acronyms.comp revision 1.386
1$NetBSD: acronyms.comp,v 1.386 2024/01/18 03:33:08 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 727HOOD hierarchical object oriented design 728HOTP HMAC-based one time password 729HP Hewlett-Packard 730HPC high performance computing 731HPD hot plug detection 732HPET high precision event timer 733HSM hardware security module 734HSM hierarchical storage management 735HSRP hot standby router protocol 736HT hyper-threading 737HTC hardware thermal control 738HTCC high temperature co-fired ceramic 739HTML HyperText Markup Language 740HTT hyper-threading technology 741HTTP Hypertext Transfer Protocol 742HTTPS Hypertext Transfer Protocol Secure 743HVDS High-Voltage Differential Signaling 744HVM hardware virtual machine 745HWASAN Hardware-assisted Address Sanitizer 746HZ Hertz 747I2O intelligent input/output 748IA information assurance 749IAAS infrastructure as a service 750IAB Internet Architecture Board 751IANA Internet Assigned Numbers Authority 752IBC iterated block cipher 753IBM International Business Machines 754IBPI international blinking pattern interpretation 755IBS instruction based sampling 756IBSS independent basic service set 757IBT indirect branch tracking 758IC integrated circuit 759ICA independent computer architecture 760ICACLS integrity control access control lists 761ICB Internet Citizen's Band 762ICE in-circuit emulator 763ICE internal compiler error 764ICH I/O controller hub 765ICMP Internet Control Message Protocol 766ICT information and communications technology 767ICW initialization command word 768IDA Intel dynamic acceleration 769IDCMP Intuition direct communication message port 770IDCT inverse discrete cosine transform 771IDE integrated development environment 772IDE integrated drive electronics 773IDPS intrusion detection [and] prevention system 774IDRP inter-domain routing protocol 775IDS intrusion detection system 776IDT interrupt descriptor table 777IE Internet Explorer 778IEC International Electrotechnical Commission 779IEEE Institute of Electrical and Electronics Engineers 780IESG Internet Engineering Steering Group 781IETF Internet Engineering Task Force 782IF intermediate frequency 783IFCM isochronous flow control mode 784IFF Interchange File Format 785IFS internal field separator 786IGD Internet gateway device 787IGMP Internet Group Management Protocol 788IGP interior gateway protocol 789IHV independent hardware vendor 790IKE Internet key exchange 791IKM input keying material 792ILM internal loopback mode 793ILOM integrated lights-out management 794ILP instruction level parallelism 795IM instant messaging 796IMAP Internet Message Access Protocol 797IMC integrated memory controller 798IMCR interrupt mode configuration register 799IME input method editor 800IMR interrupt mask register 801IMS information management system 802IMSI international mobile subscriber identity 803INCITS InterNational Committee for Information Technology Standards 804INODE index node 805IO input/output 806IOCTL input/output control 807IOM input/output managers 808IOMMU input/output memory management unit 809IOT Internet of Things 810IP Internet Protocol 811IP intellectual property 812IPC instructions per cycle 813IPC interprocess communication 814IPCF interprocess communication facility 815IPE integrated programming environment 816IPI intelligent peripheral interface 817IPI interprocessor interrupt 818IPL Initial Program Load 819IPL Interrupt Priority Level 820IPMB Intelligent Platform Management Bus 821IPMI Intelligent Platform Management Interface 822IPNG Internet Protocol, Next Generation 823IPS in-plane switching 824IPS intrusion prevention system 825IPSEC Internet Protocol Security 826IR intermediate representation 827IRC Internet Relay Chat 828IRDA infrared data association 829IRDP ICMP Router Discovery Protocol 830IRQ interrupt request 831IRQL interrupt request level 832IRR interrupt request register 833IRTF Internet Research Task Force 834IS information system 835ISA industry standard architecture 836ISA instruction set architecture 837ISB instruction synchronization barrier (Arm) 838ISDN integrated services digital network 839ISE instant secure erase 840ISI inter-symbol interference 841ISL initial system load 842ISM industrial, scientific, [and] medical 843ISMS information system management system 844ISN initial serial number 845ISO International Standards Organization 846ISOC Internet Society 847ISP Internet service provider 848ISR in-service register 849ISR interrupt service routine 850IST internal spanning tree 851IST interrupt stack table 852ISV independent software vendor 853IT information technology 854ITB Intel Turbo Boost 855ITIL information technology infrastructure library 856ITP in-target probe 857ITSM IT service management 858IV initialization vector 859IVT interrupt vector table 860JBOD just a bunch of disks 861JCL Job Control Language 862JFET junction [gate] field-effect transistor 863JIT just in time 864JPEG Joint Photographic Experts Group 865JRE Java Runtime Environment 866JSON JavaScript Object Notation 867JTAG joint test action group 868KASAN