acronyms.comp revision 1.224
1$NetBSD: acronyms.comp,v 1.224 2019/01/14 17:25:12 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 483ESDI enhanced small disk interface 484ESDRAM enhanced synchronous dynamic random access memory 485ESI enclosure services interface 486ESS electronic switching system 487ESS extended service set 488ESSID extended service set identifier 489EST enhanced speedstep 490ETL extract, transform, load 491EU execution unit 492EULA end user license agreement 493FAT file allocation table 494FBRAM frame buffer random access memory 495FCIF full common intermediate format 496FCL fiber channel loop 497FCS frame check sequence 498FDC floppy disk controller 499FDD floppy disk drive 500FDDI fiber distributed data interface 501FDE full disk encryption 502FDT flattened device tree 503FEA finite element analysis 504FEC forward error correction 505FET field-effect transistor 506FF finite field 507FF form feed 508FFDH finite-field Diffie-Hellman 509FFH functional fixed hardware 510FFI foreign function interface 511FFM focus follows mouse 512FFS Fast File System 513FFS find first set 514FFT fast Fourier transform 515FG floating gate 516FHSS frequency hop spread spectrum 517FID frequency identifier 518FIFO first in, first out 519FILO first in, last out 520FIPS Federal Information Processing Standards 521FIR fast infrared 522FLOPS floating [point] operations per second 523FLOSS free/libre/open source software 524FM frequency modulation 525FMR false match rate 526FOSS free/open source software 527FPGA field programmable gate array 528FPM fast page mode 529FPR floating point register 530FPU floating point unit 531FQDN fully qualified domain name 532FRR false rejection rate 533FRU field replaceable unit 534FS file system 535FSB front side bus 536FSCK file system check 537FSF Free Software Foundation 538FSK frequency shift keying 539FSM finite-state machine 540FTA fault tree analysis 541FTL flash translation layer 542FTP File Transfer Protocol 543FTPS File Transfer Protocol Secure 544FUS fast user switching 545FWH firmware hub 546FWS folding white space 547GAL generic array logic 548GAS generic address structure 549GC garbage collector 550GCM Galois counter mode 551GCR group-coded recording 552GDI Graphics Device Interface 553GDT global descriptor table 554GEM graphics environment manager 555GEM graphics execution manager 556GENA general event notification architecture 557GHC Glasgow Haskell compiler 558GHES generic hardware error source 559GIC generic interrupt controller 560GID group identifier 561GIF graphics interchange format 562GMCH graphics and memory controller hub 563GNU GNU's Not Unix 564GOP graphics output protocol 565GOT global offset table 566GPE general purpose event 567GPF general protection fault 568GPG GNU Privacy Guard 569GPL [GNU] General Public License 570GPR general purpose register 571GPS generalized processor sharing 572GPT GUID partition table 573GPU graphics processing unit 574GR golden ratio 575GRE generic routing encapsulation 576GSI global system interrupt 577GUI graphical user interface 578GUID globally unique identifier 579GVFS git virtual file system 580HA high availability 581HAL hardware abstraction layer 582HAT hashed array tree 583HATEOAS hypermedia as the engine of application state 584HBA host bus adapter 585HCF halt and catch fire 586HCI host controller interface 587HCI human-computer interaction 588HCL hardware compatibility list 589HDCP High-bandwidth Digital Content Protection 590HDD hard disk drive 591HDL hardware description language 592HDMI High-Definition Multimedia Interface 593HDTV high-definition television 594HECI host embedded controller interface 595HEST hardware error source table 596HF high frequency 597HFM highest frequency mode 598HID human interface device 599HKP HTTP Keyserver Protocol 600HLL high-level language 601HMA high memory area 602HMI human-machine interface 603HOOD hierarchical object oriented design 604HP Hewlett-Packard 605HPC high performance computing 606HPET high precision event timer 607HSM hardware security module 608HSM hierarchical storage management 609HT hyper-threading 610HTC hardware thermal control 611HTCC high temperature co-fired ceramic 612HTML HyperText Markup Language 613HTT hyper-threading technology 614HTTP Hypertext Transfer Protocol 615HTTPS Hypertext Transfer Protocol Secure 616HVM hardware virtual machine 617HVDS High-Voltage Differential Signaling 618HWASAN Hardware-assisted Address Sanitizer 619HZ Hertz 620I2O intelligent input/output 621IA information assurance 622IAAS infrastructure as a service 623IANA