acronyms.comp revision 1.183
1$NetBSD: acronyms.comp,v 1.183 2017/05/12 21:14:47 kamil 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 9AC alternating current 10ACI adjacent channel interferer 11ACID atomicity, consistency, isolation, durability 12ACK Amsterdam compiler kit 13ACK acknowledgement 14ACL access control list 15ACL active current loop 16ACP auxillary control {process,program} 17ACPI advanced configuration and power interface 18ACS access control set 19ACU automatic calling unit 20ADB Apple desktop bus 21ADC analog [to] digital converter 22ADD acronym driven development 23ADO active data objects 24ADP automatic data processing 25ADPCM adaptive differential pulse code modulation 26ADS alternate data stream 27ADSL asymmetric digital subscriber line 28ADT abstract data type 29AES Advanced Encryption Standard 30AFS Andrew File System 31AGC automatic gain control 32AGP accelerated graphics port 33AI analog input 34AI artificial intelligence 35AL access list 36AL active link 37ALE address latch enable 38ALS ambient light sensor 39ALU arithmetic and logical unit 40ALUA asymmetric logical unit access 41AM access method 42AM alignment mask 43AM amplitude modulation 44AMI alternate mark inversion 45AMP asymmetric multiprocessing 46AMQP advanced message queuing protocol 47AMT active management technology 48AN Arabic number 49ANSI American National Standards Institute 50AO analog output 51AOL Alert-on-LAN 52AOS add or subtract 53AP access point 54AP application processor 55API application programming interface 56APIC advanced programmable interrupt controller 57APIPA automatic private IP addressing 58APT advanced persistent threat 59AQM active queue management 60ARAT always running APIC timer 61ARC adaptive replacement cache 62ARM Advanced RISC Machines 63ARP Address Resolution Protocol 64ARPA Advanced Research Projects Agency 65ARQ automatic repeat request 66ARR address range register 67ARU audio response unit 68AS autonomous system 69ASC advanced smart cache 70ASCII American Standard Code for Information Interchange 71ASD agile software development 72ASE advanced software environment 73ASIC application-specific integrated circuit 74ASK amplitude shif keying 75ASLR address space layout randomization 76ASN autonomous system number 77ASPM active state power management 78ASQ automated software quality 79ASR address space register 80AST abstract syntax tree 81AST asynchronous trap 82AT access time 83AT advanced technology 84ATA advanced technology attachment 85ATAPI advanced technology attachment packet interface 86ATC address translation cache 87ATM asynchronous transfer mode 88ATX advanced technology extended 89AV anti virus 90AVL Adelson-Velsky-Landis 91AVX advanced vector extensions 92BA byte align 93BAL basic assembly language 94BAR base address register 95BBS bulletin board system 96BCC blind carbon copy 97BCD binary coded decimal 98BCR byte count register 99BCS base configuration space 100BD baud 101BDD binary decision diagram 102BDI bit deinterleave 103BDUF big design up front 104BEDO burst extended data output 105BER basic encoding rules 106BER bit error {rate,ratio} 107BFD binary {file,format} descriptor 108BFKL big fscking kernel lock 109BFS breadth-first search 110BFT binary file transfer 111BGA ball grid array 112BGP Border Gateway Protocol 113BGPSEC BGP Security 114BIND Berkeley Internet Name Daemon 115BIOS Basic Input/Output System 116BIOS built-in operating system 117BIST built-in self-test 118BIU bus interface unit 119BKDG BIOS and kernel developer's guide 120BLAS basic linear algebra subprograms 121BLC back light control 122BLOB binary large object 123BM bus master 124BMC baseboard management controller 125BMIC bus master interface controller 126BN boundary neutral 127BNF Backus-Naur form 128BO binary output 129BOF beginning of file 130BOM beginning of message 131BOM byte order mark 132BP base pointer 133BP boot processor 134BPB BIOS parameter block 135BPDU bridge protocol data unit 136BPF Berkeley Packet Filter 137BPI bits per inch 138BPM business process modelling 139BPS bits per second 140BPSK binary phase shift keying 141BQS Berkeley quality software 142BRE basic regular expression 143BS backspace 144BS binary sequence 145BSA basic service area 146BSD Berkeley Software Distribution 147BSF bit scan forward 148BSOD blue screen of death 149BSP binary space partition 150BSP bootstrap processor 151BSR bit scan reverse 152BSS