTC device tree compiler 501DTD document type definition 502DTE data terminal equipment 503DTE dumb terminal emulator 504DTL diode-transistor logic 505DTLS datagram transport layer security 506DTS device tree source 507DTS digital thermal sensor 508DUT device under test 509DVB digital video broadcasting 510DVCS distributed version control system 511DVD digital versatile disc 512DVFS dynamic voltage and frequency scaling 513DVI Digital Visual Interface 514DVI device independent 515DVR digital video recorder 516DWARF Debugging With Attributed Record Formats 517E-XER extended XML encoding rules 518EABI embedded-application binary interface 519EAI Email Address Internationalization 520EAI Enterprise Application Integration 521EAP Extensible Authentication Protocol 522EAPOL EAP over Lan 523EAV entity-attribute-value model 524EAV ethernet audio/video bridging 525EBCDIC Extended Binary Coded Decimal Interchange Code 526EBDA Extended BIOS Data Area 527EBNF extended backus-naur form 528EBR extended boot record 529EC elliptic curve 530ECC elliptic curve cryptography 531ECC error correction code 532ECDH elliptic curve Diffie-Hellman 533ECDL elliptic curve discrete logarithm 534ECDLP elliptic curve discrete logarithm problem 535ECDSA elliptic curve digital signature algorithm 536EDDSA Edwards-curve digital signature algorithm 537ECL emitter-coupled logic 538ECN explicit congestion notification 539ECP enhanced capability port 540ECS enhanced chip set 541ECS extended configuration space 542EDAC error detection and correction 543EDAT enhanced dynamic acceleration technology 544EDGE explicit data graph execution 545EDID extended display identification data 546EDO extended data out 547EDS electronical data sheet 548EDSAC electronic delay storage automatic calculator 549EDVAC electronic discrete variable automatic computer 550EEE embrace, extend, extinguish 551EEE energy efficient ethernet 552EEPROM electrically erasable programmable read only memory 553EFI extensible firmware interface 554EFL emitter follower logic 555EFM eight to fourteen modulation 556EFS extent file system 557EGA Enhanced Graphics Adapter 558EGP exterior gateway protocol 559EH extension header 560EIDE enhanced IDE 561EINJ error injection table 562EISA extended industry standard architecture 563ELF executable and linking format 564ELS entry level system 565EMACS Editor MACroS 566EMI electro-magnetic interference 567EMP electro-magnetic pulse 568EMR electro-magnetic radiation 569ENIAC electronic numerical integrator and computer 570EOF end of file 571EOI end of interrupt 572EOIS end of interactive support 573EOL end of life 574EOL end of line 575EOT end of transmission 576EPIC explicitly parallel instruction computing 577EPP enhanced parallel port 578EPP extensible provisioning protocol (RFC5730) 579EPRML extended partial response, maximum likelihood 580EPROM erasable programmable read only memory 581EPSS Exploit Prediction Scoring System 582EPT extended page tables 583ERC error recovery control 584ERD emergency recovery disk 585ERD entity relationship diagram 586ERE extended regular expression 587ERST error record serialization table 588ESAN Efficiency Sanitizer 589ESB enterprise service bus 590ESDI enhanced small disk interface 591ESDRAM enhanced synchronous dynamic random access memory 592ESI enclosure services interface 593ESS electronic switching system 594ESS extended service set 595ESSID extended service set identifier 596EST enhanced speedstep 597ETL extract, transform, load 598EU execution unit 599EULA end user license agreement 600EdDSA Edwards curve digital signature algorithm 601FAT file allocation table 602FBRAM frame buffer random access memory 603FCIF full common intermediate format 604FCL fiber channel loop 605FCS frame check sequence 606FDC floppy disk controller 607FDD floppy disk drive 608FDDI fiber distributed data interface 609FDE full disk encryption 610FDT flattened device tree 611FEA finite element analysis 612FEC forward error correction 613FET field-effect transistor 614FF finite field 615FF form feed 616FFDH finite-field Diffie-Hellman 617FFH functional fixed hardware 618FFI foreign function interface 619FFM focus follows mouse 620FFS Fast File System 621FFS find first set 622FFT fast Fourier transform 623FG floating gate 624FHRP first hop redundancy protocol 625FHSS frequency hop spread spectrum 626FID frequency identifier 627FIFO first in, first out 628FILO first in, last out 629FIPS Federal Information Processing Standards 630FIR fast infrared 631FLOPS floating [point] operations per second 632FLOSS free/libre/open source software 633FM frequency modulation 634FMR false match rate 635FOSS free/open source software 636FPGA field programmable gate array 637FPM fast page mode 638FPR floating point register 639FPU floating point unit 640FQDN fully qualified domain name 641FRR false rejection rate 642FRR Free Range Routing 643FRU field replaceable unit 644FS file system 645FSB front side bus 646FSCK file system check 647FSF Free Software Foundation 648FSK frequency shift keying 649FSM finite-state machine 650FTA fault tree analysis 651FTL flash translation layer 652FTP File Transfer Protocol 653FTPS File Transfer Protocol Secure 654FTTH fiber to the home 655FUS fast user switching 656FWH firmware hub 657FWS folding white space 658GAL generic array logic 659GARP generic attribute registration protocol 660GAS generic address structure 661GC garbage collector 662GCC GNU Compiler Collection 663GCM Galois counter mode 664GCR group-coded recording 665GDI Graphics Device Interface 666GDT global descriptor table 667GDT (block) group descriptor table 668GECOS general comprehensive operating supervisor 669GEM graphics environment manager 670GEM graphics execution manager 671GEMM general matrix multiply 672GENA general event notification architecture 673GHC Glasgow Haskell compiler 674GHES generic hardware error source 675GIC generic interrupt controller 676GID group identifier 677GIF graphics interchange format 678GLBP gateway load balancing protocol 679GMCH graphics and memory controller hub 680GNU GNU's Not Unix 681GOP graphics output protocol 682GOT global