acronyms.comp revision 1.383
1$NetBSD: acronyms.comp,v 1.383 2023/12/07 16:03:32 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APEI ACPI platform error interface 72APFS Apple file system 73API application programming interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APT advanced persistent threat 79APU accelerated processing unit 80AQM active queue management 81ARAT always running APIC timer 82ARC Advanced RISC Computing 83ARC adaptive replacement cache 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR Apple software restore 108ASR address space register 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMIC bus master interface controller 163BMP basic multilingual plane 164BMP bitmap image file 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTB branch target buffer 201BTB board-to-board 202BTC bit test [and] complement 203BTM bus transport mechanism 204BTR bit test [and] reset 205BTS bit test [and] set 206BTS bug tracking system 207BUAG big ugly ASCII graphic 208BW bandwidth 209BWM block-write mode 210CA certificate authority 211CAC cryptographic access control 212CACLS change access control lists 213CAD computer-aided design 214CAM computer assisted manufacturing 215CAM conditional access module 216CAM content addressable memory 217CAN controller area network 218CARP Common Address Redundancy Protocol 219CAS column address strobe 220CAS compare and swap 221CAS computer algebra system 222CASE computer aided software engineering 223CAU control access unit 224CAV constant angular velocity 225CBC cipher block chaining 226CBR constant bit rate 227CC carbon copy 228CCC Chaos Computer Club 229CCD charge coupled device 230CCI co-channel interferer 231CCNUMA cache-coherent non-uniform memory access 232CCTL command completion time limit 233CD cache disable 234CD compact disc 235CDDA compact disc digital audio 236CDL compiler description language 237CDMA code division multiple access 238CDN content delivery network 239CDP Cisco Discovery Protocol 240CDRAM cache dynamic random access memory 241CE customer edge 242CER canonical encoding rules 243CERT computer emergency response team 244CET control flow enforcement technology 245CF compact flash 246CFB cipher feedback 247CFG context-free grammar 248CFG control-flow graph 249CFI control-flow integrity 250CG control gate 251CGA Color Graphics Adapter 252CGI common gateway interface 253CGN Carrier-Grade NAT 254CHAP Challenge-Handshake Authentication Protocol 255CHFS chip file system 256CHS cylinder/head/sector 257CI continuous integration 258CI {common,component} interface 259CIA confidentiality, integrity, availability 260CIDR Classless Inter-Domain Routing 261CIF common intermediate format 262CIFS Common Internet File System 263CIL common intermediate language 264CIR carrier-to-interference ratio 265CIS contact image sensor 266CISC complex instruction set {computer,computing} 267CJK Chinese, Japanese, [and] Korean 268CLF common log format 269CLI command line interface 270CLI common language infrastructure 271CLR common language runtime 272CLS common language specification 273CLTT closed loop thermal throttling 274CLUT color look-up table 275CLV constant linear velocity 276CM configuration management 277CMA concert multithread architecture 278CMC certificate management over CMS 279CMC chassis management controller 280CMC corrected machine check 281CMI control {management,method} interface 282CMOS complementary metal-oxide-semiconductor 283CMP chip multi-processing 284CMS content management system 285CMS cryptographic message syntax 286CMS {configuration,content,course} management system 287CMYK cyan magenta yellow black 288CN {common,canonical} name 289CNA CVE Numbering Authority 290CNC computer numerical control 291CNR carrier-to-noise ratio 292COA change of authority 293COF current operating frequency 294COFDM coded orthogonal frequency division multiplexing 295COFF common object file format 296COM component object model 297COM computer on module 298COMA cache-only memory architecture 299CORBA common object request broker architecture 300COS class of service 301COW copy-on-write 302CP continuous pilot 303CPA chosen-plaintext attack 304CPB core performance boost 305CPC central processor complex 306CPC cpu performance counters 307CPE common phase error 308CPE common platform enumeration 309CPER common platform error record 310CPG clock pulse generator 311CPI cycles per instruction 312CPL current privilege level 313CPLD complex programmable logic device 314CPP C preprocessor 315CPS characters per second 316CPS continuation-passing style 317CPT command pass through 318CPU central processing unit 319CR carriage return 320CRC cyclic redundancy check 321CRDT conflict-free replicated data type 322CRL carrier recovery loop 323CRLF carriage return line feed 324CRQC cryptanalytically relevant quantum computer 325CRT cathode ray tube 326CRTP curiously recurring template pattern 327CRUD create, read, update, and delete 328CS cable select 329CS chip select 330CS code segment 331CS computer science 332CSDL {common,conceptual} schema definition language 333CSI channel state information 334CSI common system interface 335CSIRT computer security incident response team 336CSMA carrier sense multiple access 337CSMA/CA carrier sense multiple access with collision avoidance 338CSMA/CD carrier sense multiple access with collision detection 339CSP communicating sequential processes 340CSP constrain satisfaction problems 341CSP content security policy 342CSP cryptographic service provider 343CSPM cloud security posture management 344CSR control [and] status registers 345CSRF cross-site request forgery 346CSRG Computer Systems Research Group 347CSS cascading style sheets 348CST common spanning tree 349CSU C start up 350CSV comma-separated values 351CTF compact c type format 352CTM close to metal 353CTR counter [mode] 354CTS clear to send 355CTS common type system 356CUA common user access 357CUT coordinated universal time 358CV control voltage 359CVE common vulnerabilities and exposures 360CVS Concurrent Versions System 361CVSS Common Vulnerability Scoring System 362DA destination address 363DAA distributed application architecture 364DAAP digital audio access protocol 365DAB digital audio broadcasting 366DAC digital [to] analog converter 367DAC discretionary access control 368DAD duplicate address detection 369DAE deterministic authenticated encryption 370DANE DNS-based Authentication of Named Entities 371DAO disk at once 372DAP Directory Access Protocol 373DAT digital audio tape 374DAT dynamic acceleration technology 375DB database 376DBA database administrator 377DBA dynamic bandwidth allocation 378DBB data bus buffer 379DBC design by contract 380DBL dynamic buffer limiting 381DBMS database management system 382DBS database server 383DC data center 384DC direct current 385DCC Direct Client-to-Client 386DCC direct cable connect 387DCD data carrier detect 388DCE data control equipment 389DCE distributed computing environment 390DCIM data center infrastructure management 391DCIM digital camera images 392DCL Digital Command Language 393DCOM distributed component object model 394DCOP Desktop COmmunication Protocol 395DCS data collection systems 396DCT discrete cosine transform 397DCU data cache unit 398DDC display data channel 399DDE dynamic data exchange 