acronyms.comp revision 1.381
1$NetBSD: acronyms.comp,v 1.381 2023/11/24 21:17:49 alnsn Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APEI ACPI platform error interface 72APFS Apple file system 73API application programming interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APT advanced persistent threat 79APU accelerated processing unit 80AQM active queue management 81ARAT always running APIC timer 82ARC Advanced RISC Computing 83ARC adaptive replacement cache 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR Apple software restore 108ASR address space register 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMIC bus master interface controller 163BMP basic multilingual plane 164BMP bitmap image file 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTB branch target buffer 201BTB board-to-board 202BTC bit test [and] complement 203BTM bus transport mechanism 204BTR bit test [and] reset 205BTS bit test [and] set 206BTS bug tracking system 207BUAG big ugly ASCII graphic 208BW bandwidth 209BWM block-write mode 210CA certificate authority 211CAC cryptographic access control 212CACLS change access control lists 213CAD computer-aided design 214CAM computer assisted manufacturing 215CAM conditional access module 216CAM content addressable memory 217CAN controller area network 218CARP Common Address Redundancy Protocol 219CAS column address strobe 220CAS compare and swap 221CAS computer algebra system 222CASE computer aided software engineering 223CAU control access unit 224CAV constant angular velocity 225CBC cipher block chaining 226CBR constant bit rate 227CC carbon copy 228CCC Chaos Computer Club 229CCD charge coupled device 230CCI co-channel interferer 231CCNUMA cache-coherent non-uniform memory access 232CCTL command completion time limit 233CD cache disable 234CD compact disc 235CDDA compact disc digital audio 236CDL compiler description language 237CDMA code division multiple access 238CDN content delivery network 239CDP Cisco Discovery Protocol 240CDRAM cache dynamic random access memory 241CE customer edge 242CER canonical encoding rules 243CERT computer emergency response team 244CET control flow enforcement technology 245CF compact flash 246CFB cipher feedback 247CFG context-free grammar 248CFG control-flow graph 249CFI control-flow integrity 250CG control gate 251CGA Color Graphics Adapter 252CGI common gateway interface 253CGN Carrier-Grade NAT 254CHAP Challenge-Handshake Authentication Protocol 255CHFS chip file system 256CHS cylinder/head/sector 257CI continuous integration 258CI {common,component} interface 259CIA confidentiality, integrity, availability 260CIDR Classless Inter-Domain Routing 261CIF common intermediate format 262CIFS Common Internet File System 263CIL common intermediate language 264CIR carrier-to-interference ratio 265CIS contact image sensor 266CISC complex instruction set {computer,computing} 267CJK Chinese, Japanese, [and] Korean 268CLF common log format 269CLI command line interface 270CLI common language infrastructure 271CLR common language runtime 272CLS common language specification 273CLTT closed loop thermal throttling 274CLUT color look-up table 275CLV constant linear velocity 276CM configuration management 277CMA concert multithread architecture 278CMC certificate management over CMS 279CMC chassis management controller 280CMC corrected machine check 281CMI control {management,method} interface 282CMOS complementary metal-oxide-semiconductor 283CMP chip multi-processing 284CMS content management system 285CMS cryptographic message syntax 286CMS {configuration,content,course} management system 287CMYK cyan magenta yellow black 288CN {common,canonical} name 289CNA CVE Numbering Authority 290CNC computer numerical control 291CNR carrier-to-noise ratio 292COA change of authority 293COF current operating frequency 294COFDM coded orthogonal frequency division multiplexing 295COFF common object file format 296COM component object model 297COM computer on module 298COMA cache-only memory architecture 299CORBA common object request broker architecture 300COS class of service 301COW copy-on-write 302CP continuous pilot 303CPA chosen-plaintext attack 304CPB core performance boost 305CPC central processor complex 306CPC cpu performance counters 307CPE common phase error 308CPE common platform enumeration 309CPER common platform error record 310CPG clock pulse generator 311CPI cycles per instruction 312CPL current privilege level 313CPLD complex programmable logic device 314CPP C preprocessor 315CPS characters per second 316CPS continuation-passing style 317CPT command pass through 318CPU central processing unit 319CR carriage return 320CRC cyclic redundancy check 321CRDT conflict-free replicated data type 322CRL carrier recovery loop 323CRLF carriage return line feed 324CRQC cryptanalytically relevant quantum computer 325CRT cathode ray tube 326CRTP curiously recurring template pattern 327CRUD create, read, update, and delete 328CS cable select 329CS chip select 330CS code segment 331CS computer science 332CSDL {common,conceptual} schema definition language 333CSI channel state information 334CSI common system interface 335CSIRT computer security incident response team 336CSMA carrier sense multiple access 337CSMA/CA carrier sense multiple access with collision avoidance 338CSMA/CD carrier sense multiple access with collision detection 339CSP communicating sequential processes 340CSP constrain satisfaction problems 341CSP content security policy 342CSP cryptographic service provider 343CSPM cloud security posture management 344CSR control [and] status registers 345CSRF cross-site request forgery 346CSRG Computer Systems Research Group 347CSS cascading style sheets 348CST common spanning tree 349CSU C start up 350CSV comma-separated values 351CTF compact c type format 352CTM close to metal 353CTR counter [mode] 354CTS clear to send 355CTS common type system 356CUA common user access 357CUT coordinated universal time 358CV control voltage 359CVE common vulnerabilities and exposures 360CVS Concurrent Versions System 361CVSS Common Vulnerability Scoring System 362DA destination address 363DAA distributed application architecture 364DAAP digital audio access protocol 365DAB digital audio broadcasting 366DAC digital [to] analog converter 367DAC discretionary access control 368DAD duplicate address detection 369DAE deterministic authenticated encryption 370DANE DNS-based Authentication of Named Entities 371DAO disk at once 372DAP Directory Access Protocol 373DAT digital audio tape 374DAT dynamic acceleration technology 375DB database 376DBA database administrator 377DBA dynamic bandwidth allocation 378DBB data bus buffer 379DBC design by contract 380DBL dynamic buffer limiting 381DBMS database management system 382DBS database server 383DC data center 384DC direct current 385DCC Direct Client-to-Client 386DCC direct cable connect 387DCD data carrier detect 388DCE data control equipment 389DCE distributed computing environment 390DCIM data center infrastructure management 391DCIM digital camera images 392DCL Digital Command Language 393DCOM distributed component object model 394DCOP Desktop COmmunication Protocol 395DCS data collection systems 396DCT discrete cosine transform 397DCU data cache unit 398DDC display data channel 