acronyms.comp revision 1.223
1$NetBSD: acronyms.comp,v 1.223 2019/01/07 18:48:07 sevan Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABI application binary interface 8ABR available bit rate 9ABRT automatic bug reporting tool 10AC alternating current 11ACI adjacent channel interferer 12ACID atomicity, consistency, isolation, durability 13ACK Amsterdam compiler kit 14ACK acknowledgement 15ACL access control list 16ACL active current loop 17ACL asynchronous connection less 18ACP auxiliary control {process,program} 19ACPI advanced configuration and power interface 20ACS access control set 21ACU automatic calling unit 22ADB Apple desktop bus 23ADC analog [to] digital converter 24ADD acronym driven development 25ADO active data objects 26ADP automatic data processing 27ADPCM adaptive differential pulse code modulation 28ADS alternate data stream 29ADSL asymmetric digital subscriber line 30ADT abstract data type 31AER advanced error reporting 32AES Advanced Encryption Standard 33AFP Apple Filing Protocol 34AFS Andrew File System 35AGC automatic gain control 36AGP accelerated graphics port 37AI analog input 38AI artificial intelligence 39AL access list 40AL active link 41ALE address latch enable 42ALS ambient light sensor 43ALU arithmetic and logical unit 44ALUA asymmetric logical unit access 45AM access method 46AM alignment mask 47AM amplitude modulation 48AMD Advanced Micro Devices Inc 49AMDD Agile model-driven development 50AMI alternate mark inversion 51AMP asymmetric multiprocessing 52AMQP advanced message queuing protocol 53AMT active management technology 54AN Arabic number 55ANR application not responding 56ANSI American National Standards Institute 57AO analog output 58AOL Alert-on-LAN 59AOS add or subtract 60AP access point 61AP application processor 62API application programming interface 63APEI ACPI platform error interface 64APIC advanced programmable interrupt controller 65APIPA automatic private IP addressing 66APM advanced power management 67APM application performance management 68APU accelerated processing unit 69APT advanced persistent threat 70AQM active queue management 71ARAT always running APIC timer 72ARC adaptive replacement cache 73ARC Advanced RISC Computing 74ARC automatic reference counting 75ARM Advanced RISC Machines 76ARP Address Resolution Protocol 77ARPA Advanced Research Projects Agency 78ARQ automatic repeat request 79ARR address range register 80ARU audio response unit 81AS autonomous system 82ASA Adaptive Security Appliance 83ASAN Address Sanitizer 84ASC advanced smart cache 85ASCII American Standard Code for Information Interchange 86ASD agile software development 87ASE advanced software environment 88ASF alert standard format 89ASIC application-specific integrated circuit 90ASK amplitude shift keying 91ASLR address space layout randomization 92ASN autonomous system number 93ASPM active state power management 94ASQ automated software quality 95ASR address space register 96AST abstract syntax tree 97AST asynchronous system trap 98AT access time 99AT advanced technology 100ATA advanced technology attachment 101ATAPI advanced technology attachment packet interface 102ATC address translation cache 103ATM asynchronous transfer mode 104ATX advanced technology extended 105AV anti virus 106AVL Adelson-Velsky-Landis 107AVX advanced vector extensions 108BA byte align 109BAL basic assembly language 110BAR base address register 111BBS bulletin board system 112BCC blind carbon copy 113BCD binary coded decimal 114BCR byte count register 115BCS base configuration space 116BD baud 117BDD binary decision diagram 118BDI bit deinterleave 119BDUF big design up front 120BEDO burst extended data output 121BER basic encoding rules 122BER bit error {rate,ratio} 123BERT boot error record table 124BFD binary {file,format} descriptor 125BFKL big fscking kernel lock 126BFS breadth-first search 127BFT binary file transfer 128BGA ball grid array 129BGP Border Gateway Protocol 130BGPSEC BGP Security 131BIND Berkeley Internet Name Daemon 132BIOS Basic Input/Output System 133BIOS built-in operating system 134BIST built-in self-test 135BIU bus interface unit 136BKDG BIOS and kernel developer's guide 137BLAS basic linear algebra subprograms 138BLC back light control 139BLOB binary large object 140BM bus master 141BMC baseboard management controller 142BMIC bus master interface controller 143BN boundary neutral 144BNF Backus-Naur form 145BO binary output 146BOF beginning of file 147BOM beginning of message 148BOM byte order mark 149BP base pointer 150BP boot processor 151BPB BIOS parameter block 152BPDU bridge protocol data unit 153BPF Berkeley Packet Filter 154BPI bits per inch 155BPM business process modelling 156BPS bits per second 157BPSK binary phase shift keying 158BQS Berkeley quality software 159BRE basic regular expression 160BS backspace 161BS binary sequence 162BSA basic service area 163BSD Berkeley Software Distribution 164BSDP Boot Service Discovery Protocol 165BSF bit scan forward 166BSOD blue screen of death 167BSP binary space partition 168BSP board support package 169BSP bootstrap processor 170BSR bit scan reverse 171BSS basic service set 172BSS block started by symbol 173BSSID basic service set identifier 174BT BitTorrent 175BT Bluetooth 176BT bit test 177BTC bit test [and] complement 178BTR bit test [and] reset 179BTS bit test [and] set 180BTS bug tracking system 181BW bandwidth 182BWM block-write mode 183BUAG big ugly ASCII graphic 184CA certificate authority 185CAD computer-aided design 186CAM computer assisted manufacturing 187CAM conditional access module 188CAM content addressable memory 189CARP Common Address Redundancy Protocol 190CAS column address strobe 191CAS compare and swap 192CAS computer algebra system 193CASE computer aided software engineering 194CAU control access unit 195CAV constant angular velocity 196CBC cipher block chaining 197CBR constant bit rate 198CC carbon copy 199CCD charge coupled device 200CCI co-channel interferer 201CCNUMA cache-coherent non-uniform memory access 202CD cache disable 203CD compact disc 204CDDA compact disc digital audio 205CDMA code division multiple access 206CDP Cisco Discovery Protocol 207CDRAM cache dynamic random access memory 208CER canonical encoding rules 209CF compact flash 210CFB cipher feedback 211CFG context-free grammar 212CFG control-flow graph 213CFI control-flow integrity sanitizer 214CG control gate 215CGA Color Graphics Adapter 216CGI common gateway