offset table 683GPE general purpose event 684GPF general protection fault 685GPG GNU Privacy Guard 686GPL [GNU] General Public License 687GPR general purpose register 688GPS generalized processor sharing 689GPT GUID partition table 690GPU graphics processing unit 691GR golden ratio 692GRE generic routing encapsulation 693GRO generic receive offload 694GSI global system interrupt 695GSO generic send offload 696GUA global unicast address 697GUI graphical user interface 698GUID globally unique identifier 699GUS Gravis UltraSound 700GVFS git virtual file system 701HA high availability 702HAL hardware abstraction layer 703HAT hashed array tree 704HATEOAS hypermedia as the engine of application state 705HBA host bus adapter 706HBS hash-based signature 707HCC Home Cable Computer 708HCCA Home Cable Computer Adaptor 709HCF halt and catch fire 710HCI host controller interface 711HCI human-computer interaction 712HCL hardware compatibility list 713HDCP High-bandwidth Digital Content Protection 714HDD hard disk drive 715HDL hardware description language 716HDMI High-Definition Multimedia Interface 717HDTV high-definition television 718HECI host embedded controller interface 719HEST hardware error source table 720HEVC high efficiency video coding 721HF high frequency 722HFM highest frequency mode 723HFS hierarchical file system 724HID human interface device 725HKDF HMAC-based key derivation function 726HKP HTTP Keyserver Protocol 727HLE hardware lock elision (Intel) 728HLL high-level language 729HMA high memory area 730HMI human-machine interface 731HNDL harvest now, decrypt later 732HOOD hierarchical object oriented design 733HOTP HMAC-based one time password 734HP Hewlett-Packard 735HPC high performance computing 736HPD hot plug detection 737HPET high precision event timer 738HPKE hybrid public key encryption 739HSM hardware security module 740HSM hierarchical storage management 741HSRP hot standby router protocol 742HT hyper-threading 743HTC hardware thermal control 744HTCC high temperature co-fired ceramic 745HTML HyperText Markup Language 746HTT hyper-threading technology 747HTTP Hypertext Transfer Protocol 748HTTPS Hypertext Transfer Protocol Secure 749HVDS High-Voltage Differential Signaling 750HVM hardware virtual machine 751HWASAN Hardware-assisted Address Sanitizer 752HZ Hertz 753I2O intelligent input/output 754IA information assurance 755IAAS infrastructure as a service 756IAB Internet Architecture Board 757IANA Internet Assigned Numbers Authority 758IBC iterated block cipher 759IBM International Business Machines 760IBPI international blinking pattern interpretation 761IBS instruction based sampling 762IBSS independent basic service set 763IBT indirect branch tracking 764IC integrated circuit 765ICA independent computer architecture 766ICACLS integrity control access control lists 767ICB Internet Citizen's Band 768ICE in-circuit emulator 769ICE internal compiler error 770ICH I/O controller hub 771ICMP Internet Control Message Protocol 772ICT information and communications technology 773ICW initialization command word 774IDA Intel dynamic acceleration 775IDCMP Intuition direct communication message port 776IDCT inverse discrete cosine transform 777IDE integrated development environment 778IDE integrated drive electronics 779IDPS intrusion detection [and] prevention system 780IDRP inter-domain routing protocol 781IDS intrusion detection system 782IDT interrupt descriptor table 783IE Internet Explorer 784IEC International Electrotechnical Commission 785IEEE Institute of Electrical and Electronics Engineers 786IESG Internet Engineering Steering Group 787IETF Internet Engineering Task Force 788IF intermediate frequency 789IFCM isochronous flow control mode 790IFF Interchange File Format 791IFS internal field separator 792IGD Internet gateway device 793IGMP Internet Group Management Protocol 794IGP interior gateway protocol 795IHV independent hardware vendor 796IKE Internet key exchange 797IKM input keying material 798ILM internal loopback mode 799ILOM integrated lights-out management 800ILP instruction level parallelism 801IM instant messaging 802IMAP Internet Message Access Protocol 803IMC integrated memory controller 804IMCR interrupt mode configuration register 805IME input method editor 806IMR interrupt mask register 807IMS information management system 808IMSI international mobile subscriber identity 809INCITS InterNational Committee for Information Technology Standards 810INODE index node 811IO input/output 812IOCTL input/output control 813IOM input/output managers 814IOMMU input/output memory management unit 815IOT Internet of Things 816IP Internet Protocol 817IP intellectual property 818IPC instructions per cycle 819IPC interprocess communication 820IPCF interprocess communication facility 821IPE integrated programming environment 822IPI intelligent peripheral interface 823IPI interprocessor interrupt 824IPL Initial Program Load 825IPL Interrupt Priority Level 826IPMB Intelligent Platform Management Bus 827IPMI Intelligent Platform Management Interface 828IPNG Internet Protocol, Next Generation 829IPS in-plane switching 830IPS intrusion prevention system 831IPSEC Internet Protocol Security 832IR intermediate representation 833IRC Internet Relay Chat 834IRDA infrared data association 835IRDP ICMP Router Discovery Protocol 836IRQ interrupt request 837IRQL interrupt request level 838IRR interrupt request register 839IRTF Internet Research Task Force 840IS information system 841ISA industry standard architecture 842ISA instruction set architecture 843ISB instruction synchronization barrier (Arm) 844ISDN integrated services digital network 845ISE instant secure erase 846ISI inter-symbol interference 847ISL initial system load 848ISM industrial, scientific, [and] medical 849ISMS information system management system 850ISN initial serial number 851ISO International Standards Organization 852ISOC Internet Society 853ISP Internet service provider 854ISR in-service register 855ISR interrupt service routine 856IST internal spanning tree 857IST interrupt stack table 858ISV independent software vendor 859IT information technology 860ITB