acronyms.comp revision 1.388
1$NetBSD: acronyms.comp,v 1.388 2024/01/29 16:31:53 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APEI ACPI platform error interface 72APFS Apple file system 73API application programming interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APT advanced persistent threat 79APU accelerated processing unit 80AQM active queue management 81ARAT always running APIC timer 82ARC Advanced RISC Computing 83ARC adaptive replacement cache 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR Apple software restore 108ASR address space register 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMIC bus master interface controller 163BMP basic multilingual plane 164BMP bitmap image file 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTB branch target buffer 201BTB board-to-board 202BTC bit test [and] complement 203BTM bus transport mechanism 204BTR bit test [and] reset 205BTS bit test [and] set 206BTS bug tracking system 207BUAG big ugly ASCII graphic 208BW bandwidth 209BWM block-write mode 210CA certificate authority 211CAC cryptographic access control 212CACLS change access control lists 213CAD computer-aided design 214CAM computer assisted manufacturing 215CAM conditional access module 216CAM content addressable memory 217CAN controller area network 218CARP Common Address Redundancy Protocol 219CAS column address strobe 220CAS compare and swap 221CAS computer algebra system 222CASE computer aided software engineering 223CAU control access unit 224CAV constant angular velocity 225CBC cipher block chaining 226CBR constant bit rate 227CC carbon copy 228CCC Chaos Computer Club 229CCD charge coupled device 230CCI co-channel interferer 231CCNUMA cache-coherent non-uniform memory access 232CCTL command completion time limit 233CD cache disable 234CD compact disc 235CDDA compact disc digital audio 236CDL compiler description language 237CDMA code division multiple access 238CDN content delivery network 239CDP Cisco Discovery Protocol 240CDRAM cache dynamic random access memory 241CE customer edge 242CER canonical encoding rules 243CERT computer emergency response team 244CET control flow enforcement technology 245CF compact flash 246CFB cipher feedback 247CFG context-free grammar 248CFG control-flow graph 249CFI control-flow integrity 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 580EPSS Exploit Prediction Scoring System 581EPT extended page tables 582ERC error recovery control 583ERD emergency recovery disk 584ERD entity relationship diagram 585ERE extended regular expression 586ERST error record serialization table 587ESAN Efficiency Sanitizer 588ESB enterprise service bus 589ESDI enhanced small disk interface 590ESDRAM enhanced synchronous dynamic random access memory 591ESI enclosure services interface 592ESS electronic switching system 593ESS extended service set 594ESSID extended service set identifier 595EST enhanced speedstep 596ETL extract, transform, load 597EU execution unit 598EULA end user license agreement 599EdDSA Edwards curve digital signature algorithm 600FAT file allocation table 601FBRAM frame buffer random access memory 602FCIF full common intermediate format 603FCL fiber channel loop 604FCS frame check sequence 605FDC floppy disk controller 606FDD floppy disk drive 607FDDI fiber distributed data interface 608FDE full disk encryption 609FDT flattened device tree 610FEA finite element analysis 611FEC forward error correction 612FET field-effect transistor 613FF finite field 614FF form feed 615FFDH finite-field Diffie-Hellman 616FFH functional fixed hardware 617FFI foreign function interface 618FFM focus follows mouse 619FFS Fast File System 620FFS find first set 621FFT fast Fourier transform 622FG floating gate 623FHRP first hop redundancy protocol 624FHSS frequency hop spread spectrum 625FID frequency identifier 626FIFO first in, first out 627FILO first in, last out 628FIPS Federal Information Processing Standards 629FIR fast infrared 630FLOPS floating [point] operations per second 631FLOSS free/libre/open source software 632FM frequency modulation 633FMR false match rate 634FOSS free/open source software 635FPGA field programmable gate array 636FPM fast page mode 637FPR floating point register 638FPU floating point unit 639FQDN fully qualified domain name 640FRR false rejection rate 641FRR Free Range Routing 642FRU field replaceable unit 643FS file system 644FSB front side bus 645FSCK file system check 646FSF Free Software Foundation 647FSK frequency shift keying 648FSM finite-state machine 649FTA fault tree analysis 650FTL flash translation layer 651FTP File Transfer Protocol 652FTPS File Transfer Protocol Secure 653FTTH fiber to the home 654FUS fast user switching 655FWH firmware hub 656FWS folding white space 657GAL generic array logic 658GARP generic attribute registration protocol 659GAS generic address structure 660GC garbage collector 661GCC GNU Compiler Collection 662GCM Galois counter mode 663GCR group-coded recording 664GDI Graphics Device Interface 665GDT global descriptor table 666GECOS general comprehensive operating supervisor 667GEM graphics environment manager 668GEM graphics execution manager 669GEMM general matrix multiply 670GENA general event notification architecture 671GHC Glasgow Haskell compiler 672GHES generic hardware error source 673GIC generic interrupt controller 674GID group identifier 675GIF graphics interchange format 676GLBP gateway load balancing protocol 677GMCH graphics and memory controller hub 678GNU GNU's Not Unix 679GOP graphics output protocol 680GOT global offset table 681GPE general purpose event 682GPF general protection fault 683GPG GNU Privacy Guard 684GPL [GNU] General Public License 685GPR general purpose register 686GPS generalized processor sharing 687GPT GUID partition table 688GPU graphics processing unit 689GR golden ratio 690GRE generic routing encapsulation 691GRO generic receive offload 692GSI global system interrupt 693GSO generic send offload 694GUI