interface 217CGN Carrier-Grade NAT 218CHAP Challenge-Handshake Authentication Protocol 219CHS cylinder/head/sector 220CI continuous integration 221CI {common,component} interface 222CIDR Classless Inter-Domain Routing 223CIF common intermediate format 224CIFS Common Internet File System 225CIL common intermediate language 226CIR carrier-to-interference ratio 227CIS contact image sensor 228CISC complex instruction set {computer,computing} 229CJK Chinese, Japanese, [and] Korean 230CLF common log format 231CLI command line interface 232CLR common language runtime 233CLTT closed loop thermal throttling 234CLUT color look-up table 235CLV constant linear velocity 236CM configuration management 237CMA concert multithread architecture 238CMC chassis management controller 239CMC corrected machine check 240CMS {configuration,content,course} management system 241CMI control {management,method} interface 242CMOS complementary metal-oxide-semiconductor 243CMP chip multi-processing 244CMS content management system 245CMYK cyan magenta yellow black 246CN {common,canonical} name 247CNC computer numerical control 248CNR carrier-to-noise ratio 249COF current operating frequency 250COFDM coded orthogonal frequency division multiplexing 251COFF common object file format 252COM component object model 253COMA cache-only memory architecture 254CORBA common object request broker architecture 255COS class of service 256COW copy-on-write 257CP continuous pilot 258CPB core performance boost 259CPC central processor complex 260CPC cpu performance counters 261CPE common phase error 262CPE common platform enumeration 263CPER common platform error record 264CPG clock pulse generator 265CPI cycles per instruction 266CPL current privilege level 267CPLD complex programmable logic device 268CPP C preprocessor 269CPS characters per second 270CPT command pass through 271CPU central processing unit 272CR carriage return 273CRC cyclic redundancy check 274CRL carrier recovery loop 275CRLF carriage return line feed 276CRT cathode ray tube 277CRUD create, read, update, and delete 278CS cable select 279CS chip select 280CS code segment 281CS computer science 282CSDL {common,conceptual} schema definition language 283CSI channel state information 284CSI common system interface 285CSMA carrier sense multiple access 286CSMA/CA carrier sense multiple access with collision avoidance 287CSMA/CD carrier sense multiple access with collision detection 288CSR control [and] status registers 289CSRG Computer Systems Research Group 290CSS cascading style sheets 291CSV comma-separated values 292CTM close to metal 293CTR counter [mode] 294CTS clear to send 295CUA common user access 296CUT coordinated universal time 297CV control voltage 298CVE common vulnerabilities and exposures 299CVS Concurrent Versions System 300DA destination address 301DAA distributed application architecture 302DAB digital audio broadcasting 303DAC digital [to] analog converter 304DAC discretionary access control 305DAD duplicate address detection 306DANE DNS-based Authentication of Named Entities 307DAO disk at once 308DAP Directory Access Protocol 309DAT digital audio tape 310DAT dynamic acceleration technology 311DB database 312DBA database administrator 313DBA dynamic bandwidth allocation 314DBB data bus buffer 315DBC design by contract 316DBL dynamic buffer limiting 317DBMS database management system 318DBS database server 319DC direct current 320DCC Direct Client-to-Client 321DCC direct cable connect 322DCD data carrier detect 323DCE data control equipment 324DCE distributed computing environment 325DCIM data center infrastructure management 326DCIM digital camera images 327DCL Digital Command Language 328DCOM distributed component object model 329DCOP Desktop COmmunication Protocol 330DCS data collection systems 331DCT discrete cosine transform 332DCU data cache unit 333DDC display data channel 334DDE dynamic data exchange 335DDK device driver kit 336DDL data description language 337DDR double data rate 338DDS direct digital sound 339DDWG Digital Display Working Group 340DE debugging extensions 341DE desktop environment 342DEA data encryption algorithm 343DEC Digital Equipment Corporation 344DEK data encryption key 345DEP data execution prevention 346DER distinguished encoding rules 347DES Data Encryption Standard 348DF don't fragment 349DFA deterministic finite automaton 350DFC data flow control 351DFS depth first search 352DFS distributed file system 353DFSAN Data Flow Sanitizer 354DFT diagnostic function test 355DFT discrete Fourier transform 356DGL data generation language 357DH Diffie-Hellman 358DHCP Dynamic Host Configuration Protocol 359DIFS distributed inter-frame space 360DIMM dual inline memory module 361DIRT design in real time 362DL diode logic 363DL discrete logarithm 364DL download 365DLE data link escape 366DLL dynamic link library 367DLP discrete logarithm problem 368DMA direct memory access 369DMI desktop management interface 370DMS document management system 371DMT discrete multitone modulation 372DMU data management layer 373DNARD Digital network appliance reference design 374DND drag and drop 375DNS Domain Name System 376DNSSEC DNS Security Extensions 377DOE distributed object environment 378DOF data over fibre 379DOM document object model 380DOS denial of service 381DOS disk operating system 382DP DisplayPort 383DPC deferred procedure call 384DPCM differential pulse code modulation 385DPD dead peer detection 386DPI deep packet inspection 387DPI dots per inch 388DPL descriptor privilege level 389DPS Display PostScript 390DPST display power savings technology 391DRAAS disaster recovery as a service 392DRAM dynamic random access memory 393DRBG deterministic random bit generator 394DRI direct rendering infrastructure 395DRM digital rights management 396DRRS display refresh rate switching 397DS debug store 398DSA digital signature algorithm 399DSAP destination service access point 400DSB double-sideband modulation 401DSDT differentiated system descriptor table 402DSL dataset and snapshot layer 403DSL digital subscriber line 404DSL domain specific language 405DSLAM digital subscriber line access multiplexer 406DSN delivery status notification 407DSO dynamic shared object 408DSP digital signal processor 409DSSS direct sequence spread spectrum 410DTD document type definition 411DTE data terminal equipment 412DTE dumb terminal emulator 413DTL diode-transistor logic 414DTLS datagram transport layer security 