400DDI device drivers interface 401DDK device driver kit 402DDL data description language 403DDR double data rate 404DDS direct digital sound 405DDWG Digital Display Working Group 406DE debugging extensions 407DE desktop environment 408DEA data encryption algorithm 409DEC Digital Equipment Corporation 410DEK data encryption key 411DEP data execution prevention 412DER distinguished encoding rules 413DES Data Encryption Standard 414DF don't fragment 415DFA deterministic finite automaton 416DFC data flow control 417DFS depth first search 418DFS distributed file system 419DFSAN Data Flow Sanitizer 420DFT diagnostic function test 421DFT discrete Fourier transform 422DFZ default-free zone 423DGEMM double precision general matrix multiply 424DGL data generation language 425DH Diffie-Hellman 426DHCP Dynamic Host Configuration Protocol 427DIA dedicated Internet access 428DIB device independent bitmap 429DIFS distributed inter-frame space 430DIMM dual inline memory module 431DIRT design in real time 432DKI driver/kernel interface 433DL diode logic 434DL discrete logarithm 435DL download 436DLCI data link connection identifier 437DLE data link escape 438DLL dynamic link library 439DLNA digital living network alliance 440DLP discrete logarithm problem 441DMA direct memory access 442DMB data memory barrier (Arm) 443DMI desktop management interface 444DMS document management system 445DMT discrete multitone modulation 446DMU data management layer 447DNARD Digital network appliance reference design 448DND drag and drop 449DNLC directory name lookup cache 450DNS Domain Name System 451DNSBL Domain Name System Block List 452DNSSEC DNS Security Extensions 453DOE distributed object environment 454DOF data over fibre 455DOH DNS over HTTPS 456DOM document object model 457DOQ DNS over QUIC 458DOS denial of service 459DOS disk operating system 460DOT DNS over TLS 461DP DisplayPort 462DPAA data path acceleration architecture 463DPC deferred procedure call 464DPCM differential pulse code modulation 465DPD dead peer detection 466DPDK data plane development kit 467DPI deep packet inspection 468DPI dots per inch 469DPL descriptor privilege level 470DPS Display PostScript 471DPST display power savings technology 472DRAAS disaster recovery as a service 473DRAM dynamic random access memory 474DRBG deterministic random bit generator 475DRI direct rendering infrastructure 476DRM digital rights management 477DRM direct rendering manager 478DRN Discovery of Network-designated Resolvers 479DRRS display refresh rate switching 480DS debug store 481DS differentiated services 482DS9000 DeathStation 9000 483DS9K DeathStation 9000 484DSA digital signature algorithm 485DSAP destination service access point 486DSB data synchronization barrier (Arm) 487DSB double-sideband modulation 488DSCP differentiated services code point 489DSDT differentiated system descriptor table 490DSF device special file 491DSL dataset and snapshot layer 492DSL digital subscriber line 493DSL domain specific language 494DSLAM digital subscriber line access multiplexer 495DSN delivery status notification 496DSO dynamic shared object 497DSP digital signal processor 498DSSS direct sequence spread spectrum 499DTB device tree blob 500DTC device tree compiler 501DTD document type definition 502DTE data terminal equipment 503DTE dumb terminal emulator 504DTL diode-transistor logic 505DTLS datagram transport layer security 506DTS device tree source 507DTS digital thermal sensor 508DUT device under test 509DVB digital video broadcasting 510DVCS distributed version control system 511DVD digital versatile disc 512DVFS dynamic voltage and frequency scaling 513DVI Digital Visual Interface 514DVI device independent 515DVR digital video recorder 516DWARF Debugging With Attributed Record Formats 517E-XER extended XML encoding rules 518EABI embedded-application binary interface 519EAI Email Address Internationalization 520EAI Enterprise Application Integration 521EAP Extensible Authentication Protocol 522EAPOL EAP over Lan 523EAV entity-attribute-value model 524EAV ethernet audio/video bridging 525EBCDIC Extended Binary Coded Decimal Interchange Code 526EBDA Extended BIOS Data Area 527EBNF extended backus-naur form 528EBR extended boot record 529EC elliptic curve 530ECC elliptic curve cryptography 531ECC error correction code 532ECDH elliptic curve Diffie-Hellman 533ECDL elliptic curve discrete logarithm 534ECDLP elliptic curve discrete logarithm problem 535ECDSA elliptic curve digital signature algorithm 536ECL emitter-coupled logic 537ECN explicit congestion notification 538ECP enhanced capability port 539ECS enhanced chip set 540ECS extended configuration space 541EDAC error detection and correction 542EDAT enhanced dynamic acceleration technology 543EDGE explicit data graph execution 544EDID extended display identification data 545EDO extended data out 546EDS electronical data sheet 547EDSAC electronic delay storage automatic calculator 548EDVAC electronic discrete variable automatic computer 549EEE embrace, extend, extinguish 550EEE energy efficient ethernet 551EEPROM electrically erasable programmable read only memory 552EFI extensible firmware interface 553EFL emitter follower logic 554EFM eight to fourteen modulation 555EFS extent file system 556EGA Enhanced Graphics Adapter 557EGP exterior gateway protocol 558EH extension header 559EIDE enhanced IDE 560EINJ error injection table 561EISA extended industry standard architecture 562ELF executable and linking format 563ELS entry level system 564EMACS Editor MACroS 565EMI electro-magnetic interference 566EMP electro-magnetic pulse 567EMR electro-magnetic radiation 568ENIAC electronic numerical integrator and computer 569EOF end of file 570EOI end of interrupt 571EOIS end of interactive support 572EOL end of life 573EOL end of line 574EOT end of transmission 575EPIC explicitly parallel instruction computing 576EPP enhanced parallel port 577EPP extensible provisioning protocol (RFC5730) 578EPRML extended partial response, maximum likelihood 579EPROM erasable programmable read only memory 580EPT extended page tables 581ERC error recovery control 582ERD emergency recovery disk 583ERD entity relationship diagram 584ERE extended regular expression 585ERST error record serialization table 586ESAN Efficiency Sanitizer 587ESB enterprise service bus 588ESDI enhanced small disk interface 589ESDRAM enhanced synchronous dynamic random access memory 590ESI enclosure services interface 591ESS electronic switching system 592ESS extended service set 593ESSID extended service set identifier 594EST enhanced speedstep 595ETL extract, transform, load 596EU execution unit 597EULA end user license agreement 598EdDSA Edwards curve digital signature algorithm 599FAT file allocation table 600FBRAM frame buffer random access memory 601FCIF full common intermediate format 602FCL fiber channel loop 603FCS frame check sequence 604FDC floppy disk controller 605FDD floppy disk drive 606FDDI fiber distributed data interface 607FDE full disk encryption 608FDT flattened device tree 609FEA finite element analysis 610FEC forward error correction 611FET field-effect transistor 612FF finite field 613FF form feed 614FFDH finite-field Diffie-Hellman 615FFH functional fixed hardware 616FFI foreign function interface 617FFM focus follows mouse 618FFS Fast File