Kernel Address Sanitizer 869KASLR kernel address space layout randomization 870KB keyboard 871KB kilobyte 872KBD keyboard 873KBD kilobaud 874KCS keyboard controller style 875KEK key encryption key 876KEM key encapsulation mechanism 877KLOC thousand lines of code 878KMS kernel-mode setting 879KPI kernel programming interface 880KVA kernel virtual address 881KVM kernel virtual machine 882KVM kernel virtual memory 883KVM keyboard, video, [and] mouse 884L2CAP link layer control and adaptation protocol 885LAG link aggregation group 886LAMP Linux Apache MySQL {Perl,PHP,Python} 887LAN local area network 888LAPIC local advanced programmable interrupt controller 889LAR load access rights 890LBA logical block addressing 891LBNF labeled backus-naur form 892LBS location-based service 893LCD liquid crystal display 894LCP link control protocol 895LDA local delivery agent 896LDAP Lightweight Directory Access Protocol 897LDR light-dependent resistor 898LDT local descriptor table 899LE logical extent 900LED light emitting diode 901LELL low energy link layer 902LER label edge router 903LF line feed 904LF low frequency 905LFM lowest frequency mode 906LFN long file names 907LFO low-frequency oscillation 908LFS log-structured file system 909LFU least frequently used 910LHP loop heat pipe 911LIF logical interchange format 912LIFO last in, first out 913LILO LInux LOader 914LILO last in, last out 915LINT local interrupt 916LIR local Internet registry 917LISP LISt Processor 918LISP Locator/ID Separation Protocol 919LKM {Linux,loadable} kernel module 920LKML Linux kernel mailing list 921LL load linked 922LL/SC load linked/store conditional 923LLC logical link control 924LLD low-level design 925LLDD low-level design document 926LLDP link layer discovery protocol 927LLF low level format 928LLMNR link-local multicast name resolution 929LLVM Low Level Virtual Machine 930LM long mode 931LMCE local machine check exception 932LMI local management interface 933LMM link management mode 934LMP link management protocol 935LNO loop nest optimization 936LOC lines of code 937LOM lights-out management 938LPC low pin count 939LPE Linux performance events 940LPS local positioning system 941LRC longitudinal redundancy check 942LRM left-to-right mark 943LRO Large Receive Offload 944LRO left-to-right override 945LRU least recently used 946LS link state 947LSAN Leak Sanitizer 948LSB Linux standards base 949LSB least significant {bit,byte} 950LSI large scale integration 951LSL load segment limit 952LSM log structured merge 953LSN Large Scale NAT 954LSN log sequence number 955LSO large send offload 956LSR label switch router 957LTCC low temperature co-fired ceramic 958LTO linear tape-open 959LTO link time optimization 960LTR left to right 961LTR letter(-sized paper) 962LTR load task register 963LTS long term support 964LUA Lua Uppercase Accident 965LUN logical unit number 966LV logical volume 967LVDS Low-Voltage Differential Signaling 968LVM logical volume management 969LVT local vector table 970LWP light-weight process 971LZSS Lempel Ziv Storer Szymanski 972LZW Lempel Ziv Welch 973MAB MAC authentication bypass 974MAC mandatory access control 975MAC message authentication {check,code} 976MAC {media,medium} access control 977MADT multiple APIC descriptor table 978MAMR microwave-assisted magnetic recording 979MB megabyte 980MBA multi-boot agent 981MBR master boot record 982MBS megabits per second 983MC memory controller 984MCA MicroChannel architecture 985MCA machine check architecture 986MCC multiversion concurrency control 987MCE machine check exception 988MCGA Multi-Color Graphics Array 989MCH memory controller hub 990MCLAG multi-chassis link aggregation group 991MCM multi-chip module 992MCQ memory controlled queue 993MD MiniDisc 994MD machine-dependent 995MD-SAL model-driven service abstraction layer 996MDA Monochrome Display Adapter 997MDA mail delivery agent 998MDC Management Data Clock 999MDI Medium Dependent Interface 1000MDI-X Medium Dependent Interface Crossover 1001MDIO Management Data Input/Output 1002MDMX MIPS Digital Media eXtension 1003MDRAM multibank dynamic random access memory 1004MDS microarchitectural data sampling 1005MESI modified, exclusive, shared, invalid 1006MFC Microsoft Foundation Classes 1007MFC merge from current 1008MFM modified frequency modulation 1009MFU most frequently used 1010MGCP media gateway control protocol 1011MHU message handling unit 1012MI machine interface 1013MI machine-independent 1014MIB management information base 1015MIC message integrity {check,code} 1016MID mobile Internet device 1017MIDI musical instrument digital interface 1018MIF management information format 1019MII media independent interface 1020MIM man in the middle 1021MIMD multiple instruction, multiple data 1022MIME Multipurpose Internet Mail Extensions 1023MIMO multiple input multiple output 1024MIPS Microprocessor without Interlocked Pipeline Stages 1025MIPS million instructions per second 1026MISD multiple instruction, single data 1027MIT Massachusetts Institute of Technology 1028MITM man in the middle 1029ML machine language 1030ML machine