Intel Turbo Boost 861ITIL information technology infrastructure library 862ITP in-target probe 863ITSM IT service management 864IV initialization vector 865IVT interrupt vector table 866JBOD just a bunch of disks 867JCL Job Control Language 868JFET junction [gate] field-effect transistor 869JIT just in time 870JPEG Joint Photographic Experts Group 871JRE Java Runtime Environment 872JSON JavaScript Object Notation 873JTAG joint test action group 874KASAN Kernel Address Sanitizer 875KASLR kernel address space layout randomization 876KB keyboard 877KB kilobyte 878KBD keyboard 879KBD kilobaud 880KCS keyboard controller style 881KDF key derivation function 882KEK key encryption key 883KEM key encapsulation mechanism 884KLOC thousand lines of code 885KMS kernel-mode setting 886KPI kernel programming interface 887KVA kernel virtual address 888KVM kernel virtual machine 889KVM kernel virtual memory 890KVM keyboard, video, [and] mouse 891L2CAP link layer control and adaptation protocol 892LAG link aggregation group 893LAMP Linux Apache MySQL {Perl,PHP,Python} 894LAN local area network 895LAPIC local advanced programmable interrupt controller 896LAR load access rights 897LBA logical block addressing 898LBNF labeled backus-naur form 899LBS location-based service 900LCD liquid crystal display 901LCP link control protocol 902LDA local delivery agent 903LDAP Lightweight Directory Access Protocol 904LDR light-dependent resistor 905LDT local descriptor table 906LE logical extent 907LED light emitting diode 908LELL low energy link layer 909LER label edge router 910LF line feed 911LF low frequency 912LFM lowest frequency mode 913LFN long file names 914LFO low-frequency oscillation 915LFS log-structured file system 916LFU least frequently used 917LHP loop heat pipe 918LIF logical interchange format 919LIFO last in, first out 920LILO LInux LOader 921LILO last in, last out 922LINT local interrupt 923LIR local Internet registry 924LISP LISt Processor 925LISP Locator/ID Separation Protocol 926LKM {Linux,loadable} kernel module 927LKML Linux kernel mailing list 928LL load linked 929LL/SC load linked/store conditional 930LLC logical link control 931LLD low-level design 932LLDD low-level design document 933LLDP link layer discovery protocol 934LLF low level format 935LLMNR link-local multicast name resolution 936LLVM Low Level Virtual Machine 937LM long mode 938LMCE local machine check exception 939LMI local management interface 940LMM link management mode 941LMP link management protocol 942LMS Leighton-Micali Signature 943LNO loop nest optimization 944LOC lines of code 945LOM lights-out management 946LPC low pin count 947LPE Linux performance events 948LPS local positioning system 949LRC longitudinal redundancy check 950LRM left-to-right mark 951LRO Large Receive Offload 952LRO left-to-right override 953LRU least recently used 954LS link state 955LSAN Leak Sanitizer 956LSB Linux standards base 957LSB least significant {bit,byte} 958LSI large scale integration 959LSL load segment limit 960LSM log structured merge 961LSN Large Scale NAT 962LSN log sequence number 963LSO large send offload 964LSR label switch router 965LTCC low temperature co-fired ceramic 966LTO linear tape-open 967LTO link time optimization 968LTR left to right 969LTR letter(-sized paper) 970LTR load task register 971LTS long term support 972LUA Lua Uppercase Accident 973LUN logical unit number 974LV logical volume 975LVDS Low-Voltage Differential Signaling 976LVM logical volume management 977LVT local vector table 978LWP light-weight process 979LZSS Lempel Ziv Storer Szymanski 980LZW Lempel Ziv Welch 981MAB MAC authentication bypass 982MAC mandatory access control 983MAC message authentication {check,code} 984MAC {media,medium} access control 985MADT multiple APIC descriptor table 986MAMR microwave-assisted magnetic recording 987MB megabyte 988MBA multi-boot agent 989MBR master boot record 990MBS megabits per second 991MC memory controller 992MCA MicroChannel architecture 993MCA machine check architecture 994MCC multiversion concurrency control 995MCE machine check exception 996MCGA Multi-Color Graphics Array 997MCH memory controller hub 998MCLAG multi-chassis link aggregation group 999MCM multi-chip module 1000MCQ memory controlled queue 1001MD MiniDisc 1002MD machine-dependent 1003MD-SAL model-driven service abstraction layer 1004MDA Monochrome Display Adapter 1005MDA mail delivery agent 1006MDC Management Data Clock 1007MDI Medium Dependent Interface 1008MDI-X Medium Dependent Interface Crossover 1009MDIO Management Data Input/Output 1010MDMX MIPS Digital Media eXtension 1011MDRAM multibank dynamic random access memory 1012MDS microarchitectural data sampling 1013MESI modified, exclusive, shared, invalid 1014MFC Microsoft Foundation Classes 1015MFC merge from current 1016MFM modified frequency modulation 1017MFU most frequently used 1018MGCP media gateway control protocol 1019MHU message handling unit 1020MI machine interface 1021MI machine-independent 1022MIB management information base 1023MIC message integrity {check,code} 1024MID mobile Internet device 1025MIDI musical instrument digital interface 1026MIF management information format 1027MII media independent interface 1028MIM man in the middle 1029MIMD multiple instruction, multiple data 1030MIME Multipurpose Internet Mail Extensions 1031MIMO multiple input multiple output 1032MIPS Microprocessor without Interlocked Pipeline Stages 1033MIPS million instructions per second 1034MISD multiple instruction, single data 1035MIT Massachusetts Institute of Technology 1036MITM man in the middle 1037ML machine language 1038ML machine learning 1039ML mailing list 1040ML markup language 1041ML maximum likelihood 1042ML-KEM module-lattice based key-encapsulation mechanism 1043MLAG multi-chassis link aggregation group 1044MLC multi-level cell 1045MLD multicast listener discovery 1046MLHP micro loop heat pipe 1047MLIR multi-level intermediate representation 1048MLO MMC loader 1049MMC multi-media card 1050MMF multi-mode fiber 1051MMIC monolithic microwave integrated circuit 1052MMIO memory mapped input/output 1053MMORPG massive multiplayer