Internet Assigned Numbers Authority 624IBC iterated block cipher 625IBM International Business Machines 626IBS instruction based sampling 627IBSS independent basic service set 628IC integrated circuit 629ICA independent computer architecture 630ICB Internet Citizen's Band 631ICE in-circuit emulator 632ICE internal compiler error 633ICH I/O controller hub 634ICMP Internet Control Message Protocol 635ICT information and communications technology 636ICW initialization command word 637IDA Intel dynamic acceleration 638IDCMP Intuition direct communication message port 639IDE integrated development environment 640IDE integrated drive electronics 641IDPS intrusion detection [and] prevention system 642IDRP inter-domain routing protocol 643IDS intrusion detection system 644IDT interrupt descriptor table 645IE Internet Explorer 646IEC International Electrotechnical Commission 647IEEE Institute of Electrical and Electronics Engineers 648IESG Internet Engineering Steering Group 649IETF Internet Engineering Task Force 650IF intermediate frequency 651IFCM isochronous flow control mode 652IFF Interchange File Format 653IFS internal field separator 654IGD Internet gateway device 655IGMP Internet Group Management Protocol 656IGP interior gateway protocol 657IHV independent hardware vendor 658IKE Internet key exchange 659ILM internal loopback mode 660ILOM integrated lights-out management 661ILP instruction level parallelism 662IM instant messaging 663IMAP Internet Message Access Protocol 664IMC integrated memory controller 665IMCR interrupt mode configuration register 666IMR interrupt mask register 667IMS information management system 668INCITS InterNational Committee for Information Technology Standards 669IO input/output 670IOCTL input/output control 671IOMMU input/output memory management unit 672IOT Internet of Things 673IP Internet Protocol 674IP intellectual property 675IPC instructions per cycle 676IPC interprocess communication 677IPE integrated programming environment 678IPI intelligent peripheral interface 679IPI interprocessor interrupt 680IPL Initial Program Load 681IPL Interrupt Priority Level 682IPMB Intelligent Platform Management Bus 683IPMI Intelligent Platform Management Interface 684IPNG Internet Protocol, Next Generation 685IPS in-plane switching 686IPS intrusion prevention system 687IPSEC Internet Protocol Security 688IRC Internet Relay Chat 689IRDA infrared data association 690IRQ interrupt request 691IRQL interrupt request level 692IRR interrupt request register 693IRTF Internet Research Task Force 694IS information system 695ISA industry standard architecture 696ISA instruction set architecture 697ISDN integrated services digital network 698ISI inter-symbol interference 699ISM industrial, scientific, [and] medical 700ISN initial serial number 701ISO International Standards Organization 702ISOC Internet Society 703ISP Internet service provider 704ISR in-service register 705ISR interrupt service routine 706IST interrupt stack table 707ISV independent software vendor 708IT information technology 709ITB Intel Turbo Boost 710ITIL information technology infrastructure library 711ITP in-target probe 712ITSM IT service management 713IV initialization vector 714IVT interrupt vector table 715JBOD just a bunch of disks 716JFET junction [gate] field-effect transistor 717JIT just in time 718JPEG Joint Photographic Experts Group 719JRE Java Runtime Environment 720JSON JavaScript Object Notation 721JTAG joint test action group 722KASLR kernel address space layout randomization 723KB keyboard 724KB kilobyte 725KBD keyboard 726KBD kilobaud 727KCS keyboard controller style 728KLOC thousand lines of code 729KMS kernel-mode setting 730KPI kernel programming interface 731KVA kernel virtual address 732KVM kernel virtual machine 733KVM kernel virtual memory 734KVM keyboard, video, [and] mouse 735LAMP Linux Apache MySQL {Perl,PHP,Python} 736LAN local area network 737LAPIC local advanced programmable interrupt controller 738LAR load access rights 739LBA logical block addressing 740LBS location-based service 741LCD liquid crystal display 742LCP link control protocol 743LDA local delivery agent 744LDAP Lightweight Directory Access Protocol 745LDR light-dependent resistor 746LDT local descriptor table 747LE logical extent 748LED light emitting diode 749LELL low energy link layer 750LER label edge router 751LF line feed 752LF low frequency 753LFM lowest frequency mode 754LFN long file names 755LFO low-frequency oscillation 756LFS log-structured file system 757LFU least frequently used 758LHP loop heat pipe 759LIFO last in, first