graphical user interface 695GUID globally unique identifier 696GUS Gravis UltraSound 697GVFS git virtual file system 698HA high availability 699HAL hardware abstraction layer 700HAT hashed array tree 701HATEOAS hypermedia as the engine of application state 702HBA host bus adapter 703HCC Home Cable Computer 704HCCA Home Cable Computer Adaptor 705HCF halt and catch fire 706HCI host controller interface 707HCI human-computer interaction 708HCL hardware compatibility list 709HDCP High-bandwidth Digital Content Protection 710HDD hard disk drive 711HDL hardware description language 712HDMI High-Definition Multimedia Interface 713HDTV high-definition television 714HECI host embedded controller interface 715HEST hardware error source table 716HEVC high efficiency video coding 717HF high frequency 718HFM highest frequency mode 719HFS hierarchical file system 720HID human interface device 721HKDF HMAC-based key derivation function 722HKP HTTP Keyserver Protocol 723HLE hardware lock elision (Intel) 724HLL high-level language 725HMA high memory area 726HMI human-machine interface 727HNDL harvest now, decrypt later 728HOOD hierarchical object oriented design 729HOTP HMAC-based one time password 730HP Hewlett-Packard 731HPC high performance computing 732HPD hot plug detection 733HPET high precision event timer 734HPKE hybrid public key encryption 735HSM hardware security module 736HSM hierarchical storage management 737HSRP hot standby router protocol 738HT hyper-threading 739HTC hardware thermal control 740HTCC high temperature co-fired ceramic 741HTML HyperText Markup Language 742HTT hyper-threading technology 743HTTP Hypertext Transfer Protocol 744HTTPS Hypertext Transfer Protocol Secure 745HVDS High-Voltage Differential Signaling 746HVM hardware virtual machine 747HWASAN Hardware-assisted Address Sanitizer 748HZ Hertz 749I2O intelligent input/output 750IA information assurance 751IAAS infrastructure as a service 752IAB Internet Architecture Board 753IANA Internet Assigned Numbers Authority 754IBC iterated block cipher 755IBM International Business Machines 756IBPI international blinking pattern interpretation 757IBS instruction based sampling 758IBSS independent basic service set 759IBT indirect branch tracking 760IC integrated circuit 761ICA independent computer architecture 762ICACLS integrity control access control lists 763ICB Internet Citizen's Band 764ICE in-circuit emulator 765ICE internal compiler error 766ICH I/O controller hub 767ICMP Internet Control Message Protocol 768ICT information and communications technology 769ICW initialization command word 770IDA Intel dynamic acceleration 771IDCMP Intuition direct communication message port 772IDCT inverse discrete cosine transform 773IDE integrated development environment 774IDE integrated drive electronics 775IDPS intrusion detection [and] prevention system 776IDRP inter-domain routing protocol 777IDS intrusion detection system 778IDT interrupt descriptor table 779IE Internet Explorer 780IEC International Electrotechnical Commission 781IEEE Institute of Electrical and Electronics Engineers 782IESG Internet Engineering Steering Group 783IETF Internet Engineering Task Force 784IF intermediate frequency 785IFCM isochronous flow control mode 786IFF Interchange File Format 787IFS internal field separator 788IGD Internet gateway device 789IGMP Internet Group Management Protocol 790IGP interior gateway protocol 791IHV independent hardware vendor 792IKE Internet key exchange 793IKM input keying material 794ILM internal loopback mode 795ILOM integrated lights-out management 796ILP instruction level parallelism 797IM instant messaging 798IMAP Internet Message Access Protocol 799IMC integrated memory controller 800IMCR interrupt mode configuration register 801IME input method editor 802IMR interrupt mask register 803IMS information management system 804IMSI international mobile subscriber identity 805INCITS InterNational Committee for Information Technology Standards 806INODE index node 807IO input/output 808IOCTL input/output control 809IOM input/output managers 810IOMMU input/output memory management unit 811IOT Internet of Things 812IP Internet Protocol 813IP intellectual property 814IPC instructions per cycle 815IPC interprocess communication 816IPCF interprocess communication facility 817IPE integrated programming environment 818IPI intelligent peripheral interface 819IPI interprocessor interrupt 820IPL Initial Program Load 821IPL Interrupt Priority Level 822IPMB Intelligent Platform Management Bus 823IPMI Intelligent Platform Management Interface 824IPNG Internet Protocol, Next Generation 825IPS in-plane switching 826IPS intrusion prevention system 827IPSEC Internet Protocol Security 828IR intermediate representation 829IRC Internet Relay Chat 830IRDA infrared data association 831IRDP ICMP Router Discovery Protocol 832IRQ interrupt request 833IRQL interrupt request level 834IRR interrupt request register 835IRTF Internet Research Task Force 836IS information system 837ISA industry standard architecture 838ISA instruction set architecture 839ISB instruction synchronization barrier (Arm) 840ISDN integrated services digital network 841ISE instant secure erase 842ISI inter-symbol interference 843ISL initial system load 844ISM industrial, scientific, [and] medical 845ISMS information system management system 846ISN initial serial number 847ISO International Standards Organization 848ISOC Internet Society 849ISP Internet service provider 850ISR in-service register 851ISR interrupt service routine 852IST internal spanning tree 853IST interrupt stack table 854ISV independent software vendor 855IT information technology 856ITB Intel Turbo Boost 857ITIL information technology infrastructure library 858ITP in-target probe 859ITSM IT service management 860IV initialization vector 861IVT interrupt vector table 862JBOD just a bunch of disks 863JCL Job Control Language 864JFET junction [gate] field-effect transistor 865JIT just in time 