System 619FFS find first set 620FFT fast Fourier transform 621FG floating gate 622FHRP first hop redundancy protocol 623FHSS frequency hop spread spectrum 624FID frequency identifier 625FIFO first in, first out 626FILO first in, last out 627FIPS Federal Information Processing Standards 628FIR fast infrared 629FLOPS floating [point] operations per second 630FLOSS free/libre/open source software 631FM frequency modulation 632FMR false match rate 633FOSS free/open source software 634FPGA field programmable gate array 635FPM fast page mode 636FPR floating point register 637FPU floating point unit 638FQDN fully qualified domain name 639FRR false rejection rate 640FRR Free Range Routing 641FRU field replaceable unit 642FS file system 643FSB front side bus 644FSCK file system check 645FSF Free Software Foundation 646FSK frequency shift keying 647FSM finite-state machine 648FTA fault tree analysis 649FTL flash translation layer 650FTP File Transfer Protocol 651FTPS File Transfer Protocol Secure 652FTTH fiber to the home 653FUS fast user switching 654FWH firmware hub 655FWS folding white space 656GAL generic array logic 657GARP generic attribute registration protocol 658GAS generic address structure 659GC garbage collector 660GCC GNU Compiler Collection 661GCM Galois counter mode 662GCR group-coded recording 663GDI Graphics Device Interface 664GDT global descriptor table 665GECOS general comprehensive operating supervisor 666GEM graphics environment manager 667GEM graphics execution manager 668GEMM general matrix multiply 669GENA general event notification architecture 670GHC Glasgow Haskell compiler 671GHES generic hardware error source 672GIC generic interrupt controller 673GID group identifier 674GIF graphics interchange format 675GLBP gateway load balancing protocol 676GMCH graphics and memory controller hub 677GNU GNU's Not Unix 678GOP graphics output protocol 679GOT global offset table 680GPE general purpose event 681GPF general protection fault 682GPG GNU Privacy Guard 683GPL [GNU] General Public License 684GPR general purpose register 685GPS generalized processor sharing 686GPT GUID partition table 687GPU graphics processing unit 688GR golden ratio 689GRE generic routing encapsulation 690GRO generic receive offload 691GSI global system interrupt 692GSO generic send offload 693GUI graphical user interface 694GUID globally unique identifier 695GUS Gravis UltraSound 696GVFS git virtual file system 697HA high availability 698HAL hardware abstraction layer 699HAT hashed array tree 700HATEOAS hypermedia as the engine of application state 701HBA host bus adapter 702HCC Home Cable Computer 703HCCA Home Cable Computer Adaptor 704HCF halt and catch fire 705HCI host controller interface 706HCI human-computer interaction 707HCL hardware compatibility list 708HDCP High-bandwidth Digital Content Protection 709HDD hard disk drive 710HDL hardware description language 711HDMI High-Definition Multimedia Interface 712HDTV high-definition television 713HECI host embedded controller interface 714HEST hardware error source table 715HEVC high efficiency video coding 716HF high frequency 717HFM highest frequency mode 718HFS hierarchical file system 719HID human interface device 720HKDF HMAC-based key derivation function 721HKP HTTP Keyserver Protocol 722HLE hardware lock elision (Intel) 723HLL high-level language 724HMA high memory area 725HMI human-machine interface 726HOOD hierarchical object oriented design 727HOTP HMAC-based one time password 728HP Hewlett-Packard 729HPC high performance computing 730HPD hot plug detection 731HPET high precision event timer 732HSM hardware security module 733HSM hierarchical storage management 734HSRP hot standby router protocol 735HT hyper-threading 736HTC hardware thermal control 737HTCC high temperature co-fired ceramic 738HTML HyperText Markup Language 739HTT hyper-threading technology 740HTTP Hypertext Transfer Protocol 741HTTPS Hypertext Transfer Protocol Secure 742HVDS High-Voltage Differential Signaling 743HVM hardware virtual machine 744HWASAN Hardware-assisted Address Sanitizer 745HZ Hertz 746I2O intelligent input/output 747IA information assurance 748IAAS infrastructure as a service 749IAB Internet Architecture Board 750IANA Internet Assigned Numbers Authority 751IBC iterated block cipher 752IBM International Business Machines 753IBPI international blinking pattern interpretation 754IBS instruction based sampling 755IBSS independent basic service set 756IBT indirect branch tracking 757IC integrated circuit 758ICA independent computer architecture 759ICACLS integrity control access control lists 760ICB Internet Citizen's Band 761ICE in-circuit emulator 762ICE internal compiler error 763ICH I/O controller hub 764ICMP Internet Control Message Protocol 765ICT information and communications technology 766ICW initialization command word 767IDA Intel dynamic acceleration 768IDCMP Intuition direct communication message port 769IDCT inverse discrete cosine transform 770IDE integrated development environment 771IDE integrated drive electronics 772IDPS intrusion detection [and] prevention system 773IDRP inter-domain routing protocol 774IDS intrusion detection system 775IDT interrupt descriptor table 776IE Internet Explorer 777IEC International Electrotechnical Commission 778IEEE Institute of Electrical and Electronics Engineers 779IESG Internet Engineering Steering Group 780IETF Internet Engineering Task Force 781IF intermediate frequency 782IFCM isochronous flow control mode 783IFF Interchange File Format 784IFS internal field separator 785IGD Internet gateway device 786IGMP Internet Group Management Protocol 787IGP interior gateway protocol 788IHV independent hardware vendor 789IKE Internet key exchange 790ILM internal loopback mode 791ILOM integrated lights-out management 792ILP instruction level parallelism 793IM instant messaging 794IMAP Internet Message Access Protocol 795IMC integrated memory controller 796IMCR interrupt mode configuration register 797IME input method editor 798IMR interrupt mask register 799IMS information management system 800IMSI international mobile subscriber identity 801INCITS InterNational Committee for Information Technology Standards 802INODE index node 803IO input/output 804IOCTL input/output control 805IOM input/output managers 806IOMMU input/output memory management unit 807IOT Internet of Things 808IP Internet Protocol 809IP intellectual property 810IPC instructions per cycle 811IPC interprocess communication 812IPCF interprocess communication facility 813IPE integrated programming environment 814IPI intelligent peripheral interface 815IPI interprocessor interrupt 816IPL Initial Program Load 817IPL Interrupt Priority Level 818IPMB Intelligent Platform Management Bus 819IPMI Intelligent Platform Management Interface 820IPNG Internet Protocol, Next Generation 821IPS in-plane switching 822IPS intrusion prevention system 823IPSEC Internet Protocol Security 824IR intermediate representation 825IRC Internet Relay Chat 826IRDA infrared data association 827IRDP ICMP Router Discovery Protocol 828IRQ interrupt request 829IRQL interrupt request level 830IRR interrupt request register 831IRTF Internet Research Task Force 832IS information system 833ISA industry standard architecture 834ISA instruction set architecture 835ISB instruction synchronization