out 760LILO LInux LOader 761LILO last in, last out 762LINT local interrupt 763LIR local Internet registry 764LISP LISt Processor 765LISP Locator/ID Separation Protocol 766LKM {Linux,loadable} kernel module 767LKML Linux kernel mailing list 768LL load linked 769LL/SC load linked/store conditional 770LLC logical link control 771LLDP link layer discovery protocol 772LLF low level format 773LLMNR link-local multicast name resolution 774LLVM Low Level Virtual Machine 775LM long mode 776LMM link management mode 777LMP link management protocol 778LNO loop nest optimization 779LOC lines of code 780LOM lights-out management 781LPE Linux performance events 782LPC low pin count 783LPS local positioning system 784LRC longitudinal redundancy check 785LRM left-to-right mark 786LRO left-to-right override 787LRU least recently used 788LSAN Leak Sanitizer 789LSB Linux standards base 790LSB least significant {bit,byte} 791LSI large scale integration 792LSL load segment limit 793LSM log structured merge 794LSN Large Scale NAT 795LSN log sequence number 796LSR label switch router 797LTCC low temperature co-fired ceramic 798LTO linear tape-open 799LTO link time optimization 800LTR left to right 801LTR load task register 802LTR letter(-sized paper) 803LTS long term support 804LUA Lua Uppercase Accident 805LUN logical unit number 806LV logical volume 807LVM logical volume management 808LVT local vector table 809LVDS Low-Voltage Differential Signaling 810LWP light-weight process 811LZW Lempel Ziv Welch 812MAC mandatory access control 813MAC {media,medium} access control 814MAC message authentication {check,code} 815MADT multiple APIC descriptor table 816MB megabyte 817MBA multi-boot agent 818MBR master boot record 819MBS megabits per second 820MC memory controller 821MCA machine check architecture 822MCA MicroChannel architecture 823MCC multiversion concurrency control 824MCE machine check exception 825MCGA Multi-Color Graphics Array 826MCH memory controller hub 827MCM multi-chip module 828MCQ memory controlled queue 829MD machine-dependent 830MD-SAL model-driven service abstraction layer 831MDA mail delivery agent 832MDA Monochrome Display Adapter 833MDC Management Data Clock 834MDI Medium Dependent Interface 835MDI-X Medium Dependent Interface Crossover 836MDIO Management Data Input/Output 837MDMX MIPS Digital Media eXtension 838MDRAM multibank dynamic random access memory 839MESI modified, exclusive, shared, invalid 840MFC merge from current 841MFC Microsoft Foundation Classes 842MFM modified frequency modulation 843MI machine-independent 844MIB management information base 845MIC message integrity {check,code} 846MID mobile Internet device 847MIDI musical instrument digital interface 848MIF management information format 849MII media independent interface 850MIM man in the middle 851MIMD multiple instruction, multiple data 852MIME Multipurpose Internet Mail Extensions 853MIMO multiple input multiple output 854MIPS million instructions per second 855MIPS Microprocessor without Interlocked Pipeline Stages 856MISD multiple instruction, single data 857MIT Massachusetts Institute of Technology 858MITM man in the middle 859ML machine language 860ML machine learning 861ML mailing list 862ML markup language 863ML maximum likelihood 864MLC multi-level cell 865MLD multicast listener discovery 866MLHP micro loop heat pipe 867MMF multi-mode fiber 868MMIC monolithic microwave integrated circuit 869MMIO memory mapped input/output 870MMORPG massive multiplayer online role playing game 871MMU memory management unit 872MMX matrix math extension 873MMX multimedia extension 874MMX multiple math extension 875MO magneto-optical 876MOESI modified, owned, exclusive, shared, invalid 877MOF maximum operating frequency 878MOSFET metal-oxide-semiconductor field-effect transistor 879MOSI modified, owned, shared, invalid 880MP multi-platform 881MP multiplayer 882MP {multiprocessing,multiprocessor} 883MPEG moving picture experts group 884MPI message passing interface 885MPLS Multiprotocol Label Switching 886MPP massively parallel processor 887MPS memory pool system 888MPS multiprocessor specification 889MQTT Message Queuing Telemetry Transport 890MR modem ready 891MRU most recently used 892MS Microsoft 893MSAN Memory Sanitizer 894MSB most significant {bit,byte} 895MSC message sequence chart 896MSE mean square error 897MSF minutes seconds frames 898MSI message signaled interrupt 899MSI modified, shared, invalid 900MSR {machine state,model-specific} register 901MSS maximum segment size 902MSTP Multiple Spanning Tree Protocol 903MT machine translation 