399DDE dynamic data exchange 400DDI device drivers interface 401DDK device driver kit 402DDL data description language 403DDR double data rate 404DDS direct digital sound 405DDWG Digital Display Working Group 406DE debugging extensions 407DE desktop environment 408DEA data encryption algorithm 409DEC Digital Equipment Corporation 410DEK data encryption key 411DEP data execution prevention 412DER distinguished encoding rules 413DES Data Encryption Standard 414DF don't fragment 415DFA deterministic finite automaton 416DFC data flow control 417DFS depth first search 418DFS distributed file system 419DFSAN Data Flow Sanitizer 420DFT diagnostic function test 421DFT discrete Fourier transform 422DFZ default-free zone 423DGEMM double precision general matrix multiply 424DGL data generation language 425DH Diffie-Hellman 426DHCP Dynamic Host Configuration Protocol 427DIA dedicated Internet access 428DIB device independent bitmap 429DIFS distributed inter-frame space 430DIMM dual inline memory module 431DIRT design in real time 432DKI driver/kernel interface 433DL diode logic 434DL discrete logarithm 435DL download 436DLCI data link connection identifier 437DLE data link escape 438DLL dynamic link library 439DLNA digital living network alliance 440DLP discrete logarithm problem 441DMA direct memory access 442DMB data memory barrier (Arm) 443DMI desktop management interface 444DMS document management system 445DMT discrete multitone modulation 446DMU data management layer 447DNARD Digital network appliance reference design 448DND drag and drop 449DNLC directory name lookup cache 450DNS Domain Name System 451DNSBL Domain Name System Block List 452DNSSEC DNS Security Extensions 453DOE distributed object environment 454DOF data over fibre 455DOH DNS over HTTPS 456DOM document object model 457DOQ DNS over QUIC 458DOS denial of service 459DOS disk operating system 460DOT DNS over TLS 461DP DisplayPort 462DPAA data path acceleration architecture 463DPC deferred procedure call 464DPCM differential pulse code modulation 465DPD dead peer detection 466DPDK data plane development kit 467DPI deep packet inspection 468DPI dots per inch 469DPL descriptor privilege level 470DPS Display PostScript 471DPST display power savings technology 472DRAAS disaster recovery as a service 473DRAM dynamic random access memory 474DRBG deterministic random bit generator 475DRI direct rendering infrastructure 476DRM digital rights management 477DRM direct rendering manager 478DRN Discovery of Network-designated Resolvers 479DRRS display refresh rate switching 480DS debug store 481DS differentiated services 482DS9000 DeathStation 9000 483DS9K DeathStation 9000 484DSA digital signature algorithm 485DSAP destination service access point 486DSB data synchronization barrier (Arm) 487DSB double-sideband modulation 488DSCP differentiated services code point 489DSDT differentiated system descriptor table 490DSF device special file 491DSL dataset and snapshot layer 492DSL digital subscriber line 493DSL domain specific language 494DSLAM digital subscriber line access multiplexer 495DSN delivery status notification 496DSO dynamic shared object 497DSP digital signal processor 498DSSS direct sequence spread spectrum 499DTB device tree blob 500DTC device tree compiler 501DTD document type definition 502DTE data terminal equipment 503DTE dumb terminal emulator 504DTL diode-transistor logic 505DTLS datagram transport layer security 506DTS device tree source 507DTS digital thermal sensor 508DUT device under test 509DVB digital video broadcasting 510DVCS distributed version control system 511DVD digital versatile disc 512DVFS dynamic voltage and frequency scaling 513DVI Digital Visual Interface 514DVI device independent 515DVR digital video recorder 516DWARF Debugging With Attributed Record Formats 517E-XER extended XML encoding rules 518EABI embedded-application binary interface 519EAI Email Address Internationalization 520EAI Enterprise Application Integration 521EAP Extensible Authentication Protocol 522EAPOL EAP over Lan 523EAV entity-attribute-value model 524EAV ethernet audio/video bridging 525EBCDIC Extended Binary Coded Decimal Interchange Code 526EBDA Extended BIOS Data Area 527EBNF extended backus-naur form 528EBR extended boot record 529EC elliptic curve 530ECC elliptic curve cryptography 531ECC error correction code 532ECDH elliptic curve Diffie-Hellman 533ECDL elliptic curve discrete logarithm 534ECDLP elliptic curve discrete logarithm problem 535ECDSA elliptic curve digital signature algorithm 536ECL emitter-coupled logic 537ECN explicit congestion notification 538ECP enhanced capability port 539ECS enhanced chip set 540ECS extended configuration space 541EDAC error detection and correction 542EDAT enhanced dynamic acceleration technology 543EDGE explicit data graph execution 544EDID extended display identification data 545EDO extended data out 546EDS electronical data sheet 547EDSAC electronic delay storage automatic calculator 548EDVAC electronic discrete variable automatic computer 549EEE embrace, extend, extinguish 550EEE energy efficient ethernet 551EEPROM electrically erasable programmable read only memory 552EFI extensible firmware interface 553EFL emitter follower logic 554EFM eight to fourteen modulation 555EFS extent file system 556EGA Enhanced Graphics Adapter 557EGP exterior gateway protocol 558EH extension header 559EIDE enhanced IDE 560EINJ error injection table 561EISA extended industry standard architecture 562ELF executable and linking format 563ELS entry level system 564EMACS Editor MACroS 565EMI electro-magnetic interference 566EMP electro-magnetic pulse 567EMR electro-magnetic radiation 568ENIAC electronic numerical integrator and computer 569EOF end of file 570EOI end of interrupt 571EOIS end of interactive support 572EOL end of life 573EOL end of line 574EOT end of transmission 575EPIC explicitly parallel instruction computing 576EPP enhanced parallel port 577EPP extensible provisioning protocol (RFC5730) 578EPRML extended partial response, maximum likelihood 579EPROM erasable programmable read only memory 580EPT extended page tables 581ERC error recovery control 582ERD emergency recovery disk 583ERD entity relationship diagram 584ERE extended regular expression 585ERST error record serialization table 586ESAN Efficiency Sanitizer 587ESB enterprise service bus 588ESDI enhanced small disk interface 589ESDRAM enhanced synchronous dynamic random access memory 590ESI enclosure services interface 591ESS electronic switching system 592ESS extended service set 593ESSID extended service set identifier 594EST enhanced speedstep 595ETL extract, transform, load 596EU execution unit 597EULA end user license agreement 598EdDSA Edwards curve digital signature algorithm 599FAT file allocation table 600FBRAM frame buffer random access memory 601FCIF full common intermediate format 602FCL fiber channel loop 603FCS frame check sequence 604FDC floppy disk controller 605FDD floppy disk drive 606FDDI fiber distributed data interface 607FDE full disk encryption 608FDT flattened device tree 609FEA finite element analysis 610FEC forward error correction 611FET field-effect transistor 612FF finite field 613FF form feed 614FFDH finite-field Diffie-Hellman 615FFH functional fixed hardware 616FFI foreign function interface 