barrier (Arm) 836ISDN integrated services digital network 837ISE instant secure erase 838ISI inter-symbol interference 839ISL initial system load 840ISM industrial, scientific, [and] medical 841ISMS information system management system 842ISN initial serial number 843ISO International Standards Organization 844ISOC Internet Society 845ISP Internet service provider 846ISR in-service register 847ISR interrupt service routine 848IST internal spanning tree 849IST interrupt stack table 850ISV independent software vendor 851IT information technology 852ITB Intel Turbo Boost 853ITIL information technology infrastructure library 854ITP in-target probe 855ITSM IT service management 856IV initialization vector 857IVT interrupt vector table 858JBOD just a bunch of disks 859JCL Job Control Language 860JFET junction [gate] field-effect transistor 861JIT just in time 862JPEG Joint Photographic Experts Group 863JRE Java Runtime Environment 864JSON JavaScript Object Notation 865JTAG joint test action group 866KASAN Kernel Address Sanitizer 867KASLR kernel address space layout randomization 868KB keyboard 869KB kilobyte 870KBD keyboard 871KBD kilobaud 872KCS keyboard controller style 873KEK key encryption key 874KEM key encapsulation mechanism 875KLOC thousand lines of code 876KMS kernel-mode setting 877KPI kernel programming interface 878KVA kernel virtual address 879KVM kernel virtual machine 880KVM kernel virtual memory 881KVM keyboard, video, [and] mouse 882L2CAP link layer control and adaptation protocol 883LAG link aggregation group 884LAMP Linux Apache MySQL {Perl,PHP,Python} 885LAN local area network 886LAPIC local advanced programmable interrupt controller 887LAR load access rights 888LBA logical block addressing 889LBNF labeled backus-naur form 890LBS location-based service 891LCD liquid crystal display 892LCP link control protocol 893LDA local delivery agent 894LDAP Lightweight Directory Access Protocol 895LDR light-dependent resistor 896LDT local descriptor table 897LE logical extent 898LED light emitting diode 899LELL low energy link layer 900LER label edge router 901LF line feed 902LF low frequency 903LFM lowest frequency mode 904LFN long file names 905LFO low-frequency oscillation 906LFS log-structured file system 907LFU least frequently used 908LHP loop heat pipe 909LIF logical interchange format 910LIFO last in, first out 911LILO LInux LOader 912LILO last in, last out 913LINT local interrupt 914LIR local Internet registry 915LISP LISt Processor 916LISP Locator/ID Separation Protocol 917LKM {Linux,loadable} kernel module 918LKML Linux kernel mailing list 919LL load linked 920LL/SC load linked/store conditional 921LLC logical link control 922LLD low-level design 923LLDD low-level design document 924LLDP link layer discovery protocol 925LLF low level format 926LLMNR link-local multicast name resolution 927LLVM Low Level Virtual Machine 928LM long mode 929LMCE local machine check exception 930LMI local management interface 931LMM link management mode 932LMP link management protocol 933LNO loop nest optimization 934LOC lines of code 935LOM lights-out management 936LPC low pin count 937LPE Linux performance events 938LPS local positioning system 939LRC longitudinal redundancy check 940LRM left-to-right mark 941LRO Large Receive Offload 942LRO left-to-right override 943LRU least recently used 944LS link state 945LSAN Leak Sanitizer 946LSB Linux standards base 947LSB least significant {bit,byte} 948LSI large scale integration 949LSL load segment limit 950LSM log structured merge 951LSN Large Scale NAT 952LSN log sequence number 953LSO large send offload 954LSR label switch router 955LTCC low temperature co-fired ceramic 956LTO linear tape-open 957LTO link time optimization 958LTR left to right 959LTR letter(-sized paper) 960LTR load task register 961LTS long term support 962LUA Lua Uppercase Accident 963LUN logical unit number 964LV logical volume 965LVDS Low-Voltage Differential Signaling 966LVM logical volume management 967LVT local vector table 968LWP light-weight process 969LZSS Lempel Ziv Storer Szymanski 970LZW Lempel Ziv Welch 971MAB MAC authentication bypass 972MAC mandatory access control 973MAC message authentication {check,code} 974MAC {media,medium} access control 975MADT multiple APIC descriptor table 976MAMR microwave-assisted magnetic recording 977MB megabyte 978MBA multi-boot agent 979MBR master boot record 980MBS megabits per second 981MC memory controller 982MCA MicroChannel architecture 983MCA machine check architecture 984MCC multiversion concurrency control 985MCE machine check exception 986MCGA Multi-Color Graphics Array 987MCH memory controller hub 988MCLAG multi-chassis link aggregation group 989MCM multi-chip module 990MCQ memory controlled queue 991MD MiniDisc 992MD machine-dependent 993MD-SAL model-driven service abstraction layer 994MDA Monochrome Display Adapter 995MDA mail delivery agent 996MDC Management Data Clock 997MDI Medium Dependent Interface 998MDI-X Medium Dependent Interface Crossover 999MDIO Management Data Input/Output 1000MDMX MIPS Digital Media eXtension 1001MDRAM multibank dynamic random access memory 1002MDS microarchitectural data sampling 1003MESI modified, exclusive, shared, invalid 1004MFC Microsoft Foundation Classes 1005MFC merge from current 1006MFM modified frequency modulation 1007MFU most frequently used 1008MGCP media gateway control protocol 1009MHU message handling unit 1010MI machine interface 1011MI machine-independent 1012MIB management information base 1013MIC message integrity {check,code} 1014MID mobile Internet device 1015MIDI musical instrument digital interface 1016MIF management information format 1017MII media independent interface 1018MIM man in the middle 1019MIMD multiple instruction, multiple data 1020MIME Multipurpose Internet Mail Extensions 1021MIMO multiple input multiple output 1022MIPS Microprocessor without Interlocked Pipeline Stages 1023MIPS million instructions per second 1024MISD multiple instruction, single data 1025MIT Massachusetts Institute of Technology 1026MITM man in the middle 1027ML machine language 1028ML machine learning 1029ML mailing list 1030ML markup language 1031ML maximum likelihood 1032ML-KEM module-lattice based key-encapsulation mechanism 1033MLAG multi-chassis link aggregation group 1034MLC multi-level cell 1035MLD multicast listener discovery 1036MLHP micro loop heat pipe 1037MLIR multi-level intermediate representation 1038MLO MMC loader 1039MMC multi-media card 1040MMF multi-mode fiber 1041MMIC monolithic microwave integrated circuit 1042MMIO memory mapped input/output 1043MMORPG massive multiplayer online role playing game 1044MMRP multiple MAC registration protocol 1045MMU memory management unit 1046MMX matrix math extension 1047MMX multimedia extension 1048MMX multiple math extension 1049MO magneto-optical 1050MOESI modified, owned, exclusive, shared, invalid 1051MOF maximum operating frequency 1052MOSFET metal-oxide-semiconductor field-effect transistor 1053MOSI modified, owned, shared, invalid 1054MP multi-platform 1055MP multiplayer 1056MP {multiprocessing,multiprocessor} 1057MPEG moving picture experts group 1058MPI message passing interface 1059MPLS Multiprotocol Label Switching 1060MPP massively parallel processor 1061MPS memory pool system 1062MPS multiprocessor specification 1063MQTT