online role playing game 1054MMRP multiple MAC registration protocol 1055MMU memory management unit 1056MMX matrix math extension 1057MMX multimedia extension 1058MMX multiple math extension 1059MO magneto-optical 1060MOESI modified, owned, exclusive, shared, invalid 1061MOF maximum operating frequency 1062MOSFET metal-oxide-semiconductor field-effect transistor 1063MOSI modified, owned, shared, invalid 1064MP multi-platform 1065MP multiplayer 1066MP {multiprocessing,multiprocessor} 1067MPEG moving picture experts group 1068MPI message passing interface 1069MPLS Multiprotocol Label Switching 1070MPP massively parallel processor 1071MPS memory pool system 1072MPS multiprocessor specification 1073MQTT Message Queuing Telemetry Transport 1074MR modem ready 1075MRO method resolution order 1076MRP multiple registration protocol 1077MRU most recently used 1078MS Microsoft 1079MSAN Memory Sanitizer 1080MSB most significant {bit,byte} 1081MSC message sequence chart 1082MSE mean square error 1083MSF minutes seconds frames 1084MSI message signaled interrupt 1085MSI modified, shared, invalid 1086MSR {machine state,model-specific} register 1087MSS maximum segment size 1088MSTP Multiple Spanning Tree Protocol 1089MT machine translation 1090MTA mail transfer agent 1091MTBF mean time between failures 1092MTP media transfer protocol 1093MTRR memory type range register 1094MTTF mean time to failure 1095MTU maximum transmission unit 1096MUA mail user agent 1097MUD multi-user domain 1098MVCC multiversion concurrency control 1099MVR multicast VLAN registration 1100MVRP multiple VLAN registration protocol 1101MWE module width encoding 1102MX mail exchange 1103MZM Majorana zero mode 1104NACK negative acknowledgement 1105NAK negative acknowledgement 1106NAN neighbor awareness networking 1107NAN not a number 1108NAPT Network Address Port Translation 1109NAS network attached storage 1110NAT network address translation 1111NAV network allocation vector 1112NC numerical control 1113NC-SI network controller sideband interface 1114NCO numerically-controlled oscillator 1115NCP Network Control Protocol 1116NCQ native command queuing 1117NCSI network connectivity status indicator 1118ND neighbor discovery 1119NDFA nondeterministic finite automaton 1120NDIS network driver interface specification 1121NE numeric error 1122NEWS Network extensible Window System 1123NFA nondeterministic finite automaton 1124NFC near-field communication 1125NFCI no functional change intended 1126NFS network file system 1127NFV network function virtualization 1128NHACP NABU HCCA Application Communication Protocol 1129NIA next instruction address 1130NIC network information center 1131NIC network interface card 1132NIDS network intrusion detection system 1133NIKE Non-Interactive Key Exchange 1134NIP network interface protocol 1135NIPR non-classified IP router (network) 1136NIPS network intrusion prevention system 1137NIS network information service 1138NIST National Institute of Standards and Technology 1139NLS native language support 1140NMI non-maskable interrupt 1141NMR nonce-misuse resistance 1142NNTP Network News Transfer Protocol 1143NOC network operations center 1144NOP no operation 1145NOS network operating system 1146NP nondeterministic polynomial time 1147NRND not recommended for new designs 1148NRZ non-return to zero 1149NSA National Security Agency 1150NSA nation-state adversary 1151NSA no such agency 1152NTA negative trust anchor 1153NTM non-deterministic Turing machine 1154NTP Network Time Protocol 1155NUMA non-uniform memory access 1156NURBS non-uniform rational basis spline 1157NVD National Vulnerability Database 1158NVMM NetBSD Virtual Machine Monitor 1159NVMM non-volatile main memory 1160NVRAM non-volatile random access memory 1161NW not write-through 1162NX no execute 1163OAEP optimal asymmetric encryption padding 1164OAM operations, administration, and {management,maintenance} 1165OBO off by one 1166OBOE off by one error 1167OCL object constraint language 1168OCR optical character recognition 1169ODBC Open Database Connectivity 1170ODCM on-demand clock modulation 1171ODE offline device environment 1172ODI open data-link interface 1173ODM object data manager 1174ODMR on-demand mail relay 1175ODT on-die termination 1176OEM original equipment manufacturer 1177OFB output feedback 1178OFDM orthogonal frequency division multiplexing 1179OFET organic field-effect transistor 1180OLAP online analytical processing 1181OLE object linking and embedding 1182OLTP online transaction processing 1183ONCE on-{chip,circuit} emulation 1184ONFI open nand flash interface 1185OO OpenOffice 1186OO object oriented 1187OOB out of band 1188OOE out of order execution 1189OOM out of memory 1190OOO OpenOffice.org 1191OOP object oriented programming 1192OOPS object oriented programming systems 1193OOSE object oriented software engineering 1194OPM operations per minute 1195OPS operations per second 1196OQL Object Query Language 1197ORB object request broker 1198ORM object-relational mapping 1199OS operating system 1200OSD object-based storage device 1201OSD open source definition 1202OSF open software foundation 1203OSI Open Source Initiative 1204OSI open systems interconnection 1205OSPF open shortest path first 1206OSPM OS power management 1207OSS open sound system 1208OSS open source software 1209OSVW operating system visible workarounds 1210OTP one time password 1211OTP open telecom platform 1212OU organizational unit 1213OUI organizationally unique identifier 1214OWASP Open Web Application Security Project 1215OWL Web Ontology Language 1216P2P PCI to PCI 1217P2P peer to peer 1218PA phase accumulator 1219PA physical address 1220PAAS platform as a service 1221PAC phase-amplitude converter 1222PAE physical address extension 1223PAGP port aggregation protocol 1224PAL phase alternating line 1225PAL programmable array logic 1226PAM pluggable authentication modules 1227PAM pulse amplitude modulation 1228PAP password authentication protocol 1229PAT page attribute table 1230PAT port address translation 1231PATA parallel ATA 1232PAX portable archive exchange 1233PBE pending break encoding 1234PBE