basic service set 153BSS block started by symbol 154BSSID basic service set identifier 155BT BitTorrent 156BT Bluetooth 157BT bit test 158BTC bit test [and] complement 159BTR bit test [and] reset 160BTS bit test [and] set 161BTS bug tracking system 162BW bandwidth 163BWM block-write mode 164CA certificate authority 165CAD computer-aided design 166CAM computer assisted manufacturing 167CAM conditional access module 168CAM content addressable memory 169CARP Common Address Redundancy Protocol 170CAS column address strobe 171CAS compare and swap 172CAS computer algebra system 173CASE computer aided software engineering 174CAU control access unit 175CAV constant angular velocity 176CBC cipher block chaining 177CBR constant bit rate 178CC carbon coby 179CCD charge coupled device 180CCI co-channel interferer 181CCNUMA cache-coherent non-uniform memory access 182CD cache disable 183CD compact disc 184CDDA compact disc digital audio 185CDMA code division multiple access 186CDP Cisco Discovery Protocol 187CDRAM cache dynamic random access memory 188CER canonical encoding rules 189CF compact flash 190CFB cipher feedback 191CFG context-free grammar 192CFG control-flow graph 193CG control gate 194CGA Color Graphics Adapter 195CGI common gateway interface 196CGN Carrier-Grade NAT 197CHAP Challenge-Handshake Authentication Protocol 198CHS cylinder/head/sector 199CI continuous integration 200CI {common,component} interface 201CIDR Classless Inter-Domain Routing 202CIFS Common Internet File System 203CIL common intermediate language 204CIR carrier-to-interference ratio 205CIS contact image sensor 206CISC complex instruction set {computer,computing} 207CJK Chinese, Japanese, [and] Korean 208CLF common log format 209CLI command line interface 210CLR common language runtime 211CLTT closed loop thermal throttling 212CLUT color look-up table 213CLV constant linear velocity 214CM configuration management 215CMA concert multithread architecture 216CMI control management interface 217CMI control method interface 218CMOS complementary metal-oxide-semiconductor 219CMP chip multi-processing 220CMS content management system 221CMYK cyan magenta yellow black 222CN {common,canonical} name 223CNC computer numerical control 224CNR carrier-to-noise ratio 225COF current operating frequency 226COFDM coded orthogonal frequency division multiplexing 227COFF common object file format 228COM component object model 229COMA cache-only memory architecture 230CORBA common object request broker architecture 231COW copy-on-write 232CP continuous pilot 233CPB core performance boost 234CPE common phase error 235CPG clock pulse generator 236CPL current privilege level 237CPLD complex programmable logic device 238CPP C preprocessor 239CPS characters per second 240CPT command pass through 241CPU central processing unit 242CR carriage return 243CRC cyclic redundancy check 244CRL carrier recovery loop 245CRLF carriage return line feed 246CRT cathode ray tube 247CS cable select 248CS chip select 249CS code segment 250CS computer science 251CSI channel state information 252CSI common system interface 253CSMA carrier sense multiple access 254CSMA/CA carrier sense multiple access with collision avoidance 255CSMA/CD carrier sense multiple access with collision detection 256CSR control [and] status registers 257CSRG Computer Systems Research Group 258CSS cascading style sheets 259CSV comma-separated values 260CTM close to metal 261CTR counter [mode] 262CTS clear to send 263CUA common user access 264CUT coordinated universal time 265CV control voltage 266CVE common vulnerabilities and exposures 267CVS Concurrent Versions System 268DA destination address 269DAA distributed application architecture 270DAB digital audio broadcasting 271DAC digital [to] analog converter 272DAC discretionary access control 273DAD duplicate address detection 274DANE DNS-based Authentication of Named Entities 275DAO disk at once 276DAP Directory Access Protocol 277DAT digital audio tape 278DAT dynamic acceleration technology 279DB database 280DBA database administrator 281DBA dynamic bandwidth allocation 282DBB data bus buffer 283DBC design by contract 284DBL dynamic buffer limiting 285DBMS database management system 286DBS database server 287DC direct current 288DCC Direct Client-to-Client 289DCC direct cable connect 290DCD data carrier detect 291DCE data control equipment 292DCE distributed computing environment 293DCOM