Message Queuing Telemetry Transport 1064MR modem ready 1065MRO method resolution order 1066MRP multiple registration protocol 1067MRU most recently used 1068MS Microsoft 1069MSAN Memory Sanitizer 1070MSB most significant {bit,byte} 1071MSC message sequence chart 1072MSE mean square error 1073MSF minutes seconds frames 1074MSI message signaled interrupt 1075MSI modified, shared, invalid 1076MSR {machine state,model-specific} register 1077MSS maximum segment size 1078MSTP Multiple Spanning Tree Protocol 1079MT machine translation 1080MTA mail transfer agent 1081MTBF mean time between failures 1082MTP media transfer protocol 1083MTRR memory type range register 1084MTTF mean time to failure 1085MTU maximum transmission unit 1086MUA mail user agent 1087MUD multi-user domain 1088MVCC multiversion concurrency control 1089MVR multicast VLAN registration 1090MVRP multiple VLAN registration protocol 1091MWE module width encoding 1092MX mail exchange 1093NACK negative acknowledgement 1094NAK negative acknowledgement 1095NAN neighbor awareness networking 1096NAN not a number 1097NAPT Network Address Port Translation 1098NAS network attached storage 1099NAT network address translation 1100NAV network allocation vector 1101NC numerical control 1102NC-SI network controller sideband interface 1103NCO numerically-controlled oscillator 1104NCP Network Control Protocol 1105NCQ native command queuing 1106NCSI network connectivity status indicator 1107ND neighbor discovery 1108NDFA nondeterministic finite automaton 1109NDIS network driver interface specification 1110NE numeric error 1111NEWS Network extensible Window System 1112NFA nondeterministic finite automaton 1113NFC near-field communication 1114NFCI no functional change intended 1115NFS network file system 1116NFV network function virtualization 1117NHACP NABU HCCA Application Communication Protocol 1118NIA next instruction address 1119NIC network information center 1120NIC network interface card 1121NIDS network intrusion detection system 1122NIP network interface protocol 1123NIPS network intrusion prevention system 1124NIS network information service 1125NIST National Institute of Standards and Technology 1126NLS native language support 1127NMI non-maskable interrupt 1128NMR nonce-misuse resistance 1129NNTP Network News Transfer Protocol 1130NOC network operations center 1131NOP no operation 1132NOS network operating system 1133NP nondeterministic polynomial time 1134NRND not recommended for new designs 1135NRZ non-return to zero 1136NSA National Security Agency 1137NSA nation-state adversary 1138NSA no such agency 1139NTA negative trust anchor 1140NTM non-deterministic Turing machine 1141NTP Network Time Protocol 1142NUMA non-uniform memory access 1143NURBS non-uniform rational basis spline 1144NVMM NetBSD Virtual Machine Monitor 1145NVMM non-volatile main memory 1146NVRAM non-volatile random access memory 1147NW not write-through 1148NX no execute 1149OAEP optimal asymmetric encryption padding 1150OAM operations, administration, and {management,maintenance} 1151OBO off by one 1152OBOE off by one error 1153OCL object constraint language 1154OCR optical character recognition 1155ODBC Open Database Connectivity 1156ODCM on-demand clock modulation 1157ODE offline device environment 1158ODI open data-link interface 1159ODM object data manager 1160ODMR on-demand mail relay 1161ODT on-die termination 1162OEM original equipment manufacturer 1163OFB output feedback 1164OFDM orthogonal frequency division multiplexing 1165OFET organic field-effect transistor 1166OLAP online analytical processing 1167OLE object linking and embedding 1168OLTP online transaction processing 1169ONCE on-{chip,circuit} emulation 1170ONFI open nand flash interface 1171OO OpenOffice 1172OO object oriented 1173OOB out of band 1174OOE out of order execution 1175OOM out of memory 1176OOO OpenOffice.org 1177OOP object oriented programming 1178OOPS object oriented programming systems 1179OOSE object oriented software engineering 1180OPM operations per minute 1181OPS operations per second 1182OQL Object Query Language 1183ORB object request broker 1184ORM object-relational mapping 1185OS operating system 1186OSD object-based storage device 1187OSD open source definition 1188OSF open software foundation 1189OSI Open Source Initiative 1190OSI open systems interconnection 1191OSPF open shortest path first 1192OSPM OS power management 1193OSS open sound system 1194OSS open source software 1195OSVW operating system visible workarounds 1196OTP one time password 1197OTP open telecom platform 1198OU organizational unit 1199OUI organizationally unique identifier 1200OWASP Open Web Application Security Project 1201OWL Web Ontology Language 1202P2P PCI to PCI 1203P2P peer to peer 1204PA phase accumulator 1205PA physical address 1206PAAS platform as a service 1207PAC phase-amplitude converter 1208PAE physical address extension 1209PAGP port aggregation protocol 1210PAL phase alternating line 1211PAL programmable array logic 1212PAM pluggable authentication modules 1213PAM pulse amplitude modulation 1214PAP password authentication protocol 1215PAT page attribute table 1216PAT port address translation 1217PATA parallel ATA 1218PAX portable archive exchange 1219PBE pending break encoding 1220PBE programming by example 1221PBR partition boot record 1222PBX private branch exchange 1223PC personal computer 1224PC program counter 1225PCB Protocol Control Block 1226PCB printed circuit board 1227PCB process control block 1228PCBC propagating cipher block chaining 1229PCC Portable C Compiler 1230PCD page-level cache disable 1231PCE path computation element 1232PCE performance-monitor counter enable 1233PCEP Path Computation Element Protocol 1234PCH platform controller hub 1235PCI peripheral component interconnect 1236PCM phase change memory 1237PCM pulse code modulation 1238PCMCIA Personal Computer Memory Card International Association 1239PCP Port Control Protocol 1240PD public domain 1241PDA personal digital assistant 1242PDA pushdown automaton 1243PDAG propositional directed acyclic graph 1244PDB power distribution board 1245PDF portable document format 1246PDM pulse-duration modulation 1247PDN pull-down network 1248PDP page {descriptor,directory} page 1249PDS product data sheet 1250PDU protocol data unit 1251PE portable executable 1252PE protection enable 1253PE provider edge 1254PEAP Protected EAP 1255PECI platform environment control interface 1256PEP protocol extension protocol 1257PER packed encoding rules 1258PFS perfect forward secrecy 1259PGAS partitioned global address space 1260PGE page global enable 1261PGO profile guided optimization 1262PGP Pretty Good Privacy 1263PHB PCI host bridge 1264PHP PHP: Hypertext Preprocessor 1265PIC performance instrumentation counters 1266PIC position independent code 1267PIC programmable interrupt controller 1268PICNIC problem in chair, not in computer 1269PID process id 1270PIE position independent executable 1271PIL Priority Interrupt Level 1272PIM personal information manager 1273PIM platform-independent model 1274PIO programmed input/output 1275PIPT physically indexed, physically tagged 1276PIQ prefetch input queue 1277PIR private information retrieval 1278PIT programmable interrupt timer 1279PIV personal identity verification 1280PIX Private Internet eXchange 