learning 1031ML mailing list 1032ML markup language 1033ML maximum likelihood 1034ML-KEM module-lattice based key-encapsulation mechanism 1035MLAG multi-chassis link aggregation group 1036MLC multi-level cell 1037MLD multicast listener discovery 1038MLHP micro loop heat pipe 1039MLIR multi-level intermediate representation 1040MLO MMC loader 1041MMC multi-media card 1042MMF multi-mode fiber 1043MMIC monolithic microwave integrated circuit 1044MMIO memory mapped input/output 1045MMORPG massive multiplayer online role playing game 1046MMRP multiple MAC registration protocol 1047MMU memory management unit 1048MMX matrix math extension 1049MMX multimedia extension 1050MMX multiple math extension 1051MO magneto-optical 1052MOESI modified, owned, exclusive, shared, invalid 1053MOF maximum operating frequency 1054MOSFET metal-oxide-semiconductor field-effect transistor 1055MOSI modified, owned, shared, invalid 1056MP multi-platform 1057MP multiplayer 1058MP {multiprocessing,multiprocessor} 1059MPEG moving picture experts group 1060MPI message passing interface 1061MPLS Multiprotocol Label Switching 1062MPP massively parallel processor 1063MPS memory pool system 1064MPS multiprocessor specification 1065MQTT Message Queuing Telemetry Transport 1066MR modem ready 1067MRO method resolution order 1068MRP multiple registration protocol 1069MRU most recently used 1070MS Microsoft 1071MSAN Memory Sanitizer 1072MSB most significant {bit,byte} 1073MSC message sequence chart 1074MSE mean square error 1075MSF minutes seconds frames 1076MSI message signaled interrupt 1077MSI modified, shared, invalid 1078MSR {machine state,model-specific} register 1079MSS maximum segment size 1080MSTP Multiple Spanning Tree Protocol 1081MT machine translation 1082MTA mail transfer agent 1083MTBF mean time between failures 1084MTP media transfer protocol 1085MTRR memory type range register 1086MTTF mean time to failure 1087MTU maximum transmission unit 1088MUA mail user agent 1089MUD multi-user domain 1090MVCC multiversion concurrency control 1091MVR multicast VLAN registration 1092MVRP multiple VLAN registration protocol 1093MWE module width encoding 1094MX mail exchange 1095NACK negative acknowledgement 1096NAK negative acknowledgement 1097NAN neighbor awareness networking 1098NAN not a number 1099NAPT Network Address Port Translation 1100NAS network attached storage 1101NAT network address translation 1102NAV network allocation vector 1103NC numerical control 1104NC-SI network controller sideband interface 1105NCO numerically-controlled oscillator 1106NCP Network Control Protocol 1107NCQ native command queuing 1108NCSI network connectivity status indicator 1109ND neighbor discovery 1110NDFA nondeterministic finite automaton 1111NDIS network driver interface specification 1112NE numeric error 1113NEWS Network extensible Window System 1114NFA nondeterministic finite automaton 1115NFC near-field communication 1116NFCI no functional change intended 1117NFS network file system 1118NFV network function virtualization 1119NHACP NABU HCCA Application Communication Protocol 1120NIA next instruction address 1121NIC network information center 1122NIC network interface card 1123NIDS network intrusion detection system 1124NIP network interface protocol 1125NIPS network intrusion prevention system 1126NIS network information service 1127NIST National Institute of Standards and Technology 1128NLS native language support 1129NMI non-maskable interrupt 1130NMR nonce-misuse resistance 1131NNTP Network News Transfer Protocol 1132NOC network operations center 1133NOP no operation 1134NOS network operating system 1135NP nondeterministic polynomial time 1136NRND not recommended for new designs 1137NRZ non-return to zero 1138NSA National Security Agency 1139NSA nation-state adversary 1140NSA no such agency 1141NTA negative trust anchor 1142NTM non-deterministic Turing machine 1143NTP Network Time Protocol 1144NUMA non-uniform memory access 1145NURBS non-uniform rational basis spline 1146NVD National Vulnerability Database 1147NVMM NetBSD Virtual Machine Monitor 1148NVMM non-volatile main memory 1149NVRAM non-volatile random access memory 1150NW not write-through 1151NX no execute 1152OAEP optimal asymmetric encryption padding 1153OAM operations, administration, and {management,maintenance} 1154OBO off by one 1155OBOE off by one error 1156OCL object constraint language 1157OCR optical character recognition 1158ODBC Open Database Connectivity 1159ODCM on-demand clock modulation 1160ODE offline device environment 1161ODI open data-link interface 1162ODM object data manager 1163ODMR on-demand mail relay 1164ODT on-die termination 1165OEM original equipment manufacturer 1166OFB output feedback 1167OFDM orthogonal frequency division multiplexing 1168OFET organic field-effect transistor 1169OLAP online analytical processing 1170OLE object linking and embedding 1171OLTP online transaction processing 1172ONCE on-{chip,circuit} emulation 1173ONFI open nand flash interface 1174OO OpenOffice 1175OO object oriented 1176OOB out of band 1177OOE out of order execution 1178OOM