617FFM focus follows mouse 618FFS Fast File System 619FFS find first set 620FFT fast Fourier transform 621FG floating gate 622FHRP first hop redundancy protocol 623FHSS frequency hop spread spectrum 624FID frequency identifier 625FIFO first in, first out 626FILO first in, last out 627FIPS Federal Information Processing Standards 628FIR fast infrared 629FLOPS floating [point] operations per second 630FLOSS free/libre/open source software 631FM frequency modulation 632FMR false match rate 633FOSS free/open source software 634FPGA field programmable gate array 635FPM fast page mode 636FPR floating point register 637FPU floating point unit 638FQDN fully qualified domain name 639FRR false rejection rate 640FRU field replaceable unit 641FS file system 642FSB front side bus 643FSCK file system check 644FSF Free Software Foundation 645FSK frequency shift keying 646FSM finite-state machine 647FTA fault tree analysis 648FTL flash translation layer 649FTP File Transfer Protocol 650FTPS File Transfer Protocol Secure 651FTTH fiber to the home 652FUS fast user switching 653FWH firmware hub 654FWS folding white space 655GAL generic array logic 656GARP generic attribute registration protocol 657GAS generic address structure 658GC garbage collector 659GCC GNU Compiler Collection 660GCM Galois counter mode 661GCR group-coded recording 662GDI Graphics Device Interface 663GDT global descriptor table 664GECOS general comprehensive operating supervisor 665GEM graphics environment manager 666GEM graphics execution manager 667GEMM general matrix multiply 668GENA general event notification architecture 669GHC Glasgow Haskell compiler 670GHES generic hardware error source 671GIC generic interrupt controller 672GID group identifier 673GIF graphics interchange format 674GLBP gateway load balancing protocol 675GMCH graphics and memory controller hub 676GNU GNU's Not Unix 677GOP graphics output protocol 678GOT global offset table 679GPE general purpose event 680GPF general protection fault 681GPG GNU Privacy Guard 682GPL [GNU] General Public License 683GPR general purpose register 684GPS generalized processor sharing 685GPT GUID partition table 686GPU graphics processing unit 687GR golden ratio 688GRE generic routing encapsulation 689GRO generic receive offload 690GSI global system interrupt 691GSO generic send offload 692GUI graphical user interface 693GUID globally unique identifier 694GUS Gravis UltraSound 695GVFS git virtual file system 696HA high availability 697HAL hardware abstraction layer 698HAT hashed array tree 699HATEOAS hypermedia as the engine of application state 700HBA host bus adapter 701HCC Home Cable Computer 702HCCA Home Cable Computer Adaptor 703HCF halt and catch fire 704HCI host controller interface 705HCI human-computer interaction 706HCL hardware compatibility list 707HDCP High-bandwidth Digital Content Protection 708HDD hard disk drive 709HDL hardware description language 710HDMI High-Definition Multimedia Interface 711HDTV high-definition television 712HECI host embedded controller interface 713HEST hardware error source table 714HEVC high efficiency video coding 715HF high frequency 716HFM highest frequency mode 717HFS hierarchical file system 718HID human interface device 719HKDF HMAC-based key derivation function 720HKP HTTP Keyserver Protocol 721HLE hardware lock elision (Intel) 722HLL high-level language 723HMA high memory area 724HMI human-machine interface 725HOOD hierarchical object oriented design 726HOTP HMAC-based one time password 727HP Hewlett-Packard 728HPC high performance computing 729HPD hot plug detection 730HPET high precision event timer 731HSM hardware security module 732HSM hierarchical storage management 733HSRP hot standby router protocol 734HT hyper-threading 735HTC hardware thermal control 736HTCC high temperature co-fired ceramic 737HTML HyperText Markup Language 738HTT hyper-threading technology 739HTTP Hypertext Transfer Protocol 740HTTPS Hypertext Transfer Protocol Secure 741HVDS High-Voltage Differential Signaling 742HVM hardware virtual machine 743HWASAN Hardware-assisted Address Sanitizer 744HZ Hertz 745I2O intelligent input/output 746IA information assurance 747IAAS infrastructure as a service 748IAB Internet Architecture Board 749IANA Internet Assigned Numbers Authority 750IBC iterated block cipher 751IBM International Business Machines 752IBPI international blinking pattern interpretation 753IBS instruction based sampling 754IBSS independent basic service set 755IBT indirect branch tracking 756IC integrated circuit 757ICA independent computer architecture 758ICACLS integrity control access control lists 759ICB Internet Citizen's Band 760ICE in-circuit emulator 761ICE internal compiler error 762ICH I/O controller hub 763ICMP Internet Control Message Protocol 764ICT information and communications technology 765ICW initialization command word 766IDA Intel dynamic acceleration 767IDCMP Intuition direct communication message port 768IDCT inverse discrete cosine transform 769IDE integrated development environment 770IDE integrated drive electronics 771IDPS intrusion detection [and] prevention system 772IDRP inter-domain routing protocol 773IDS intrusion detection system 774IDT interrupt descriptor table 775IE Internet Explorer 776IEC International Electrotechnical Commission 777IEEE Institute of Electrical and Electronics Engineers 778IESG Internet Engineering Steering Group 779IETF Internet Engineering Task Force 780IF intermediate frequency 781IFCM isochronous flow control mode 782IFF Interchange File Format 783IFS internal field separator 784IGD Internet gateway device 785IGMP Internet Group Management Protocol 786IGP interior gateway protocol 787IHV independent hardware vendor 788IKE Internet key exchange 789ILM internal loopback mode 790ILOM integrated lights-out management 791ILP instruction level parallelism 792IM instant messaging 793IMAP Internet Message Access Protocol 794IMC integrated memory controller 795IMCR interrupt mode configuration register 796IME input method editor 797IMR interrupt mask register 798IMS information management system 799IMSI international mobile subscriber identity 800INCITS InterNational Committee for Information Technology Standards 801INODE index node 802IO input/output 803IOCTL input/output control 804IOM input/output managers 805IOMMU input/output memory management unit 806IOT Internet of Things 807IP Internet Protocol 808IP intellectual property 809IPC instructions per cycle 810IPC interprocess communication 811IPCF interprocess communication facility 812IPE integrated programming environment 813IPI intelligent peripheral interface 814IPI interprocessor interrupt 815IPL Initial Program Load 816IPL Interrupt Priority Level 817IPMB Intelligent Platform Management Bus 818IPMI Intelligent Platform Management Interface 819IPNG Internet Protocol, Next Generation 820IPS in-plane switching 821IPS intrusion prevention system 822IPSEC Internet Protocol Security 823IR intermediate representation 824IRC Internet Relay Chat 825IRDA infrared data association 826IRDP ICMP Router Discovery Protocol 827IRQ interrupt request 828IRQL interrupt request level 829IRR interrupt request register 830IRTF Internet Research Task Force 831IS information system 832ISA industry standard architecture 833ISA instruction set architecture 