866JPEG Joint Photographic Experts Group 867JRE Java Runtime Environment 868JSON JavaScript Object Notation 869JTAG joint test action group 870KASAN Kernel Address Sanitizer 871KASLR kernel address space layout randomization 872KB keyboard 873KB kilobyte 874KBD keyboard 875KBD kilobaud 876KCS keyboard controller style 877KEK key encryption key 878KEM key encapsulation mechanism 879KLOC thousand lines of code 880KMS kernel-mode setting 881KPI kernel programming interface 882KVA kernel virtual address 883KVM kernel virtual machine 884KVM kernel virtual memory 885KVM keyboard, video, [and] mouse 886L2CAP link layer control and adaptation protocol 887LAG link aggregation group 888LAMP Linux Apache MySQL {Perl,PHP,Python} 889LAN local area network 890LAPIC local advanced programmable interrupt controller 891LAR load access rights 892LBA logical block addressing 893LBNF labeled backus-naur form 894LBS location-based service 895LCD liquid crystal display 896LCP link control protocol 897LDA local delivery agent 898LDAP Lightweight Directory Access Protocol 899LDR light-dependent resistor 900LDT local descriptor table 901LE logical extent 902LED light emitting diode 903LELL low energy link layer 904LER label edge router 905LF line feed 906LF low frequency 907LFM lowest frequency mode 908LFN long file names 909LFO low-frequency oscillation 910LFS log-structured file system 911LFU least frequently used 912LHP loop heat pipe 913LIF logical interchange format 914LIFO last in, first out 915LILO LInux LOader 916LILO last in, last out 917LINT local interrupt 918LIR local Internet registry 919LISP LISt Processor 920LISP Locator/ID Separation Protocol 921LKM {Linux,loadable} kernel module 922LKML Linux kernel mailing list 923LL load linked 924LL/SC load linked/store conditional 925LLC logical link control 926LLD low-level design 927LLDD low-level design document 928LLDP link layer discovery protocol 929LLF low level format 930LLMNR link-local multicast name resolution 931LLVM Low Level Virtual Machine 932LM long mode 933LMCE local machine check exception 934LMI local management interface 935LMM link management mode 936LMP link management protocol 937LNO loop nest optimization 938LOC lines of code 939LOM lights-out management 940LPC low pin count 941LPE Linux performance events 942LPS local positioning system 943LRC longitudinal redundancy check 944LRM left-to-right mark 945LRO Large Receive Offload 946LRO left-to-right override 947LRU least recently used 948LS link state 949LSAN Leak Sanitizer 950LSB Linux standards base 951LSB least significant {bit,byte} 952LSI large scale integration 953LSL load segment limit 954LSM log structured merge 955LSN Large Scale NAT 956LSN log sequence number 957LSO large send offload 958LSR label switch router 959LTCC low temperature co-fired ceramic 960LTO linear tape-open 961LTO link time optimization 962LTR left to right 963LTR letter(-sized paper) 964LTR load task register 965LTS long term support 966LUA Lua Uppercase Accident 967LUN logical unit number 968LV logical volume 969LVDS Low-Voltage Differential Signaling 970LVM logical volume management 971LVT local vector table 972LWP light-weight process 973LZSS Lempel Ziv Storer Szymanski 974LZW Lempel Ziv Welch 975MAB MAC authentication bypass 976MAC mandatory access control 977MAC message authentication {check,code} 978MAC {media,medium} access control 979MADT multiple APIC descriptor table 980MAMR microwave-assisted magnetic recording 981MB megabyte 982MBA multi-boot agent 983MBR master boot record 984MBS megabits per second 985MC memory controller 986MCA MicroChannel architecture 987MCA machine check architecture 988MCC multiversion concurrency control 989MCE machine check exception 990MCGA Multi-Color Graphics Array 991MCH memory controller hub 992MCLAG multi-chassis link aggregation group 993MCM multi-chip module 994MCQ memory controlled queue 995MD MiniDisc 996MD machine-dependent 997MD-SAL model-driven service abstraction layer 998MDA Monochrome Display Adapter 999MDA mail delivery agent 1000MDC Management Data Clock 1001MDI Medium Dependent Interface 1002MDI-X Medium Dependent Interface Crossover 1003MDIO Management Data Input/Output 1004MDMX MIPS Digital Media eXtension 1005MDRAM multibank dynamic random access memory 1006MDS microarchitectural data sampling 1007MESI modified, exclusive, shared, invalid 1008MFC Microsoft Foundation Classes 1009MFC merge from current 1010MFM modified frequency modulation 1011MFU most frequently used 1012MGCP media gateway control protocol 1013MHU message handling unit 1014MI machine interface 1015MI machine-independent 1016MIB management information base 1017MIC message integrity {check,code} 1018MID mobile Internet device 1019MIDI musical instrument digital interface 1020MIF management information format 1021MII media independent interface 1022MIM man in the middle 1023MIMD multiple instruction, multiple data 1024MIME Multipurpose Internet Mail Extensions 1025MIMO multiple input multiple output 1026MIPS Microprocessor without Interlocked Pipeline Stages 1027MIPS million instructions per second 1028MISD multiple instruction, single data 1029MIT Massachusetts Institute of Technology 1030MITM man in the middle 1031ML machine language 1032ML machine learning 1033ML mailing list 1034ML markup language 1035ML maximum likelihood 1036ML-KEM module-lattice based key-encapsulation mechanism 1037MLAG multi-chassis link aggregation group 1038MLC multi-level cell 1039MLD multicast listener discovery 1040MLHP micro loop heat pipe 1041MLIR multi-level intermediate representation 1042MLO MMC loader 1043MMC multi-media card 1044MMF multi-mode fiber 1045MMIC monolithic microwave integrated circuit 1046MMIO memory mapped input/output 1047MMORPG massive multiplayer online role playing game 1048MMRP multiple MAC registration protocol 1049MMU memory management unit 1050MMX matrix math extension 1051MMX multimedia extension 1052MMX multiple math extension 1053MO magneto-optical 1054MOESI