distributed component object model 294DCOP Desktop COmmunication Protocol 295DCS data collection systems 296DCT discrete cosine transform 297DCU data cache unit 298DDC display data channel 299DDE dynamic data exchange 300DDK device driver kit 301DDL data description language 302DDR double data rate 303DDS direct digital sound 304DDWG Digital Display Working Group 305DE debugging extensions 306DE desktop environment 307DEA data encryption algorithm 308DEK data encryption key 309DEP data execution prevention 310DER distinguished encoding rules 311DES Data Encryption Standard 312DF don't fragment 313DFA deterministic finite automaton 314DFC data flow control 315DFS depth first search 316DFS distributed file system 317DFT diagnostic function test 318DFT discrete Fourier transform 319DGL data generation language 320DH Diffie-Hellman 321DHCP Dynamic Host Configuration Protocol 322DIFS distributed inter-frame space 323DIMM dual inline memory module 324DIRT design in real time 325DL diode logic 326DL discrete logarithm 327DL download 328DLE data link escape 329DLL dynamic link library 330DLP discrete logarithm problem 331DMA direct memory access 332DMI desktop management interface 333DMS document management system 334DMT discrete multitone modulation 335DNARD Digital network appliance reference design 336DND drag and drop 337DNS Domain Name System 338DNSSEC DNS Security Extensions 339DOE distributed object environment 340DOF data over fibre 341DOM document object model 342DOS denial of service 343DOS disk operating system 344DP DisplayPort 345DPC deferred procedure call 346DPCM differential pulse code modulation 347DPD dead peer detection 348DPI deep packet inspection 349DPI dots per inch 350DPL descriptor privilege level 351DPS Display PostScript 352DPST display power savings technology 353DRAM dynamic random access memory 354DRBG deterministic random bit generator 355DRI direct rendering infrastructure 356DRM digital rights management 357DRRS display refresh rate switching 358DS debug store 359DSA digital signature algorithm 360DSAP destination service access point 361DSB double-sideband modulation 362DSDT differentiated system descriptor table 363DSL digital subscriber line 364DSL domain specific language 365DSLAM digital subscriber line access multiplexer 366DSN delivery status notification 367DSO dynamic shared object 368DSP digital signal processor 369DSSS direct sequence spread spectrum 370DTD document type definition 371DTE data terminal equipment 372DTE dumb terminal emulator 373DTL diode-transistor logic 374DTLS datagram transport layer security 375DTS digital thermal sensor 376DUT device under test 377DVB digital video broadcasting 378DVCS distributed version control system 379DVD digital versatile disc 380DVFS dynamic voltage and frequency scaling 381DVI device independent 382DVI Digital Visual Interface 383DVR digital video recorder 384E-XER extended XML encoding rules 385EABI embedded-application binary interface 386EAI Email Address Internationalization 387EAI Enterprise Application Integration 388EAP Extensible Authentication Protocol 389EAPOL EAP over Lan 390EBCDIC Extended Binary Coded Decimal Interchange Code 391EBR extended boot record 392EC elliptic curve 393ECC elliptic curve cryptography 394ECC error correction code 395ECDH elliptic curve Diffie-Hellman 396ECDL elliptic curve discrete logarithm 397ECDLP elliptic curve discrete logarithm problem 398ECDSA elliptic curve digital signature algorithm 399ECL emitter-coupled logic 400ECN explicit congestion notification 401ECP enhanced capability port 402ECS enhanced chip set 403ECS extended configuration space 404EDAT enhanced dynamic acceleration technology 405EdDSA Edwards curve digital signature algorithm 406EDGE explicit data graph execution 407EDID extended display identification data 408EDO extended data out 409EDS electronical data sheet 410EEE energy efficient ethernet 411EEPROM electrically erasable programmable read only memory 412EFI extensible firmware interface 413EFL emitter follower logic 414EFM eight to fourteen modulation 415EGA Enhanced Graphics Adapter 416EGP exterior gateway protocol 417EH extension header 418EIDE enhanced IDE 419EISA extended industry standard architecture 420ELF executable and linking format 421ELS entry level system 422EMI electro-magnetic interference 423EMP electro-magnetic pulse 424EMR electro-magnetic radiation 425EOF end of file 426EOI end of