904MTA mail transfer agent 905MTBF mean time between failures 906MTP media transfer protocol 907MTRR memory type range register 908MTTF mean time to failure 909MTU maximum transmission unit 910MUA mail user agent 911MUD multi-user domain 912MVCC multiversion concurrency control 913MWE module width encoding 914MX mail exchange 915NACK negative acknowledgement 916NAN not a number 917NAPT Network Address Port Translation 918NAS network attached storage 919NAT network address translation 920NAV network allocation vector 921NC numerical control 922NCO numerically-controlled oscillator 923NCP Network Control Protocol 924NCQ native command queuing 925ND neighbor discovery 926NDFA nondeterministic finite automaton 927NE numeric error 928NEWS Network extensible Window System 929NFA nondeterministic finite automaton 930NFC near-field communication 931NFCI no functional change intended 932NFS network file system 933NFV network function virtualization 934NIA next instruction address 935NIC network information center 936NIC network interface card 937NIDS network intrusion detection system 938NIP network interface protocol 939NIPS network intrusion prevention system 940NIS network information service 941NIST National Institute of Standards and Technology 942NLS native language support 943NMI non-maskable interrupt 944NNTP Network News Transfer Protocol 945NOC network operations center 946NOP no operation 947NOS network operating system 948NP nondeterministic polynomial time 949NRZ non-return to zero 950NSA nation-state adversary 951NSA no such agency 952NSA National Security Agency 953NTM non-deterministic Turing machine 954NTP Network Time Protocol 955NUMA non-uniform memory access 956NVRAM non-volatile random access memory 957NW not write-through 958NX no execute 959OAEP optimal asymmetric encryption padding 960OAM operations, administration, and {management,maintenance} 961OBO off by one 962OBOE off by one error 963OCL object constraint language 964OCR optical character recognition 965ODCM on-demand clock modulation 966ODT on-die termination 967OEM original equipment manufacturer 968OFB output feedback 969OFDM orthogonal frequency division multiplexing 970OFET organic field-effect transistor 971OLAP online analytical processing 972OLE object linking and embedding 973OLTP online transaction processing 974ONFI open nand flash interface 975OO OpenOffice 976OO object oriented 977OOB out of band 978OOE out of order execution 979OOM out of memory 980OOO OpenOffice.org 981OOP object oriented programming 982OOPS object oriented programming systems 983OOSE object oriented software engineering 984OPM operations per minute 985OPS operations per second 986OQL Object Query Language 987ORB object request broker 988ORM object-relational mapping 989OS operating system 990OSD open source definition 991OSF open software foundation 992OSI Open Source Initiative 993OSI open systems interconnection 994OSPF open shortest path first 995OSPM OS power management 996OSS open sound system 997OSS open source software 998OSVW operating system visible workarounds 999OTP one time password 1000OTP open telecom platform 1001OU organizational unit 1002OUI organizationally unique identifier 1003OWL Web Ontology Language 1004P2P PCI to PCI 1005P2P peer to peer 1006PA phase accumulator 1007PA physical address 1008PAAS platform as a service 1009PAC phase-amplitude converter 1010PAE physical address extension 1011PAL phase alternating line 1012PAL programmable array logic 1013PAM pluggable authentication modules 1014PAM pulse amplitude modulation 1015PAP password authentication protocol 1016PAT page attribute table 1017PAT port address translation 1018PATA parallel ATA 1019PAX portable archive exchange 1020PBE pending break encoding 1021PBE programming by example 1022PC personal computer 1023PC program counter 1024PCB printed circuit board 1025PCB process control block 1026PCB Protocol Control Block 1027PCC Portable C Compiler 1028PCD page-level cache disable 1029PCE path computation element 1030PCE performance-monitor counter enable 1031PCEP Path Computation Element Protocol 1032PCH platform controller hub 1033PCI peripheral component interconnect 1034PCM phase change memory 1035PCM pulse code modulation 1036PCMCIA Personal Computer Memory Card International Association 1037PCP Port Control Protocol 1038PD public domain 1039PDA personal digital assistant 1040PDA pushdown automaton 1041PDAG propositional directed acyclic graph 1042PDB power distribution board 1043PDF portable document format 1044PDM pulse-duration modulation 1045PDN pull-down network 