modified, owned, exclusive, shared, invalid 1055MOF maximum operating frequency 1056MOSFET metal-oxide-semiconductor field-effect transistor 1057MOSI modified, owned, shared, invalid 1058MP multi-platform 1059MP multiplayer 1060MP {multiprocessing,multiprocessor} 1061MPEG moving picture experts group 1062MPI message passing interface 1063MPLS Multiprotocol Label Switching 1064MPP massively parallel processor 1065MPS memory pool system 1066MPS multiprocessor specification 1067MQTT Message Queuing Telemetry Transport 1068MR modem ready 1069MRO method resolution order 1070MRP multiple registration protocol 1071MRU most recently used 1072MS Microsoft 1073MSAN Memory Sanitizer 1074MSB most significant {bit,byte} 1075MSC message sequence chart 1076MSE mean square error 1077MSF minutes seconds frames 1078MSI message signaled interrupt 1079MSI modified, shared, invalid 1080MSR {machine state,model-specific} register 1081MSS maximum segment size 1082MSTP Multiple Spanning Tree Protocol 1083MT machine translation 1084MTA mail transfer agent 1085MTBF mean time between failures 1086MTP media transfer protocol 1087MTRR memory type range register 1088MTTF mean time to failure 1089MTU maximum transmission unit 1090MUA mail user agent 1091MUD multi-user domain 1092MVCC multiversion concurrency control 1093MVR multicast VLAN registration 1094MVRP multiple VLAN registration protocol 1095MWE module width encoding 1096MX mail exchange 1097NACK negative acknowledgement 1098NAK negative acknowledgement 1099NAN neighbor awareness networking 1100NAN not a number 1101NAPT Network Address Port Translation 1102NAS network attached storage 1103NAT network address translation 1104NAV network allocation vector 1105NC numerical control 1106NC-SI network controller sideband interface 1107NCO numerically-controlled oscillator 1108NCP Network Control Protocol 1109NCQ native command queuing 1110NCSI network connectivity status indicator 1111ND neighbor discovery 1112NDFA nondeterministic finite automaton 1113NDIS network driver interface specification 1114NE numeric error 1115NEWS Network extensible Window System 1116NFA nondeterministic finite automaton 1117NFC near-field communication 1118NFCI no functional change intended 1119NFS network file system 1120NFV network function virtualization 1121NHACP NABU HCCA Application Communication Protocol 1122NIA next instruction address 1123NIC network information center 1124NIC network interface card 1125NIDS network intrusion detection system 1126NIP network interface protocol 1127NIPS network intrusion prevention system 1128NIS network information service 1129NIST National Institute of Standards and Technology 1130NLS native language support 1131NMI non-maskable interrupt 1132NMR nonce-misuse resistance 1133NNTP Network News Transfer Protocol 1134NOC network operations center 1135NOP no operation 1136NOS network operating system 1137NP nondeterministic polynomial time 1138NRND not recommended for new designs 1139NRZ non-return to zero 1140NSA National Security Agency 1141NSA nation-state adversary 1142NSA no such agency 1143NTA negative trust anchor 1144NTM non-deterministic Turing machine 1145NTP Network Time Protocol 1146NUMA non-uniform memory access 1147NURBS non-uniform rational basis spline 1148NVD National Vulnerability Database 1149NVMM NetBSD Virtual Machine Monitor 1150NVMM non-volatile main memory 1151NVRAM non-volatile random access memory 1152NW not write-through 1153NX no execute 1154OAEP optimal asymmetric encryption padding 1155OAM operations, administration, and {management,maintenance} 1156OBO off by one 1157OBOE off by one error 1158OCL object constraint language 1159OCR optical character recognition 1160ODBC Open Database Connectivity 1161ODCM on-demand clock modulation 1162ODE offline device environment 1163ODI open data-link interface 1164ODM object data manager 1165ODMR on-demand mail relay 1166ODT on-die termination 1167OEM original equipment manufacturer 1168OFB output feedback 1169OFDM orthogonal frequency division multiplexing 1170OFET organic field-effect transistor 1171OLAP online analytical processing 1172OLE object linking and embedding 1173OLTP online transaction processing 1174ONCE on-{chip,circuit} emulation 1175ONFI open nand flash interface 1176OO OpenOffice 1177OO object oriented 1178OOB out of band 1179OOE out of order execution 1180OOM out of memory 1181OOO OpenOffice.org 1182OOP object oriented programming 1183OOPS object oriented programming systems 1184OOSE object oriented software engineering 1185OPM operations per minute 1186OPS operations per second 1187OQL Object Query Language 1188ORB object request broker 1189ORM object-relational mapping 1190OS operating system 1191OSD object-based storage device 1192OSD open source definition 1193OSF open software foundation 1194OSI Open Source Initiative 1195OSI open systems interconnection 1196OSPF open shortest path first 1197OSPM OS power management 1198OSS open sound system 1199OSS open source software 1200OSVW operating system visible workarounds 1201OTP one time password 1202OTP open telecom platform 1203OU organizational unit 1204OUI organizationally unique identifier 1205OWASP Open Web Application Security Project 1206OWL Web Ontology Language 1207P2P PCI to PCI 1208P2P peer to peer 1209PA phase accumulator 1210PA physical address 1211PAAS platform as a service 1212PAC phase-amplitude converter 1213PAE physical address extension 1214PAGP port aggregation protocol 1215PAL phase alternating line 1216PAL programmable array logic 1217PAM pluggable authentication modules 1218PAM pulse amplitude modulation 1219PAP password authentication protocol 1220PAT page attribute table 1221PAT port address translation 1222PATA parallel ATA 1223PAX portable archive exchange 1224PBE pending break encoding 1225PBE programming by example 1226PBR partition boot record 1227PBX private branch exchange 1228PC personal computer 1229PC program counter 1230PCB Protocol Control Block 1231PCB