interrupt 427EOL end of line 428EOT end of transmission 429EPIC explicitly parallel instruction computing 430EPP enhanced parallel port 431EPRML extended partial response, maximum likelihood 432EPROM erasable programmable read only memory 433ERD emergency recovery disk 434ERD entity relationship diagram 435ERE extended regular expression 436ESDRAM enhanced synchronous dynamic random access memory 437ESS electronic switching system 438ESS extended service set 439ESSID extended service set identifier 440EST enhanced speedstep 441ETL extract, transform, load 442EU execution unit 443EULA end user license agreement 444FAT file allocation table 445FBRAM frame buffer random access memory 446FCL fiber channel loop 447FCS frame check sequence 448FDC floppy disk controller 449FDD floppy disk drive 450FDDI fiber distributed data interface 451FDE full disk encryption 452FEA finite element analysis 453FEC forward error correction 454FET field-effect transistor 455FF finite field 456FF form feed 457FFDH finite-field Diffie-Hellman 458FFH functional fixed hardware 459FFI foreign function interface 460FFM focus follows mouse 461FFS Fast File System 462FFS find first set 463FFT fast Fourier transform 464FG floating gate 465FHSS frequency hop spread spectrum 466FID frequency identifier 467FIFO first in, first out 468FILO first in, last out 469FIPS Federal Information Processing Standards 470FIR fast infrared 471FLOPS floating [point] operations per second 472FLOSS free/libre/open source software 473FM frequency modulation 474FMR false match rate 475FOSS free/open source software 476FPGA field programmable gate array 477FPM fast page mode 478FPR floating point register 479FPU floating point unit 480FQDN fully qualified domain name 481FRR false rejection rate 482FRU field replaceable unit 483FS file system 484FSB front side bus 485FSCK file system check 486FSF Free Software Foundation 487FSK frequency shift keying 488FSM finite-state machine 489FTA fault tree analysis 490FTL flash translation layer 491FTP File Transfer Protocol 492FTPS File Transfer Protocol Secure 493FUS fast user switching 494FWH firmware hub 495FWS folding white space 496GAL generic array logic 497GAS generic address structure 498GC garbage collector 499GCM Galois counter mode 500GCR group-coded recording 501GDT global descriptor table 502GEM graphics environment manager 503GEM graphics execution manager 504GENA general event notification architecture 505GHC Glasgow Haskell compiler 506GID group identifier 507GIF graphics interchange format 508GMCH graphics and memory controller hub 509GNU GNU's Not Unix 510GOP graphics output protocol 511GOT global offset table 512GPE general purpose event 513GPF general protection fault 514GPG GNU Privacy Guard 515GPL [GNU] General Public License 516GPR general purpose register 517GPS generalized processor sharing 518GPT GUID partition table 519GPU graphics processing unit 520GR golden ratio 521GRE generic routing encapsulation 522GSI global system interrupt 523GUI graphical user interface 524GUID globally unique identifier 525HA high availability 526HAL hardware abstraction layer 527HAT hashed array tree 528HBA host bus adapter 529HCF halt and catch fire 530HCI host controller interface 531HCI human-computer interaction 532HCL hardware compatibility list 533HDCP High-bandwidth Digital Content Protection 534HDD hard disk drive 535HDL hardware description language 536HDMI High-Definition Multimedia Interface 537HDTV high-definition television 538HF high frequency 539HFM highest frequency mode 540HID human interface device 541HLL high-level language 542HMA high memory area 543HMI human-machine interface 544HOOD hierarchical object oriented design 545HP Hewlett-Packard 546HPC high performance computing 547HPET high precision event timer 548HSM hardware security module 549HSM hierarchical storage management 550HT hyper-threading 551HTC hardware thermal control 552HTCC high temperature co-fired ceramic 553HTML HyperText Markup Language 554HTT hyper-threading technology 555HTTP Hypertext Transfer Protocol 556HTTPS Hypertext Transfer Protocol Secure 557HVM hardware virtual machine 558HZ Hertz 559I2O intelligent input/output 560IA information assurance 561IANA Internet Assigned Numbers Authority 562IBC iterated block cipher 563IBM International Business Machines 564IBS instruction based sampling 565IBSS independent basic service set 566IC integrated circuit 567ICA