acronyms.comp revision 1.400
1$NetBSD: acronyms.comp,v 1.400 2025/02/21 01:38:38 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 696GUI graphical user interface 697GUID globally unique identifier 698GUS Gravis UltraSound 699GVFS git virtual file system 700HA high availability 701HAL hardware abstraction layer 702HAT hashed array tree 703HATEOAS hypermedia as the engine of application state 704HBA host bus adapter 705HBS hash-based signature 706HCC Home Cable Computer 707HCCA Home Cable Computer Adaptor 708HCF halt and catch fire 709HCI host controller interface 710HCI human-computer interaction 711HCL hardware compatibility list 712HDCP High-bandwidth Digital Content Protection 713HDD hard disk drive 714HDL hardware description language 715HDMI High-Definition Multimedia Interface 716HDTV high-definition television 717HECI host embedded controller interface 718HEST hardware error source table 719HEVC high efficiency video coding 720HF high frequency 721HFM highest frequency mode 722HFS hierarchical file system 723HID human interface device 724HKDF HMAC-based key derivation function 725HKP HTTP Keyserver Protocol 726HLE hardware lock elision (Intel) 727HLL high-level language 728HMA high memory area 729HMI human-machine interface 730HNDL harvest now, decrypt later 731HOOD hierarchical object oriented design 732HOTP HMAC-based one time password 733HP Hewlett-Packard 734HPC high performance computing 735HPD hot plug detection 736HPET high precision event timer 737HPKE hybrid public key encryption 738HSM hardware security module 739HSM hierarchical storage management 740HSRP hot standby router protocol 741HT hyper-threading 742HTC hardware thermal control 743HTCC high temperature co-fired ceramic 744HTML HyperText Markup Language 745HTT hyper-threading technology 746HTTP Hypertext Transfer Protocol 747HTTPS Hypertext Transfer Protocol Secure 748HVDS High-Voltage Differential Signaling 749HVM hardware virtual machine 750HWASAN Hardware-assisted Address Sanitizer 751HZ Hertz 752I2O intelligent input/output 753IA information assurance 754IAAS infrastructure as a service 755IAB Internet Architecture Board 756IANA Internet Assigned Numbers Authority 757IBC iterated block cipher 758IBM International Business Machines 759IBPI international blinking pattern interpretation 760IBS instruction based sampling 761IBSS independent basic service set 762IBT indirect branch tracking 763IC integrated circuit 764ICA independent computer architecture 765ICACLS integrity control access control lists 766ICB Internet Citizen's Band 767ICE in-circuit emulator 768ICE internal compiler error 769ICH I/O controller hub 770ICMP Internet Control Message Protocol 771ICT information and communications technology 772ICW initialization command word 773IDA Intel dynamic acceleration 774IDCMP Intuition direct communication message port 775IDCT inverse discrete cosine transform 776IDE integrated development environment 777IDE integrated drive electronics 778IDPS intrusion detection [and] prevention system 779IDRP inter-domain routing protocol 780IDS intrusion detection system 781IDT interrupt descriptor table 782IE Internet Explorer 783IEC International Electrotechnical Commission 784IEEE Institute of Electrical and Electronics Engineers 785IESG Internet Engineering Steering Group 786IETF Internet Engineering Task Force 787IF intermediate frequency 788IFCM isochronous flow control mode 789IFF Interchange File Format 790IFS internal field separator 791IGD Internet gateway device 792IGMP Internet Group Management Protocol 793IGP interior gateway protocol 794IHV independent hardware vendor 795IKE Internet key exchange 796IKM input keying material 797ILM internal loopback mode 798ILOM integrated lights-out management 799ILP instruction level parallelism 800IM instant messaging 801IMAP Internet Message Access Protocol 802IMC integrated memory controller 803IMCR interrupt mode configuration register 804IME input method editor 805IMR interrupt mask register 806IMS information management system 807IMSI international mobile subscriber identity 808INCITS InterNational Committee for Information Technology Standards 809INODE index node 810IO input/output 811IOCTL input/output control 812IOM input/output managers 813IOMMU input/output memory management unit 814IOT Internet of Things 815IP Internet Protocol 816IP intellectual property 817IPC instructions per cycle 818IPC interprocess communication 819IPCF interprocess communication facility 820IPE integrated programming environment 821IPI intelligent peripheral interface 822IPI interprocessor interrupt 823IPL Initial Program Load 824IPL Interrupt Priority Level 825IPMB Intelligent Platform Management Bus 826IPMI Intelligent Platform Management Interface 827IPNG Internet Protocol, Next Generation 828IPS in-plane switching 829IPS intrusion prevention system 830IPSEC Internet Protocol Security 831IR intermediate representation 832IRC Internet Relay Chat 833IRDA infrared data association 834IRDP ICMP Router Discovery Protocol 835IRQ interrupt request 836IRQL interrupt request level 837IRR interrupt request register 838IRTF Internet Research Task Force 839IS information system 840ISA industry standard architecture 841ISA instruction set architecture 842ISB instruction synchronization barrier (Arm) 843ISDN integrated services digital