out of memory 1179OOO OpenOffice.org 1180OOP object oriented programming 1181OOPS object oriented programming systems 1182OOSE object oriented software engineering 1183OPM operations per minute 1184OPS operations per second 1185OQL Object Query Language 1186ORB object request broker 1187ORM object-relational mapping 1188OS operating system 1189OSD object-based storage device 1190OSD open source definition 1191OSF open software foundation 1192OSI Open Source Initiative 1193OSI open systems interconnection 1194OSPF open shortest path first 1195OSPM OS power management 1196OSS open sound system 1197OSS open source software 1198OSVW operating system visible workarounds 1199OTP one time password 1200OTP open telecom platform 1201OU organizational unit 1202OUI organizationally unique identifier 1203OWASP Open Web Application Security Project 1204OWL Web Ontology Language 1205P2P PCI to PCI 1206P2P peer to peer 1207PA phase accumulator 1208PA physical address 1209PAAS platform as a service 1210PAC phase-amplitude converter 1211PAE physical address extension 1212PAGP port aggregation protocol 1213PAL phase alternating line 1214PAL programmable array logic 1215PAM pluggable authentication modules 1216PAM pulse amplitude modulation 1217PAP password authentication protocol 1218PAT page attribute table 1219PAT port address translation 1220PATA parallel ATA 1221PAX portable archive exchange 1222PBE pending break encoding 1223PBE programming by example 1224PBR partition boot record 1225PBX private branch exchange 1226PC personal computer 1227PC program counter 1228PCB Protocol Control Block 1229PCB printed circuit board 1230PCB process control block 1231PCBC propagating cipher block chaining 1232PCC Portable C Compiler 1233PCD page-level cache disable 1234PCE path computation element 1235PCE performance-monitor counter enable 1236PCEP Path Computation Element Protocol 1237PCH platform controller hub 1238PCI peripheral component interconnect 1239PCM phase change memory 1240PCM pulse code modulation 1241PCMCIA Personal Computer Memory Card International Association 1242PCP Port Control Protocol 1243PD public domain 1244PDA personal digital assistant 1245PDA pushdown automaton 1246PDAG propositional directed acyclic graph 1247PDB power distribution board 1248PDF portable document format 1249PDM pulse-duration modulation 1250PDN pull-down network 1251PDP page {descriptor,directory} page 1252PDS product data sheet 1253PDU protocol data unit 1254PE portable executable 1255PE protection enable 1256PE provider edge 1257PEAP Protected EAP 1258PECI platform environment control interface 1259PED PIN Entry Device 1260PEP protocol extension protocol 1261PER packed encoding rules 1262PFS perfect forward secrecy 1263PGAS partitioned global address space 1264PGE page global enable 1265PGO profile guided optimization 1266PGP Pretty Good Privacy 1267PHB PCI host bridge 1268PHP PHP: Hypertext Preprocessor 1269PIC performance instrumentation counters 1270PIC position independent code 1271PIC programmable interrupt controller 1272PICNIC problem in chair, not in computer 1273PID process id 1274PIE position independent executable 1275PIL Priority Interrupt Level 1276PIM personal information manager 1277PIM platform-independent model 1278PIO programmed input/output 1279PIPT physically indexed, physically tagged 1280PIQ prefetch input queue 1281PIR private information retrieval 1282PIT programmable interrupt timer 1283PIV personal identity verification 1284PIX Private Internet eXchange 1285PKCS public-key cryptography standards 1286PKI public key infrastructure 1287PLC programmable logic controller 1288PLD programmable logic device 1289PLL phase locked loop 1290PLRU pseudo LRU 1291PLT procedure linkage table 1292PLTM package level thermal management 1293PM power management 1294PM {phase,pulse} modulation 1295PMC performance monitoring counters 1296PME power management event 1297PMEG page map entry group 1298PMI performance monitoring infrastructure 1299PMI platform management interrupt 1300PMIC power management integrated circuit 1301PMIO port-mapped input/output 1302PMT photo-multiplier tube 1303PMU performance monitoring units 1304PMU power management unit 1305PNG portable network graphics 1306PNP plug and play 1307POE power over ethernet 1308POF probability of failure 1309POP Post Office Protocol 1310POP power on password 1311POR plan of record 1312POSIX Portable Operating System Interface [for Unix] 1313POST power on self test 1314POTS plain old telephone system 1315POWER Performance Optimization With Enhanced RISC 1316POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1317PP pair programming 1318PPB PCI [to] PCI bridge 1319PPC Power Performance Computing 1320PPC PowerPC 1321PPI pixels per inch 1322PPM pages per minute 1323PPP Point-to-Point Protocol 1324PPPOA Point-to-Point Protocol over ATM 1325PPPOE Point-to-Point Protocol over Ethernet 1326PPR processor programming reference 1327PPT powerpoint 1328PPT punched paper tape 1329PPU physics processing unit 1330PQC post-quantum cryptography 1331PRAM Parameter RAM 1332PRBS pseudorandom