415DTS digital thermal sensor 416DUT device under test 417DVB digital video broadcasting 418DVCS distributed version control system 419DVD digital versatile disc 420DVFS dynamic voltage and frequency scaling 421DVI device independent 422DVI Digital Visual Interface 423DVR digital video recorder 424E-XER extended XML encoding rules 425EABI embedded-application binary interface 426EAI Email Address Internationalization 427EAI Enterprise Application Integration 428EAP Extensible Authentication Protocol 429EAPOL EAP over Lan 430EBCDIC Extended Binary Coded Decimal Interchange Code 431EBDA Extended BIOS Data Area 432EBR extended boot record 433EC elliptic curve 434ECC elliptic curve cryptography 435ECC error correction code 436ECDH elliptic curve Diffie-Hellman 437ECDL elliptic curve discrete logarithm 438ECDLP elliptic curve discrete logarithm problem 439ECDSA elliptic curve digital signature algorithm 440ECL emitter-coupled logic 441ECN explicit congestion notification 442ECP enhanced capability port 443ECS enhanced chip set 444ECS extended configuration space 445EDAC error detection and correction 446EDAT enhanced dynamic acceleration technology 447EdDSA Edwards curve digital signature algorithm 448EDGE explicit data graph execution 449EDID extended display identification data 450EDO extended data out 451EDS electronical data sheet 452EEE energy efficient ethernet 453EEPROM electrically erasable programmable read only memory 454EFI extensible firmware interface 455EFL emitter follower logic 456EFM eight to fourteen modulation 457EGA Enhanced Graphics Adapter 458EGP exterior gateway protocol 459EH extension header 460EIDE enhanced IDE 461EISA extended industry standard architecture 462EINJ error injection table 463ELF executable and linking format 464ELS entry level system 465EMI electro-magnetic interference 466EMP electro-magnetic pulse 467EMR electro-magnetic radiation 468EMACS Editor MACroS 469EOF end of file 470EOI end of interrupt 471EOL end of line 472EOT end of transmission 473EPIC explicitly parallel instruction computing 474EPP enhanced parallel port 475EPRML extended partial response, maximum likelihood 476EPROM erasable programmable read only memory 477ERD emergency recovery disk 478ERD entity relationship diagram 479ERE extended regular expression 480ERST error record serialization table 481ESAN Efficiency Sanitizer 482ESB enterprise service bus 483ESDRAM enhanced synchronous dynamic random access memory 484ESS electronic switching system 485ESS extended service set 486ESSID extended service set identifier 487EST enhanced speedstep 488ETL extract, transform, load 489EU execution unit 490EULA end user license agreement 491FAT file allocation table 492FBRAM frame buffer random access memory 493FCIF full common intermediate format 494FCL fiber channel loop 495FCS frame check sequence 496FDC floppy disk controller 497FDD floppy disk drive 498FDDI fiber distributed data interface 499FDE full disk encryption 500FDT flattened device tree 501FEA finite element analysis 502FEC forward error correction 503FET field-effect transistor 504FF finite field 505FF form feed 506FFDH finite-field Diffie-Hellman 507FFH functional fixed hardware 508FFI foreign function interface 509FFM focus follows mouse 510FFS Fast File System 511FFS find first set 512FFT fast Fourier transform 513FG floating gate 514FHSS frequency hop spread spectrum 515FID frequency identifier 516FIFO first in, first out 517FILO first in, last out 518FIPS Federal Information Processing Standards 519FIR fast infrared 520FLOPS floating [point] operations per second 521FLOSS free/libre/open source software 522FM frequency modulation 523FMR false match rate 524FOSS free/open source software 525FPGA field programmable gate array 526FPM fast page mode 527FPR floating point register 528FPU floating point unit 529FQDN fully qualified domain name 530FRR false rejection rate 531FRU field replaceable unit 532FS file system 533FSB front side bus 534FSCK file system check 535FSF Free Software Foundation 536FSK frequency shift keying 537FSM finite-state machine 538FTA fault tree analysis 539FTL flash translation layer 540FTP File Transfer Protocol 541FTPS File Transfer Protocol Secure 542FUS fast user switching 543FWH firmware hub 544FWS folding white space 545GAL generic array logic 546GAS generic address structure 547GC garbage collector 548GCM Galois counter mode 549GCR group-coded recording 550GDI Graphics Device Interface 551GDT global descriptor table 552GEM graphics environment manager 553GEM graphics execution manager 554GENA general event notification architecture 555GHC Glasgow Haskell compiler 556GHES generic hardware error source 557GIC generic interrupt controller 558GID group identifier 559GIF graphics interchange format 560GMCH graphics and memory controller hub 561GNU GNU's Not Unix 562GOP graphics output protocol 563GOT global offset table 564GPE general purpose event 565GPF general protection fault 566GPG GNU Privacy Guard 567GPL [GNU] General Public License 568GPR general purpose register 569GPS generalized processor sharing 570GPT GUID partition table 571GPU graphics processing unit 572GR golden ratio 573GRE generic routing encapsulation 574GSI global system interrupt 575GUI graphical user interface 576GUID globally unique identifier 577GVFS git virtual file system 578HA high availability 579HAL hardware abstraction layer 580HAT hashed array tree 581HATEOAS hypermedia as the engine of application state 582HBA host bus adapter 583HCF halt and catch fire 584HCI host controller interface 585HCI human-computer interaction 586HCL hardware compatibility list 587HDCP High-bandwidth Digital Content Protection 588HDD hard disk drive 589HDL hardware description language 590HDMI High-Definition Multimedia Interface 591HDTV high-definition television 592HECI host embedded controller interface 593HEST hardware error source table 594HF high frequency 595HFM highest frequency mode 596HID human interface device 597HKP HTTP Keyserver Protocol 598HLL high-level language 599HMA high memory area 600HMI human-machine interface 601HOOD hierarchical object oriented design 602HP Hewlett-Packard 603HPC high performance computing 604HPET high precision event timer 605HSM hardware security module 606HSM hierarchical storage management 607HT hyper-threading 608HTC hardware thermal control 609HTCC high temperature co-fired ceramic 610HTML HyperText Markup Language 611HTT hyper-threading technology 