1046PDP page {descriptor,directory} page 1047PDS product data sheet 1048PDU protocol data unit 1049PE protection enable 1050PEAP Protected EAP 1051PECI platform environment control interface 1052PEP protocol extension protocol 1053PER packed encoding rules 1054PFS perfect forward secrecy 1055PGAS partitioned global address space 1056PGE page global enable 1057PGP Pretty Good Privacy 1058PHB PCI host bridge 1059PHP PHP: Hypertext Preprocessor 1060PIC performance instrumentation counters 1061PIC position independent code 1062PIC programmable interrupt controller 1063PICNIC problem in chair, not in computer 1064PID process id 1065PIE position independent executable 1066PIL Priority Interrupt Level 1067PIM personal information manager 1068PIM platform-independent model 1069PIO programmed input/output 1070PIPT physically indexed, physically tagged 1071PIQ prefetch input queue 1072PIT programmable interrupt timer 1073PIV personal identity verification 1074PIX Private Internet eXchange 1075PKCS public-key cryptography standards 1076PKI public key infrastructure 1077PLC programmable logic controller 1078PLD programmable logic device 1079PLL phase locked loop 1080PLRU pseudo LRU 1081PLTM package level thermal management 1082PM power management 1083PM {phase,pulse} modulation 1084PMC performance monitoring counters 1085PME power management event 1086PMI performance monitoring infrastructure 1087PMI platform management interrupt 1088PMIO port-mapped input/output 1089PMT photo-multiplier tube 1090PMU performance monitoring units 1091PMU power management unit 1092PNG portable network graphics 1093PNP plug and play 1094POE power over ethernet 1095POF probability of failure 1096POP Post Office Protocol 1097POP power on password 1098POSIX Portable Operating System Interface [for Unix] 1099POST power on self test 1100POTS plain old telephone system 1101POWER Performance Optimization With Enhanced RISC 1102POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1103PP pair programming 1104PPB PCI [to] PCI bridge 1105PPC PowerPC 1106PPC Power Performance Computing 1107PPI pixels per inch 1108PPM pages per minute 1109PPP Point-to-Point Protocol 1110PPPOA Point-to-Point Protocol over ATM 1111PPPOE Point-to-Point Protocol over Ethernet 1112PPU physics processing unit 1113PRAM Parameter RAM 1114PRBS pseudorandom bit sequence 1115PRG pseudorandom generator 1116PRF pseudorandom function [family] 1117PRML partial response, maximum likelihood 1118PRN pseudorandom {noise,number} 1119PRNG pseudorandom number generator 1120PROM programmable read only memory 1121PRP pseudorandom permutation 1122PRU Programmable Realtime Unit 1123PS PostScript 1124PSD power spectral density 1125PSE page size extensions 1126PSK phase shift keying 1127PSK pre-shared key 1128PSTN public switched telephone network 1129PSW program status word 1130PTE page table entry 1131PTLA pseudo top level aggregator 1132PTP page table page 1133PTV perceived target value 1134PU processing unit 1135PUN physical unit number 1136PV physical volume 1137PVG physical volume group 1138PVI protected-mode virtual interrupt 1139PVST Per-VLAN Spanning Tree 1140PWM pulse width modulation 1141PXE preboot execution environment 1142QA quality assurance 1143QAM quadrature amplitude modulation 1144QAM quality assurance management 1145QBE query by example 1146QC quality control 1147QDI quasi delay insensitive 1148QCIF quarter common intermediate format 1149QOS quality of service 1150QVL qualified vendor list 1151R/O read only 1152R/W read/write 1153RA receiver address 1154RA remote assistance 1155RA resource affinity 1156RA router advertisement 1157RAD rapid application development 1158RAID redundant array of {independent,inexpensive} disks 1159RAM random access memory 1160RAS reliability, availability and serviceability 1161RAS remote access service 1162RAS restartable atomic sequence 1163RAS row address strobe 1164RBF radial basis function 1165RBT red-black tree 1166RC release candidate 1167RC remote control 1168RC run commands 1169RCS Revision Control System 1170RCS revision control system 1171RCU read, copy, update 1172RDB Rigid Disk Block 1173RDBMS relational database management system 1174RDF Resource Description Framework 1175RDM relational data model 1176RDMA remote direct memory access 1177RDRAM Rambus DRAM 1178RE regular expression 1179REST representational state transfer 1180RF radio frequency 1181RFI radio frequency interference 1182RFO request for ownership 1183RGB red green blue 1184RGBA red green blue alpha 1185RGMII reduced gigabit media independent interface 1186RH read