network 844ISE instant secure erase 845ISI inter-symbol interference 846ISL initial system load 847ISM industrial, scientific, [and] medical 848ISMS information system management system 849ISN initial serial number 850ISO International Standards Organization 851ISOC Internet Society 852ISP Internet service provider 853ISR in-service register 854ISR interrupt service routine 855IST internal spanning tree 856IST interrupt stack table 857ISV independent software vendor 858IT information technology 859ITB Intel Turbo Boost 860ITIL information technology infrastructure library 861ITP in-target probe 862ITSM IT service management 863IV initialization vector 864IVT interrupt vector table 865JBOD just a bunch of disks 866JCL Job Control Language 867JFET junction [gate] field-effect transistor 868JIT just in time 869JPEG Joint Photographic Experts Group 870JRE Java Runtime Environment 871JSON JavaScript Object Notation 872JTAG joint test action group 873KASAN Kernel Address Sanitizer 874KASLR kernel address space layout randomization 875KB keyboard 876KB kilobyte 877KBD keyboard 878KBD kilobaud 879KCS keyboard controller style 880KDF key derivation function 881KEK key encryption key 882KEM key encapsulation mechanism 883KLOC thousand lines of code 884KMS kernel-mode setting 885KPI kernel programming interface 886KVA kernel virtual address 887KVM kernel virtual machine 888KVM kernel virtual memory 889KVM keyboard, video, [and] mouse 890L2CAP link layer control and adaptation protocol 891LAG link aggregation group 892LAMP Linux Apache MySQL {Perl,PHP,Python} 893LAN local area network 894LAPIC local advanced programmable interrupt controller 895LAR load access rights 896LBA logical block addressing 897LBNF labeled backus-naur form 898LBS location-based service 899LCD liquid crystal display 900LCP link control protocol 901LDA local delivery agent 902LDAP Lightweight Directory Access Protocol 903LDR light-dependent resistor 904LDT local descriptor table 905LE logical extent 906LED light emitting diode 907LELL low energy link layer 908LER label edge router 909LF line feed 910LF low frequency 911LFM lowest frequency mode 912LFN long file names 913LFO low-frequency oscillation 914LFS log-structured file system 915LFU least frequently used 916LHP loop heat pipe 917LIF logical interchange format 918LIFO last in, first out 919LILO LInux LOader 920LILO last in, last out 921LINT local interrupt 922LIR local Internet registry 923LISP LISt Processor 924LISP Locator/ID Separation Protocol 925LKM {Linux,loadable} kernel module 926LKML Linux kernel mailing list 927LL load linked 928LL/SC load linked/store conditional 929LLC logical link control 930LLD low-level design 931LLDD low-level design document 932LLDP link layer discovery protocol 933LLF low level format 934LLMNR link-local multicast name resolution 935LLVM Low Level Virtual Machine 936LM long mode 937LMCE local machine check exception 938LMI local management interface 939LMM link management mode 940LMP link management protocol 941LMS Leighton-Micali Signature 942LNO loop nest optimization 943LOC lines of code 944LOM lights-out management 945LPC low pin count 946LPE Linux performance events 947LPS local positioning system 948LRC longitudinal redundancy check 949LRM left-to-right mark 950LRO Large Receive Offload 951LRO left-to-right override 952LRU least recently used 953LS link state 954LSAN Leak Sanitizer 955LSB Linux standards base 956LSB least significant {bit,byte} 957LSI large scale integration 958LSL load segment limit 959LSM log structured merge 960LSN Large Scale NAT 961LSN log sequence number 962LSO large send offload 963LSR label switch router 964LTCC low temperature co-fired ceramic 965LTO linear tape-open 966LTO link time optimization 967LTR left to right 968LTR letter(-sized paper) 969LTR load task register 970LTS long term support 971LUA Lua Uppercase Accident 972LUN logical unit number 973LV logical volume 974LVDS Low-Voltage Differential Signaling 975LVM logical volume management 976LVT local vector table 977LWP light-weight process 978LZSS Lempel Ziv Storer Szymanski 979LZW Lempel Ziv Welch 980MAB MAC authentication bypass 981MAC mandatory access control 982MAC message authentication {check,code} 983MAC {media,medium} access control 984MADT multiple APIC descriptor table 985MAMR microwave-assisted magnetic recording 986MB megabyte 987MBA multi-boot agent 988MBR master boot record 989MBS megabits per second 990MC memory controller 991MCA MicroChannel architecture 992MCA machine check architecture 993MCC multiversion concurrency control 994MCE machine check exception 995MCGA Multi-Color Graphics Array 996MCH memory controller hub 997MCLAG multi-chassis link aggregation group 998MCM multi-chip module 999MCQ memory controlled queue 1000MD MiniDisc 1001MD machine-dependent 1002MD-SAL model-driven service abstraction layer 1003MDA Monochrome Display Adapter 1004MDA mail delivery agent 1005MDC Management Data Clock 1006MDI Medium Dependent Interface 1007MDI-X Medium Dependent Interface Crossover 1008MDIO Management Data Input/Output 1009MDMX MIPS Digital Media eXtension 1010MDRAM multibank dynamic random access memory 1011MDS microarchitectural data sampling 1012MESI modified, exclusive, shared, invalid 1013MFC Microsoft Foundation Classes 1014MFC merge from current 1015MFM modified frequency