independent computer architecture 568ICB Internet Citizen's Band 569ICE in-circuit emulator 570ICE internal compiler error 571ICH I/O controller hub 572ICMP Internet Control Message Protocol 573ICT information and communications technology 574ICW initialization command word 575IDA Intel dynamic acceleration 576IDCMP Intuition direct communication message port 577IDE integrated development environment 578IDE integrated drive electronics 579IDPS intrusion detection [and] prevention system 580IDRP inter-domain routing protocol 581IDS intrusion detection system 582IDT interrupt descriptor table 583IE Internet Explorer 584IEC International Electrotechnical Commission 585IEEE Institute of Electrical and Electronics Engineers 586IESG Internet Engineering Steering Group 587IETF Internet Engineering Task Force 588IF intermediate frequency 589IFCM isochronous flow control mode 590IFF Interchange File Format 591IGD Internet gateway device 592IGMP Internet Group Management Protocol 593IGP interior gateway protocol 594IHV independent hardware vendor 595IKE Internet key exchange 596ILM internal loopback mode 597ILOM integrated lights-out management 598ILP instruction level parallelism 599IM instant messaging 600IMAP Internet Message Access Protocol 601IMC integrated memory controller 602IMCR interrupt mode configuration register 603IMR interrupt mask register 604IMS information management system 605INCITS InterNational Committee for Information Technology Standards 606IO input/output 607IOCTL input/output control 608IOMMU input/output memory management unit 609IOT Internet of Things 610IP Internet Protocol 611IP intellectual property 612IPC interprocess communication 613IPE integrated programming environment 614IPI interprocessor interrupt 615IPNG Internet Protocol, Next Generation 616IPS in-plane switching 617IPS intrusion prevention system 618IPSEC Internet Protocol Security 619IRC Internet Relay Chat 620IRDA infrared data association 621IRQ interrupt request 622IRQL interrupt request level 623IRR interrupt request register 624IRTF Internet Research Task Force 625IS information system 626ISA industry standard architecture 627ISA instruction set architecture 628ISDN integrated services digital network 629ISI inter-symbol interference 630ISM industrial, scientific, [and] medical 631ISN initial serial number 632ISO International Standards Organization 633ISOC Internet Society 634ISP Internet service provider 635ISR in-service register 636ISR interrupt service routine 637IST interrupt stack table 638ISV independent software vendor 639IT information technology 640ITB Intel Turbo Boost 641ITIL information technology infrastructure library 642ITSM IT service management 643IV initialization vector 644IVT interrupt vector table 645JBOD just a bunch of disks 646JFET junction [gate] field-effect transistor 647JIT just in time 648JPEG Joint Photographic Experts Group 649JRE Java Runtime Environment 650JTAG joint test action group 651KB keyboard 652KB kilobyte 653KBD keyboard 654KBD kilobaud 655KLOC thousand lines of code 656KMS kernel-mode setting 657KPI kernel programming interface 658KVA kernel virtual address 659KVM kernel virtual machine 660KVM kernel virtual memory 661KVM keyboard, video, [and] mouse 662LAMP Linux Apache MySQL {Perl,PHP,Python} 663LAN local area network 664LAPIC local advanced programmable interrupt controller 665LAR load access rights 666LBA logical block addressing 667LBS location-based service 668LCD liquid crystal display 669LCP link control protocol 670LDA local delivery agent 671LDAP Lightweight Directory Access Protocol 672LDR light-dependent resistor 673LDT local descriptor table 674LE logical extent 675LED light emitting diode 676LER label edge router 677LF line feed 678LF low frequency 679LFM lowest frequency mode 680LFN long file names 681LFO low-frequency oscillation 682LFS log-structured file system 683LFU least frequently used 684LHP loop heat pipe 685LIFO last in, first out 686LILO LInux LOader 687LILO last in, last out 688LINT local interrupt 689LIR local Internet registry 690LKM {Linux,loadable} kernel module 691LKML Linux kernel mailing list 692LL load linked 693LL/SC load linked/store conditional 694LLC logical link control 695LLDP link layer discovery protocol 696LLF low level format 697LLMNR link-local multicast name resolution 698LLVM Low Level Virtual Machine 699LM long mode 700LMM link management mode 701LNO loop nest