programming by example 1235PBKDF password-based key derivation function 1236PBR partition boot record 1237PBX private branch exchange 1238PC personal computer 1239PC program counter 1240PCB Protocol Control Block 1241PCB printed circuit board 1242PCB process control block 1243PCBC propagating cipher block chaining 1244PCC Portable C Compiler 1245PCD page-level cache disable 1246PCE path computation element 1247PCE performance-monitor counter enable 1248PCEP Path Computation Element Protocol 1249PCH platform controller hub 1250PCI peripheral component interconnect 1251PCM phase change memory 1252PCM pulse code modulation 1253PCMCIA Personal Computer Memory Card International Association 1254PCP Port Control Protocol 1255PD public domain 1256PDA personal digital assistant 1257PDA pushdown automaton 1258PDAG propositional directed acyclic graph 1259PDB power distribution board 1260PDF portable document format 1261PDM pulse-duration modulation 1262PDN pull-down network 1263PDP page {descriptor,directory} page 1264PDS product data sheet 1265PDU protocol data unit 1266PE portable executable 1267PE protection enable 1268PE provider edge 1269PEAP Protected EAP 1270PECI platform environment control interface 1271PED PIN Entry Device 1272PEP protocol extension protocol 1273PER packed encoding rules 1274PFS perfect forward secrecy 1275PGAS partitioned global address space 1276PGE page global enable 1277PGO profile guided optimization 1278PGP Pretty Good Privacy 1279PHB PCI host bridge 1280PHP PHP: Hypertext Preprocessor 1281PIC performance instrumentation counters 1282PIC position independent code 1283PIC programmable interrupt controller 1284PICNIC problem in chair, not in computer 1285PID process id 1286PIE position independent executable 1287PIL Priority Interrupt Level 1288PIM personal information manager 1289PIM platform-independent model 1290PIO programmed input/output 1291PIPT physically indexed, physically tagged 1292PIQ prefetch input queue 1293PIR private information retrieval 1294PIT programmable interrupt timer 1295PIV personal identity verification 1296PIX Private Internet eXchange 1297PKCS public-key cryptography standards 1298PKE public key encryption 1299PKI public key infrastructure 1300PLC programmable logic controller 1301PLD programmable logic device 1302PLL phase locked loop 1303PLRU pseudo LRU 1304PLT procedure linkage table 1305PLTM package level thermal management 1306PM power management 1307PM {phase,pulse} modulation 1308PMC performance monitoring counters 1309PME power management event 1310PMEG page map entry group 1311PMI performance monitoring infrastructure 1312PMI platform management interrupt 1313PMIC power management integrated circuit 1314PMIO port-mapped input/output 1315PMT photo-multiplier tube 1316PMU performance monitoring units 1317PMU power management unit 1318PNG portable network graphics 1319PNP plug and play 1320POE power over ethernet 1321POF probability of failure 1322POP Post Office Protocol 1323POP power on password 1324POR plan of record 1325POSIX Portable Operating System Interface [for Unix] 1326POST power on self test 1327POTS plain old telephone system 1328POWER Performance Optimization With Enhanced RISC 1329POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1330PP pair programming 1331PPB PCI [to] PCI bridge 1332PPC Power Performance Computing 1333PPC PowerPC 1334PPI pixels per inch 1335PPM pages per minute 1336PPP Point-to-Point Protocol 1337PPPOA Point-to-Point Protocol over ATM 1338PPPOE Point-to-Point Protocol over Ethernet 1339PPR processor programming reference 1340PPT powerpoint 1341PPT punched paper tape 1342PPU physics processing unit 1343PQC post-quantum cryptography 1344PRAM Parameter RAM 1345PRBS pseudorandom bit sequence 1346PRF pseudorandom function [family] 1347PRG pseudorandom generator 1348PRML partial response, maximum likelihood 1349PRN pseudorandom {noise,number} 1350PRNG pseudorandom number generator 1351PROM programmable read only memory 1352PRP pseudorandom permutation 1353PRU Programmable Realtime Unit 1354PS PostScript 1355PSD power spectral density 1356PSE page size extensions 1357PSK phase shift keying 1358PSK pre-shared key 1359PSTN public switched telephone network 1360PSW program status word 1361PTE page table entry 1362PTLA pseudo top level aggregator 1363PTP page table page 1364PTV perceived target value 1365PU processing unit 1366PUC personal unblocking code 1367PUN physical unit number 1368PV physical volume 1369PVC permanent virtual circuit 1370PVG physical volume group 1371PVI protected-mode virtual interrupt 1372PVRST Per-VLAN rapid spanning tree 1373PVST Per-VLAN Spanning Tree 1374PWM pulse width modulation 1375PXE preboot execution environment 1376QA quality assurance 1377QAM quadrature amplitude modulation 1378QAM quality assurance management 1379QBE query by example 1380QC quality control 1381QCIF quarter common intermediate format 1382QDI quasi delay insensitive 1383QOI quality of implementation 1384QOI quick order interface 1385QOS quality of service 1386QPU quantum processing unit 1387QUIC Quick UDP Internet Connections 1388QVL qualified vendor list 1389R/O read only 1390R/W read/write 1391RA receiver address 1392RA remote assistance 1393RA resource affinity 1394RA router advertisement 1395RAD rapid application development 1396RADIUS remote authentication dial-in user service 1397RAID redundant array of {independent,inexpensive} disks 1398RAII resource acquisition is initialization 1399RAM random access memory 1400RAS reliability, availability and serviceability 1401RAS remote access service 1402RAS restartable atomic sequence 1403RAS row address strobe 1404RAT register allocation table 1405RAT remote access trojan 1406RBF radial basis function 1407RBL real-time blackhole list 1408RBL reputation block list 1409RBNF routing backus-naur form 1410RBT red-black tree 1411RC release candidate 1412RC remote control 1413RC run commands 1414RCS Revision Control System 1415RCU read, copy, update 1416RDB Rigid Disk Block 1417RDBMS relational database management system 1418RDF Resource Description Framework 1419RDM relational data model 1420RDMA