modulation 1016MFU most frequently used 1017MGCP media gateway control protocol 1018MHU message handling unit 1019MI machine interface 1020MI machine-independent 1021MIB management information base 1022MIC message integrity {check,code} 1023MID mobile Internet device 1024MIDI musical instrument digital interface 1025MIF management information format 1026MII media independent interface 1027MIM man in the middle 1028MIMD multiple instruction, multiple data 1029MIME Multipurpose Internet Mail Extensions 1030MIMO multiple input multiple output 1031MIPS Microprocessor without Interlocked Pipeline Stages 1032MIPS million instructions per second 1033MISD multiple instruction, single data 1034MIT Massachusetts Institute of Technology 1035MITM man in the middle 1036ML machine language 1037ML machine learning 1038ML mailing list 1039ML markup language 1040ML maximum likelihood 1041ML-KEM module-lattice based key-encapsulation mechanism 1042MLAG multi-chassis link aggregation group 1043MLC multi-level cell 1044MLD multicast listener discovery 1045MLHP micro loop heat pipe 1046MLIR multi-level intermediate representation 1047MLO MMC loader 1048MMC multi-media card 1049MMF multi-mode fiber 1050MMIC monolithic microwave integrated circuit 1051MMIO memory mapped input/output 1052MMORPG massive multiplayer online role playing game 1053MMRP multiple MAC registration protocol 1054MMU memory management unit 1055MMX matrix math extension 1056MMX multimedia extension 1057MMX multiple math extension 1058MO magneto-optical 1059MOESI modified, owned, exclusive, shared, invalid 1060MOF maximum operating frequency 1061MOSFET metal-oxide-semiconductor field-effect transistor 1062MOSI modified, owned, shared, invalid 1063MP multi-platform 1064MP multiplayer 1065MP {multiprocessing,multiprocessor} 1066MPEG moving picture experts group 1067MPI message passing interface 1068MPLS Multiprotocol Label Switching 1069MPP massively parallel processor 1070MPS memory pool system 1071MPS multiprocessor specification 1072MQTT Message Queuing Telemetry Transport 1073MR modem ready 1074MRO method resolution order 1075MRP multiple registration protocol 1076MRU most recently used 1077MS Microsoft 1078MSAN Memory Sanitizer 1079MSB most significant {bit,byte} 1080MSC message sequence chart 1081MSE mean square error 1082MSF minutes seconds frames 1083MSI message signaled interrupt 1084MSI modified, shared, invalid 1085MSR {machine state,model-specific} register 1086MSS maximum segment size 1087MSTP Multiple Spanning Tree Protocol 1088MT machine translation 1089MTA mail transfer agent 1090MTBF mean time between failures 1091MTP media transfer protocol 1092MTRR memory type range register 1093MTTF mean time to failure 1094MTU maximum transmission unit 1095MUA mail user agent 1096MUD multi-user domain 1097MVCC multiversion concurrency control 1098MVR multicast VLAN registration 1099MVRP multiple VLAN registration protocol 1100MWE module width encoding 1101MX mail exchange 1102MZM Majorana zero mode 1103NACK negative acknowledgement 1104NAK negative acknowledgement 1105NAN neighbor awareness networking 1106NAN not a number 1107NAPT Network Address Port Translation 1108NAS network attached storage 1109NAT network address translation 1110NAV network allocation vector 1111NC numerical control 1112NC-SI network controller sideband interface 1113NCO numerically-controlled oscillator 1114NCP Network Control Protocol 1115NCQ native command queuing 1116NCSI network connectivity status indicator 1117ND neighbor discovery 1118NDFA nondeterministic finite automaton 1119NDIS network driver interface specification 1120NE numeric error 1121NEWS Network extensible Window System 1122NFA nondeterministic finite automaton 1123NFC near-field communication 1124NFCI no functional change intended 1125NFS network file system 1126NFV network function virtualization 1127NHACP NABU HCCA Application Communication Protocol 1128NIA next instruction address 1129NIC network information center 1130NIC network interface card 1131NIDS network intrusion detection system 1132NIKE Non-Interactive Key Exchange 1133NIP network interface protocol 1134NIPR non-classified IP router (network) 1135NIPS network intrusion prevention system 1136NIS network information service 1137NIST National Institute of Standards and Technology 1138NLS native language support 1139NMI non-maskable interrupt 1140NMR nonce-misuse resistance 1141NNTP Network News Transfer Protocol 1142NOC network operations center 1143NOP no operation 1144NOS network operating system 1145NP nondeterministic polynomial time 1146NRND not recommended for new designs 1147NRZ non-return to zero 1148NSA National Security Agency 1149NSA nation-state adversary 1150NSA no such agency 1151NTA negative trust anchor 1152NTM non-deterministic Turing machine 1153NTP Network Time Protocol 1154NUMA non-uniform memory access 1155NURBS non-uniform rational basis spline 1156NVD National Vulnerability Database 1157NVMM NetBSD Virtual Machine Monitor 1158NVMM non-volatile main memory 1159NVRAM non-volatile random access memory 1160NW not write-through 1161NX no execute 1162OAEP optimal asymmetric encryption padding 1163OAM operations, administration, and {management,maintenance} 1164OBO off by one 1165OBOE off by one error 1166OCL object constraint language 1167OCR optical character