612HTTP Hypertext Transfer Protocol 613HTTPS Hypertext Transfer Protocol Secure 614HVM hardware virtual machine 615HVDS High-Voltage Differential Signaling 616HWASAN Hardware-assisted Address Sanitizer 617HZ Hertz 618I2O intelligent input/output 619IA information assurance 620IAAS infrastructure as a service 621IANA Internet Assigned Numbers Authority 622IBC iterated block cipher 623IBM International Business Machines 624IBS instruction based sampling 625IBSS independent basic service set 626IC integrated circuit 627ICA independent computer architecture 628ICB Internet Citizen's Band 629ICE in-circuit emulator 630ICE internal compiler error 631ICH I/O controller hub 632ICMP Internet Control Message Protocol 633ICT information and communications technology 634ICW initialization command word 635IDA Intel dynamic acceleration 636IDCMP Intuition direct communication message port 637IDE integrated development environment 638IDE integrated drive electronics 639IDPS intrusion detection [and] prevention system 640IDRP inter-domain routing protocol 641IDS intrusion detection system 642IDT interrupt descriptor table 643IE Internet Explorer 644IEC International Electrotechnical Commission 645IEEE Institute of Electrical and Electronics Engineers 646IESG Internet Engineering Steering Group 647IETF Internet Engineering Task Force 648IF intermediate frequency 649IFCM isochronous flow control mode 650IFF Interchange File Format 651IFS internal field separator 652IGD Internet gateway device 653IGMP Internet Group Management Protocol 654IGP interior gateway protocol 655IHV independent hardware vendor 656IKE Internet key exchange 657ILM internal loopback mode 658ILOM integrated lights-out management 659ILP instruction level parallelism 660IM instant messaging 661IMAP Internet Message Access Protocol 662IMC integrated memory controller 663IMCR interrupt mode configuration register 664IMR interrupt mask register 665IMS information management system 666INCITS InterNational Committee for Information Technology Standards 667IO input/output 668IOCTL input/output control 669IOMMU input/output memory management unit 670IOT Internet of Things 671IP Internet Protocol 672IP intellectual property 673IPC instructions per cycle 674IPC interprocess communication 675IPE integrated programming environment 676IPI interprocessor interrupt 677IPL Initial Program Load 678IPL Interrupt Priority Level 679IPMB Intelligent Platform Management Bus 680IPMI Intelligent Platform Management Interface 681IPNG Internet Protocol, Next Generation 682IPS in-plane switching 683IPS intrusion prevention system 684IPSEC Internet Protocol Security 685IRC Internet Relay Chat 686IRDA infrared data association 687IRQ interrupt request 688IRQL interrupt request level 689IRR interrupt request register 690IRTF Internet Research Task Force 691IS information system 692ISA industry standard architecture 693ISA instruction set architecture 694ISDN integrated services digital network 695ISI inter-symbol interference 696ISM industrial, scientific, [and] medical 697ISN initial serial number 698ISO International Standards Organization 699ISOC Internet Society 700ISP Internet service provider 701ISR in-service register 702ISR interrupt service routine 703IST interrupt stack table 704ISV independent software vendor 705IT information technology 706ITB Intel Turbo Boost 707ITIL information technology infrastructure library 708ITP in-target probe 709ITSM IT service management 710IV initialization vector 711IVT interrupt vector table 712JBOD just a bunch of disks 713JFET junction [gate] field-effect transistor 714JIT just in time 715JPEG Joint Photographic Experts Group 716JRE Java Runtime Environment 717JSON JavaScript Object Notation 718JTAG joint test action group 719KASLR kernel address space layout randomization 720KB keyboard 721KB kilobyte 722KBD keyboard 723KBD kilobaud 724KCS keyboard controller style 725KLOC thousand lines of code 726KMS kernel-mode setting 727KPI kernel programming interface 728KVA kernel virtual address 729KVM kernel virtual machine 730KVM kernel virtual memory 731KVM keyboard, video, [and] mouse 732LAMP Linux Apache MySQL {Perl,PHP,Python} 733LAN local area network 734LAPIC local advanced programmable interrupt controller 735LAR load access rights 736LBA logical block addressing 737LBS location-based service 738LCD liquid crystal display 739LCP link control protocol 740LDA local delivery agent 741LDAP Lightweight Directory Access Protocol 742LDR light-dependent resistor 743LDT local descriptor table 744LE logical extent 745LED light emitting diode 746LELL low energy link layer 747LER label edge router 748LF line feed 749LF low frequency 750LFM lowest frequency mode 751LFN long file names 752LFO low-frequency oscillation 753LFS log-structured file system 754LFU least frequently used 755LHP loop heat pipe 756LIFO last in, first out 757LILO LInux LOader 758LILO last in, last out 759LINT local interrupt 760LIR local Internet registry 761LISP LISt Processor 762LISP Locator/ID Separation Protocol 763LKM {Linux,loadable} kernel module 764LKML Linux kernel mailing list 765LL load linked 766LL/SC load linked/store conditional 767LLC logical link control 768LLDP link layer discovery protocol 769LLF low level format 770LLMNR link-local multicast name resolution 771LLVM Low Level Virtual Machine 772LM long mode 773LMM link management mode 774LMP link management protocol 775LNO loop nest optimization 776LOC lines of code 777LOM lights-out management 778LPE Linux performance events 779LPC low pin count 780LPS local positioning system 781LRC longitudinal redundancy check 782LRM left-to-right mark 783LRO left-to-right override 784LRU least recently used 785LSAN Leak Sanitizer 786LSB Linux standards base 787LSB least significant {bit,byte} 788LSI large scale integration 789LSL load segment limit 790LSM log structured merge 791LSN Large Scale NAT 792LSN log sequence number 793LSR label switch router 794LTCC low temperature co-fired ceramic 795LTO linear tape-open 796LTO link time optimization 797LTR left to right 798LTR load task register 799LTR letter(-sized paper) 800LTS long term support 801LUA Lua Uppercase Accident 802LUN logical unit number 803LV logical volume 804LVM logical volume management 805LVT local vector table 806LVDS Low-Voltage Differential Signaling 807LWP light-weight process 808LZW Lempel Ziv Welch 809MAC mandatory access control 810MAC {media,medium} access control 811MAC message