1281PKCS public-key cryptography standards 1282PKI public key infrastructure 1283PLC programmable logic controller 1284PLD programmable logic device 1285PLL phase locked loop 1286PLRU pseudo LRU 1287PLT procedure linkage table 1288PLTM package level thermal management 1289PM power management 1290PM {phase,pulse} modulation 1291PMC performance monitoring counters 1292PME power management event 1293PMEG page map entry group 1294PMI performance monitoring infrastructure 1295PMI platform management interrupt 1296PMIC power management integrated circuit 1297PMIO port-mapped input/output 1298PMT photo-multiplier tube 1299PMU performance monitoring units 1300PMU power management unit 1301PNG portable network graphics 1302PNP plug and play 1303POE power over ethernet 1304POF probability of failure 1305POP Post Office Protocol 1306POP power on password 1307POR plan of record 1308POSIX Portable Operating System Interface [for Unix] 1309POST power on self test 1310POTS plain old telephone system 1311POWER Performance Optimization With Enhanced RISC 1312POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1313PP pair programming 1314PPB PCI [to] PCI bridge 1315PPC Power Performance Computing 1316PPC PowerPC 1317PPI pixels per inch 1318PPM pages per minute 1319PPP Point-to-Point Protocol 1320PPPOA Point-to-Point Protocol over ATM 1321PPPOE Point-to-Point Protocol over Ethernet 1322PPR processor programming reference 1323PPT powerpoint 1324PPT punched paper tape 1325PPU physics processing unit 1326PQC post-quantum cryptography 1327PRAM Parameter RAM 1328PRBS pseudorandom bit sequence 1329PRF pseudorandom function [family] 1330PRG pseudorandom generator 1331PRML partial response, maximum likelihood 1332PRN pseudorandom {noise,number} 1333PRNG pseudorandom number generator 1334PROM programmable read only memory 1335PRP pseudorandom permutation 1336PRU Programmable Realtime Unit 1337PS PostScript 1338PSD power spectral density 1339PSE page size extensions 1340PSK phase shift keying 1341PSK pre-shared key 1342PSTN public switched telephone network 1343PSW program status word 1344PTE page table entry 1345PTLA pseudo top level aggregator 1346PTP page table page 1347PTV perceived target value 1348PU processing unit 1349PUC personal unblocking code 1350PUN physical unit number 1351PV physical volume 1352PVC permanent virtual circuit 1353PVG physical volume group 1354PVI protected-mode virtual interrupt 1355PVRST Per-VLAN rapid spanning tree 1356PVST Per-VLAN Spanning Tree 1357PWM pulse width modulation 1358PXE preboot execution environment 1359QA quality assurance 1360QAM quadrature amplitude modulation 1361QAM quality assurance management 1362QBE query by example 1363QC quality control 1364QCIF quarter common intermediate format 1365QDI quasi delay insensitive 1366QOI quality of implementation 1367QOI quick order interface 1368QOS quality of service 1369QUIC Quick UDP Internet Connections 1370QVL qualified vendor list 1371R/O read only 1372R/W read/write 1373RA receiver address 1374RA remote assistance 1375RA resource affinity 1376RA router advertisement 1377RAD rapid application development 1378RADIUS remote authentication dial-in user service 1379RAID redundant array of {independent,inexpensive} disks 1380RAII resource acquisition is initialization 1381RAM random access memory 1382RAS reliability, availability and serviceability 1383RAS remote access service 1384RAS restartable atomic sequence 1385RAS row address strobe 1386RAT register allocation table 1387RAT remote access trojan 1388RBF radial basis function 1389RBL real-time blackhole list 1390RBL reputation block list 1391RBNF routing backus-naur form 1392RBT red-black tree 1393RC release candidate 1394RC remote control 1395RC run commands 1396RCS Revision Control System 1397RCU read, copy, update 1398RDB Rigid Disk Block 1399RDBMS relational database management system 1400RDF Resource Description Framework 1401RDM relational data model 1402RDMA remote direct memory access 1403RDP remote desktop protocol 1404RDRAM Rambus DRAM 1405RE regular expression 1406REPL read, evaluate, print, loop 1407REST representational state transfer 1408RF radio frequency 1409RFB remote frame buffer 1410RFI radio frequency interference 1411RFO request for ownership 1412RFU reserved for future use 1413RGB red green blue 1414RGBA red green blue alpha 1415RGMII reduced gigabit media independent interface 1416RH read hit 1417RHEL Red Hat Enterprise Linux 1418RHL Red Hat Linux 1419RIB routing information base 1420RIFF Resource Interchange File Format 1421RIP Raster Image Processor 1422RIP Routing Information Protocol 1423RIR regional Internet registry 1424RISC reduced instruction set {computer,computing} 1425RKM ROM Kernel Manual 1426RLE run length encoding 1427RLL run length limited 1428RLO right-to-left override 1429RM read miss 1430RMCP Remote Management Control Protocol 1431RMI remote method invocation 1432RMO Relaxed Memory Ordering 1433RMPM rapid memory power management 1434RMS root mean square 1435RMW read, modify, write 1436RNG random number generator 1437ROA route origin authorization 1438ROM read only memory 1439ROP return-oriented programming 1440RPC remote procedure call 1441RPG Report Program Generator 1442RPKI resource PKI 1443RPL requested privilege level 1444RPM revolutions per minute 1445RPN reverse Polish notation 1446RPVST Rapid Per-VLAN Spanning Tree 1447RR random replacement 1448RR round robin 1449RS relay station 1450RSA Rivest, Shamir, [and] Adleman 1451RSC Receive Segment Coalescing 1452RSIP Realm Specific IP 1453RSN Robust Secure Network 1454RSS Receive Side Scaling 1455RSS really simple syndication 1456RSS residual sum of squares 1457RSTP Rapid Spanning Tree Protocol 1458RT real time 1459RTC real time clock 1460RTC real time computing 1461RTF rich text format 1462RTL register transfer language 1463RTL resistor-transistor logic 1464RTL right to left 1465RTM restricted transactional memory (Intel) 1466RTOS real time operating system 1467RTP Real-time Transport Protocol 1468RTS request to send 1469RTT round trip time 1470RTTI run-time type information 1471RUP rational unified process 1472RW Rabin-Williams 1473RWM read-write memory 1474RX {receive,receiver} 1475S/PDIF Sony/Philips Digital Interface Format 1476SA security advisory 1477SA security association 1478SA source address 1479SA structured analysis 1480SAAS software as a service 1481SABRE Semi-automated business research environment 1482SACD super audio compact disc 1483SAD security association database 1484SAF-TE SCSI accessed fault-tolerant enclosure 1485SAGE Semi-automated ground environment 1486SAL {service,system} abstraction layer 1487SAM serial access memory 1488SAM sum addressed memory 1489SAML security assertion markup language 1490SAN storage area network 1491SAP service access point 1492SAPIC streamlined advanced programmable interrupt controller 1493SASD structured analysis, structured design 1494SASI Shugart Associates System Interface 1495SASL simple authentication [and] security layer 1496SATA serial advanced technology attachment 1497SAX simple API for XML 1498SB sound blaster 1499SBSA server base system architecture 1500SBU standard build unit 1501SC store conditional 1502SCA source code analyzer 1503SCADA supervisory control and data acquisition 1504SCC single chip cloud 1505SCC