recognition 1168ODBC Open Database Connectivity 1169ODCM on-demand clock modulation 1170ODE offline device environment 1171ODI open data-link interface 1172ODM object data manager 1173ODMR on-demand mail relay 1174ODT on-die termination 1175OEM original equipment manufacturer 1176OFB output feedback 1177OFDM orthogonal frequency division multiplexing 1178OFET organic field-effect transistor 1179OLAP online analytical processing 1180OLE object linking and embedding 1181OLTP online transaction processing 1182ONCE on-{chip,circuit} emulation 1183ONFI open nand flash interface 1184OO OpenOffice 1185OO object oriented 1186OOB out of band 1187OOE out of order execution 1188OOM out of memory 1189OOO OpenOffice.org 1190OOP object oriented programming 1191OOPS object oriented programming systems 1192OOSE object oriented software engineering 1193OPM operations per minute 1194OPS operations per second 1195OQL Object Query Language 1196ORB object request broker 1197ORM object-relational mapping 1198OS operating system 1199OSD object-based storage device 1200OSD open source definition 1201OSF open software foundation 1202OSI Open Source Initiative 1203OSI open systems interconnection 1204OSPF open shortest path first 1205OSPM OS power management 1206OSS open sound system 1207OSS open source software 1208OSVW operating system visible workarounds 1209OTP one time password 1210OTP open telecom platform 1211OU organizational unit 1212OUI organizationally unique identifier 1213OWASP Open Web Application Security Project 1214OWL Web Ontology Language 1215P2P PCI to PCI 1216P2P peer to peer 1217PA phase accumulator 1218PA physical address 1219PAAS platform as a service 1220PAC phase-amplitude converter 1221PAE physical address extension 1222PAGP port aggregation protocol 1223PAL phase alternating line 1224PAL programmable array logic 1225PAM pluggable authentication modules 1226PAM pulse amplitude modulation 1227PAP password authentication protocol 1228PAT page attribute table 1229PAT port address translation 1230PATA parallel ATA 1231PAX portable archive exchange 1232PBE pending break encoding 1233PBE programming by example 1234PBKDF password-based key derivation function 1235PBR partition boot record 1236PBX private branch exchange 1237PC personal computer 1238PC program counter 1239PCB Protocol Control Block 1240PCB printed circuit board 1241PCB process control block 1242PCBC propagating cipher block chaining 1243PCC Portable C Compiler 1244PCD page-level cache disable 1245PCE path computation element 1246PCE performance-monitor counter enable 1247PCEP Path Computation Element Protocol 1248PCH platform controller hub 1249PCI peripheral component interconnect 1250PCM phase change memory 1251PCM pulse code modulation 1252PCMCIA Personal Computer Memory Card International Association 1253PCP Port Control Protocol 1254PD public domain 1255PDA personal digital assistant 1256PDA pushdown automaton 1257PDAG propositional directed acyclic graph 1258PDB power distribution board 1259PDF portable document format 1260PDM pulse-duration modulation 1261PDN pull-down network 1262PDP page {descriptor,directory} page 1263PDS product data sheet 1264PDU protocol data unit 1265PE portable executable 1266PE protection enable 1267PE provider edge 1268PEAP Protected EAP 1269PECI platform environment control interface 1270PED PIN Entry Device 1271PEP protocol extension protocol 1272PER packed encoding rules 1273PFS perfect forward secrecy 1274PGAS partitioned global address space 1275PGE page global enable 1276PGO profile guided optimization 1277PGP Pretty Good Privacy 1278PHB PCI host bridge 1279PHP PHP: Hypertext Preprocessor 1280PIC performance instrumentation counters 1281PIC position independent code 1282PIC programmable interrupt controller 1283PICNIC problem in chair, not in computer 1284PID process id 1285PIE position independent executable 1286PIL Priority Interrupt Level 1287PIM personal information manager 1288PIM platform-independent model 1289PIO programmed input/output 1290PIPT physically indexed, physically tagged 1291PIQ prefetch input queue 1292PIR private information retrieval 1293PIT programmable interrupt timer 1294PIV personal identity verification 1295PIX Private Internet eXchange 1296PKCS public-key cryptography standards 1297PKE public key encryption 1298PKI public key infrastructure 1299PLC programmable logic controller 1300PLD programmable logic device 1301PLL phase locked loop 1302PLRU pseudo LRU 1303PLT procedure linkage table 1304PLTM package level thermal management 1305PM power management 1306PM {phase,pulse} modulation 1307PMC performance monitoring counters 1308PME power management event 1309PMEG page map entry group 1310PMI performance monitoring infrastructure 1311PMI platform management interrupt 1312PMIC power management integrated circuit 1313PMIO port-mapped input/output 1314PMT photo-multiplier tube 1315PMU performance monitoring units 1316PMU power management unit 1317PNG portable network graphics 1318PNP plug and play 1319POE power over ethernet 1320POF probability of failure 1321POP Post Office Protocol 1322POP power on password 1323POR plan of record 1324POSIX Portable Operating System Interface [for Unix] 1325POST power on self test 1326POTS plain old telephone system 1327POWER Performance Optimization With Enhanced RISC 