remote direct memory access 1421RDP remote desktop protocol 1422RDRAM Rambus DRAM 1423RE regular expression 1424REPL read, evaluate, print, loop 1425REST representational state transfer 1426RF radio frequency 1427RFB remote frame buffer 1428RFI radio frequency interference 1429RFO request for ownership 1430RFU reserved for future use 1431RGB red green blue 1432RGBA red green blue alpha 1433RGMII reduced gigabit media independent interface 1434RH read hit 1435RHEL Red Hat Enterprise Linux 1436RHL Red Hat Linux 1437RIB routing information base 1438RIFF Resource Interchange File Format 1439RIP Raster Image Processor 1440RIP Routing Information Protocol 1441RIPR releasable IP router (network) 1442RIR regional Internet registry 1443RISC reduced instruction set {computer,computing} 1444RKM ROM Kernel Manual 1445RLE run length encoding 1446RLL run length limited 1447RLO right-to-left override 1448RM read miss 1449RMCP Remote Management Control Protocol 1450RMI remote method invocation 1451RMO Relaxed Memory Ordering 1452RMPM rapid memory power management 1453RMS root mean square 1454RMW read, modify, write 1455RNG random number generator 1456ROA route origin authorization 1457ROM read only memory 1458ROP return-oriented programming 1459RPC remote procedure call 1460RPG Report Program Generator 1461RPKI resource PKI 1462RPL requested privilege level 1463RPM revolutions per minute 1464RPN reverse Polish notation 1465RPVST Rapid Per-VLAN Spanning Tree 1466RR random replacement 1467RR round robin 1468RS relay station 1469RSA Rivest, Shamir, [and] Adleman 1470RSC Receive Segment Coalescing 1471RSIP Realm Specific IP 1472RSN Robust Secure Network 1473RSS Receive Side Scaling 1474RSS really simple syndication 1475RSS residual sum of squares 1476RSTP Rapid Spanning Tree Protocol 1477RT real time 1478RTC real time clock 1479RTC real time computing 1480RTF rich text format 1481RTL register transfer language 1482RTL resistor-transistor logic 1483RTL right to left 1484RTM restricted transactional memory (Intel) 1485RTOS real time operating system 1486RTP Real-time Transport Protocol 1487RTS request to send 1488RTT round trip time 1489RTTI run-time type information 1490RUP rational unified process 1491RW Rabin-Williams 1492RWM read-write memory 1493RX {receive,receiver} 1494S/PDIF Sony/Philips Digital Interface Format 1495SA security advisory 1496SA security association 1497SA source address 1498SA structured analysis 1499SAAS software as a service 1500SABRE Semi-automated business research environment 1501SACD super audio compact disc 1502SAD security association database 1503SAF-TE SCSI accessed fault-tolerant enclosure 1504SAGE Semi-automated ground environment 1505SAL {service,system} abstraction layer 1506SAM serial access memory 1507SAM sum addressed memory 1508SAML security assertion markup language 1509SAN storage area network 1510SAP service access point 1511SAPIC streamlined advanced programmable interrupt controller 1512SASD structured analysis, structured design 1513SASI Shugart Associates System Interface 1514SASL simple authentication [and] security layer 1515SATA serial advanced technology attachment 1516SAX simple API for XML 1517SB sound blaster 1518SBI supervisor binary interface 1519SBOM Software Bill of Materials 1520SBSA server base system architecture 1521SBU standard build unit 1522SC store conditional 1523SCA source code analyzer 1524SCADA supervisory control and data acquisition 1525SCC single chip cloud 1526SCC source code control 1527SCCP skinny call control protocol 1528SCCS Source Code Control System 1529SCI scalable coherent interface 1530SCI system control interrupt 1531SCIM smart common input method 1532SCM software configuration management 1533SCM source code management 1534SCM storage-class memory 1535SCO synchronous connection orientated 1536SCP secure copy 1537SCP system control processor 1538SCPI system control and power interface 1539SCSI Small Computer System Interface 1540SCT Signed Certificate Timestamp 1541SCTP Stream Control Transmission Protocol 1542SDDC software defined data center 1543SDEI software delegated exception interface 1544SDI symbol deinterleave 1545SDK software development kit 1546SDL Simple Declarative Language 1547SDL Simple Direct-media Layer 1548SDLC {software,system,systems} development life cycle 1549SDN software defined networking 1550SDP Session Description Protocol 1551SDR software defined radio 1552SDRAM synchronous dynamic random access memory 1553SDS software defined storage 1554SDT syntax-directed translation 1555SEA synchronous external abort 1556SED self-encrypting drive 1557SED stream editor 1558SEGV segmentation violation 1559SEMB serial ATA enclosure management bridge 1560SEO search engine optimization 1561SES SCSI enclosure services 1562SFC sequential function chart 1563SFI simple firmware interface 1564SFI software fault isolation 1565SFP small form-factor pluggable 1566SFTP SSH File Transfer Protocol 1567SFTP Serial File Transfer Protocol 1568SFTP Simple File Transfer Protocol 1569SGI Silicon Graphics, Inc 1570SGI software generated interrupt 1571SGMII serial gigabit media independent interface 1572SGPIO serial general purpose input/output 1573SGRAM synchronous graphics random access memory 1574SHA secure hash algorithm 1575SICP structure and interpretation of computer programs 1576SIDH supersingular isogeny Diffie-Hellman 1577SIEM security information and event management 1578SIF source input format 1579SIFS short inter-frame space 1580SIM subscriber identity module 1581SIMD single instruction, multiple data 1582SIMM single inline memory module 1583SIP Session Initiation Protocol 1584SIPR secret IP router (network) 1585SIR signal-to-interference ratio 1586SIR slow infrared 1587SIRT security incident response team 1588SISD single instruction, single data 1589SIV synthetic intialization vector 1590SLAAC stateless address auto-configuration 1591SLC single-level cell 1592SLDRAM synchronous-link dynamic random access memory 1593SLED single large expensive disk 1594SLI scalable link interface 1595SLI scan-line interleave 1596SLIC system license internal code 1597SLOC