source code control 1506SCCP skinny call control protocol 1507SCCS Source Code Control System 1508SCI scalable coherent interface 1509SCI system control interrupt 1510SCIM smart common input method 1511SCM software configuration management 1512SCM source code management 1513SCM storage-class memory 1514SCO synchronous connection orientated 1515SCP secure copy 1516SCP system control processor 1517SCPI system control and power interface 1518SCSI Small Computer System Interface 1519SCTP Stream Control Transmission Protocol 1520SDDC software defined data center 1521SDEI software delegated exception interface 1522SDI symbol deinterleave 1523SDK software development kit 1524SDL Simple Declarative Language 1525SDL Simple Direct-media Layer 1526SDLC {software,system,systems} development life cycle 1527SDN software defined networking 1528SDP Session Description Protocol 1529SDR software defined radio 1530SDRAM synchronous dynamic random access memory 1531SDS software defined storage 1532SDT syntax-directed translation 1533SEA synchronous external abort 1534SED self-encrypting drive 1535SED stream editor 1536SEGV segmentation violation 1537SEMB serial ATA enclosure management bridge 1538SEO search engine optimization 1539SES SCSI enclosure services 1540SFC sequential function chart 1541SFI simple firmware interface 1542SFI software fault isolation 1543SFP small form-factor pluggable 1544SFTP SSH File Transfer Protocol 1545SFTP Serial File Transfer Protocol 1546SFTP Simple File Transfer Protocol 1547SGI Silicon Graphics, Inc 1548SGI software generated interrupt 1549SGMII serial gigabit media independent interface 1550SGPIO serial general purpose input/output 1551SGRAM synchronous graphics random access memory 1552SHA secure hash algorithm 1553SICP structure and interpretation of computer programs 1554SIDH supersingular isogeny Diffie-Hellman 1555SIEM security information and event management 1556SIF source input format 1557SIFS short inter-frame space 1558SIM subscriber identity module 1559SIMD single instruction, multiple data 1560SIMM single inline memory module 1561SIP Session Initiation Protocol 1562SIR signal-to-interference ratio 1563SIR slow infrared 1564SIRT security incident response team 1565SISD single instruction, single data 1566SIV synthetic intialization vector 1567SLAAC stateless address auto-configuration 1568SLC single-level cell 1569SLDRAM synchronous-link dynamic random access memory 1570SLED single large expensive disk 1571SLI scalable link interface 1572SLI scan-line interleave 1573SLIC system license internal code 1574SLOC source lines of code 1575SLRU segmented LRU 1576SMA smart memory access 1577SMAF system management action field 1578SMAP Simple Mail Access Protocol 1579SMAP supervisor mode access prevention 1580SMART self-monitoring analysis and reporting technology 1581SMB Server Message Block 1582SMB system management bus 1583SMBIOS System Management BIOS 1584SMC system management controller 1585SMD storage module device 1586SMEP supervisor mode execution protection 1587SMF single mode fiber 1588SMI structure of management information 1589SMI system management interrupt 1590SMM system management mode 1591SMP serial management protocol 1592SMP symmetric multiprocessing 1593SMR shingled magnetic recording 1594SMR state machine replication 1595SMT simultaneous multithreading 1596SMTP Simple Mail Transfer Protocol 1597SMU system management unit 1598SNA systems network architecture 1599SNAP Sub-Network Access Protocol 1600SNIA Storage Networking Industry Association 1601SNMP Simple Network Management Protocol 1602SNR signal-to-noise ratio 1603SOA service oriented architecture 1604SOAP Simple Object Access Protocol 1605SOC security operations center 1606SOC system on chip 1607SOF start of frame 1608SOH start of header 1609SOHO small office/home office 1610SOL serial over LAN 1611SOM system on module 1612SP service pack 1613SP stack pointer 1614SPA storage pool allocator 1615SPAN switched port analyzer 1616SPARC scalable processor architecture 1617SPARQL SPARQL Protocol and RDF Query Language 1618SPD security policy database 1619SPD serial presence detect 1620SPDIF Sony/Philips digital interface format 1621SPI serial peripheral interface 1622SPI stateful packet inspection 1623SPIR standard portable intermediate representation 1624SPL secondary program loader 1625SPL spinlock 1626SPL system interrupt priority level 1627SPMD single process, multiple data 1628SPR special purpose register 1629SPT sectors per track 1630SQA software quality assurance 1631SQCIF sub quarter common intermediate format 1632SQL Structured Query Language 1633SRAM static random access memory 1634SRC sample rate conversion 1635SRP SCSI RDMA protocol 1636SRR shaped round robin 1637SRTP Secure Real-time Transport Protocol 1638SS self-snoop 1639SS stack segment 1640SSA static single assignment 1641SSAP source service access point 1642SSB single-sideband modulation 1643SSB speculative store bypass 1644SSBB speculative store bypass barrier (Arm) 1645SSBD speculative store bypass disable (Intel) 1646SSC spread spectrum clock 1647SSD solid state drive 1648SSE streaming SIMD extensions 1649SSFDC solid state floppy disc card 1650SSH secure shell 1651SSI server side includes 1652SSID service set identifier 1653SSL secure sockets layer 1654SSP stack smashing protection 1655SSRF server-side request forgery 1656SSTP secure socket tunneling protocol 1657STC software thermal control 1658STD state transition diagram 1659STEK session ticket encryption key 1660STM software transactional memory 1661STOMP Streaming Text Oriented Messaging Protocol 1662STP Spanning Tree Protocol 1663STP shielded twisted pair 1664STRG spanning tree root guard 1665SUN Stanford University Network 1666SUS Single Unix Specification 1667SUT system under test 1668SVC switched virtual circuit 1669SVG scalable vector graphics 1670SVGA Super Video Graphics Array 1671SVI {switch,switched} virtual interface 1672SVM secure virtual machine 1673SVM support vector machine 1674SVR System V Release 1675SVS Separate Virtual Space 1676SWF Shockwave Flash 1677SWIG simplified wrapper [and] interface generator 1678SYR symbol timing recovery 1679TA test assertion 1680TA transmitter address 1681TAA transactional asynchronous abort (Intel) 1682TACACS terminal access controller access-control system 1683TAI international atomic time 1684TAO track at once 1685TAOCP The Art of Computer Programming 1686TAP Test Anything Protocol 1687TAS test and set 1688TB terabyte 1689TBNF transitional backus-naur form 1690TCB trace capture buffer 1691TCB trusted computing base 1692TCC thermal control circuit 1693TCL tool command language 1694TCP Transmission Control Protocol 1695TCQ tagged command queueing 1696TDC time [to] digital converter 1697TDD test-driven development 1698TDD time division duplex 1699TDM time division multiplexing 1700TDMA time division multiple access 1701TDOA time difference of arrival 1702TDP thermal design {point,power} 1703TDR time-domain reflectometry 1704TECO Text Editor and Corrector 1705TEE Trusted Execution Environment 1706TFT thin film transistor 1707TFTP Trivial File Transfer Protocol 1708TIAS try it and see 1709TIFF tagged image file format 1710TITS try it to see 1711TK temporal key 1712TKIP Temporal Key Integrity Protocol 1713TLA top level aggregator 1714TLB