1328POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1329PP pair programming 1330PPB PCI [to] PCI bridge 1331PPC Power Performance Computing 1332PPC PowerPC 1333PPI pixels per inch 1334PPM pages per minute 1335PPP Point-to-Point Protocol 1336PPPOA Point-to-Point Protocol over ATM 1337PPPOE Point-to-Point Protocol over Ethernet 1338PPR processor programming reference 1339PPT powerpoint 1340PPT punched paper tape 1341PPU physics processing unit 1342PQC post-quantum cryptography 1343PRAM Parameter RAM 1344PRBS pseudorandom bit sequence 1345PRF pseudorandom function [family] 1346PRG pseudorandom generator 1347PRML partial response, maximum likelihood 1348PRN pseudorandom {noise,number} 1349PRNG pseudorandom number generator 1350PROM programmable read only memory 1351PRP pseudorandom permutation 1352PRU Programmable Realtime Unit 1353PS PostScript 1354PSD power spectral density 1355PSE page size extensions 1356PSK phase shift keying 1357PSK pre-shared key 1358PSTN public switched telephone network 1359PSW program status word 1360PTE page table entry 1361PTLA pseudo top level aggregator 1362PTP page table page 1363PTV perceived target value 1364PU processing unit 1365PUC personal unblocking code 1366PUN physical unit number 1367PV physical volume 1368PVC permanent virtual circuit 1369PVG physical volume group 1370PVI protected-mode virtual interrupt 1371PVRST Per-VLAN rapid spanning tree 1372PVST Per-VLAN Spanning Tree 1373PWM pulse width modulation 1374PXE preboot execution environment 1375QA quality assurance 1376QAM quadrature amplitude modulation 1377QAM quality assurance management 1378QBE query by example 1379QC quality control 1380QCIF quarter common intermediate format 1381QDI quasi delay insensitive 1382QOI quality of implementation 1383QOI quick order interface 1384QOS quality of service 1385QPU quantum processing unit 1386QUIC Quick UDP Internet Connections 1387QVL qualified vendor list 1388R/O read only 1389R/W read/write 1390RA receiver address 1391RA remote assistance 1392RA resource affinity 1393RA router advertisement 1394RAD rapid application development 1395RADIUS remote authentication dial-in user service 1396RAID redundant array of {independent,inexpensive} disks 1397RAII resource acquisition is initialization 1398RAM random access memory 1399RAS reliability, availability and serviceability 1400RAS remote access service 1401RAS restartable atomic sequence 1402RAS row address strobe 1403RAT register allocation table 1404RAT remote access trojan 1405RBF radial basis function 1406RBL real-time blackhole list 1407RBL reputation block list 1408RBNF routing backus-naur form 1409RBT red-black tree 1410RC release candidate 1411RC remote control 1412RC run commands 1413RCS Revision Control System 1414RCU read, copy, update 1415RDB Rigid Disk Block 1416RDBMS relational database management system 1417RDF Resource Description Framework 1418RDM relational data model 1419RDMA remote direct memory access 1420RDP remote desktop protocol 1421RDRAM Rambus DRAM 1422RE regular expression 1423REPL read, evaluate, print, loop 1424REST representational state transfer 1425RF radio frequency 1426RFB remote frame buffer 1427RFI radio frequency interference 1428RFO request for ownership 1429RFU reserved for future use 1430RGB red green blue 1431RGBA red green blue alpha 1432RGMII reduced gigabit media independent interface 1433RH read hit 1434RHEL Red Hat Enterprise Linux 1435RHL Red Hat Linux 1436RIB routing information base 1437RIFF Resource Interchange File Format 1438RIP Raster Image Processor 1439RIP Routing Information Protocol 1440RIPR releasable IP router (network) 1441RIR regional Internet registry 1442RISC reduced instruction set {computer,computing} 1443RKM ROM Kernel Manual 1444RLE run length encoding 1445RLL run length limited 1446RLO right-to-left override 1447RM read miss 1448RMCP Remote Management Control Protocol 1449RMI remote method invocation 1450RMO Relaxed Memory Ordering 1451RMPM rapid memory power management 1452RMS root mean square 1453RMW read, modify, write 1454RNG random number generator 1455ROA route origin authorization 1456ROM read only memory 1457ROP return-oriented programming 1458RPC remote procedure call 1459RPG Report Program Generator 1460RPKI resource PKI 1461RPL requested privilege level 1462RPM revolutions per minute 1463RPN reverse Polish notation 1464RPVST Rapid Per-VLAN Spanning Tree 1465RR random replacement 1466RR round robin 1467RS relay station 1468RSA Rivest, Shamir, [and] Adleman 1469RSC Receive Segment Coalescing 1470RSIP Realm Specific IP 1471RSN Robust Secure Network 1472RSS Receive Side Scaling 1473RSS really simple syndication 1474RSS residual sum of squares 1475RSTP Rapid Spanning Tree Protocol 1476RT real time 1477RTC real time clock 1478RTC real time computing 1479RTF rich text format 1480RTL register transfer language 1481RTL resistor-transistor logic 1482RTL right to left 1483RTM restricted transactional memory (Intel) 1484RTOS real time operating system 1485RTP Real-time Transport Protocol 1486RTS request to send 1487RTT round trip time 1488RTTI run-time type information 1489RUP rational unified process 1490RW Rabin-Williams 1491RWM read-write memory 1492RX {receive,receiver} 1493S/PDIF Sony/Philips Digital Interface Format 1494SA security advisory 1495SA security association 