authentication {check,code} 812MADT multiple APIC descriptor table 813MB megabyte 814MBA multi-boot agent 815MBR master boot record 816MBS megabits per second 817MC memory controller 818MCA machine check architecture 819MCA MicroChannel architecture 820MCC multiversion concurrency control 821MCE machine check exception 822MCGA Multi-Color Graphics Array 823MCH memory controller hub 824MCM multi-chip module 825MCQ memory controlled queue 826MD machine-dependent 827MD-SAL model-driven service abstraction layer 828MDA mail delivery agent 829MDA Monochrome Display Adapter 830MDC Management Data Clock 831MDI Medium Dependent Interface 832MDI-X Medium Dependent Interface Crossover 833MDIO Management Data Input/Output 834MDMX MIPS Digital Media eXtension 835MDRAM multibank dynamic random access memory 836MESI modified, exclusive, shared, invalid 837MFC merge from current 838MFC Microsoft Foundation Classes 839MFM modified frequency modulation 840MI machine-independent 841MIB management information base 842MIC message integrity {check,code} 843MID mobile Internet device 844MIDI musical instrument digital interface 845MIF management information format 846MII media independent interface 847MIM man in the middle 848MIMD multiple instruction, multiple data 849MIME Multipurpose Internet Mail Extensions 850MIMO multiple input multiple output 851MIPS million instructions per second 852MIPS Microprocessor without Interlocked Pipeline Stages 853MISD multiple instruction, single data 854MIT Massachusetts Institute of Technology 855MITM man in the middle 856ML machine language 857ML machine learning 858ML mailing list 859ML markup language 860ML maximum likelihood 861MLC multi-level cell 862MLD multicast listener discovery 863MLHP micro loop heat pipe 864MMF multi-mode fiber 865MMIC monolithic microwave integrated circuit 866MMIO memory mapped input/output 867MMORPG massive multiplayer online role playing game 868MMU memory management unit 869MMX matrix math extension 870MMX multimedia extension 871MMX multiple math extension 872MO magneto-optical 873MOESI modified, owned, exclusive, shared, invalid 874MOF maximum operating frequency 875MOSFET metal-oxide-semiconductor field-effect transistor 876MOSI modified, owned, shared, invalid 877MP multi-platform 878MP multiplayer 879MP {multiprocessing,multiprocessor} 880MPEG moving picture experts group 881MPI message passing interface 882MPLS Multiprotocol Label Switching 883MPP massively parallel processor 884MPS memory pool system 885MPS multiprocessor specification 886MQTT Message Queuing Telemetry Transport 887MR modem ready 888MRU most recently used 889MS Microsoft 890MSAN Memory Sanitizer 891MSB most significant {bit,byte} 892MSC message sequence chart 893MSE mean square error 894MSF minutes seconds frames 895MSI message signaled interrupt 896MSI modified, shared, invalid 897MSR {machine state,model-specific} register 898MSS maximum segment size 899MSTP Multiple Spanning Tree Protocol 900MT machine translation 901MTA mail transfer agent 902MTBF mean time between failures 903MTP media transfer protocol 904MTRR memory type range register 905MTTF mean time to failure 906MTU maximum transmission unit 907MUA mail user agent 908MUD multi-user domain 909MVCC multiversion concurrency control 910MWE module width encoding 911MX mail exchange 912NACK negative acknowledgement 913NAN not a number 914NAPT Network Address Port Translation 915NAS network attached storage 916NAT network address translation 917NAV network allocation vector 918NC numerical control 919NCO numerically-controlled oscillator 920NCP Network Control Protocol 921NCQ native command queuing 922ND neighbor discovery 923NDFA nondeterministic finite automaton 924NE numeric error 925NEWS Network extensible Window System 926NFA nondeterministic finite automaton 927NFC near-field communication 928NFCI no functional change intended 929NFS network file system 930NFV network function virtualization 931NIA next instruction address 932NIC network information center 933NIC network interface card 934NIDS network intrusion detection system 935NIP network interface protocol 936NIPS network intrusion prevention system 937NIS network information service 938NIST National Institute of Standards and Technology 939NLS native language support 940NMI non-maskable interrupt 941NNTP Network News Transfer Protocol 942NOC network operations center 943NOP no operation 944NOS network operating system 945NP nondeterministic polynomial time 946NRZ non-return to zero 947NSA nation-state adversary 948NSA no such agency 949NSA National Security Agency 950NTM non-deterministic Turing machine 951NTP Network Time Protocol 952NUMA non-uniform memory access 953NVRAM non-volatile random access memory 954NW not write-through 955NX no execute 956OAEP optimal asymmetric encryption padding 957OAM operations, administration, and {management,maintenance} 958OBO off by one 959OBOE off by one error 960OCL object constraint language 961OCR optical character recognition 962ODCM on-demand clock modulation 963ODT on-die termination 964OEM original equipment manufacturer 965OFB output feedback 966OFDM orthogonal frequency division multiplexing 967OFET organic field-effect transistor 968OLAP online analytical processing 969OLE object linking and embedding 970OLTP online transaction processing 971ONFI open nand flash interface 972OO OpenOffice 973OO object oriented 974OOB out of band 975OOE out of order execution 976OOM out of memory 977OOO OpenOffice.org 978OOP object oriented programming 979OOPS object oriented programming systems 980OOSE object oriented software engineering 981OPM operations per minute 982OPS operations per second 983OQL Object Query Language 984ORB object request broker 985ORM object-relational mapping 986OS operating system 987OSD open source definition 988OSF open software foundation 989OSI Open Source Initiative 990OSI open systems interconnection 991OSPF open shortest path first 992OSPM OS power management 993OSS open sound system 994OSS open source software 995OSVW operating system visible workarounds 996OTP one time password 997OTP open telecom platform 998OU organizational unit 999OUI organizationally unique identifier 1000OWL Web Ontology Language 1001P2P PCI to PCI 1002P2P peer to peer 1003PA phase accumulator 1004PA physical address 1005PAAS platform as a service 1006PAC phase-amplitude converter 1007PAE physical address extension 1008PAL phase alternating line 1009PAL