source lines of code 1598SLRU segmented LRU 1599SMA smart memory access 1600SMAF system management action field 1601SMAP Simple Mail Access Protocol 1602SMAP supervisor mode access prevention 1603SMART self-monitoring analysis and reporting technology 1604SMB Server Message Block 1605SMB system management bus 1606SMBIOS System Management BIOS 1607SMC system management controller 1608SMD storage module device 1609SMEP supervisor mode execution protection 1610SMF single mode fiber 1611SMI structure of management information 1612SMI system management interrupt 1613SMM system management mode 1614SMP serial management protocol 1615SMP symmetric multiprocessing 1616SMR shingled magnetic recording 1617SMR state machine replication 1618SMT simultaneous multithreading 1619SMTP Simple Mail Transfer Protocol 1620SMU system management unit 1621SNA systems network architecture 1622SNAP Sub-Network Access Protocol 1623SNIA Storage Networking Industry Association 1624SNMP Simple Network Management Protocol 1625SNR signal-to-noise ratio 1626SOA service oriented architecture 1627SOAP Simple Object Access Protocol 1628SOC security operations center 1629SOC system on chip 1630SOF start of frame 1631SOH start of header 1632SOHO small office/home office 1633SOL serial over LAN 1634SOM system on module 1635SP service pack 1636SP stack pointer 1637SPA storage pool allocator 1638SPAN switched port analyzer 1639SPARC scalable processor architecture 1640SPARQL SPARQL Protocol and RDF Query Language 1641SPD security policy database 1642SPD serial presence detect 1643SPDIF Sony/Philips digital interface format 1644SPI serial peripheral interface 1645SPI stateful packet inspection 1646SPIR standard portable intermediate representation 1647SPL secondary program loader 1648SPL spinlock 1649SPL system interrupt priority level 1650SPMD single process, multiple data 1651SPR special purpose register 1652SPT sectors per track 1653SQA software quality assurance 1654SQCIF sub quarter common intermediate format 1655SQL Structured Query Language 1656SRAM static random access memory 1657SRC sample rate conversion 1658SRP SCSI RDMA protocol 1659SRR shaped round robin 1660SRTP Secure Real-time Transport Protocol 1661SS self-snoop 1662SS stack segment 1663SSA static single assignment 1664SSAP source service access point 1665SSB single-sideband modulation 1666SSB speculative store bypass 1667SSBB speculative store bypass barrier (Arm) 1668SSBD speculative store bypass disable (Intel) 1669SSC spread spectrum clock 1670SSD solid state drive 1671SSE streaming SIMD extensions 1672SSFDC solid state floppy disc card 1673SSH secure shell 1674SSI server side includes 1675SSID service set identifier 1676SSL secure sockets layer 1677SSP stack smashing protection 1678SSRF server-side request forgery 1679SSTP secure socket tunneling protocol 1680STC software thermal control 1681STD state transition diagram 1682STEK session ticket encryption key 1683STM software transactional memory 1684STOMP Streaming Text Oriented Messaging Protocol 1685STP Spanning Tree Protocol 1686STP shielded twisted pair 1687STRG spanning tree root guard 1688SUN Stanford University Network 1689SUS Single Unix Specification 1690SUT system under test 1691SVC switched virtual circuit 1692SVG scalable vector graphics 1693SVGA Super Video Graphics Array 1694SVI {switch,switched} virtual interface 1695SVM secure virtual machine 1696SVM support vector machine 1697SVR System V Release 1698SVS Separate Virtual Space 1699SWF Shockwave Flash 1700SWIG simplified wrapper [and] interface generator 1701SYR symbol timing recovery 1702TA test assertion 1703TA transmitter address 1704TAA transactional asynchronous abort (Intel) 1705TACACS terminal access controller access-control system 1706TAI international atomic time 1707TAO track at once 1708TAOCP The Art of Computer Programming 1709TAP Test Anything Protocol 1710TAS test and set 1711TB terabyte 1712TBNF transitional backus-naur form 1713TCB trace capture buffer 1714TCB trusted computing base 1715TCC thermal control circuit 1716TCL tool command language 1717TCP Transmission Control Protocol 1718TCQ tagged command queueing 1719TDC time [to] digital converter 1720TDD test-driven development 1721TDD time division duplex 1722TDM time division multiplexing 1723TDMA time division multiple access 1724TDOA time difference of arrival 1725TDP thermal design {point,power} 1726TDR time-domain reflectometry 1727TECO Text Editor and Corrector 1728TEE Trusted Execution Environment 1729TFT thin film transistor 1730TFTP Trivial File Transfer Protocol 1731TIAS try it and see 1732TIFF tagged image file format 1733TITS try it to see 1734TK temporal key 1735TKIP Temporal Key Integrity Protocol 1736TLA top level aggregator 1737TLB translation lookaside buffer 1738TLD top level domain 1739TLER time-limited error recovery 1740TLI transport layer interface 1741TLS thread local storage 1742TLS transport layer security 1743TLV type, length, value 1744TM Turing machine 1745TM thermal monitor 1746TMDS transition minimized differential signaling 1747TMG transmogrifier 1748TMO timeout 1749TOD time of day 1750TOE TCP offload engine 1751TOFU trust on first use 1752TOS terms of service 1753TOS trusted operating system 1754TOS type of service 1755TOTP time-based one time password 1756TP transaction processing 1757TPI tracks per inch 1758TPM transactions per minute 1759TPM trusted platform module 1760TPR task priority register 1761TPS transactions per second 1762TPS transmission parameters signaling 1763TR task register 1764TR token ring 1765TRL timing recovery loop 1766TRNG true random number generator 1767TS terminal services 1768TS time series 1769TS time stamp 1770TS transport stream 1771TSAN Thread Sanitizer 1772TSC time stamp counter 1773TSD time stamp disable 1774TSDB time series database 1775TSL test, set, lock 1776TSO TCP segmentation offload 1777TSO Total Store Ordering 1778TSO time sharing option 1779TSP Time-Stamp Protocol 1780TSP Tunnel Setup Protocol 1781TSP time synchronization protocol 1782TSP traveling salesman problem 1783TSS task state segment 1784TSV tab-separated values 1785TSX transaction