1496SA source address 1497SA structured analysis 1498SAAS software as a service 1499SABRE Semi-automated business research environment 1500SACD super audio compact disc 1501SAD security association database 1502SAF-TE SCSI accessed fault-tolerant enclosure 1503SAGE Semi-automated ground environment 1504SAL {service,system} abstraction layer 1505SAM serial access memory 1506SAM sum addressed memory 1507SAML security assertion markup language 1508SAN storage area network 1509SAP service access point 1510SAPIC streamlined advanced programmable interrupt controller 1511SASD structured analysis, structured design 1512SASI Shugart Associates System Interface 1513SASL simple authentication [and] security layer 1514SATA serial advanced technology attachment 1515SAX simple API for XML 1516SB sound blaster 1517SBI supervisor binary interface 1518SBOM Software Bill of Materials 1519SBSA server base system architecture 1520SBU standard build unit 1521SC store conditional 1522SCA source code analyzer 1523SCADA supervisory control and data acquisition 1524SCC single chip cloud 1525SCC source code control 1526SCCP skinny call control protocol 1527SCCS Source Code Control System 1528SCI scalable coherent interface 1529SCI system control interrupt 1530SCIM smart common input method 1531SCM software configuration management 1532SCM source code management 1533SCM storage-class memory 1534SCO synchronous connection orientated 1535SCP secure copy 1536SCP system control processor 1537SCPI system control and power interface 1538SCSI Small Computer System Interface 1539SCT Signed Certificate Timestamp 1540SCTP Stream Control Transmission Protocol 1541SDDC software defined data center 1542SDEI software delegated exception interface 1543SDI symbol deinterleave 1544SDK software development kit 1545SDL Simple Declarative Language 1546SDL Simple Direct-media Layer 1547SDLC {software,system,systems} development life cycle 1548SDN software defined networking 1549SDP Session Description Protocol 1550SDR software defined radio 1551SDRAM synchronous dynamic random access memory 1552SDS software defined storage 1553SDT syntax-directed translation 1554SEA synchronous external abort 1555SED self-encrypting drive 1556SED stream editor 1557SEGV segmentation violation 1558SEMB serial ATA enclosure management bridge 1559SEO search engine optimization 1560SES SCSI enclosure services 1561SFC sequential function chart 1562SFI simple firmware interface 1563SFI software fault isolation 1564SFP small form-factor pluggable 1565SFTP SSH File Transfer Protocol 1566SFTP Serial File Transfer Protocol 1567SFTP Simple File Transfer Protocol 1568SGI Silicon Graphics, Inc 1569SGI software generated interrupt 1570SGMII serial gigabit media independent interface 1571SGPIO serial general purpose input/output 1572SGRAM synchronous graphics random access memory 1573SHA secure hash algorithm 1574SICP structure and interpretation of computer programs 1575SIDH supersingular isogeny Diffie-Hellman 1576SIEM security information and event management 1577SIF source input format 1578SIFS short inter-frame space 1579SIM subscriber identity module 1580SIMD single instruction, multiple data 1581SIMM single inline memory module 1582SIP Session Initiation Protocol 1583SIPR secret IP router (network) 1584SIR signal-to-interference ratio 1585SIR slow infrared 1586SIRT security incident response team 1587SISD single instruction, single data 1588SIV synthetic intialization vector 1589SLAAC stateless address auto-configuration 1590SLC single-level cell 1591SLDRAM synchronous-link dynamic random access memory 1592SLED single large expensive disk 1593SLI scalable link interface 1594SLI scan-line interleave 1595SLIC system license internal code 1596SLOC source lines of code 1597SLRU segmented LRU 1598SMA smart memory access 1599SMAF system management action field 1600SMAP Simple Mail Access Protocol 1601SMAP supervisor mode access prevention 1602SMART self-monitoring analysis and reporting technology 1603SMB Server Message Block 1604SMB system management bus 1605SMBIOS System Management BIOS 1606SMC system management controller 1607SMD storage module device 1608SMEP supervisor mode execution protection 1609SMF single mode fiber 1610SMI structure of management information 1611SMI system management interrupt 1612SMM system management mode 1613SMP serial management protocol 1614SMP symmetric multiprocessing 1615SMR shingled magnetic recording 1616SMR state machine replication 1617SMT simultaneous multithreading 1618SMTP Simple Mail Transfer Protocol 1619SMU system management unit 1620SNA systems network architecture 1621SNAP Sub-Network Access Protocol 1622SNIA Storage Networking Industry Association 1623SNMP Simple Network Management Protocol 1624SNR signal-to-noise ratio 1625SOA service oriented architecture 1626SOAP Simple Object Access Protocol 1627SOC security operations center 1628SOC system on chip 1629SOF start of frame 1630SOH start of header 1631SOHO small office/home office 1632SOL serial over LAN 1633SOM system on module 1634SP service pack 1635SP stack pointer 1636SPA storage pool allocator 1637SPAN switched port analyzer 1638SPARC scalable processor architecture 1639SPARQL SPARQL Protocol and RDF Query Language 1640SPD security policy database 1641SPD serial presence detect 1642SPDIF Sony/Philips digital