834ISB instruction synchronization barrier (Arm) 835ISDN integrated services digital network 836ISE instant secure erase 837ISI inter-symbol interference 838ISL initial system load 839ISM industrial, scientific, [and] medical 840ISMS information system management system 841ISN initial serial number 842ISO International Standards Organization 843ISOC Internet Society 844ISP Internet service provider 845ISR in-service register 846ISR interrupt service routine 847IST internal spanning tree 848IST interrupt stack table 849ISV independent software vendor 850IT information technology 851ITB Intel Turbo Boost 852ITIL information technology infrastructure library 853ITP in-target probe 854ITSM IT service management 855IV initialization vector 856IVT interrupt vector table 857JBOD just a bunch of disks 858JCL Job Control Language 859JFET junction [gate] field-effect transistor 860JIT just in time 861JPEG Joint Photographic Experts Group 862JRE Java Runtime Environment 863JSON JavaScript Object Notation 864JTAG joint test action group 865KASAN Kernel Address Sanitizer 866KASLR kernel address space layout randomization 867KB keyboard 868KB kilobyte 869KBD keyboard 870KBD kilobaud 871KCS keyboard controller style 872KEK key encryption key 873KEM key encapsulation mechanism 874KLOC thousand lines of code 875KMS kernel-mode setting 876KPI kernel programming interface 877KVA kernel virtual address 878KVM kernel virtual machine 879KVM kernel virtual memory 880KVM keyboard, video, [and] mouse 881L2CAP link layer control and adaptation protocol 882LAG link aggregation group 883LAMP Linux Apache MySQL {Perl,PHP,Python} 884LAN local area network 885LAPIC local advanced programmable interrupt controller 886LAR load access rights 887LBA logical block addressing 888LBNF labeled backus-naur form 889LBS location-based service 890LCD liquid crystal display 891LCP link control protocol 892LDA local delivery agent 893LDAP Lightweight Directory Access Protocol 894LDR light-dependent resistor 895LDT local descriptor table 896LE logical extent 897LED light emitting diode 898LELL low energy link layer 899LER label edge router 900LF line feed 901LF low frequency 902LFM lowest frequency mode 903LFN long file names 904LFO low-frequency oscillation 905LFS log-structured file system 906LFU least frequently used 907LHP loop heat pipe 908LIF logical interchange format 909LIFO last in, first out 910LILO LInux LOader 911LILO last in, last out 912LINT local interrupt 913LIR local Internet registry 914LISP LISt Processor 915LISP Locator/ID Separation Protocol 916LKM {Linux,loadable} kernel module 917LKML Linux kernel mailing list 918LL load linked 919LL/SC load linked/store conditional 920LLC logical link control 921LLD low-level design 922LLDD low-level design document 923LLDP link layer discovery protocol 924LLF low level format 925LLMNR link-local multicast name resolution 926LLVM Low Level Virtual Machine 927LM long mode 928LMCE local machine check exception 929LMI local management interface 930LMM link management mode 931LMP link management protocol 932LNO loop nest optimization 933LOC lines of code 934LOM lights-out management 935LPC low pin count 936LPE Linux performance events 937LPS local positioning system 938LRC longitudinal redundancy check 939LRM left-to-right mark 940LRO Large Receive Offload 941LRO left-to-right override 942LRU least recently used 943LS link state 944LSAN Leak Sanitizer 945LSB Linux standards base 946LSB least significant {bit,byte} 947LSI large scale integration 948LSL load segment limit 949LSM log structured merge 950LSN Large Scale NAT 951LSN log sequence number 952LSO large send offload 953LSR label switch router 954LTCC low temperature co-fired ceramic 955LTO linear tape-open 956LTO link time optimization 957LTR left to right 958LTR letter(-sized paper) 959LTR load task register 960LTS long term support 961LUA Lua Uppercase Accident 962LUN logical unit number 963LV logical volume 964LVDS Low-Voltage Differential Signaling 965LVM logical volume management 966LVT local vector table 967LWP light-weight process 968LZSS Lempel Ziv Storer Szymanski 969LZW Lempel Ziv Welch 970MAB MAC authentication bypass 971MAC mandatory access control 972MAC message authentication {check,code} 973MAC {media,medium} access control 974MADT multiple APIC descriptor table 975MAMR microwave-assisted magnetic recording 976MB megabyte 977MBA multi-boot agent 978MBR master boot record 979MBS megabits per second 980MC memory controller 981MCA MicroChannel architecture 982MCA machine check architecture 983MCC multiversion concurrency control 984MCE machine check exception 985MCGA Multi-Color Graphics Array 986MCH memory controller hub 987MCLAG multi-chassis link aggregation group 988MCM multi-chip module 989MCQ memory controlled queue 990MD MiniDisc 991MD machine-dependent 992MD-SAL model-driven service abstraction layer 993MDA Monochrome Display Adapter 994MDA mail delivery agent 995MDC Management Data Clock 996MDI Medium Dependent Interface 997MDI-X Medium Dependent Interface Crossover 998MDIO Management Data Input/Output 999MDMX MIPS Digital Media eXtension 1000MDRAM multibank dynamic random access memory 1001MDS microarchitectural data sampling 1002MESI modified, exclusive, shared, invalid 1003MFC Microsoft Foundation Classes 1004MFC merge from current 1005MFM modified frequency modulation 1006MFU most frequently used 1007MGCP media gateway control protocol 1008MHU message handling unit 1009MI machine interface 1010MI machine-independent 1011MIB management information base 1012MIC message integrity {check,code} 1013MID mobile Internet device 1014MIDI musical instrument digital interface 1015MIF management information format 1016MII media independent interface 1017MIM man in the middle 1018MIMD multiple instruction, multiple data 1019MIME Multipurpose Internet Mail Extensions 1020MIMO multiple input multiple output 1021MIPS Microprocessor without Interlocked Pipeline Stages 1022MIPS million instructions per second 1023MISD multiple instruction, single data 1024MIT Massachusetts Institute of Technology 1025MITM man in the middle 1026ML machine language 1027ML machine learning 1028ML mailing list 1029ML markup language 1030ML maximum likelihood 1031ML-KEM module-lattice based key-encapsulation mechanism 1032MLAG multi-chassis link aggregation group 1033MLC multi-level cell 1034MLD multicast listener discovery 1035MLHP micro loop heat pipe 1036MLIR multi-level intermediate representation 1037MLO MMC loader 1038MMC multi-media card 1039MMF multi-mode fiber 1040MMIC monolithic microwave integrated circuit 1041MMIO memory mapped input/output 1042MMORPG massive multiplayer online role playing game 1043MMRP multiple MAC registration protocol 1044MMU memory management unit 1045MMX matrix math extension 1046MMX multimedia extension 1047MMX multiple math extension 1048MO magneto-optical 1049MOESI modified, owned, exclusive, shared, invalid 1050MOF maximum operating frequency 1051MOSFET metal-oxide-semiconductor field-effect transistor 1052MOSI modified, owned, shared, invalid 1053MP multi-platform 1054MP multiplayer 1055MP {multiprocessing,multiprocessor} 1056MPEG moving picture experts group 1057MPI message passing interface 1058MPLS Multiprotocol Label Switching 1059MPP massively parallel processor 1060MPS memory