bit sequence 1333PRF pseudorandom function [family] 1334PRG pseudorandom generator 1335PRML partial response, maximum likelihood 1336PRN pseudorandom {noise,number} 1337PRNG pseudorandom number generator 1338PROM programmable read only memory 1339PRP pseudorandom permutation 1340PRU Programmable Realtime Unit 1341PS PostScript 1342PSD power spectral density 1343PSE page size extensions 1344PSK phase shift keying 1345PSK pre-shared key 1346PSTN public switched telephone network 1347PSW program status word 1348PTE page table entry 1349PTLA pseudo top level aggregator 1350PTP page table page 1351PTV perceived target value 1352PU processing unit 1353PUC personal unblocking code 1354PUN physical unit number 1355PV physical volume 1356PVC permanent virtual circuit 1357PVG physical volume group 1358PVI protected-mode virtual interrupt 1359PVRST Per-VLAN rapid spanning tree 1360PVST Per-VLAN Spanning Tree 1361PWM pulse width modulation 1362PXE preboot execution environment 1363QA quality assurance 1364QAM quadrature amplitude modulation 1365QAM quality assurance management 1366QBE query by example 1367QC quality control 1368QCIF quarter common intermediate format 1369QDI quasi delay insensitive 1370QOI quality of implementation 1371QOI quick order interface 1372QOS quality of service 1373QUIC Quick UDP Internet Connections 1374QVL qualified vendor list 1375R/O read only 1376R/W read/write 1377RA receiver address 1378RA remote assistance 1379RA resource affinity 1380RA router advertisement 1381RAD rapid application development 1382RADIUS remote authentication dial-in user service 1383RAID redundant array of {independent,inexpensive} disks 1384RAII resource acquisition is initialization 1385RAM random access memory 1386RAS reliability, availability and serviceability 1387RAS remote access service 1388RAS restartable atomic sequence 1389RAS row address strobe 1390RAT register allocation table 1391RAT remote access trojan 1392RBF radial basis function 1393RBL real-time blackhole list 1394RBL reputation block list 1395RBNF routing backus-naur form 1396RBT red-black tree 1397RC release candidate 1398RC remote control 1399RC run commands 1400RCS Revision Control System 1401RCU read, copy, update 1402RDB Rigid Disk Block 1403RDBMS relational database management system 1404RDF Resource Description Framework 1405RDM relational data model 1406RDMA remote direct memory access 1407RDP remote desktop protocol 1408RDRAM Rambus DRAM 1409RE regular expression 1410REPL read, evaluate, print, loop 1411REST representational state transfer 1412RF radio frequency 1413RFB remote frame buffer 1414RFI radio frequency interference 1415RFO request for ownership 1416RFU reserved for future use 1417RGB red green blue 1418RGBA red green blue alpha 1419RGMII reduced gigabit media independent interface 1420RH read hit 1421RHEL Red Hat Enterprise Linux 1422RHL Red Hat Linux 1423RIB routing information base 1424RIFF Resource Interchange File Format 1425RIP Raster Image Processor 1426RIP Routing Information Protocol 1427RIR regional Internet registry 1428RISC reduced instruction set {computer,computing} 1429RKM ROM Kernel Manual 1430RLE run length encoding 1431RLL run length limited 1432RLO right-to-left override 1433RM read miss 1434RMCP Remote Management Control Protocol 1435RMI remote method invocation 1436RMO Relaxed Memory Ordering 1437RMPM rapid memory power management 1438RMS root mean square 1439RMW read, modify, write 1440RNG random number generator 1441ROA route origin authorization 1442ROM read only memory 1443ROP return-oriented programming 1444RPC remote procedure call 1445RPG Report Program Generator 1446RPKI resource PKI 1447RPL requested privilege level 1448RPM revolutions per minute 1449RPN reverse Polish notation 1450RPVST Rapid Per-VLAN Spanning Tree 1451RR random replacement 1452RR round robin 1453RS relay station 1454RSA Rivest, Shamir, [and] Adleman 1455RSC Receive Segment Coalescing 1456RSIP Realm Specific IP 1457RSN Robust Secure Network 1458RSS Receive Side Scaling 1459RSS really simple syndication 1460RSS residual sum of squares 1461RSTP Rapid Spanning Tree Protocol 1462RT real time 1463RTC real time clock 1464RTC real time computing 1465RTF rich text format 1466RTL register transfer language 1467RTL resistor-transistor logic 1468RTL right to left 1469RTM restricted transactional memory (Intel) 1470RTOS real time operating system 1471RTP Real-time Transport Protocol 1472RTS request to send 1473RTT round trip time 1474RTTI run-time type information 1475RUP rational unified process 1476RW Rabin-Williams 1477RWM read-write memory 1478RX {receive,receiver} 1479S/PDIF Sony/Philips Digital Interface Format 1480SA security advisory 1481SA security association 1482SA source address 1483SA structured analysis 1484SAAS software as a service 1485SABRE Semi-automated business research environment 1486SACD super audio compact disc 1487SAD security association database 1488SAF-TE SCSI accessed fault-tolerant enclosure 1489SAGE Semi-automated ground environment 1490SAL {service,system} abstraction layer 1491SAM serial access memory 1492SAM