interface format 1643SPI serial peripheral interface 1644SPI stateful packet inspection 1645SPIR standard portable intermediate representation 1646SPL secondary program loader 1647SPL spinlock 1648SPL system interrupt priority level 1649SPMD single process, multiple data 1650SPR special purpose register 1651SPT sectors per track 1652SQA software quality assurance 1653SQCIF sub quarter common intermediate format 1654SQL Structured Query Language 1655SRAM static random access memory 1656SRC sample rate conversion 1657SRP SCSI RDMA protocol 1658SRR shaped round robin 1659SRTP Secure Real-time Transport Protocol 1660SS self-snoop 1661SS stack segment 1662SSA static single assignment 1663SSAP source service access point 1664SSB single-sideband modulation 1665SSB speculative store bypass 1666SSBB speculative store bypass barrier (Arm) 1667SSBD speculative store bypass disable (Intel) 1668SSC spread spectrum clock 1669SSD solid state drive 1670SSE streaming SIMD extensions 1671SSFDC solid state floppy disc card 1672SSH secure shell 1673SSI server side includes 1674SSID service set identifier 1675SSL secure sockets layer 1676SSP stack smashing protection 1677SSRF server-side request forgery 1678SSTP secure socket tunneling protocol 1679STC software thermal control 1680STD state transition diagram 1681STEK session ticket encryption key 1682STM software transactional memory 1683STOMP Streaming Text Oriented Messaging Protocol 1684STP Spanning Tree Protocol 1685STP shielded twisted pair 1686STRG spanning tree root guard 1687SUN Stanford University Network 1688SUS Single Unix Specification 1689SUT system under test 1690SVC switched virtual circuit 1691SVG scalable vector graphics 1692SVGA Super Video Graphics Array 1693SVI {switch,switched} virtual interface 1694SVM secure virtual machine 1695SVM support vector machine 1696SVR System V Release 1697SVS Separate Virtual Space 1698SWF Shockwave Flash 1699SWIG simplified wrapper [and] interface generator 1700SYR symbol timing recovery 1701TA test assertion 1702TA transmitter address 1703TAA transactional asynchronous abort (Intel) 1704TACACS terminal access controller access-control system 1705TAI international atomic time 1706TAO track at once 1707TAOCP The Art of Computer Programming 1708TAP Test Anything Protocol 1709TAS test and set 1710TB terabyte 1711TBNF transitional backus-naur form 1712TCB trace capture buffer 1713TCB trusted computing base 1714TCC thermal control circuit 1715TCL tool command language 1716TCP Transmission Control Protocol 1717TCQ tagged command queueing 1718TDC time [to] digital converter 1719TDD test-driven development 1720TDD time division duplex 1721TDM time division multiplexing 1722TDMA time division multiple access 1723TDOA time difference of arrival 1724TDP thermal design {point,power} 1725TDR time-domain reflectometry 1726TECO Text Editor and Corrector 1727TEE Trusted Execution Environment 1728TFT thin film transistor 1729TFTP Trivial File Transfer Protocol 1730TIAS try it and see 1731TIFF tagged image file format 1732TITS try it to see 1733TK temporal key 1734TKIP Temporal Key Integrity Protocol 1735TLA top level aggregator 1736TLB translation lookaside buffer 1737TLD top level domain 1738TLER time-limited error recovery 1739TLI transport layer interface 1740TLS thread local storage 1741TLS transport layer security 1742TLV type, length, value 1743TM Turing machine 1744TM thermal monitor 1745TMDS transition minimized differential signaling 1746TMG transmogrifier 1747TMO timeout 1748TOD time of day 1749TOE TCP offload engine 1750TOFU trust on first use 1751TOS terms of service 1752TOS trusted operating system 1753TOS type of service 1754TOTP time-based one time password 1755TP transaction processing 1756TPI tracks per inch 1757TPM transactions per minute 1758TPM trusted platform module 1759TPR task priority register 1760TPS transactions per second 1761TPS transmission parameters signaling 1762TR task register 1763TR token ring 1764TRL timing recovery loop 1765TRNG true random number generator 1766TS terminal services 1767TS time series 1768TS time stamp 1769TS transport stream 1770TSAN Thread Sanitizer 1771TSC time stamp counter 1772TSD time stamp disable 1773TSDB time series database 1774TSL test, set, lock 1775TSO TCP segmentation offload 1776TSO Total Store Ordering 1777TSO time sharing option 1778TSP Time-Stamp Protocol 1779TSP Tunnel Setup Protocol 1780TSP time synchronization protocol 1781TSP traveling salesman problem 1782TSS task state segment 1783TSV tab-separated values 1784TSX transaction synchronization extensions (Intel) 1785TTL time to live 1786TTL transistor-transistor logic 1787TTM translation table maps 1788TTY teletype 1789TU translation unit 1790TUI {terminal,text-based,textual} user interface 1791TX {transmit out,transmitter} 1792TXG transaction group 1793TZ time zone 1794UAC user {access,account} control 1795UAF use-after-free 1796UART universal asynchronous receiver/transmitter 1797UAT user acceptance testing 1798UB undefined behavior 1799UBSAN Undefined Behavior Sanitizer 1800UC uncacheable 1801UCS unified computing system 1802UCS uniform-cost search 1803UCS universal coded character set 1804UDI uniform driver interface 1805UDMA ultra DMA 1806UDO ultra density optical 1807UDP User Datagram Protocol 1808UDS Unix Domain Socket 1809UEFI unified