pool system 1061MPS multiprocessor specification 1062MQTT Message Queuing Telemetry Transport 1063MR modem ready 1064MRO method resolution order 1065MRP multiple registration protocol 1066MRU most recently used 1067MS Microsoft 1068MSAN Memory Sanitizer 1069MSB most significant {bit,byte} 1070MSC message sequence chart 1071MSE mean square error 1072MSF minutes seconds frames 1073MSI message signaled interrupt 1074MSI modified, shared, invalid 1075MSR {machine state,model-specific} register 1076MSS maximum segment size 1077MSTP Multiple Spanning Tree Protocol 1078MT machine translation 1079MTA mail transfer agent 1080MTBF mean time between failures 1081MTP media transfer protocol 1082MTRR memory type range register 1083MTTF mean time to failure 1084MTU maximum transmission unit 1085MUA mail user agent 1086MUD multi-user domain 1087MVCC multiversion concurrency control 1088MVR multicast VLAN registration 1089MVRP multiple VLAN registration protocol 1090MWE module width encoding 1091MX mail exchange 1092NACK negative acknowledgement 1093NAK negative acknowledgement 1094NAN neighbor awareness networking 1095NAN not a number 1096NAPT Network Address Port Translation 1097NAS network attached storage 1098NAT network address translation 1099NAV network allocation vector 1100NC numerical control 1101NC-SI network controller sideband interface 1102NCO numerically-controlled oscillator 1103NCP Network Control Protocol 1104NCQ native command queuing 1105NCSI network connectivity status indicator 1106ND neighbor discovery 1107NDFA nondeterministic finite automaton 1108NDIS network driver interface specification 1109NE numeric error 1110NEWS Network extensible Window System 1111NFA nondeterministic finite automaton 1112NFC near-field communication 1113NFCI no functional change intended 1114NFS network file system 1115NFV network function virtualization 1116NHACP NABU HCCA Application Communication Protocol 1117NIA next instruction address 1118NIC network information center 1119NIC network interface card 1120NIDS network intrusion detection system 1121NIP network interface protocol 1122NIPS network intrusion prevention system 1123NIS network information service 1124NIST National Institute of Standards and Technology 1125NLS native language support 1126NMI non-maskable interrupt 1127NMR nonce-misuse resistance 1128NNTP Network News Transfer Protocol 1129NOC network operations center 1130NOP no operation 1131NOS network operating system 1132NP nondeterministic polynomial time 1133NRND not recommended for new designs 1134NRZ non-return to zero 1135NSA National Security Agency 1136NSA nation-state adversary 1137NSA no such agency 1138NTA negative trust anchor 1139NTM non-deterministic Turing machine 1140NTP Network Time Protocol 1141NUMA non-uniform memory access 1142NURBS non-uniform rational basis spline 1143NVMM NetBSD Virtual Machine Monitor 1144NVMM non-volatile main memory 1145NVRAM non-volatile random access memory 1146NW not write-through 1147NX no execute 1148OAEP optimal asymmetric encryption padding 1149OAM operations, administration, and {management,maintenance} 1150OBO off by one 1151OBOE off by one error 1152OCL object constraint language 1153OCR optical character recognition 1154ODBC Open Database Connectivity 1155ODCM on-demand clock modulation 1156ODE offline device environment 1157ODI open data-link interface 1158ODM object data manager 1159ODMR on-demand mail relay 1160ODT on-die termination 1161OEM original equipment manufacturer 1162OFB output feedback 1163OFDM orthogonal frequency division multiplexing 1164OFET organic field-effect transistor 1165OLAP online analytical processing 1166OLE object linking and embedding 1167OLTP online transaction processing 1168ONCE on-{chip,circuit} emulation 1169ONFI open nand flash interface 1170OO OpenOffice 1171OO object oriented 1172OOB out of band 1173OOE out of order execution 1174OOM out of memory 1175OOO OpenOffice.org 1176OOP object oriented programming 1177OOPS object oriented programming systems 1178OOSE object oriented software engineering 1179OPM operations per minute 1180OPS operations per second 1181OQL Object Query Language 1182ORB object request broker 1183ORM object-relational mapping 1184OS operating system 1185OSD object-based storage device 1186OSD open source definition 1187OSF open software foundation 1188OSI Open Source Initiative 1189OSI open systems interconnection 1190OSPF open shortest path first 1191OSPM OS power management 1192OSS open sound system 1193OSS open source software 1194OSVW operating system visible workarounds 1195OTP one time password 1196OTP open telecom platform 1197OU organizational unit 1198OUI organizationally unique identifier 1199OWASP Open Web Application Security Project 1200OWL Web Ontology Language 1201P2P PCI to PCI 1202P2P peer to peer 1203PA phase accumulator 1204PA physical address 1205PAAS platform as a service 1206PAC phase-amplitude converter 1207PAE physical address extension 1208PAGP port aggregation protocol 1209PAL phase alternating line 1210PAL programmable array logic 1211PAM pluggable authentication modules 1212PAM pulse amplitude modulation 1213PAP password authentication protocol 1214PAT page attribute table 1215PAT port address translation 1216PATA parallel ATA 1217PAX portable archive exchange 1218PBE pending break encoding 1219PBE programming by example 1220PBR partition boot record 1221PBX private branch exchange 1222PC personal computer 1223PC program counter 1224PCB Protocol Control Block 1225PCB printed circuit board 1226PCB process control block 1227PCBC propagating cipher block chaining 1228PCC Portable C Compiler 1229PCD page-level cache disable 1230PCE path computation element 1231PCE performance-monitor counter enable 1232PCEP Path Computation Element Protocol 1233PCH platform controller hub 1234PCI peripheral component interconnect 1235PCM phase change memory 1236PCM pulse code modulation 1237PCMCIA Personal Computer Memory Card International Association 1238PCP Port Control Protocol 1239PD public domain 1240PDA personal digital assistant 1241PDA pushdown automaton 1242PDAG propositional directed acyclic graph 1243PDB power distribution board 1244PDF portable document format 1245PDM pulse-duration modulation 1246PDN pull-down network 1247PDP page {descriptor,directory} page 1248PDS product data sheet 1249PDU protocol data unit 1250PE portable executable 1251PE protection enable 1252PE provider edge 1253PEAP Protected EAP 1254PECI platform environment control interface 1255PEP protocol extension protocol 1256PER packed encoding rules 1257PFS perfect forward secrecy 1258PGAS partitioned global address space 1259PGE page global enable 1260PGO profile guided optimization 1261PGP Pretty Good Privacy 1262PHB PCI host bridge 1263PHP PHP: Hypertext Preprocessor 1264PIC performance instrumentation counters 1265PIC position independent code 1266PIC programmable interrupt controller 1267PICNIC problem in chair, not in computer 1268PID process id 1269PIE position independent executable 1270PIL Priority Interrupt Level 1271PIM personal information manager 1272PIM platform-independent model 1273PIO programmed input/output 1274PIPT physically indexed, physically tagged 1275PIQ prefetch input queue 1276PIR private information retrieval 1277PIT programmable interrupt