hit 1187RHEL Red Hat Enterprise Linux 1188RHL Red Hat Linux 1189RIB routing information base 1190RIFF Resource Interchange File Format 1191RIP Raster Image Processor 1192RIP Routing Information Protocol 1193RIR regional Internet registry 1194RISC reduced instruction set {computer,computing} 1195RKM ROM Kernel Manual 1196RLE run length encoding 1197RLL run length limited 1198RLO right-to-left override 1199RM read miss 1200RMCP Remote Management Control Protocol 1201RMI remote method invocation 1202RMO Relaxed Memory Ordering 1203RMPM rapid memory power management 1204RMS root mean square 1205RMW read, modify, write 1206RNG random number generator 1207ROM read only memory 1208RPC remote procedure call 1209RPKI resource PKI 1210RPL requested privilege level 1211RPM revolutions per minute 1212RPN reverse Polish notation 1213RPVST Rapid Per-VLAN Spanning Tree 1214RR random replacement 1215RR round robin 1216RS relay station 1217RSA Rivest, Shamir, [and] Adleman 1218RSIP Realm Specific IP 1219RSN Robust Secure Network 1220RSS really simple syndication 1221RSS residual sum of squares 1222RSTP Rapid Spanning Tree Protocol 1223RT real time 1224RTC real time clock 1225RTC real time computing 1226RTF rich text format 1227RTL register transfer language 1228RTL resistor-transistor logic 1229RTL right to left 1230RTOS real time operating system 1231RTS request to send 1232RTT round trip time 1233RUP rational unified process 1234RW Rabin-Williams 1235RWM read-write memory 1236RX {receive,receiver} 1237S/PDIF Sony/Philips Digital Interface Format 1238SA security advisory 1239SA security association 1240SA source address 1241SA structured analysis 1242SAAS software as a service 1243SACD super audio compact disc 1244SAD security association database 1245SAL {service,system} abstraction layer 1246SAM serial access memory 1247SAM sum addressed memory 1248SAML security assertion markup language 1249SAN storage area network 1250SAP service access point 1251SAPIC streamlined advanced programmable interrupt controller 1252SASD structured analysis, structured design 1253SASI Shugart Associates System Interface 1254SASL simple authentication [and] security layer 1255SATA serial advanced technology attachment 1256SAX simple API for XML 1257SB sound blaster 1258SBU standard build unit 1259SC store conditional 1260SCA source code analyzer 1261SCADA supervisory control and data acquisition 1262SCC single chip cloud 1263SCC source code control 1264SCCS Source Code Control System 1265SCI scalable coherent interface 1266SCI system control interrupt 1267SCM software configuration management 1268SCM source code management 1269SCM storage-class memory 1270SCO synchronous connection orientated 1271SCP secure copy 1272SCSI Small Computer System Interface 1273SCTP Stream Control Transmission Protocol 1274SDEI software delegated exception interface 1275SDI symbol deinterleave 1276SDK software development kit 1277SDL Simple Declarative Language 1278SDL Simple Direct-media Layer 1279SDLC {software,system,systems} development life cycle 1280SDN software defined networking 1281SDP Session Description Protocol 1282SDRAM synchronous dynamic random access memory 1283SDS software defined storage 1284SDT syntax-directed translation 1285SEA synchronous external abort 1286SEGV segmentation violation 1287SEO search engine optimization 1288SES scsi enclosure services 1289SFC sequential function chart 1290SFI simple firmware interface 1291SFI software fault isolation 1292SFTP SSH File Transfer Protocol 1293SFTP Serial File Transfer Protocol 1294SFTP Simple File Transfer Protocol 1295SGMII serial gigabit media independent interface 1296SGRAM synchronous graphics random access memory 1297SHA secure hash algorithm 1298SIDH supersingular isogeny Diffie-Hellman 1299SIEM security information and event management 1300SIF source input format 1301SIFS short inter-frame space 1302SIMD single instruction, multiple data 1303SIMM single inline memory module 1304SIP Session Initiation Protocol 1305SIR signal-to-interference ratio 1306SIR slow infrared 1307SISD single instruction, single data 1308SLAAC stateless address auto-configuration 1309SLC single-level cell 1310SLDRAM synchronous-link dynamic random access memory 1311SLED single large expensive disk 1312SLI scalable link interface 1313SLI scan-line interleave 1314SLOC source lines of code 1315SLRU segmented LRU 1316SMA smart memory access 1317SMAF system management action field 1318SMAP Simple Mail Access Protocol 1319SMAP supervisor mode access prevention 1320SMART self-monitoring analysis and reporting technology 