programmable array logic 1010PAM pluggable authentication modules 1011PAM pulse amplitude modulation 1012PAP password authentication protocol 1013PAT page attribute table 1014PAT port address translation 1015PATA parallel ATA 1016PAX portable archive exchange 1017PBE pending break encoding 1018PBE programming by example 1019PC personal computer 1020PC program counter 1021PCB printed circuit board 1022PCB process control block 1023PCB Protocol Control Block 1024PCC Portable C Compiler 1025PCD page-level cache disable 1026PCE path computation element 1027PCE performance-monitor counter enable 1028PCEP Path Computation Element Protocol 1029PCH platform controller hub 1030PCI peripheral component interconnect 1031PCM phase change memory 1032PCM pulse code modulation 1033PCMCIA Personal Computer Memory Card International Association 1034PCP Port Control Protocol 1035PD public domain 1036PDA personal digital assistant 1037PDA pushdown automaton 1038PDAG propositional directed acyclic graph 1039PDB power distribution board 1040PDF portable document format 1041PDM pulse-duration modulation 1042PDN pull-down network 1043PDP page {descriptor,directory} page 1044PDS product data sheet 1045PDU protocol data unit 1046PE protection enable 1047PEAP Protected EAP 1048PECI platform environment control interface 1049PEP protocol extension protocol 1050PER packed encoding rules 1051PFS perfect forward secrecy 1052PGAS partitioned global address space 1053PGE page global enable 1054PGP Pretty Good Privacy 1055PHB PCI host bridge 1056PHP PHP: Hypertext Preprocessor 1057PIC performance instrumentation counters 1058PIC position independent code 1059PIC programmable interrupt controller 1060PICNIC problem in chair, not in computer 1061PID process id 1062PIE position independent executable 1063PIL Priority Interrupt Level 1064PIM personal information manager 1065PIM platform-independent model 1066PIO programmed input/output 1067PIPT physically indexed, physically tagged 1068PIQ prefetch input queue 1069PIT programmable interrupt timer 1070PIV personal identity verification 1071PIX Private Internet eXchange 1072PKCS public-key cryptography standards 1073PKI public key infrastructure 1074PLC programmable logic controller 1075PLD programmable logic device 1076PLL phase locked loop 1077PLRU pseudo LRU 1078PLTM package level thermal management 1079PM power management 1080PM {phase,pulse} modulation 1081PMC performance monitoring counters 1082PME power management event 1083PMI performance monitoring infrastructure 1084PMI platform management interrupt 1085PMIO port-mapped input/output 1086PMT photo-multiplier tube 1087PMU performance monitoring units 1088PMU power management unit 1089PNG portable network graphics 1090PNP plug and play 1091POE power over ethernet 1092POF probability of failure 1093POP Post Office Protocol 1094POP power on password 1095POSIX Portable Operating System Interface [for Unix] 1096POST power on self test 1097POTS plain old telephone system 1098POWER Performance Optimization With Enhanced RISC 1099POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1100PP pair programming 1101PPB PCI [to] PCI bridge 1102PPC PowerPC 1103PPC Power Performance Computing 1104PPI pixels per inch 1105PPM pages per minute 1106PPP Point-to-Point Protocol 1107PPPOA Point-to-Point Protocol over ATM 1108PPPOE Point-to-Point Protocol over Ethernet 1109PPU physics processing unit 1110PRAM Parameter RAM 1111PRBS pseudorandom bit sequence 1112PRG pseudorandom generator 1113PRF pseudorandom function [family] 1114PRML partial response, maximum likelihood 1115PRN pseudorandom {noise,number} 1116PRNG pseudorandom number generator 1117PROM programmable read only memory 1118PRP pseudorandom permutation 1119PRU Programmable Realtime Unit 1120PS PostScript 1121PSD power spectral density 1122PSE page size extensions 1123PSK phase shift keying 1124PSK pre-shared key 1125PSTN public switched telephone network 1126PSW program status word 1127PTE page table entry 1128PTLA pseudo top level aggregator 1129PTP page table page 1130PTV perceived target value 1131PU processing unit 1132PUN physical unit number 1133PV physical volume 1134PVG physical volume group 1135PVI protected-mode virtual interrupt 1136PVST Per-VLAN Spanning Tree 1137PWM pulse width modulation 1138PXE preboot execution environment 1139QA quality assurance 1140QAM quadrature amplitude modulation 1141QAM quality assurance management 1142QBE query by example 1143QC quality control 1144QDI quasi delay insensitive 1145QCIF quarter common intermediate format 1146QOS quality of service 1147QVL qualified vendor list 1148R/O read only 1149R/W read/write 1150RA receiver address 1151RA remote assistance 1152RA resource affinity 1153RA router advertisement 1154RAD rapid application development 1155RAID redundant array of {independent,inexpensive} disks 1156RAM random access memory 1157RAS reliability, availability and serviceability 1158RAS remote access service 1159RAS restartable atomic sequence 1160RAS row address strobe 1161RBF radial basis function 1162RBT red-black tree 1163RC release candidate 1164RC remote control 1165RC run commands 1166RCS Revision Control System 1167RCS revision control system 1168RCU read, copy, update 1169RDB Rigid Disk Block 1170RDBMS relational database management system 1171RDF Resource Description Framework 1172RDM relational data model 1173RDMA remote direct memory access 1174RDRAM Rambus DRAM 1175RE regular expression 1176REST representational state transfer 1177RF radio frequency 1178RFI radio frequency interference 1179RFO request for ownership 1180RGB red green blue 1181RGBA red green blue alpha 1182RGMII reduced gigabit media independent interface 1183RH read hit 1184RHEL Red Hat Enterprise Linux 1185RHL Red Hat Linux 1186RIB routing information base 1187RIFF Resource Interchange File Format 1188RIP Raster Image Processor 1189RIP Routing Information Protocol 1190RIR regional Internet registry 1191RISC reduced instruction set {computer,computing} 1192RKM ROM Kernel Manual 1193RLE run length encoding 1194RLL run length limited 1195RLO right-to-left override 1196RM read miss 1197RMCP Remote Management Control Protocol 1198RMI remote method invocation 1199RMO Relaxed Memory Ordering 1200RMPM rapid memory power management 1201RMS root mean square 1202RMW read, modify, write 1203RNG random number generator 1204ROM read only memory 1205RPC remote procedure call 1206RPKI resource PKI 1207RPL requested