timer 1278PIV personal identity verification 1279PIX Private Internet eXchange 1280PKCS public-key cryptography standards 1281PKI public key infrastructure 1282PLC programmable logic controller 1283PLD programmable logic device 1284PLL phase locked loop 1285PLRU pseudo LRU 1286PLT procedure linkage table 1287PLTM package level thermal management 1288PM power management 1289PM {phase,pulse} modulation 1290PMC performance monitoring counters 1291PME power management event 1292PMEG page map entry group 1293PMI performance monitoring infrastructure 1294PMI platform management interrupt 1295PMIC power management integrated circuit 1296PMIO port-mapped input/output 1297PMT photo-multiplier tube 1298PMU performance monitoring units 1299PMU power management unit 1300PNG portable network graphics 1301PNP plug and play 1302POE power over ethernet 1303POF probability of failure 1304POP Post Office Protocol 1305POP power on password 1306POR plan of record 1307POSIX Portable Operating System Interface [for Unix] 1308POST power on self test 1309POTS plain old telephone system 1310POWER Performance Optimization With Enhanced RISC 1311POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1312PP pair programming 1313PPB PCI [to] PCI bridge 1314PPC Power Performance Computing 1315PPC PowerPC 1316PPI pixels per inch 1317PPM pages per minute 1318PPP Point-to-Point Protocol 1319PPPOA Point-to-Point Protocol over ATM 1320PPPOE Point-to-Point Protocol over Ethernet 1321PPR processor programming reference 1322PPT powerpoint 1323PPT punched paper tape 1324PPU physics processing unit 1325PQC post-quantum cryptography 1326PRAM Parameter RAM 1327PRBS pseudorandom bit sequence 1328PRF pseudorandom function [family] 1329PRG pseudorandom generator 1330PRML partial response, maximum likelihood 1331PRN pseudorandom {noise,number} 1332PRNG pseudorandom number generator 1333PROM programmable read only memory 1334PRP pseudorandom permutation 1335PRU Programmable Realtime Unit 1336PS PostScript 1337PSD power spectral density 1338PSE page size extensions 1339PSK phase shift keying 1340PSK pre-shared key 1341PSTN public switched telephone network 1342PSW program status word 1343PTE page table entry 1344PTLA pseudo top level aggregator 1345PTP page table page 1346PTV perceived target value 1347PU processing unit 1348PUC personal unblocking code 1349PUN physical unit number 1350PV physical volume 1351PVC permanent virtual circuit 1352PVG physical volume group 1353PVI protected-mode virtual interrupt 1354PVRST Per-VLAN rapid spanning tree 1355PVST Per-VLAN Spanning Tree 1356PWM pulse width modulation 1357PXE preboot execution environment 1358QA quality assurance 1359QAM quadrature amplitude modulation 1360QAM quality assurance management 1361QBE query by example 1362QC quality control 1363QCIF quarter common intermediate format 1364QDI quasi delay insensitive 1365QOI quality of implementation 1366QOI quick order interface 1367QOS quality of service 1368QUIC Quick UDP Internet Connections 1369QVL qualified vendor list 1370R/O read only 1371R/W read/write 1372RA receiver address 1373RA remote assistance 1374RA resource affinity 1375RA router advertisement 1376RAD rapid application development 1377RADIUS remote authentication dial-in user service 1378RAID redundant array of {independent,inexpensive} disks 1379RAII resource acquisition is initialization 1380RAM random access memory 1381RAS reliability, availability and serviceability 1382RAS remote access service 1383RAS restartable atomic sequence 1384RAS row address strobe 1385RAT register allocation table 1386RAT remote access trojan 1387RBF radial basis function 1388RBL real-time blackhole list 1389RBL reputation block list 1390RBNF routing backus-naur form 1391RBT red-black tree 1392RC release candidate 1393RC remote control 1394RC run commands 1395RCS Revision Control System 1396RCU read, copy, update 1397RDB Rigid Disk Block 1398RDBMS relational database management system 1399RDF Resource Description Framework 1400RDM relational data model 1401RDMA remote direct memory access 1402RDP remote desktop protocol 1403RDRAM Rambus DRAM 1404RE regular expression 1405REPL read, evaluate, print, loop 1406REST representational state transfer 1407RF radio frequency 1408RFB remote frame buffer 1409RFI radio frequency interference 1410RFO request for ownership 1411RFU reserved for future use 1412RGB red green blue 1413RGBA red green blue alpha 1414RGMII reduced gigabit media independent interface 1415RH read hit 1416RHEL Red Hat Enterprise Linux 1417RHL Red Hat Linux 1418RIB routing information base 1419RIFF Resource Interchange File Format 1420RIP Raster Image Processor 1421RIP Routing Information Protocol 1422RIR regional Internet registry 1423RISC reduced instruction set {computer,computing} 1424RKM ROM Kernel Manual 1425RLE run length encoding 1426RLL run length limited 1427RLO right-to-left override 1428RM read miss 1429RMCP Remote Management Control Protocol 1430RMI remote method invocation 1431RMO Relaxed Memory Ordering 1432RMPM rapid memory power management 1433RMS root mean square 1434RMW read, modify, write 1435RNG random number generator 1436ROA route origin authorization 1437ROM read only memory 1438ROP return-oriented programming 1439RPC remote procedure call 1440RPG Report Program Generator 1441RPKI resource PKI 1442RPL requested privilege level 1443RPM revolutions per minute 1444RPN reverse Polish notation 1445RPVST Rapid Per-VLAN Spanning Tree 1446RR random replacement 1447RR round robin 1448RS relay station 1449RSA Rivest, Shamir, [and] Adleman 1450RSC Receive Segment Coalescing 1451RSIP Realm Specific IP 1452RSN Robust Secure Network 1453RSS Receive Side Scaling 1454RSS really simple syndication 1455RSS residual sum of squares 1456RSTP Rapid Spanning Tree Protocol 1457RT real time 1458RTC real time clock 1459RTC real time computing 1460RTF rich text format 1461RTL register transfer language 1462RTL resistor-transistor logic 1463RTL right to left 1464RTM restricted transactional memory (Intel) 1465RTOS real time operating system 1466RTP Real-time Transport Protocol 1467RTS request to send 1468RTT round trip time 1469RTTI run-time type information 1470RUP rational unified process 1471RW Rabin-Williams 1472RWM read-write memory 1473RX {receive,receiver} 1474S/PDIF Sony/Philips Digital Interface Format 1475SA security advisory 1476SA security association 1477SA source address 1478SA structured analysis 1479SAAS software as a service 1480SABRE Semi-automated business research environment 1481SACD super audio compact disc 1482SAD security association database 1483SAF-TE SCSI accessed fault-tolerant enclosure 1484SAGE Semi-automated ground environment 1485SAL {service,system} abstraction layer 1486SAM serial access memory 1487SAM sum addressed memory 1488SAML security assertion markup language 1489SAN storage area network 1490SAP service access point 1491SAPIC streamlined advanced programmable interrupt controller 1492SASD structured analysis, structured design 1493SASI Shugart Associates System Interface 1494SASL simple authentication [and] security layer 1495SATA serial advanced technology attachment 1496SAX simple API for XML 1497SB sound blaster 1498SBSA server base system architecture 1499SBU standard build unit 1500SC store conditional 1501SCA source code