printed circuit board 1232PCB process control block 1233PCBC propagating cipher block chaining 1234PCC Portable C Compiler 1235PCD page-level cache disable 1236PCE path computation element 1237PCE performance-monitor counter enable 1238PCEP Path Computation Element Protocol 1239PCH platform controller hub 1240PCI peripheral component interconnect 1241PCM phase change memory 1242PCM pulse code modulation 1243PCMCIA Personal Computer Memory Card International Association 1244PCP Port Control Protocol 1245PD public domain 1246PDA personal digital assistant 1247PDA pushdown automaton 1248PDAG propositional directed acyclic graph 1249PDB power distribution board 1250PDF portable document format 1251PDM pulse-duration modulation 1252PDN pull-down network 1253PDP page {descriptor,directory} page 1254PDS product data sheet 1255PDU protocol data unit 1256PE portable executable 1257PE protection enable 1258PE provider edge 1259PEAP Protected EAP 1260PECI platform environment control interface 1261PED PIN Entry Device 1262PEP protocol extension protocol 1263PER packed encoding rules 1264PFS perfect forward secrecy 1265PGAS partitioned global address space 1266PGE page global enable 1267PGO profile guided optimization 1268PGP Pretty Good Privacy 1269PHB PCI host bridge 1270PHP PHP: Hypertext Preprocessor 1271PIC performance instrumentation counters 1272PIC position independent code 1273PIC programmable interrupt controller 1274PICNIC problem in chair, not in computer 1275PID process id 1276PIE position independent executable 1277PIL Priority Interrupt Level 1278PIM personal information manager 1279PIM platform-independent model 1280PIO programmed input/output 1281PIPT physically indexed, physically tagged 1282PIQ prefetch input queue 1283PIR private information retrieval 1284PIT programmable interrupt timer 1285PIV personal identity verification 1286PIX Private Internet eXchange 1287PKCS public-key cryptography standards 1288PKE public key encryption 1289PKI public key infrastructure 1290PLC programmable logic controller 1291PLD programmable logic device 1292PLL phase locked loop 1293PLRU pseudo LRU 1294PLT procedure linkage table 1295PLTM package level thermal management 1296PM power management 1297PM {phase,pulse} modulation 1298PMC performance monitoring counters 1299PME power management event 1300PMEG page map entry group 1301PMI performance monitoring infrastructure 1302PMI platform management interrupt 1303PMIC power management integrated circuit 1304PMIO port-mapped input/output 1305PMT photo-multiplier tube 1306PMU performance monitoring units 1307PMU power management unit 1308PNG portable network graphics 1309PNP plug and play 1310POE power over ethernet 1311POF probability of failure 1312POP Post Office Protocol 1313POP power on password 1314POR plan of record 1315POSIX Portable Operating System Interface [for Unix] 1316POST power on self test 1317POTS plain old telephone system 1318POWER Performance Optimization With Enhanced RISC 1319POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1320PP pair programming 1321PPB PCI [to] PCI bridge 1322PPC Power Performance Computing 1323PPC PowerPC 1324PPI pixels per inch 1325PPM pages per minute 1326PPP Point-to-Point Protocol 1327PPPOA Point-to-Point Protocol over ATM 1328PPPOE Point-to-Point Protocol over Ethernet 1329PPR processor programming reference 1330PPT powerpoint 1331PPT punched paper tape 1332PPU physics processing unit 1333PQC post-quantum cryptography 1334PRAM Parameter RAM 1335PRBS pseudorandom bit sequence 1336PRF pseudorandom function [family] 1337PRG pseudorandom generator 1338PRML partial response, maximum likelihood 1339PRN pseudorandom {noise,number} 1340PRNG pseudorandom number generator 1341PROM programmable read only memory 1342PRP pseudorandom permutation 1343PRU Programmable Realtime Unit 1344PS PostScript 1345PSD power spectral density 1346PSE page size extensions 1347PSK phase shift keying 1348PSK pre-shared key 1349PSTN public switched telephone network 1350PSW program status word 1351PTE page table entry 1352PTLA pseudo top level aggregator 1353PTP page table page 1354PTV perceived target value 1355PU processing unit 1356PUC personal unblocking code 1357PUN physical unit number 1358PV physical volume 1359PVC permanent virtual circuit 1360PVG physical volume group 1361PVI protected-mode virtual interrupt 1362PVRST Per-VLAN rapid spanning tree 1363PVST Per-VLAN Spanning Tree 1364PWM pulse width modulation 1365PXE preboot execution environment 1366QA quality assurance 1367QAM quadrature amplitude modulation 1368QAM quality assurance management 1369QBE query by example 1370QC quality control 1371QCIF quarter common intermediate format 1372QDI quasi delay insensitive 1373QOI quality of implementation 1374QOI quick order interface 1375QOS quality of service 1376QUIC Quick UDP Internet Connections 1377QVL qualified vendor list 1378R/O read only 1379R/W read/write 1380RA receiver address 1381RA remote assistance 1382RA resource affinity 1383RA router advertisement 1384RAD rapid application development 1385RADIUS remote authentication dial-in user service 1386RAID redundant array of {independent,inexpensive} disks 1387RAII resource acquisition is initialization 1388RAM random access memory 1389RAS reliability, availability and serviceability 1390RAS remote access service 1391RAS restartable atomic sequence 1392RAS row address strobe 1393RAT register allocation table 1394RAT remote access trojan 1395RBF radial basis function 1396RBL real-time blackhole list 1397RBL reputation block list 1398RBNF routing backus-naur form 1399RBT red-black tree 1400RC release candidate 1401RC remote control 1402RC run commands 1403RCS Revision Control System 1404RCU read, copy, update 1405RDB Rigid Disk Block 1406RDBMS relational database management system 1407RDF Resource Description Framework 1408RDM relational data model 1409RDMA remote direct memory access 1410RDP remote desktop protocol 1411RDRAM Rambus DRAM 1412RE