privilege level 1208RPM revolutions per minute 1209RPN reverse Polish notation 1210RPVST Rapid Per-VLAN Spanning Tree 1211RR random replacement 1212RR round robin 1213RS relay station 1214RSA Rivest, Shamir, [and] Adleman 1215RSIP Realm Specific IP 1216RSN Robust Secure Network 1217RSS really simple syndication 1218RSS residual sum of squares 1219RSTP Rapid Spanning Tree Protocol 1220RT real time 1221RTC real time clock 1222RTC real time computing 1223RTF rich text format 1224RTL register transfer language 1225RTL resistor-transistor logic 1226RTL right to left 1227RTOS real time operating system 1228RTS request to send 1229RTT round trip time 1230RUP rational unified process 1231RW Rabin-Williams 1232RWM read-write memory 1233RX {receive,receiver} 1234S/PDIF Sony/Philips Digital Interface Format 1235SA security advisory 1236SA security association 1237SA source address 1238SA structured analysis 1239SAAS software as a service 1240SACD super audio compact disc 1241SAD security association database 1242SAL {service,system} abstraction layer 1243SAM serial access memory 1244SAM sum addressed memory 1245SAML security assertion markup language 1246SAN storage area network 1247SAP service access point 1248SAPIC streamlined advanced programmable interrupt controller 1249SASD structured analysis, structured design 1250SASI Shugart Associates System Interface 1251SASL simple authentication [and] security layer 1252SATA serial advanced technology attachment 1253SAX simple API for XML 1254SB sound blaster 1255SBU standard build unit 1256SC store conditional 1257SCA source code analyzer 1258SCADA supervisory control and data acquisition 1259SCC single chip cloud 1260SCC source code control 1261SCCS Source Code Control System 1262SCI scalable coherent interface 1263SCI system control interrupt 1264SCM software configuration management 1265SCM source code management 1266SCM storage-class memory 1267SCO synchronous connection orientated 1268SCP secure copy 1269SCSI Small Computer System Interface 1270SCTP Stream Control Transmission Protocol 1271SDEI software delegated exception interface 1272SDI symbol deinterleave 1273SDK software development kit 1274SDL Simple Declarative Language 1275SDL Simple Direct-media Layer 1276SDLC {software,system,systems} development life cycle 1277SDN software defined networking 1278SDP Session Description Protocol 1279SDRAM synchronous dynamic random access memory 1280SDS software defined storage 1281SDT syntax-directed translation 1282SEA synchronous external abort 1283SEGV segmentation violation 1284SEO search engine optimization 1285SFC sequential function chart 1286SFI simple firmware interface 1287SFI software fault isolation 1288SFTP SSH File Transfer Protocol 1289SFTP Serial File Transfer Protocol 1290SFTP Simple File Transfer Protocol 1291SGMII serial gigabit media independent interface 1292SGRAM synchronous graphics random access memory 1293SHA secure hash algorithm 1294SIDH supersingular isogeny Diffie-Hellman 1295SIEM security information and event management 1296SIF source input format 1297SIFS short inter-frame space 1298SIMD single instruction, multiple data 1299SIMM single inline memory module 1300SIP Session Initiation Protocol 1301SIR signal-to-interference ratio 1302SIR slow infrared 1303SISD single instruction, single data 1304SLAAC stateless address auto-configuration 1305SLC single-level cell 1306SLDRAM synchronous-link dynamic random access memory 1307SLED single large expensive disk 1308SLI scalable link interface 1309SLI scan-line interleave 1310SLOC source lines of code 1311SLRU segmented LRU 1312SMA smart memory access 1313SMAF system management action field 1314SMAP Simple Mail Access Protocol 1315SMAP supervisor mode access prevention 1316SMART self-monitoring analysis and reporting technology 1317SMB Server Message Block 1318SMB system management bus 1319SMBIOS System Management BIOS 1320SMC system management controller 1321SMEP supervisor mode execution protection 1322SMF single mode fiber 1323SMI structure of management information 1324SMI system management interrupt 1325SMM system management mode 1326SMP symmetric multiprocessing 1327SMT simultaneous multithreading 1328SMTP Simple Mail Transfer Protocol 1329SMU system management unit 1330SNAP Sub-Network Access Protocol 1331SNIA Storage Networking Industry Association 1332SNMP Simple Network Management Protocol 1333SNR signal-to-noise ratio 1334SOA service oriented architecture 1335SOAP Simple Object Access Protocol 1336SOC system on chip 1337SOF start of frame 1338SOH start of header 1339SOHO small office/home office 1340SOL serial over LAN 1341SP service pack 1342SP stack pointer 1343SPA storage pool allocator 1344SPARC scalable processor architecture 1345SPARQL SPARQL Protocol and RDF Query Language 1346SPD security policy database 1347SPD serial presence detect 1348SPDIF Sony/Philips digital interface format 1349SPI serial peripheral interface 1350SPI stateful packet inspection 1351SPL system interrupt priority level 1352SPL spinlock 1353SPMD single process, multiple data 1354SPR special purpose register 1355SPT sectors per track 1356SQA software quality assurance 1357SQCIF sub quarter common intermediate format 1358SQL Structured Query Language 1359SRAM static random access memory 1360SRC sample rate conversion 1361SS self-snoop 1362SS stack segment 1363SSA static single assignment 1364SSAP source service access point 1365SSB single-sideband modulation 1366SSD solid state drive 1367SSE streaming SIMD extensions 1368SSFDC solid state floppy disc card 1369SSH secure shell 1370SSI server side includes 1371SSID service set identifier 1372SSL secure sockets layer 1373SSP stack smashing protection 1374STC software thermal control 1375STD state transition diagram 1376STOMP Streaming Text Oriented Messaging Protocol 1377STP Spanning Tree Protocol 1378STP shielded twisted pair 1379SUS Single Unix Specification 1380SUT system under test 1381SVG scalable vector graphics 1382SVGA Super Video Graphics Array 1383SVI {switch,switched} virtual interface 1384SVM secure virtual machine 1385SVM support vector machine 1386SVR System V Release 1387SVS Separate Virtual Space 1388SWF Shockwave Flash 1389SWIG simplified wrapper [and] interface generator 1390SYR symbol timing recovery 1391TA test assertion 1392TA transmitter address 1393TAI international atomic time 1394TAO track at once 1395TAOCP The Art of Computer Programming 1396TAP Test Anything Protocol 