analyzer 1502SCADA supervisory control and data acquisition 1503SCC single chip cloud 1504SCC source code control 1505SCCP skinny call control protocol 1506SCCS Source Code Control System 1507SCI scalable coherent interface 1508SCI system control interrupt 1509SCIM smart common input method 1510SCM software configuration management 1511SCM source code management 1512SCM storage-class memory 1513SCO synchronous connection orientated 1514SCP secure copy 1515SCP system control processor 1516SCPI system control and power interface 1517SCSI Small Computer System Interface 1518SCTP Stream Control Transmission Protocol 1519SDDC software defined data center 1520SDEI software delegated exception interface 1521SDI symbol deinterleave 1522SDK software development kit 1523SDL Simple Declarative Language 1524SDL Simple Direct-media Layer 1525SDLC {software,system,systems} development life cycle 1526SDN software defined networking 1527SDP Session Description Protocol 1528SDR software defined radio 1529SDRAM synchronous dynamic random access memory 1530SDS software defined storage 1531SDT syntax-directed translation 1532SEA synchronous external abort 1533SED self-encrypting drive 1534SED stream editor 1535SEGV segmentation violation 1536SEMB serial ATA enclosure management bridge 1537SEO search engine optimization 1538SES SCSI enclosure services 1539SFC sequential function chart 1540SFI simple firmware interface 1541SFI software fault isolation 1542SFP small form-factor pluggable 1543SFTP SSH File Transfer Protocol 1544SFTP Serial File Transfer Protocol 1545SFTP Simple File Transfer Protocol 1546SGI Silicon Graphics, Inc 1547SGI software generated interrupt 1548SGMII serial gigabit media independent interface 1549SGPIO serial general purpose input/output 1550SGRAM synchronous graphics random access memory 1551SHA secure hash algorithm 1552SICP structure and interpretation of computer programs 1553SIDH supersingular isogeny Diffie-Hellman 1554SIEM security information and event management 1555SIF source input format 1556SIFS short inter-frame space 1557SIM subscriber identity module 1558SIMD single instruction, multiple data 1559SIMM single inline memory module 1560SIP Session Initiation Protocol 1561SIR signal-to-interference ratio 1562SIR slow infrared 1563SIRT security incident response team 1564SISD single instruction, single data 1565SIV synthetic intialization vector 1566SLAAC stateless address auto-configuration 1567SLC single-level cell 1568SLDRAM synchronous-link dynamic random access memory 1569SLED single large expensive disk 1570SLI scalable link interface 1571SLI scan-line interleave 1572SLIC system license internal code 1573SLOC source lines of code 1574SLRU segmented LRU 1575SMA smart memory access 1576SMAF system management action field 1577SMAP Simple Mail Access Protocol 1578SMAP supervisor mode access prevention 1579SMART self-monitoring analysis and reporting technology 1580SMB Server Message Block 1581SMB system management bus 1582SMBIOS System Management BIOS 1583SMC system management controller 1584SMD storage module device 1585SMEP supervisor mode execution protection 1586SMF single mode fiber 1587SMI structure of management information 1588SMI system management interrupt 1589SMM system management mode 1590SMP serial management protocol 1591SMP symmetric multiprocessing 1592SMR shingled magnetic recording 1593SMR state machine replication 1594SMT simultaneous multithreading 1595SMTP Simple Mail Transfer Protocol 1596SMU system management unit 1597SNA systems network architecture 1598SNAP Sub-Network Access Protocol 1599SNIA Storage Networking Industry Association 1600SNMP Simple Network Management Protocol 1601SNR signal-to-noise ratio 1602SOA service oriented architecture 1603SOAP Simple Object Access Protocol 1604SOC security operations center 1605SOC system on chip 1606SOF start of frame 1607SOH start of header 1608SOHO small office/home office 1609SOL serial over LAN 1610SOM system on module 1611SP service pack 1612SP stack pointer 1613SPA storage pool allocator 1614SPAN switched port analyzer 1615SPARC scalable processor architecture 1616SPARQL SPARQL Protocol and RDF Query Language 1617SPD security policy database 1618SPD serial presence detect 1619SPDIF Sony/Philips digital interface format 1620SPI serial peripheral interface 1621SPI stateful packet inspection 1622SPIR standard portable intermediate representation 1623SPL secondary program loader 1624SPL spinlock 1625SPL system interrupt priority level 1626SPMD single process, multiple data 1627SPR special purpose register 1628SPT sectors per track 1629SQA software quality assurance 1630SQCIF sub quarter common intermediate format 1631SQL Structured Query Language 1632SRAM static random access memory 1633SRC sample rate conversion 1634SRP SCSI RDMA protocol 1635SRR shaped round robin 1636SRTP Secure Real-time Transport Protocol 1637SS self-snoop 1638SS stack segment 1639SSA static single assignment 1640SSAP source service access point 1641SSB single-sideband modulation 1642SSB speculative store bypass 1643SSBB speculative store bypass barrier (Arm) 1644SSBD speculative store bypass disable (Intel) 1645SSC spread spectrum clock 1646SSD solid state drive 1647SSE streaming SIMD extensions 1648SSFDC solid state floppy disc card 1649SSH secure shell 1650SSI server side includes 1651SSID service set identifier 1652SSL secure sockets layer 1653SSP stack smashing protection 1654SSRF server-side request forgery 1655SSTP secure socket tunneling protocol 1656STC software thermal control 1657STD state transition diagram 1658STM software transactional memory 1659STOMP Streaming Text Oriented Messaging Protocol 1660STP Spanning Tree Protocol 1661STP shielded twisted pair 1662STRG spanning tree root guard 1663SUN Stanford University Network 1664SUS Single Unix Specification 1665SUT system under test 1666SVC switched virtual circuit 1667SVG scalable vector graphics 1668SVGA Super Video Graphics Array 1669SVI {switch,switched} virtual interface 1670SVM secure virtual machine 1671SVM support vector machine 1672SVR System V Release 1673SVS Separate Virtual Space 1674SWF Shockwave Flash 1675SWIG simplified wrapper [and] interface generator 1676SYR symbol timing recovery 1677TA test assertion 1678TA transmitter address 1679TAA transactional asynchronous abort (Intel) 1680TACACS terminal access controller access-control system 1681TAI international atomic time 1682TAO track at once 1683TAOCP The Art of Computer Programming 1684TAP Test Anything Protocol 1685TAS test and set 1686TB terabyte 1687TBNF transitional backus-naur form 1688TCB trace capture buffer 1689TCB trusted computing base 1690TCC thermal control circuit 1691TCL tool command language 1692TCP Transmission Control Protocol 1693TCQ tagged command queueing 1694TDC time [to] digital converter 1695TDD test-driven development 1696TDD time division duplex 1697TDM time division multiplexing 1698TDMA time division multiple access 1699TDOA time difference of arrival 1700TDP thermal design {point,power} 1701TDR time-domain reflectometry 1702TECO Text Editor and Corrector 1703TEE Trusted Execution Environment 1704TFT thin film transistor 1705TFTP Trivial File Transfer Protocol 1706TIAS try it and see 1707TIFF tagged image file format 1708TITS try it to see 1709TK temporal key 