optimization 702LOC lines of code 703LOM lights-out management 704LPC low pin count 705LPS local positioning system 706LRC longitudinal redundancy check 707LRM left-to-right mark 708LRO left-to-right override 709LRU least recently used 710LSB Linux standards base 711LSB least significant {bit,byte} 712LSI large scale integration 713LSL load segment limit 714LSN Large Scale NAT 715LSN log sequence number 716LSR label switch router 717LTCC low temperature co-fired ceramic 718LTO link time optimization 719LTR left to right 720LTR load task register 721LTR letter(-sized paper) 722LTS long term support 723LUA Lua Uppercase Accident 724LUN logical unit number 725LV logical volume 726LVM logical volume management 727LVT local vector table 728LWP light-weight process 729LZW Lempel Ziv Welch 730MAC mandatory access control 731MAC {media,medium} access control 732MAC message authentication {check,code} 733MADT multiple APIC descriptor table 734MB megabyte 735MBA multi-boot agent 736MBR master boot record 737MBS megabits per second 738MC memory controller 739MCA machine check architecture 740MCA MicroChannel architecture 741MCC multiversion concurrency control 742MCE machine check exception 743MCGA Multi-Color Graphics Array 744MCH memory controller hub 745MCM multi-chip module 746MCQ memory controlled queue 747MD machine-dependent 748MDA mail delivery agent 749MDA Monochrome Display Adapter 750MDRAM multibank dynamic random access memory 751MESI modified, exclusive, shared, invalid 752MFC merge from current 753MFC Microsoft Foundation Classes 754MFM modified frequency modulation 755MI machine-independent 756MIB management information base 757MIC message integrity {check,code} 758MID mobile Internet device 759MIDI musical instrument digital interface 760MIF management information format 761MII media independent interface 762MIM man in the middle 763MIMD multiple instruction, multiple data 764MIME Multipurpose Internet Mail Extensions 765MIMO multiple input multiple output 766MIPS million instructions per second 767MISD multiple instruction, single data 768MIT Massachusetts Institute of Technology 769MITM man in the middle 770ML machine language 771ML machine learning 772ML mailing list 773ML markup language 774ML maximum likelihood 775MLC multi-level cell 776MLD multicast listener discovery 777MLHP micro loop heat pipe 778MMF multi-mode fiber 779MMIC monolithic microwave integrated circuit 780MMIO memory mapped input/output 781MMORPG massive multiplayer online role playing game 782MMU memory management unit 783MMX matrix math extension 784MMX multimedia extension 785MMX multiple math extension 786MO magneto-optical 787MOESI modified, owned, exclusive, shared, invalid 788MOF maximum operating frequency 789MOSFET metal-oxide-semiconductor field-effect transistor 790MOSI modified, owned, shared, invalid 791MP multi-platform 792MP multiplayer 793MP {multiprocessing,multiprocessor} 794MPEG moving picture experts group 795MPI message passing interface 796MPLS Multiprotocol Label Switching 797MPP massively parallel processor 798MPS memory pool system 799MPS multiprocessor specification 800MR modem ready 801MRU most recently used 802MS Microsoft 803MSB most significant {bit,byte} 804MSE mean square error 805MSF minutes seconds frames 806MSI message signaled interrupt 807MSI modified, shared, invalid 808MSR machine state register 809MSS maximum segment size 810MSTP Multiple Spanning Tree Protocol 811MT machine translation 812MTA mail transfer agent 813MTBF mean time between failures 814MTP media transfer protocol 815MTRR memory type range register 816MTTF mean time to failure 817MTU maximum transmission unit 818MUA mail user agent 819MUD multi-user domain 820MVCC multiversion concurrency control 821MWE module width encoding 822MX mail exchange 823NACK negative acknowledgement 824NAN not a number 825NAPT Network Address Port Translation 826NAS network attached storage 827NAT network address translation 828NAV network allocation vector 829NC numerical control 830NCO numerically-controlled oscillator 831NCP Network Control Protocol 832NCQ native command queuing 833ND neighbor discovery 834NDFA nondeterministic finite automaton 835NE numeric error 836NFA nondeterministic finite automaton 837NFC near-field communication 838NFCI no functional change intended 839NFS network file system 840NIA next instruction address 841NIC network information center 842NIC network interface