1397TAS test and set 1398TB terabyte 1399TCB trace capture buffer 1400TCB trusted computing base 1401TCC thermal control circuit 1402TCL tool command language 1403TCP Transmission Control Protocol 1404TCQ tagged command queueing 1405TDC time [to] digital converter 1406TDD test-driven development 1407TDD time division duplex 1408TDM time division multiplexing 1409TDMA time division multiple access 1410TDOA time difference of arrival 1411TDP thermal design {point,power} 1412TECO Text Editor and Corrector 1413TFT thin film transistor 1414TFTP Trivial File Transfer Protocol 1415TIAS try it and see 1416TIFF tagged image file format 1417TITS try it to see 1418TK temporal key 1419TKIP Temporal Key Integrity Protocol 1420TLA top level aggregator 1421TLB translation lookaside buffer 1422TLD top level domain 1423TLS thread local storage 1424TLS transport layer security 1425TM Turing machine 1426TM thermal monitor 1427TMDS transition minimized differential signaling 1428TMO timeout 1429TOD time of day 1430TOS terms of service 1431TOS trusted operating system 1432TOS type of service 1433TP transaction processing 1434TPI tracks per inch 1435TPM transactions per minute 1436TPM trusted platform module 1437TPR task priority register 1438TPS transactions per second 1439TPS transmission parameters signaling 1440TR task register 1441TR token ring 1442TRL timing recovery loop 1443TRNG true random number generator 1444TS terminal services 1445TS time series 1446TS time stamp 1447TS transport stream 1448TSAN Thread Sanitizer 1449TSC time stamp counter 1450TSD time stamp disable 1451TSDB time series database 1452TSL test, set, lock 1453TSO time sharing option 1454TSO Total Store Ordering 1455TSP Time-Stamp Protocol 1456TSP Tunnel Setup Protocol 1457TSP time synchronization protocol 1458TSP traveling salesman problem 1459TSS task state segment 1460TTL time to live 1461TTL transistor-transistor logic 1462TTM translation table maps 1463TTY teletype 1464TUI {terminal,text-based,textual} user interface 1465TX {transmit out,transmitter} 1466TXG transaction group 1467TZ time zone 1468UAC user {access,account} control 1469UAF use-after-free 1470UART universal asynchronous receiver/transmitter 1471UAT user acceptance testing 1472UB undefined behavior 1473UBSAN Undefined Behavior Sanitizer 1474UC uncacheable 1475UCS uniform-cost search 1476UDMA ultra DMA 1477UDO ultra density optical 1478UDP User Datagram Protocol 1479UEFI unified extensible firmware interface 1480UFS Unix File System 1481UGA universal graphics adapter 1482UI unit interval 1483UI user interface 1484UID unique identifier 1485UID user identifier 1486UL upload 1487UMA uniform memory access 1488UMA upper memory area 1489UMB upper memory block 1490UML unified modeling language 1491UMPC ultra-mobile PC 1492UPNP universal plug and play 1493UPS uninterruptible power supply 1494URI uniform resource identifier 1495URL uniform resource locator 1496URN uniform resource name 1497USART universal synchronous/asynchronous receiver/transmitter 1498USB universal serial bus 1499USWC uncacheable speculative write combining 1500UT unit test 1501UTC coordinated universal time 1502UTP unshielded twisted pair 1503UUCP Unix-to-Unix Copy Protocol 1504UUID universally unique identifier 1505UUOC useless use of cat 1506UUT unit under test 1507UX user experience 1508VA vertical alignment 1509VA virtual address 1510VA volt-ampere 1511VAX virtual address extension 1512VB Visual Basic 1513VCA variable-gain amplifier 1514VCC common collector voltage 1515VCF voltage-controlled filter 1516VCM virtual channel memory 1517VCO voltage-controlled oscillator 1518VCS version control system 1519VESA Video Electronics Standards Association 1520VFO variable-frequency oscillator 1521VG volume group 1522VGA Video Graphics Array 1523VHDCI very high density cable interconnect 1524VID {VLAN,voltage level} identifier 1525VIM Vi IMproved 1526VIPT virtually indexed, physically tagged 1527VIVT virtually indexed, virtually tagged 1528VLAN virtual local area network 1529VLIW very long instruction word 1530VLSI very large scale integration 1531VLSM variable length subnet mask 1532VM virtual {machine,memory} 1533VME virtual mode extension 1534VMX vector multimedia extensions 1535VMX virtual machine extensions 1536VOD video on demand 1537VPN virtual private network 1538VR virtual reality 1539VRAM video random access memory 1540VRF virtual routing and forwarding 1541VRM voltage regulator module 1542VRRP Virtual Router Redundancy Protocol 1543VSTP VLAN Spanning Tree Protocol 1544VTP VLAN Trunking Protocol 1545W watt 1546W3C World Wide Web Consortium 1547WAMP Web Application Messaging Protocol 1548WAN wide area network 1549WAP Wireless Application Protocol 1550WAP wireless access point 1551WDM Windows Driver Model 1552WDDM Windows Display Driver Model 1553WDT watchdog timer 1554WEP Wired Equivalent Privacy 1555WFI wait for interrupt 1556WFQ weighted fair queuing 1557WH write hit 1558WIFI wireless fidelity 1559WLAN wireless local area network 1560WM write miss 1561WMI Windows Management Instrumentation 1562WOL Wake-on-LAN 1563WOM Wake-on-Modem 1564WOR Wake-on-Ring 1565WORM write once read many 1566WP WordPerfect 1567WP word processor 1568WP write protect 1569WPA Wi-Fi Protected Access 1570WPA2 Wi-Fi Protected Access II 1571WPS Wi-Fi Protected Setup 1572WRAM window random access memory 1573WS web services 1574WTC write through caching 1575WWAN wireless wide area network 1576WWW world wide web 1577WYSIAYG what you see is all you get 1578WYSIWYG what you see is what you get 1579XBAR crossbar 1580XDMCP X Display Manager control protocol 1581XER XML encoding rules 1582XGA Extended Graphics Array 1583XHR XMLHttpRequest 1584XIP execute in place 1585XML Extensible Markup Language 1586XOR exclusive or 1587XP extreme programming 1588XSI X/Open System Interface 1589XSL extensible stylesheet language 1590XSS cross site scripting 1591XT extended technology 1592XUL XML user interface language 1593YACC yet another compiler compiler 1594YAML YAML ain't markup language 1595YANG yet another next generation 1596YAWPFAPR you are welcome; please file a problem report 1597YP Yellow Pages 1598YTD year to date 1599ZAP ZFS attribute processor 1600ZBR zone bit recording 1601ZFOD zero-filled on demand 1602ZFS zettabyte file system 1603ZIF zero insertion force 1604ZIFS zero insertion force socket 1605ZIL ZFS intent log 1606ZMA zone multicast address 1607ZPL ZFS Posix layer 1608ZVOL ZFS Volume 1609