extensible firmware interface 1810UFO UDP fragmentation offload 1811UFS Unix File System 1812UGA universal graphics adapter 1813UI unit interval 1814UI user interface 1815UICC universal integrated circuit card 1816UID unique identifier 1817UID user identifier 1818UL upload 1819UMA uniform memory access 1820UMA upper memory area 1821UMB upper memory block 1822UML unified modeling language 1823UMPC ultra-mobile PC 1824UPNP universal plug and play 1825UPS uninterruptible power supply 1826URI uniform resource identifier 1827URL uniform resource locator 1828URN uniform resource name 1829USART universal synchronous/asynchronous receiver/transmitter 1830USB universal serial bus 1831USWC uncacheable speculative write combining 1832UT unit test 1833UTC coordinated universal time 1834UTF unicode transformation formats 1835UTP unshielded twisted pair 1836UTS UNIX time-sharing 1837UUCP Unix-to-Unix Copy Protocol 1838UUID universally unique identifier 1839UUOC useless use of cat 1840UUT unit under test 1841UX user experience 1842VA vertical alignment 1843VA virtual address 1844VA volt-ampere 1845VAX virtual address extension 1846VB Visual Basic 1847VBR volume boot record 1848VCA variable-gain amplifier 1849VCC common collector voltage 1850VCCP virtual chassis control protocol 1851VCF voltage-controlled filter 1852VCM virtual channel memory 1853VCO voltage-controlled oscillator 1854VCP virtual chassis port 1855VCS version control system 1856VDP vulnerability disclosure policy 1857VDPAU Video Decode and Presentation API for Unix 1858VES virtual execution system 1859VESA Video Electronics Standards Association 1860VFO variable-frequency oscillator 1861VFS virtual file system 1862VG volume group 1863VGA Video Graphics Array 1864VHD virtual hard disk 1865VHDCI very high density cable interconnect 1866VID {VLAN,voltage level} identifier 1867VIM Vi IMproved 1868VIPT virtually indexed, physically tagged 1869VIVT virtually indexed, virtually tagged 1870VLAN virtual local area network 1871VLD variable-length decoding 1872VLIW very long instruction word 1873VLSI very large scale integration 1874VLSM variable length subnet mask 1875VM virtual {machine,memory} 1876VME virtual mode extension 1877VMX vector multimedia extensions 1878VMX virtual machine extensions 1879VNC virtual network computing 1880VNI virtual network identifier 1881VOD video on demand 1882VPD vital product data 1883VPN virtual private network 1884VPWS virtual private wire service 1885VR virtual reality 1886VRAM video random access memory 1887VRF virtual routing and forwarding 1888VRM voltage regulator module 1889VROC Virtual RAID On CPU 1890VRRP Virtual Router Redundancy Protocol 1891VSTP VLAN Spanning Tree Protocol 1892VTEP VXLAN tunnel endpoint 1893VTP VLAN Trunking Protocol 1894VXFS Veritas file system 1895VXLAN virtual extensible LAN 1896VXVM Veritas volume manager 1897W watt 1898W3C World Wide Web Consortium 1899WAFL write anywhere file layout 1900WAMP Web Application Messaging Protocol 1901WAN wide area network 1902WAP Wireless Application Protocol 1903WAP wireless access point 1904WDDM Windows Display Driver Model 1905WDM Wavelength Division Multiplexing 1906WDM Windows Driver Model 1907WDT watchdog timer 1908WEP Wired Equivalent Privacy 1909WFI wait for interrupt 1910WFQ weighted fair queuing 1911WH write hit 1912WHEA Windows hardware error architecture 1913WIFI wireless fidelity 1914WLAN wireless local area network 1915WM write miss 1916WMF Windows meta file 1917WMI Windows Management Instrumentation 1918WOL Wake-on-LAN 1919WOM Wake-on-Modem 1920WOR Wake-on-Ring 1921WORM write once read many 1922WP WordPerfect 1923WP word processor 1924WP write protect 1925WPA Wi-Fi Protected Access 1926WPA2 Wi-Fi Protected Access II 1927WPAD web proxy auto-discovery protocol 1928WPS Wi-Fi Protected Setup 1929WRAM window random access memory 1930WS web services 1931WTC write through caching 1932WTD weighted tail drop 1933WWAN wireless wide area network 1934WWW world wide web 1935WYSIAYG what you see is all you get 1936WYSIWYG what you see is what you get 1937XBAR crossbar 1938XDMCP X Display Manager control protocol 1939XER XML encoding rules 1940XGA Extended Graphics Array 1941XHR XMLHttpRequest 1942XIP execute in place 1943XML Extensible Markup Language 1944XMSS eXtended Merkle Signature Scheme 1945XNA XNA's not acronymed 1946XNS Xerox network systems 1947XOF eXtendable-Output Function 1948XOR exclusive or 1949XP extreme programming 1950XSI X/Open System Interface 1951XSL extensible stylesheet language 1952XSLT extensible stylesheet language transformations 1953XSS cross site scripting 1954XT extended technology 1955XTACACS extended terminal access controller access-control system 1956XTI X/Open transport interface 1957XUL XML user interface language 1958YACC yet another compiler compiler 1959YAML YAML ain't markup language 1960YANG yet another next generation 1961YAWPFAPR you are welcome; please file a problem report 1962YP Yellow Pages 1963YTD year to date 1964ZAP ZFS attribute processor 1965ZBR zone bit recording 1966ZFOD zero-filled on demand 1967ZFS zettabyte file system 1968ZIF zero insertion force 1969ZIFS zero insertion force socket 1970ZIL ZFS intent log 1971ZMA zone multicast address 1972ZOI zero one infinity 1973ZOI zone of influence 1974ZPL ZFS Posix layer 1975ZVOL ZFS Volume 1976