regular expression 1413REPL read, evaluate, print, loop 1414REST representational state transfer 1415RF radio frequency 1416RFB remote frame buffer 1417RFI radio frequency interference 1418RFO request for ownership 1419RFU reserved for future use 1420RGB red green blue 1421RGBA red green blue alpha 1422RGMII reduced gigabit media independent interface 1423RH read hit 1424RHEL Red Hat Enterprise Linux 1425RHL Red Hat Linux 1426RIB routing information base 1427RIFF Resource Interchange File Format 1428RIP Raster Image Processor 1429RIP Routing Information Protocol 1430RIR regional Internet registry 1431RISC reduced instruction set {computer,computing} 1432RKM ROM Kernel Manual 1433RLE run length encoding 1434RLL run length limited 1435RLO right-to-left override 1436RM read miss 1437RMCP Remote Management Control Protocol 1438RMI remote method invocation 1439RMO Relaxed Memory Ordering 1440RMPM rapid memory power management 1441RMS root mean square 1442RMW read, modify, write 1443RNG random number generator 1444ROA route origin authorization 1445ROM read only memory 1446ROP return-oriented programming 1447RPC remote procedure call 1448RPG Report Program Generator 1449RPKI resource PKI 1450RPL requested privilege level 1451RPM revolutions per minute 1452RPN reverse Polish notation 1453RPVST Rapid Per-VLAN Spanning Tree 1454RR random replacement 1455RR round robin 1456RS relay station 1457RSA Rivest, Shamir, [and] Adleman 1458RSC Receive Segment Coalescing 1459RSIP Realm Specific IP 1460RSN Robust Secure Network 1461RSS Receive Side Scaling 1462RSS really simple syndication 1463RSS residual sum of squares 1464RSTP Rapid Spanning Tree Protocol 1465RT real time 1466RTC real time clock 1467RTC real time computing 1468RTF rich text format 1469RTL register transfer language 1470RTL resistor-transistor logic 1471RTL right to left 1472RTM restricted transactional memory (Intel) 1473RTOS real time operating system 1474RTP Real-time Transport Protocol 1475RTS request to send 1476RTT round trip time 1477RTTI run-time type information 1478RUP rational unified process 1479RW Rabin-Williams 1480RWM read-write memory 1481RX {receive,receiver} 1482S/PDIF Sony/Philips Digital Interface Format 1483SA security advisory 1484SA security association 1485SA source address 1486SA structured analysis 1487SAAS software as a service 1488SABRE Semi-automated business research environment 1489SACD super audio compact disc 1490SAD security association database 1491SAF-TE SCSI accessed fault-tolerant enclosure 1492SAGE Semi-automated ground environment 1493SAL {service,system} abstraction layer 1494SAM serial access memory 1495SAM sum addressed memory 1496SAML security assertion markup language 1497SAN storage area network 1498SAP service access point 1499SAPIC streamlined advanced programmable interrupt controller 1500SASD structured analysis, structured design 1501SASI Shugart Associates System Interface 1502SASL simple authentication [and] security layer 1503SATA serial advanced technology attachment 1504SAX simple API for XML 1505SB sound blaster 1506SBSA server base system architecture 1507SBU standard build unit 1508SC store conditional 1509SCA source code analyzer 1510SCADA supervisory control and data acquisition 1511SCC single chip cloud 1512SCC source code control 1513SCCP skinny call control protocol 1514SCCS Source Code Control System 1515SCI scalable coherent interface 1516SCI system control interrupt 1517SCIM smart common input method 1518SCM software configuration management 1519SCM source code management 1520SCM storage-class memory 1521SCO synchronous connection orientated 1522SCP secure copy 1523SCP system control processor 1524SCPI system control and power interface 1525SCSI Small Computer System Interface 1526SCTP Stream Control Transmission Protocol 1527SDDC software defined data center 1528SDEI software delegated exception interface 1529SDI symbol deinterleave 1530SDK software development kit 1531SDL Simple Declarative Language 1532SDL Simple Direct-media Layer 1533SDLC {software,system,systems} development life cycle 1534SDN software defined networking 1535SDP Session Description Protocol 1536SDR software defined radio 1537SDRAM synchronous dynamic random access memory 1538SDS software defined storage 1539SDT syntax-directed translation 1540SEA synchronous external abort 1541SED self-encrypting drive 1542SED stream editor 1543SEGV segmentation violation 1544SEMB serial ATA enclosure management bridge 1545SEO search engine optimization 1546SES SCSI enclosure services 1547SFC sequential function chart 1548SFI simple firmware interface 1549SFI software fault isolation 1550SFP small form-factor pluggable 1551SFTP SSH File Transfer Protocol 1552SFTP Serial File Transfer Protocol 1553SFTP Simple File Transfer Protocol 1554SGI Silicon Graphics, Inc 1555SGI software generated interrupt 1556SGMII serial gigabit media independent interface 1557SGPIO serial general purpose input/output 1558SGRAM synchronous graphics random access memory 1559SHA secure hash algorithm 1560SICP structure and interpretation of computer programs 1561SIDH supersingular isogeny Diffie-Hellman 1562SIEM security information and event management 1563SIF source input format 1564SIFS short inter-frame space 1565SIM subscriber identity module 1566SIMD single instruction, multiple data 1567SIMM single inline memory module 1568SIP Session Initiation Protocol 1569SIR signal-to-interference ratio 1570SIR slow infrared 1571SIRT security incident response team 1572SISD single instruction, single data 1573SIV synthetic intialization vector 1574SLAAC stateless address auto-configuration 1575SLC single-level cell 1576SLDRAM synchronous-link dynamic random access memory 1577SLED single large expensive disk 1578SLI scalable link interface 1579SLI scan-line interleave 1580SLIC system license internal code 1581SLOC source lines of code 1582SLRU segmented LRU 1583SMA smart memory access 1584SMAF system management action field 1585SMAP