synchronization extensions (Intel) 1786TTL time to live 1787TTL transistor-transistor logic 1788TTM translation table maps 1789TTY teletype 1790TU translation unit 1791TUI {terminal,text-based,textual} user interface 1792TX {transmit out,transmitter} 1793TXG transaction group 1794TZ time zone 1795UAC user {access,account} control 1796UAF use-after-free 1797UART universal asynchronous receiver/transmitter 1798UAT user acceptance testing 1799UB undefined behavior 1800UBSAN Undefined Behavior Sanitizer 1801UC uncacheable 1802UCS unified computing system 1803UCS uniform-cost search 1804UCS universal coded character set 1805UDI uniform driver interface 1806UDMA ultra DMA 1807UDO ultra density optical 1808UDP User Datagram Protocol 1809UDS Unix Domain Socket 1810UEFI unified extensible firmware interface 1811UFO UDP fragmentation offload 1812UFS Unix File System 1813UGA universal graphics adapter 1814UI unit interval 1815UI user interface 1816UICC universal integrated circuit card 1817UID unique identifier 1818UID user identifier 1819UL upload 1820ULA unique local address 1821UMA uniform memory access 1822UMA upper memory area 1823UMB upper memory block 1824UML unified modeling language 1825UMPC ultra-mobile PC 1826UPNP universal plug and play 1827UPS uninterruptible power supply 1828URI uniform resource identifier 1829URL uniform resource locator 1830URN uniform resource name 1831USART universal synchronous/asynchronous receiver/transmitter 1832USB universal serial bus 1833USWC uncacheable speculative write combining 1834UT unit test 1835UTC coordinated universal time 1836UTF unicode transformation formats 1837UTP unshielded twisted pair 1838UTS UNIX time-sharing 1839UUCP Unix-to-Unix Copy Protocol 1840UUID universally unique identifier 1841UUOC useless use of cat 1842UUT unit under test 1843UX user experience 1844VA vertical alignment 1845VA virtual address 1846VA volt-ampere 1847VAX virtual address extension 1848VB Visual Basic 1849VBR volume boot record 1850VCA variable-gain amplifier 1851VCC common collector voltage 1852VCCP virtual chassis control protocol 1853VCF voltage-controlled filter 1854VCM virtual channel memory 1855VCO voltage-controlled oscillator 1856VCP virtual chassis port 1857VCS version control system 1858VDP vulnerability disclosure policy 1859VDPAU Video Decode and Presentation API for Unix 1860VES virtual execution system 1861VESA Video Electronics Standards Association 1862VFO variable-frequency oscillator 1863VFS virtual file system 1864VG volume group 1865VGA Video Graphics Array 1866VHD virtual hard disk 1867VHDCI very high density cable interconnect 1868VID {VLAN,voltage level} identifier 1869VIM Vi IMproved 1870VIPT virtually indexed, physically tagged 1871VIVT virtually indexed, virtually tagged 1872VLAN virtual local area network 1873VLD variable-length decoding 1874VLIW very long instruction word 1875VLSI very large scale integration 1876VLSM variable length subnet mask 1877VM virtual {machine,memory} 1878VME virtual mode extension 1879VMX vector multimedia extensions 1880VMX virtual machine extensions 1881VNC virtual network computing 1882VNI virtual network identifier 1883VOD video on demand 1884VPD vital product data 1885VPN virtual private network 1886VPWS virtual private wire service 1887VR virtual reality 1888VRAM video random access memory 1889VRF virtual routing and forwarding 1890VRM voltage regulator module 1891VROC Virtual RAID On CPU 1892VRRP Virtual Router Redundancy Protocol 1893VSTP VLAN Spanning Tree Protocol 1894VTEP VXLAN tunnel endpoint 1895VTP VLAN Trunking Protocol 1896VXFS Veritas file system 1897VXLAN virtual extensible LAN 1898VXVM Veritas volume manager 1899W watt 1900W3C World Wide Web Consortium 1901WAFL write anywhere file layout 1902WAMP Web Application Messaging Protocol 1903WAN wide area network 1904WAP Wireless Application Protocol 1905WAP wireless access point 1906WDDM Windows Display Driver Model 1907WDM Wavelength Division Multiplexing 1908WDM Windows Driver Model 1909WDT watchdog timer 1910WEP Wired Equivalent Privacy 1911WFI wait for interrupt 1912WFQ weighted fair queuing 1913WH write hit 1914WHEA Windows hardware error architecture 1915WIFI wireless fidelity 1916WLAN wireless local area network 1917WM write miss 1918WMF Windows meta file 1919WMI Windows Management Instrumentation 1920WOL Wake-on-LAN 1921WOM Wake-on-Modem 1922WOR Wake-on-Ring 1923WORM write once read many 1924WP WordPerfect 1925WP word processor 1926WP write protect 1927WPA Wi-Fi Protected Access 1928WPA2 Wi-Fi Protected Access II 1929WPAD web proxy auto-discovery protocol 1930WPS Wi-Fi Protected Setup 1931WRAM window random access memory 1932WS web services 1933WTC write through caching 1934WTD weighted tail drop 1935WWAN wireless wide area network 1936WWW world wide web 1937WYSIAYG what you see is all you get 1938WYSIWYG what you see is what you get 1939XBAR crossbar 1940XDMCP X Display Manager control protocol 1941XER XML encoding rules 1942XGA Extended Graphics Array 1943XHR XMLHttpRequest 1944XIP execute in place 1945XML Extensible Markup Language 1946XMSS eXtended Merkle Signature Scheme 1947XNA XNA's not acronymed 1948XNS Xerox network systems 1949XOF eXtendable-Output Function 1950XOR exclusive or 1951XP extreme programming 1952XSI X/Open System Interface 1953XSL extensible stylesheet language 1954XSLT extensible stylesheet language transformations 1955XSS cross site scripting 1956XT extended technology 1957XTACACS extended terminal access controller access-control system 1958XTI X/Open transport interface 1959XUL XML user interface language 1960YACC yet another compiler compiler 1961YAML YAML ain't markup language 1962YANG yet another next generation 1963YAWPFAPR you are welcome; please file a problem report 1964YP Yellow Pages 1965YTD year to date 1966ZAP ZFS attribute processor 1967ZBR zone bit recording 1968ZFOD zero-filled on demand 1969ZFS zettabyte file system 1970ZIF zero insertion force 1971ZIFS zero insertion force socket 1972ZIL ZFS intent log 1973ZMA zone multicast address 1974ZOI zero one infinity 1975ZOI zone of influence 1976ZPL ZFS Posix layer 1977ZVOL ZFS Volume 1978