sum addressed memory 1493SAML security assertion markup language 1494SAN storage area network 1495SAP service access point 1496SAPIC streamlined advanced programmable interrupt controller 1497SASD structured analysis, structured design 1498SASI Shugart Associates System Interface 1499SASL simple authentication [and] security layer 1500SATA serial advanced technology attachment 1501SAX simple API for XML 1502SB sound blaster 1503SBSA server base system architecture 1504SBU standard build unit 1505SC store conditional 1506SCA source code analyzer 1507SCADA supervisory control and data acquisition 1508SCC single chip cloud 1509SCC source code control 1510SCCP skinny call control protocol 1511SCCS Source Code Control System 1512SCI scalable coherent interface 1513SCI system control interrupt 1514SCIM smart common input method 1515SCM software configuration management 1516SCM source code management 1517SCM storage-class memory 1518SCO synchronous connection orientated 1519SCP secure copy 1520SCP system control processor 1521SCPI system control and power interface 1522SCSI Small Computer System Interface 1523SCTP Stream Control Transmission Protocol 1524SDDC software defined data center 1525SDEI software delegated exception interface 1526SDI symbol deinterleave 1527SDK software development kit 1528SDL Simple Declarative Language 1529SDL Simple Direct-media Layer 1530SDLC {software,system,systems} development life cycle 1531SDN software defined networking 1532SDP Session Description Protocol 1533SDR software defined radio 1534SDRAM synchronous dynamic random access memory 1535SDS software defined storage 1536SDT syntax-directed translation 1537SEA synchronous external abort 1538SED self-encrypting drive 1539SED stream editor 1540SEGV segmentation violation 1541SEMB serial ATA enclosure management bridge 1542SEO search engine optimization 1543SES SCSI enclosure services 1544SFC sequential function chart 1545SFI simple firmware interface 1546SFI software fault isolation 1547SFP small form-factor pluggable 1548SFTP SSH File Transfer Protocol 1549SFTP Serial File Transfer Protocol 1550SFTP Simple File Transfer Protocol 1551SGI Silicon Graphics, Inc 1552SGI software generated interrupt 1553SGMII serial gigabit media independent interface 1554SGPIO serial general purpose input/output 1555SGRAM synchronous graphics random access memory 1556SHA secure hash algorithm 1557SICP structure and interpretation of computer programs 1558SIDH supersingular isogeny Diffie-Hellman 1559SIEM security information and event management 1560SIF source input format 1561SIFS short inter-frame space 1562SIM subscriber identity module 1563SIMD single instruction, multiple data 1564SIMM single inline memory module 1565SIP Session Initiation Protocol 1566SIR signal-to-interference ratio 1567SIR slow infrared 1568SIRT security incident response team 1569SISD single instruction, single data 1570SIV synthetic intialization vector 1571SLAAC stateless address auto-configuration 1572SLC single-level cell 1573SLDRAM synchronous-link dynamic random access memory 1574SLED single large expensive disk 1575SLI scalable link interface 1576SLI scan-line interleave 1577SLIC system license internal code 1578SLOC source lines of code 1579SLRU segmented LRU 1580SMA smart memory access 1581SMAF system management action field 1582SMAP Simple Mail Access Protocol 1583SMAP supervisor mode access prevention 1584SMART self-monitoring analysis and reporting technology 1585SMB Server Message Block 1586SMB system management bus 1587SMBIOS System Management BIOS 1588SMC system management controller 1589SMD storage module device 1590SMEP supervisor mode execution protection 1591SMF single mode fiber 1592SMI structure of management information 1593SMI system management interrupt 1594SMM system management mode 1595SMP serial management protocol 1596SMP symmetric multiprocessing 1597SMR shingled magnetic recording 1598SMR state machine replication 1599SMT simultaneous multithreading 1600SMTP Simple Mail Transfer Protocol 1601SMU system management unit 1602SNA systems network architecture 1603SNAP Sub-Network Access Protocol 1604SNIA Storage Networking Industry Association 1605SNMP Simple Network Management Protocol 1606SNR signal-to-noise ratio 1607SOA service oriented architecture 1608SOAP Simple Object Access Protocol 1609SOC security operations center 1610SOC system on chip 1611SOF start of frame 1612SOH start of header 1613SOHO small office/home office 1614SOL serial over LAN 1615SOM system on module 1616SP service pack 1617SP stack pointer 1618SPA storage pool allocator 1619SPAN switched port analyzer 1620SPARC scalable processor architecture 1621SPARQL SPARQL Protocol and RDF Query Language 1622SPD security policy database 1623SPD serial presence detect 1624SPDIF Sony/Philips digital interface format 1625SPI serial peripheral interface 1626SPI stateful packet inspection 1627SPIR standard portable intermediate representation 1628SPL secondary program loader 1629SPL spinlock 1630SPL system interrupt priority level 1631SPMD single process, multiple data 1632SPR special