Simple Mail Access Protocol 1586SMAP supervisor mode access prevention 1587SMART self-monitoring analysis and reporting technology 1588SMB Server Message Block 1589SMB system management bus 1590SMBIOS System Management BIOS 1591SMC system management controller 1592SMD storage module device 1593SMEP supervisor mode execution protection 1594SMF single mode fiber 1595SMI structure of management information 1596SMI system management interrupt 1597SMM system management mode 1598SMP serial management protocol 1599SMP symmetric multiprocessing 1600SMR shingled magnetic recording 1601SMR state machine replication 1602SMT simultaneous multithreading 1603SMTP Simple Mail Transfer Protocol 1604SMU system management unit 1605SNA systems network architecture 1606SNAP Sub-Network Access Protocol 1607SNIA Storage Networking Industry Association 1608SNMP Simple Network Management Protocol 1609SNR signal-to-noise ratio 1610SOA service oriented architecture 1611SOAP Simple Object Access Protocol 1612SOC security operations center 1613SOC system on chip 1614SOF start of frame 1615SOH start of header 1616SOHO small office/home office 1617SOL serial over LAN 1618SOM system on module 1619SP service pack 1620SP stack pointer 1621SPA storage pool allocator 1622SPAN switched port analyzer 1623SPARC scalable processor architecture 1624SPARQL SPARQL Protocol and RDF Query Language 1625SPD security policy database 1626SPD serial presence detect 1627SPDIF Sony/Philips digital interface format 1628SPI serial peripheral interface 1629SPI stateful packet inspection 1630SPIR standard portable intermediate representation 1631SPL secondary program loader 1632SPL spinlock 1633SPL system interrupt priority level 1634SPMD single process, multiple data 1635SPR special purpose register 1636SPT sectors per track 1637SQA software quality assurance 1638SQCIF sub quarter common intermediate format 1639SQL Structured Query Language 1640SRAM static random access memory 1641SRC sample rate conversion 1642SRP SCSI RDMA protocol 1643SRR shaped round robin 1644SRTP Secure Real-time Transport Protocol 1645SS self-snoop 1646SS stack segment 1647SSA static single assignment 1648SSAP source service access point 1649SSB single-sideband modulation 1650SSB speculative store bypass 1651SSBB speculative store bypass barrier (Arm) 1652SSBD speculative store bypass disable (Intel) 1653SSC spread spectrum clock 1654SSD solid state drive 1655SSE streaming SIMD extensions 1656SSFDC solid state floppy disc card 1657SSH secure shell 1658SSI server side includes 1659SSID service set identifier 1660SSL secure sockets layer 1661SSP stack smashing protection 1662SSRF server-side request forgery 1663SSTP secure socket tunneling protocol 1664STC software thermal control 1665STD state transition diagram 1666STEK session ticket encryption key 1667STM software transactional memory 1668STOMP Streaming Text Oriented Messaging Protocol 1669STP Spanning Tree Protocol 1670STP shielded twisted pair 1671STRG spanning tree root guard 1672SUN Stanford University Network 1673SUS Single Unix Specification 1674SUT system under test 1675SVC switched virtual circuit 1676SVG scalable vector graphics 1677SVGA Super Video Graphics Array 1678SVI {switch,switched} virtual interface 1679SVM secure virtual machine 1680SVM support vector machine 1681SVR System V Release 1682SVS Separate Virtual Space 1683SWF Shockwave Flash 1684SWIG simplified wrapper [and] interface generator 1685SYR symbol timing recovery 1686TA test assertion 1687TA transmitter address 1688TAA transactional asynchronous abort (Intel) 1689TACACS terminal access controller access-control system 1690TAI international atomic time 1691TAO track at once 1692TAOCP The Art of Computer Programming 1693TAP Test Anything Protocol 1694TAS test and set 1695TB terabyte 1696TBNF transitional backus-naur form 1697TCB trace capture buffer 1698TCB trusted computing base 1699TCC thermal control circuit 1700TCL tool command language 1701TCP Transmission Control Protocol 1702TCQ tagged command queueing 1703TDC time [to] digital converter 1704TDD test-driven development 1705TDD time division duplex 1706TDM time division multiplexing 1707TDMA time division multiple access 1708TDOA time difference of arrival 1709TDP thermal design {point,power} 1710TDR time-domain reflectometry 1711TECO Text Editor and Corrector 1712TEE Trusted Execution Environment 1713TFT thin film transistor 1714TFTP Trivial File Transfer Protocol 1715TIAS try it and see 1716TIFF tagged image file format 1717TITS try it to see 1718TK temporal key 1719TKIP Temporal Key Integrity Protocol 1720TLA top level aggregator 1721TLB translation lookaside buffer 1722TLD top level domain 1723TLER time-limited error recovery 1724TLI transport layer interface 1725TLS thread local storage 1726TLS transport layer security 1727TM Turing machine 1728TM thermal monitor 1729TMDS transition minimized differential signaling 1730TMG transmogrifier 1731TMO timeout 1732TOD time of day 1733TOE TCP offload engine 1734TOFU trust on first use 1735TOS terms of service 1736TOS trusted operating system 1737TOS type of service 1738TOTP time-based one time password 1739TP transaction processing 1740TPI tracks per inch 1741TPM transactions per minute 1742TPM trusted platform module 1743TPR task priority register 1744TPS transactions per second 1745TPS transmission parameters signaling 1746TR task register 1747TR token ring 1748TRL timing recovery loop 1749TRNG true random number generator 1750TS terminal services 1751TS time series 1752TS time stamp 1753TS transport stream 1754TSAN Thread Sanitizer 1755TSC time stamp counter 1756TSD time stamp disable 1757TSDB time series database 1758TSL test, set, lock 1759TSO TCP segmentation offload 1760TSO Total Store Ordering 1761TSO time sharing option 1762TSP Time-Stamp Protocol 1763TSP Tunnel Setup Protocol 1764TSP time synchronization protocol 1765TSP traveling salesman problem 1766TSS task state segment 1767TSV tab-separated values 1768TSX