1321SMB Server Message Block 1322SMB system management bus 1323SMBIOS System Management BIOS 1324SMC system management controller 1325SMD storage module device 1326SMEP supervisor mode execution protection 1327SMF single mode fiber 1328SMI structure of management information 1329SMI system management interrupt 1330SMM system management mode 1331SMP symmetric multiprocessing 1332SMT simultaneous multithreading 1333SMTP Simple Mail Transfer Protocol 1334SMU system management unit 1335SNAP Sub-Network Access Protocol 1336SNIA Storage Networking Industry Association 1337SNMP Simple Network Management Protocol 1338SNR signal-to-noise ratio 1339SOA service oriented architecture 1340SOAP Simple Object Access Protocol 1341SOC system on chip 1342SOF start of frame 1343SOH start of header 1344SOHO small office/home office 1345SOL serial over LAN 1346SP service pack 1347SP stack pointer 1348SPA storage pool allocator 1349SPARC scalable processor architecture 1350SPARQL SPARQL Protocol and RDF Query Language 1351SPD security policy database 1352SPD serial presence detect 1353SPDIF Sony/Philips digital interface format 1354SPI serial peripheral interface 1355SPI stateful packet inspection 1356SPL system interrupt priority level 1357SPL spinlock 1358SPMD single process, multiple data 1359SPR special purpose register 1360SPT sectors per track 1361SQA software quality assurance 1362SQCIF sub quarter common intermediate format 1363SQL Structured Query Language 1364SRAM static random access memory 1365SRC sample rate conversion 1366SRP scsi rdma protocol 1367SS self-snoop 1368SS stack segment 1369SSA static single assignment 1370SSAP source service access point 1371SSB single-sideband modulation 1372SSD solid state drive 1373SSE streaming SIMD extensions 1374SSFDC solid state floppy disc card 1375SSH secure shell 1376SSI server side includes 1377SSID service set identifier 1378SSL secure sockets layer 1379SSP stack smashing protection 1380STC software thermal control 1381STD state transition diagram 1382STOMP Streaming Text Oriented Messaging Protocol 1383STP Spanning Tree Protocol 1384STP shielded twisted pair 1385SUS Single Unix Specification 1386SUT system under test 1387SVG scalable vector graphics 1388SVGA Super Video Graphics Array 1389SVI {switch,switched} virtual interface 1390SVM secure virtual machine 1391SVM support vector machine 1392SVR System V Release 1393SVS Separate Virtual Space 1394SWF Shockwave Flash 1395SWIG simplified wrapper [and] interface generator 1396SYR symbol timing recovery 1397TA test assertion 1398TA transmitter address 1399TAI international atomic time 1400TAO track at once 1401TAOCP The Art of Computer Programming 1402TAP Test Anything Protocol 1403TAS test and set 1404TB terabyte 1405TCB trace capture buffer 1406TCB trusted computing base 1407TCC thermal control circuit 1408TCL tool command language 1409TCP Transmission Control Protocol 1410TCQ tagged command queueing 1411TDC time [to] digital converter 1412TDD test-driven development 1413TDD time division duplex 1414TDM time division multiplexing 1415TDMA time division multiple access 1416TDOA time difference of arrival 1417TDP thermal design {point,power} 1418TECO Text Editor and Corrector 1419TFT thin film transistor 1420TFTP Trivial File Transfer Protocol 1421TIAS try it and see 1422TIFF tagged image file format 1423TITS try it to see 1424TK temporal key 1425TKIP Temporal Key Integrity Protocol 1426TLA top level aggregator 1427TLB translation lookaside buffer 1428TLD top level domain 1429TLS thread local storage 1430TLS transport layer security 1431TM Turing machine 1432TM thermal monitor 1433TMDS transition minimized differential signaling 1434TMO timeout 1435TOD time of day 1436TOS terms of service 1437TOS trusted operating system 1438TOS type of service 1439TP transaction processing 1440TPI tracks per inch 1441TPM transactions per minute 1442TPM trusted platform module 1443TPR task priority register 1444TPS transactions per second 1445TPS transmission parameters signaling 1446TR task register 1447TR token ring 1448TRL timing recovery loop 1449TRNG true random number generator 1450TS terminal services 1451TS time series 1452TS time stamp 1453TS transport stream 1454TSAN Thread Sanitizer 1455TSC time stamp counter 1456TSD time stamp disable 1457TSDB time series database 1458TSL test, set, lock 1459TSO time sharing option 1460TSO Total Store Ordering 1461TSP Time-Stamp Protocol 1462TSP Tunnel Setup Protocol 1463TSP time synchronization protocol 1464TSP traveling salesman problem 1465TSS task state segment 1466TTL time to live 