purpose register 1633SPT sectors per track 1634SQA software quality assurance 1635SQCIF sub quarter common intermediate format 1636SQL Structured Query Language 1637SRAM static random access memory 1638SRC sample rate conversion 1639SRP SCSI RDMA protocol 1640SRR shaped round robin 1641SRTP Secure Real-time Transport Protocol 1642SS self-snoop 1643SS stack segment 1644SSA static single assignment 1645SSAP source service access point 1646SSB single-sideband modulation 1647SSB speculative store bypass 1648SSBB speculative store bypass barrier (Arm) 1649SSBD speculative store bypass disable (Intel) 1650SSC spread spectrum clock 1651SSD solid state drive 1652SSE streaming SIMD extensions 1653SSFDC solid state floppy disc card 1654SSH secure shell 1655SSI server side includes 1656SSID service set identifier 1657SSL secure sockets layer 1658SSP stack smashing protection 1659SSRF server-side request forgery 1660SSTP secure socket tunneling protocol 1661STC software thermal control 1662STD state transition diagram 1663STEK session ticket encryption key 1664STM software transactional memory 1665STOMP Streaming Text Oriented Messaging Protocol 1666STP Spanning Tree Protocol 1667STP shielded twisted pair 1668STRG spanning tree root guard 1669SUN Stanford University Network 1670SUS Single Unix Specification 1671SUT system under test 1672SVC switched virtual circuit 1673SVG scalable vector graphics 1674SVGA Super Video Graphics Array 1675SVI {switch,switched} virtual interface 1676SVM secure virtual machine 1677SVM support vector machine 1678SVR System V Release 1679SVS Separate Virtual Space 1680SWF Shockwave Flash 1681SWIG simplified wrapper [and] interface generator 1682SYR symbol timing recovery 1683TA test assertion 1684TA transmitter address 1685TAA transactional asynchronous abort (Intel) 1686TACACS terminal access controller access-control system 1687TAI international atomic time 1688TAO track at once 1689TAOCP The Art of Computer Programming 1690TAP Test Anything Protocol 1691TAS test and set 1692TB terabyte 1693TBNF transitional backus-naur form 1694TCB trace capture buffer 1695TCB trusted computing base 1696TCC thermal control circuit 1697TCL tool command language 1698TCP Transmission Control Protocol 1699TCQ tagged command queueing 1700TDC time [to] digital converter 1701TDD test-driven development 1702TDD time division duplex 1703TDM time division multiplexing 1704TDMA time division multiple access 1705TDOA time difference of arrival 1706TDP thermal design {point,power} 1707TDR time-domain reflectometry 1708TECO Text Editor and Corrector 1709TEE Trusted Execution Environment 1710TFT thin film transistor 1711TFTP Trivial File Transfer Protocol 1712TIAS try it and see 1713TIFF tagged image file format 1714TITS try it to see 1715TK temporal key 1716TKIP Temporal Key Integrity Protocol 1717TLA top level aggregator 1718TLB translation lookaside buffer 1719TLD top level domain 1720TLER time-limited error recovery 1721TLI transport layer interface 1722TLS thread local storage 1723TLS transport layer security 1724TM Turing machine 1725TM thermal monitor 1726TMDS transition minimized differential signaling 1727TMG transmogrifier 1728TMO timeout 1729TOD time of day 1730TOE TCP offload engine 1731TOFU trust on first use 1732TOS terms of service 1733TOS trusted operating system 1734TOS type of service 1735TOTP time-based one time password 1736TP transaction processing 1737TPI tracks per inch 1738TPM transactions per minute 1739TPM trusted platform module 1740TPR task priority register 1741TPS transactions per second 1742TPS transmission parameters signaling 1743TR task register 1744TR token ring 1745TRL timing recovery loop 1746TRNG true random number generator 1747TS terminal services 1748TS time series 1749TS time stamp 1750TS transport stream 1751TSAN Thread Sanitizer 1752TSC time stamp counter 1753TSD time stamp disable 1754TSDB time series database 1755TSL test, set, lock 1756TSO TCP segmentation offload 1757TSO Total Store Ordering 1758TSO time sharing option 1759TSP Time-Stamp Protocol 1760TSP Tunnel Setup Protocol 1761TSP time synchronization protocol 1762TSP traveling salesman problem 1763TSS task state segment 1764TSV tab-separated values 1765TSX transaction synchronization extensions (Intel) 1766TTL time to live 1767TTL transistor-transistor logic 1768TTM translation table maps 1769TTY teletype 1770TU translation unit 1771TUI {terminal,text-based,textual} user interface 1772TX {transmit out,transmitter} 1773TXG transaction group 1774TZ time zone 1775UAC user {access,account} control 1776UAF use-after-free 1777UART universal asynchronous receiver/transmitter 1778UAT user acceptance testing 1779UB undefined behavior 1780UBSAN Undefined Behavior Sanitizer 1781UC uncacheable 1782UCS unified computing system 1783UCS uniform-cost search 1784UCS universal coded character set 1785UDI uniform driver interface 1786UDMA ultra DMA 1787UDO ultra density optical 1788UDP User Datagram Protocol 1789UDS Unix Domain Socket 1790UEFI unified extensible firmware interface 1791UFO UDP fragmentation offload 1792UFS Unix File