transaction synchronization extensions (Intel) 1769TTL time to live 1770TTL transistor-transistor logic 1771TTM translation table maps 1772TTY teletype 1773TU translation unit 1774TUI {terminal,text-based,textual} user interface 1775TX {transmit out,transmitter} 1776TXG transaction group 1777TZ time zone 1778UAC user {access,account} control 1779UAF use-after-free 1780UART universal asynchronous receiver/transmitter 1781UAT user acceptance testing 1782UB undefined behavior 1783UBSAN Undefined Behavior Sanitizer 1784UC uncacheable 1785UCS unified computing system 1786UCS uniform-cost search 1787UCS universal coded character set 1788UDI uniform driver interface 1789UDMA ultra DMA 1790UDO ultra density optical 1791UDP User Datagram Protocol 1792UDS Unix Domain Socket 1793UEFI unified extensible firmware interface 1794UFO UDP fragmentation offload 1795UFS Unix File System 1796UGA universal graphics adapter 1797UI unit interval 1798UI user interface 1799UICC universal integrated circuit card 1800UID unique identifier 1801UID user identifier 1802UL upload 1803UMA uniform memory access 1804UMA upper memory area 1805UMB upper memory block 1806UML unified modeling language 1807UMPC ultra-mobile PC 1808UPNP universal plug and play 1809UPS uninterruptible power supply 1810URI uniform resource identifier 1811URL uniform resource locator 1812URN uniform resource name 1813USART universal synchronous/asynchronous receiver/transmitter 1814USB universal serial bus 1815USWC uncacheable speculative write combining 1816UT unit test 1817UTC coordinated universal time 1818UTF unicode transformation formats 1819UTP unshielded twisted pair 1820UTS UNIX time-sharing 1821UUCP Unix-to-Unix Copy Protocol 1822UUID universally unique identifier 1823UUOC useless use of cat 1824UUT unit under test 1825UX user experience 1826VA vertical alignment 1827VA virtual address 1828VA volt-ampere 1829VAX virtual address extension 1830VB Visual Basic 1831VBR volume boot record 1832VCA variable-gain amplifier 1833VCC common collector voltage 1834VCCP virtual chassis control protocol 1835VCF voltage-controlled filter 1836VCM virtual channel memory 1837VCO voltage-controlled oscillator 1838VCP virtual chassis port 1839VCS version control system 1840VDP vulnerability disclosure policy 1841VDPAU Video Decode and Presentation API for Unix 1842VES virtual execution system 1843VESA Video Electronics Standards Association 1844VFO variable-frequency oscillator 1845VFS virtual file system 1846VG volume group 1847VGA Video Graphics Array 1848VHDCI very high density cable interconnect 1849VID {VLAN,voltage level} identifier 1850VIM Vi IMproved 1851VIPT virtually indexed, physically tagged 1852VIVT virtually indexed, virtually tagged 1853VLAN virtual local area network 1854VLD variable-length decoding 1855VLIW very long instruction word 1856VLSI very large scale integration 1857VLSM variable length subnet mask 1858VM virtual {machine,memory} 1859VME virtual mode extension 1860VMX vector multimedia extensions 1861VMX virtual machine extensions 1862VNC virtual network computing 1863VNI virtual network identifier 1864VOD video on demand 1865VPD vital product data 1866VPN virtual private network 1867VPWS virtual private wire service 1868VR virtual reality 1869VRAM video random access memory 1870VRF virtual routing and forwarding 1871VRM voltage regulator module 1872VROC Virtual RAID On CPU 1873VRRP Virtual Router Redundancy Protocol 1874VSTP VLAN Spanning Tree Protocol 1875VTEP VXLAN tunnel endpoint 1876VTP VLAN Trunking Protocol 1877VXFS Veritas file system 1878VXLAN virtual extensible LAN 1879VXVM Veritas volume manager 1880W watt 1881W3C World Wide Web Consortium 1882WAFL write anywhere file layout 1883WAMP Web Application Messaging Protocol 1884WAN wide area network 1885WAP Wireless Application Protocol 1886WAP wireless access point 1887WDDM Windows Display Driver Model 1888WDM Windows Driver Model 1889WDT watchdog timer 1890WEP Wired Equivalent Privacy 1891WFI wait for interrupt 1892WFQ weighted fair queuing 1893WH write hit 1894WHEA Windows hardware error architecture 1895WIFI wireless fidelity 1896WLAN wireless local area network 1897WM write miss 1898WMF Windows meta file 1899WMI Windows Management Instrumentation 1900WOL Wake-on-LAN 1901WOM Wake-on-Modem 1902WOR Wake-on-Ring 1903WORM write once read many 1904WP WordPerfect 1905WP word processor 1906WP write protect 1907WPA Wi-Fi Protected Access 1908WPA2 Wi-Fi Protected Access II 1909WPAD web proxy auto-discovery protocol 1910WPS Wi-Fi Protected Setup 1911WRAM window random access memory 1912WS web services 1913WTC write through caching 1914WTD weighted tail drop 1915WWAN wireless wide area network 1916WWW world wide web 1917WYSIAYG what you see is all you get 1918WYSIWYG what you see is what you get 1919XBAR crossbar 1920XDMCP X Display Manager control protocol 1921XER XML encoding rules 1922XGA Extended Graphics Array 1923XHR XMLHttpRequest 1924XIP execute in place 1925XML Extensible Markup Language 1926XNA XNA's not acronymed 1927XNS Xerox network systems 1928XOR exclusive or 1929XP extreme programming 1930XSI X/Open System Interface 1931XSL extensible stylesheet language 1932XSLT extensible stylesheet language transformations 1933XSS cross site scripting 1934XT extended technology 1935XTACACS extended terminal access controller access-control system 1936XTI X/Open transport interface 1937XUL XML user interface language 1938YACC yet another compiler compiler 1939YAML YAML ain't markup language 1940YANG yet another next generation 1941YAWPFAPR you are welcome; please file a problem report 1942YP Yellow Pages 1943YTD year to date 1944ZAP ZFS attribute processor 1945ZBR zone bit recording 1946ZFOD zero-filled on demand 1947ZFS zettabyte file system 1948ZIF zero insertion force 1949ZIFS zero insertion force socket 1950ZIL ZFS intent log 1951ZMA zone multicast address 1952ZOI zero one infinity 1953ZOI zone of influence 1954ZPL ZFS Posix layer 1955ZVOL ZFS Volume 1956