1467TTL transistor-transistor logic 1468TTM translation table maps 1469TTY teletype 1470TUI {terminal,text-based,textual} user interface 1471TX {transmit out,transmitter} 1472TXG transaction group 1473TZ time zone 1474UAC user {access,account} control 1475UAF use-after-free 1476UART universal asynchronous receiver/transmitter 1477UAT user acceptance testing 1478UB undefined behavior 1479UBSAN Undefined Behavior Sanitizer 1480UC uncacheable 1481UCS uniform-cost search 1482UDMA ultra DMA 1483UDO ultra density optical 1484UDP User Datagram Protocol 1485UEFI unified extensible firmware interface 1486UFS Unix File System 1487UGA universal graphics adapter 1488UI unit interval 1489UI user interface 1490UID unique identifier 1491UID user identifier 1492UL upload 1493UMA uniform memory access 1494UMA upper memory area 1495UMB upper memory block 1496UML unified modeling language 1497UMPC ultra-mobile PC 1498UPNP universal plug and play 1499UPS uninterruptible power supply 1500URI uniform resource identifier 1501URL uniform resource locator 1502URN uniform resource name 1503USART universal synchronous/asynchronous receiver/transmitter 1504USB universal serial bus 1505USWC uncacheable speculative write combining 1506UT unit test 1507UTC coordinated universal time 1508UTP unshielded twisted pair 1509UUCP Unix-to-Unix Copy Protocol 1510UUID universally unique identifier 1511UUOC useless use of cat 1512UUT unit under test 1513UX user experience 1514VA vertical alignment 1515VA virtual address 1516VA volt-ampere 1517VAX virtual address extension 1518VB Visual Basic 1519VCA variable-gain amplifier 1520VCC common collector voltage 1521VCF voltage-controlled filter 1522VCM virtual channel memory 1523VCO voltage-controlled oscillator 1524VCS version control system 1525VESA Video Electronics Standards Association 1526VFO variable-frequency oscillator 1527VG volume group 1528VGA Video Graphics Array 1529VHDCI very high density cable interconnect 1530VID {VLAN,voltage level} identifier 1531VIM Vi IMproved 1532VIPT virtually indexed, physically tagged 1533VIVT virtually indexed, virtually tagged 1534VLAN virtual local area network 1535VLIW very long instruction word 1536VLSI very large scale integration 1537VLSM variable length subnet mask 1538VM virtual {machine,memory} 1539VME virtual mode extension 1540VMX vector multimedia extensions 1541VMX virtual machine extensions 1542VOD video on demand 1543VPN virtual private network 1544VR virtual reality 1545VRAM video random access memory 1546VRF virtual routing and forwarding 1547VRM voltage regulator module 1548VRRP Virtual Router Redundancy Protocol 1549VSTP VLAN Spanning Tree Protocol 1550VTP VLAN Trunking Protocol 1551W watt 1552W3C World Wide Web Consortium 1553WAMP Web Application Messaging Protocol 1554WAN wide area network 1555WAP Wireless Application Protocol 1556WAP wireless access point 1557WDM Windows Driver Model 1558WDDM Windows Display Driver Model 1559WDT watchdog timer 1560WEP Wired Equivalent Privacy 1561WFI wait for interrupt 1562WFQ weighted fair queuing 1563WH write hit 1564WIFI wireless fidelity 1565WLAN wireless local area network 1566WM write miss 1567WMI Windows Management Instrumentation 1568WOL Wake-on-LAN 1569WOM Wake-on-Modem 1570WOR Wake-on-Ring 1571WORM write once read many 1572WP WordPerfect 1573WP word processor 1574WP write protect 1575WPA Wi-Fi Protected Access 1576WPA2 Wi-Fi Protected Access II 1577WPS Wi-Fi Protected Setup 1578WRAM window random access memory 1579WS web services 1580WTC write through caching 1581WWAN wireless wide area network 1582WWW world wide web 1583WYSIAYG what you see is all you get 1584WYSIWYG what you see is what you get 1585XBAR crossbar 1586XDMCP X Display Manager control protocol 1587XER XML encoding rules 1588XGA Extended Graphics Array 1589XHR XMLHttpRequest 1590XIP execute in place 1591XML Extensible Markup Language 1592XOR exclusive or 1593XP extreme programming 1594XSI X/Open System Interface 1595XSL extensible stylesheet language 1596XSS cross site scripting 1597XT extended technology 1598XUL XML user interface language 1599YACC yet another compiler compiler 1600YAML YAML ain't markup language 1601YANG yet another next generation 1602YAWPFAPR you are welcome; please file a problem report 1603YP Yellow Pages 1604YTD year to date 1605ZAP ZFS attribute processor 1606ZBR zone bit recording 1607ZFOD zero-filled on demand 1608ZFS zettabyte file system 1609ZIF zero insertion force 1610ZIFS zero insertion force socket 1611ZIL ZFS intent log 1612ZMA zone multicast address 1613ZPL ZFS Posix layer 1614ZVOL ZFS Volume 1615