translation lookaside buffer 1715TLD top level domain 1716TLER time-limited error recovery 1717TLI transport layer interface 1718TLS thread local storage 1719TLS transport layer security 1720TM Turing machine 1721TM thermal monitor 1722TMDS transition minimized differential signaling 1723TMG transmogrifier 1724TMO timeout 1725TOD time of day 1726TOE TCP offload engine 1727TOFU trust on first use 1728TOS terms of service 1729TOS trusted operating system 1730TOS type of service 1731TOTP time-based one time password 1732TP transaction processing 1733TPI tracks per inch 1734TPM transactions per minute 1735TPM trusted platform module 1736TPR task priority register 1737TPS transactions per second 1738TPS transmission parameters signaling 1739TR task register 1740TR token ring 1741TRL timing recovery loop 1742TRNG true random number generator 1743TS terminal services 1744TS time series 1745TS time stamp 1746TS transport stream 1747TSAN Thread Sanitizer 1748TSC time stamp counter 1749TSD time stamp disable 1750TSDB time series database 1751TSL test, set, lock 1752TSO TCP segmentation offload 1753TSO Total Store Ordering 1754TSO time sharing option 1755TSP Time-Stamp Protocol 1756TSP Tunnel Setup Protocol 1757TSP time synchronization protocol 1758TSP traveling salesman problem 1759TSS task state segment 1760TSV tab-separated values 1761TSX transaction synchronization extensions (Intel) 1762TTL time to live 1763TTL transistor-transistor logic 1764TTM translation table maps 1765TTY teletype 1766TU translation unit 1767TUI {terminal,text-based,textual} user interface 1768TX {transmit out,transmitter} 1769TXG transaction group 1770TZ time zone 1771UAC user {access,account} control 1772UAF use-after-free 1773UART universal asynchronous receiver/transmitter 1774UAT user acceptance testing 1775UB undefined behavior 1776UBSAN Undefined Behavior Sanitizer 1777UC uncacheable 1778UCS unified computing system 1779UCS uniform-cost search 1780UCS universal coded character set 1781UDI uniform driver interface 1782UDMA ultra DMA 1783UDO ultra density optical 1784UDP User Datagram Protocol 1785UDS Unix Domain Socket 1786UEFI unified extensible firmware interface 1787UFO UDP fragmentation offload 1788UFS Unix File System 1789UGA universal graphics adapter 1790UI unit interval 1791UI user interface 1792UICC universal integrated circuit card 1793UID unique identifier 1794UID user identifier 1795UL upload 1796UMA uniform memory access 1797UMA upper memory area 1798UMB upper memory block 1799UML unified modeling language 1800UMPC ultra-mobile PC 1801UPNP universal plug and play 1802UPS uninterruptible power supply 1803URI uniform resource identifier 1804URL uniform resource locator 1805URN uniform resource name 1806USART universal synchronous/asynchronous receiver/transmitter 1807USB universal serial bus 1808USWC uncacheable speculative write combining 1809UT unit test 1810UTC coordinated universal time 1811UTF unicode transformation formats 1812UTP unshielded twisted pair 1813UTS UNIX time-sharing 1814UUCP Unix-to-Unix Copy Protocol 1815UUID universally unique identifier 1816UUOC useless use of cat 1817UUT unit under test 1818UX user experience 1819VA vertical alignment 1820VA virtual address 1821VA volt-ampere 1822VAX virtual address extension 1823VB Visual Basic 1824VBR volume boot record 1825VCA variable-gain amplifier 1826VCC common collector voltage 1827VCCP virtual chassis control protocol 1828VCF voltage-controlled filter 1829VCM virtual channel memory 1830VCO voltage-controlled oscillator 1831VCP virtual chassis port 1832VCS version control system 1833VDP vulnerability disclosure policy 1834VDPAU Video Decode and Presentation API for Unix 1835VES virtual execution system 1836VESA Video Electronics Standards Association 1837VFO variable-frequency oscillator 1838VFS virtual file system 1839VG volume group 1840VGA Video Graphics Array 1841VHDCI very high density cable interconnect 1842VID {VLAN,voltage level} identifier 1843VIM Vi IMproved 1844VIPT virtually indexed, physically tagged 1845VIVT virtually indexed, virtually tagged 1846VLAN virtual local area network 1847VLD variable-length decoding 1848VLIW very long instruction word 1849VLSI very large scale integration 1850VLSM variable length subnet mask 1851VM virtual {machine,memory} 1852VME virtual mode extension 1853VMX vector multimedia extensions 1854VMX virtual machine extensions 1855VNC virtual network computing 1856VNI virtual network identifier 1857VOD video on demand 1858VPD vital product data 1859VPN virtual private network 1860VPWS virtual private wire service 1861VR virtual reality 1862VRAM video random access memory 1863VRF virtual routing and forwarding 1864VRM voltage regulator module 1865VROC Virtual RAID On CPU 1866VRRP Virtual Router Redundancy Protocol 1867VSTP VLAN Spanning Tree Protocol 1868VTEP VXLAN tunnel endpoint 1869VTP VLAN Trunking Protocol 1870VXFS Veritas file system 1871VXLAN virtual extensible LAN 1872VXVM Veritas volume manager 1873W watt 1874W3C World Wide Web Consortium 1875WAFL write anywhere file layout 1876WAMP Web Application Messaging Protocol 1877WAN wide area network 1878WAP Wireless Application Protocol 1879WAP wireless access point 1880WDDM Windows Display Driver Model 1881WDM Windows Driver Model 1882WDT watchdog timer 1883WEP Wired Equivalent Privacy 1884WFI wait for interrupt 1885WFQ weighted fair queuing 1886WH write hit 1887WHEA Windows hardware error architecture 1888WIFI wireless fidelity 1889WLAN wireless local area network 1890WM write miss 1891WMF Windows meta file 1892WMI Windows Management Instrumentation 1893WOL Wake-on-LAN 1894WOM Wake-on-Modem 1895WOR Wake-on-Ring 1896WORM write once read many 1897WP WordPerfect 1898WP word processor 1899WP write protect 1900WPA Wi-Fi Protected Access 1901WPA2 Wi-Fi Protected Access II 1902WPAD web proxy auto-discovery protocol 1903WPS Wi-Fi Protected Setup 1904WRAM window random access memory 1905WS web services 1906WTC write through caching 1907WTD weighted tail drop 1908WWAN wireless wide area network 1909WWW world wide web 1910WYSIAYG what you see is all you get 1911WYSIWYG what you see is what you get 1912XBAR crossbar 1913XDMCP X Display Manager control protocol 1914XER XML encoding rules 1915XGA Extended Graphics Array 1916XHR XMLHttpRequest 1917XIP execute in place 1918XML Extensible Markup Language 1919XNA XNA's not acronymed 1920XNS Xerox network systems 1921XOR exclusive or 1922XP extreme programming 1923XSI X/Open System Interface 1924XSL extensible stylesheet language 1925XSLT extensible stylesheet language transformations 1926XSS cross site scripting 1927XT extended technology 1928XTACACS extended terminal access controller access-control system 1929XTI X/Open transport interface 1930XUL XML user interface language 1931YACC yet another compiler compiler 1932YAML YAML ain't markup language 1933YANG yet another next generation 1934YAWPFAPR you are welcome; please file a problem report 1935YP Yellow Pages 1936YTD year to date 1937ZAP ZFS attribute processor 1938ZBR zone bit recording 1939ZFOD zero-filled on demand 1940ZFS zettabyte file system 1941ZIF zero insertion force 1942ZIFS zero insertion force socket 1943ZIL ZFS intent log 1944ZMA zone multicast address 1945ZOI zero one infinity 1946ZOI zone of influence 1947ZPL ZFS Posix layer 1948ZVOL ZFS Volume 1949