System 1793UGA universal graphics adapter 1794UI unit interval 1795UI user interface 1796UICC universal integrated circuit card 1797UID unique identifier 1798UID user identifier 1799UL upload 1800UMA uniform memory access 1801UMA upper memory area 1802UMB upper memory block 1803UML unified modeling language 1804UMPC ultra-mobile PC 1805UPNP universal plug and play 1806UPS uninterruptible power supply 1807URI uniform resource identifier 1808URL uniform resource locator 1809URN uniform resource name 1810USART universal synchronous/asynchronous receiver/transmitter 1811USB universal serial bus 1812USWC uncacheable speculative write combining 1813UT unit test 1814UTC coordinated universal time 1815UTF unicode transformation formats 1816UTP unshielded twisted pair 1817UTS UNIX time-sharing 1818UUCP Unix-to-Unix Copy Protocol 1819UUID universally unique identifier 1820UUOC useless use of cat 1821UUT unit under test 1822UX user experience 1823VA vertical alignment 1824VA virtual address 1825VA volt-ampere 1826VAX virtual address extension 1827VB Visual Basic 1828VBR volume boot record 1829VCA variable-gain amplifier 1830VCC common collector voltage 1831VCCP virtual chassis control protocol 1832VCF voltage-controlled filter 1833VCM virtual channel memory 1834VCO voltage-controlled oscillator 1835VCP virtual chassis port 1836VCS version control system 1837VDP vulnerability disclosure policy 1838VDPAU Video Decode and Presentation API for Unix 1839VES virtual execution system 1840VESA Video Electronics Standards Association 1841VFO variable-frequency oscillator 1842VFS virtual file system 1843VG volume group 1844VGA Video Graphics Array 1845VHDCI very high density cable interconnect 1846VID {VLAN,voltage level} identifier 1847VIM Vi IMproved 1848VIPT virtually indexed, physically tagged 1849VIVT virtually indexed, virtually tagged 1850VLAN virtual local area network 1851VLD variable-length decoding 1852VLIW very long instruction word 1853VLSI very large scale integration 1854VLSM variable length subnet mask 1855VM virtual {machine,memory} 1856VME virtual mode extension 1857VMX vector multimedia extensions 1858VMX virtual machine extensions 1859VNC virtual network computing 1860VNI virtual network identifier 1861VOD video on demand 1862VPD vital product data 1863VPN virtual private network 1864VPWS virtual private wire service 1865VR virtual reality 1866VRAM video random access memory 1867VRF virtual routing and forwarding 1868VRM voltage regulator module 1869VROC Virtual RAID On CPU 1870VRRP Virtual Router Redundancy Protocol 1871VSTP VLAN Spanning Tree Protocol 1872VTEP VXLAN tunnel endpoint 1873VTP VLAN Trunking Protocol 1874VXFS Veritas file system 1875VXLAN virtual extensible LAN 1876VXVM Veritas volume manager 1877W watt 1878W3C World Wide Web Consortium 1879WAFL write anywhere file layout 1880WAMP Web Application Messaging Protocol 1881WAN wide area network 1882WAP Wireless Application Protocol 1883WAP wireless access point 1884WDDM Windows Display Driver Model 1885WDM Windows Driver Model 1886WDT watchdog timer 1887WEP Wired Equivalent Privacy 1888WFI wait for interrupt 1889WFQ weighted fair queuing 1890WH write hit 1891WHEA Windows hardware error architecture 1892WIFI wireless fidelity 1893WLAN wireless local area network 1894WM write miss 1895WMF Windows meta file 1896WMI Windows Management Instrumentation 1897WOL Wake-on-LAN 1898WOM Wake-on-Modem 1899WOR Wake-on-Ring 1900WORM write once read many 1901WP WordPerfect 1902WP word processor 1903WP write protect 1904WPA Wi-Fi Protected Access 1905WPA2 Wi-Fi Protected Access II 1906WPAD web proxy auto-discovery protocol 1907WPS Wi-Fi Protected Setup 1908WRAM window random access memory 1909WS web services 1910WTC write through caching 1911WTD weighted tail drop 1912WWAN wireless wide area network 1913WWW world wide web 1914WYSIAYG what you see is all you get 1915WYSIWYG what you see is what you get 1916XBAR crossbar 1917XDMCP X Display Manager control protocol 1918XER XML encoding rules 1919XGA Extended Graphics Array 1920XHR XMLHttpRequest 1921XIP execute in place 1922XML Extensible Markup Language 1923XNA XNA's not acronymed 1924XNS Xerox network systems 1925XOR exclusive or 1926XP extreme programming 1927XSI X/Open System Interface 1928XSL extensible stylesheet language 1929XSLT extensible stylesheet language transformations 1930XSS cross site scripting 1931XT extended technology 1932XTACACS extended terminal access controller access-control system 1933XTI X/Open transport interface 1934XUL XML user interface language 1935YACC yet another compiler compiler 1936YAML YAML ain't markup language 1937YANG yet another next generation 1938YAWPFAPR you are welcome; please file a problem report 1939YP Yellow Pages 1940YTD year to date 1941ZAP ZFS attribute processor 1942ZBR zone bit recording 1943ZFOD zero-filled on demand 1944ZFS zettabyte file system 1945ZIF zero insertion force 1946ZIFS zero insertion force socket 1947ZIL ZFS intent log 1948ZMA zone multicast address 1949ZOI zero one infinity 1950ZOI zone of influence 1951ZPL ZFS Posix layer 1952ZVOL ZFS Volume 1953