1710TKIP Temporal Key Integrity Protocol 1711TLA top level aggregator 1712TLB translation lookaside buffer 1713TLD top level domain 1714TLER time-limited error recovery 1715TLI transport layer interface 1716TLS thread local storage 1717TLS transport layer security 1718TM Turing machine 1719TM thermal monitor 1720TMDS transition minimized differential signaling 1721TMG transmogrifier 1722TMO timeout 1723TOD time of day 1724TOE TCP offload engine 1725TOFU trust on first use 1726TOS terms of service 1727TOS trusted operating system 1728TOS type of service 1729TOTP time-based one time password 1730TP transaction processing 1731TPI tracks per inch 1732TPM transactions per minute 1733TPM trusted platform module 1734TPR task priority register 1735TPS transactions per second 1736TPS transmission parameters signaling 1737TR task register 1738TR token ring 1739TRL timing recovery loop 1740TRNG true random number generator 1741TS terminal services 1742TS time series 1743TS time stamp 1744TS transport stream 1745TSAN Thread Sanitizer 1746TSC time stamp counter 1747TSD time stamp disable 1748TSDB time series database 1749TSL test, set, lock 1750TSO TCP segmentation offload 1751TSO Total Store Ordering 1752TSO time sharing option 1753TSP Time-Stamp Protocol 1754TSP Tunnel Setup Protocol 1755TSP time synchronization protocol 1756TSP traveling salesman problem 1757TSS task state segment 1758TSV tab-separated values 1759TSX transaction synchronization extensions (Intel) 1760TTL time to live 1761TTL transistor-transistor logic 1762TTM translation table maps 1763TTY teletype 1764TU translation unit 1765TUI {terminal,text-based,textual} user interface 1766TX {transmit out,transmitter} 1767TXG transaction group 1768TZ time zone 1769UAC user {access,account} control 1770UAF use-after-free 1771UART universal asynchronous receiver/transmitter 1772UAT user acceptance testing 1773UB undefined behavior 1774UBSAN Undefined Behavior Sanitizer 1775UC uncacheable 1776UCS unified computing system 1777UCS uniform-cost search 1778UCS universal coded character set 1779UDI uniform driver interface 1780UDMA ultra DMA 1781UDO ultra density optical 1782UDP User Datagram Protocol 1783UDS Unix Domain Socket 1784UEFI unified extensible firmware interface 1785UFO UDP fragmentation offload 1786UFS Unix File System 1787UGA universal graphics adapter 1788UI unit interval 1789UI user interface 1790UICC universal integrated circuit card 1791UID unique identifier 1792UID user identifier 1793UL upload 1794UMA uniform memory access 1795UMA upper memory area 1796UMB upper memory block 1797UML unified modeling language 1798UMPC ultra-mobile PC 1799UPNP universal plug and play 1800UPS uninterruptible power supply 1801URI uniform resource identifier 1802URL uniform resource locator 1803URN uniform resource name 1804USART universal synchronous/asynchronous receiver/transmitter 1805USB universal serial bus 1806USWC uncacheable speculative write combining 1807UT unit test 1808UTC coordinated universal time 1809UTF unicode transformation formats 1810UTP unshielded twisted pair 1811UTS UNIX time-sharing 1812UUCP Unix-to-Unix Copy Protocol 1813UUID universally unique identifier 1814UUOC useless use of cat 1815UUT unit under test 1816UX user experience 1817VA vertical alignment 1818VA virtual address 1819VA volt-ampere 1820VAX virtual address extension 1821VB Visual Basic 1822VBR volume boot record 1823VCA variable-gain amplifier 1824VCC common collector voltage 1825VCCP virtual chassis control protocol 1826VCF voltage-controlled filter 1827VCM virtual channel memory 1828VCO voltage-controlled oscillator 1829VCP virtual chassis port 1830VCS version control system 1831VDP vulnerability disclosure policy 1832VDPAU Video Decode and Presentation API for Unix 1833VES virtual execution system 1834VESA Video Electronics Standards Association 1835VFO variable-frequency oscillator 1836VFS virtual file system 1837VG volume group 1838VGA Video Graphics Array 1839VHDCI very high density cable interconnect 1840VID {VLAN,voltage level} identifier 1841VIM Vi IMproved 1842VIPT virtually indexed, physically tagged 1843VIVT virtually indexed, virtually tagged 1844VLAN virtual local area network 1845VLD variable-length decoding 1846VLIW very long instruction word 1847VLSI very large scale integration 1848VLSM variable length subnet mask 1849VM virtual {machine,memory} 1850VME virtual mode extension 1851VMX vector multimedia extensions 1852VMX virtual machine extensions 1853VNC virtual network computing 1854VOD video on demand 1855VPD vital product data 1856VPN virtual private network 1857VPWS virtual private wire service 1858VR virtual reality 1859VRAM video random access memory 1860VRF virtual routing and forwarding 1861VRM voltage regulator module 1862VROC Virtual RAID On CPU 1863VRRP Virtual Router Redundancy Protocol 1864VSTP VLAN Spanning Tree Protocol 1865VTP VLAN Trunking Protocol 1866VXFS Veritas file system 1867VXVM Veritas volume manager 1868W watt 1869W3C World Wide Web Consortium 1870WAFL write anywhere file layout 1871WAMP Web Application Messaging Protocol 1872WAN wide area network 1873WAP Wireless Application Protocol 1874WAP wireless access point 1875WDDM Windows Display Driver Model 1876WDM Windows Driver Model 1877WDT watchdog timer 1878WEP Wired Equivalent Privacy 1879WFI wait for interrupt 1880WFQ weighted fair queuing 1881WH write hit 1882WHEA Windows hardware error architecture 1883WIFI wireless fidelity 1884WLAN wireless local area network 1885WM write miss 1886WMF Windows meta file 1887WMI Windows Management Instrumentation 1888WOL Wake-on-LAN 1889WOM Wake-on-Modem 1890WOR Wake-on-Ring 1891WORM write once read many 1892WP WordPerfect 1893WP word processor 1894WP write protect 1895WPA Wi-Fi Protected Access 1896WPA2 Wi-Fi Protected Access II 1897WPAD web proxy auto-discovery protocol 1898WPS Wi-Fi Protected Setup 1899WRAM window random access memory 1900WS web services 1901WTC write through caching 1902WTD weighted tail drop 1903WWAN wireless wide area network 1904WWW world wide web 1905WYSIAYG what you see is all you get 1906WYSIWYG what you see is what you get 1907XBAR crossbar 1908XDMCP X Display Manager control protocol 1909XER XML encoding rules 1910XGA Extended Graphics Array 1911XHR XMLHttpRequest 1912XIP execute in place 1913XML Extensible Markup Language 1914XNA XNA's not acronymed 1915XNS Xerox network systems 1916XOR exclusive or 1917XP extreme programming 1918XSI X/Open System Interface 1919XSL extensible stylesheet language 1920XSLT extensible stylesheet language transformations 1921XSS cross site scripting 1922XT extended technology 1923XTACACS extended terminal access controller access-control system 1924XTI X/Open transport interface 1925XUL XML user interface language 1926YACC yet another compiler compiler 1927YAML YAML ain't markup language 1928YANG yet another next generation 1929YAWPFAPR you are welcome; please file a problem report 1930YP Yellow Pages 1931YTD year to date 1932ZAP ZFS attribute processor 1933ZBR zone bit recording 1934ZFOD zero-filled on demand 1935ZFS zettabyte file system 1936ZIF zero insertion force 1937ZIFS zero insertion force socket 1938ZIL ZFS intent log 1939ZMA zone multicast address 1940ZOI zero one infinity 1941ZOI zone of influence 1942ZPL ZFS Posix layer 1943ZVOL ZFS Volume 1944