card 843NIDS network intrusion detection system 844NIP network interface protocol 845NIPS network intrusion prevention system 846NIS network information service 847NIST National Institute of Standards and Technology 848NLS native language support 849NMI non-maskable interrupt 850NNTP Network News Transfer Protocol 851NOC network operations center 852NOP no operation 853NOS network operating system 854NP nondeterministic polynomial time 855NRZ non-return to zero 856NSA nation-state adversary 857NSA no such agency 858NSA National Security Agency 859NTM non-deterministic Turing machine 860NTP Network Time Protocol 861NUMA non-uniform memory access 862NVRAM non-volatile random access memory 863NW not write-through 864NX no execute 865OAEP optimal asymmetric encryption padding 866OBO off by one 867OBOE off by one error 868OCL object constraint language 869OCR optical character recognition 870ODCM on-demand clock modulation 871ODT on-die termination 872OEM original equipment manufacturer 873OFB output feedback 874OFDM orthogonal frequency division multiplexing 875OFET organic field-effect transistor 876OLAP online analytical processing 877OLE object linking and embedding 878OLTP online transaction processing 879ONFI open nand flash interface 880OO OpenOffice 881OO object oriented 882OOB out of band 883OOE out of order execution 884OOM out of memory 885OOO OpenOffice.org 886OOP object oriented programming 887OOPS object oriented programming systems 888OOSE object oriented software engineering 889OPM operations per minute 890OPS operations per second 891OQL Object Query Language 892ORB object request broker 893ORM object-relational mapping 894OS operating system 895OSD open source definition 896OSF open software foundation 897OSI Open Source Initiative 898OSI open systems interconnection 899OSPF open shortest path first 900OSPM OS power management 901OSS open sound system 902OSS open source software 903OSVW operating system visible workarounds 904OTP one time password 905OTP open telecom platform 906OU organizational unit 907OUI organizationally unique identifier 908OWL Web Ontology Language 909P2P PCI to PCI 910P2P peer to peer 911PA phase accumulator 912PA physical address 913PAC phase-amplitude converter 914PAE physical address extension 915PAL phase alternating line 916PAL programmable array logic 917PAM pluggable authentication modules 918PAM pulse amplitude modulation 919PAP password authentication protocol 920PAT page attribute table 921PAT port address translation 922PATA parallel ATA 923PAX portable archive exchange 924PBE pending break encoding 925PBE programming by example 926PC personal computer 927PC program counter 928PCB printed circuit board 929PCB process control block 930PCC Portable C Compiler 931PCD page-level cache disable 932PCE performance-monitor counter enable 933PCI peripheral component interconnect 934PCM phase change memory 935PCM pulse code modulation 936PCMCIA Personal Computer Memory Card International Association 937PCP Port Control Protocol 938PD public domain 939PDA personal digital assistant 940PDA pushdown automaton 941PDAG propositional directed acyclic graph 942PDB power distribution board 943PDF portable document format 944PDM pulse-duration modulation 945PDN pull-down network 946PDP page {descriptor,directory} page 947PDS product data sheet 948PDU protocol data unit 949PE protection enable 950PEAP Protected EAP 951PECI platform environment control interface 952PEP protocol extension protocol 953PER packed encoding rules 954PFS perfect forward secrecy 955PGAS partitioned global address space 956PGE page global enable 957PGP Pretty Good Privacy 958PHB PCI host bridge 959PHP PHP: Hypertext Preprocessor 960PIC position independent code 961PIC programmable interrupt controller 962PICNIC problem in chair, not in computer 963PID process id 964PIE position independent executable 965PIL Priority Interrupt Level 966PIM personal information manager 967PIM platform-independent model 968PIO programmed input/output 969PIPT physically indexed, physically tagged 970PIQ prefetch input queue 971PIT programmable interrupt timer 972PIV personal identity verification 973PKCS public-key cryptography standards 974PKI public key infrastructure 975PLC programmable logic controller 976PLD programmable logic device 977PLL phase locked loop 978PLRU pseudo LRU 979PLTM package level thermal management 980PM power management 981PM {phase,pulse} modulation 982PME power management event 983PMI platform management interrupt 984PMIO port-mapped input/output 985PMT photo-multiplier tube 986PMU power management unit 987PNG portable network graphics 988PNP plug and play 989POE power over ethernet 990POF probability of failure 991POP Post Office Protocol 992POP power on password 993POSIX Portable Operating System Interface [for Unix] 994POST power on self test 995POTS plain old telephone system 996PP pair programming 997PPB PCI [to] PCI bridge 998PPC PowerPC 999PPI pixels per inch 1000PPM pages per minute 1001PPP Point-to-Point Protocol 1002PPPOA Point-to-Point Protocol over ATM 1003PPPOE Point-to-Point Protocol over Ethernet 1004PPU physics processing unit 1005PRBS pseudorandom bit sequence 1006PRG pseudorandom generator 1007PRF pseudorandom function [family] 1008PRML partial response, maximum likelihood 1009PRN pseudorandom {noise,number} 1010PRNG pseudorandom number generator 1011PROM programmable read only memory 1012PRP pseudorandom permutation 1013PSD power spectral density 1014PSE page size extensions 1015PSK phase shift keying 1016PSK pre-shared key 1017PSTN public switched telephone network 1018PSW program status word 1019PTE page table entry 1020PTLA pseudo top level aggregator 1021PTP page table page 1022PTV perceived target value 1023PU processing unit 1024PUN physical unit number 1025PV physical volume 1026PVG physical volume group 1027PVI protected-mode virtual interrupt 1028PVST Per-VLAN Spanning Tree 1029PWM pulse width modulation 1030PXE preboot execution environment 1031QA quality assurance 1032QAM quadrature amplitude modulation 1033QAM quality assurance management 1034QBE query by example 1035QC quality control 1036QDI quasi delay insensitive 1037QOS quality of service 1038QVL qualified vendor list 1039R/O read only 1040R/W read/write 1041RA receiver address 1042RA remote assistance 1043RA resource affinity 1044RA router advertisement 1045RAD rapid application development 1046RAID redundant array of {independent,inexpensive} disks 1047RAM random access memory 1048RAS reliability, availability and serviceability 1049RAS remote access service 1050RAS restartable atomic sequence 1051RAS row address strobe 1052RBF radial basis function 1053RBT red-black tree 1054RC release candidate 1055RC remote control 1056RCS Revision Control System 1057RCS revision control system 1058RCU read, copy, update 1059RDB Rigid Disk Block 1060RDBMS relational database management system 1061RDF Resource Description Framework 1062RDM relational data model 1063RDMA remote direct memory access 1064RE regular expression 1065REST representational state transfer 1066RF radio frequency 1067RFI radio frequency interference 1068RFO request for ownership 1069RGB red green blue 1070RGBA red green blue alpha 1071RGMII reduced gigabit media independent interface 1072RH read hit 1073RHEL Red Hat Enterprise Linux 1074RHL Red Hat Linux 1075RIB routing information base 1076RIFF Resource Interchange File Format 1077RIP Routing Information Protocol 1078RIR regional Internet registry 1079RISC reduced instruction set {computer,computing} 1080RKM ROM Kernel Manual 1081RLE run length encoding 1082RLL run length limited 1083RLO right-to-left override 1084RM read miss 1085RMI remote method invocation 1086RMO Relaxed Memory Ordering 1087RMPM rapid memory power management 1088RMS root mean square 1089RMW read, modify, write 1090RNG random number generator 1091ROM read only memory 1092RPC remote procedure call 1093RPKI resource PKI 1094RPL requested privilege level 1095RPM revolutions per minute 1096RPN reverse Polish notation 1097RPVST Rapid Per-VLAN Spanning Tree 1098RR random replacement 1099RR round robin 1100RS relay station 1101RSA Rivest, Shamir, [and] Adleman 1102RSIP Realm Specific IP 1103RSN Robust Secure Network 1104RSS really simple syndication 1105RSS residual sum of squares 1106RSTP Rapid Spanning Tree Protocol 1107RT real time 1108RTC real time clock 1109RTC real time computing 1110RTF rich text format 1111RTL register transfer language 1112RTL resistor-transistor logic 1113RTL right to left 1114RTOS real time operating system 1115RTS request to send 1116RTT round trip time 1117RUP rational unified process 1118RW Rabin-Williams 1119RWM read-write memory 1120RX {receive,receiver} 1121S/PDIF Sony/Philips Digital Interface Format 1122SA security advisory 1123SA security association 1124SA source address 1125SA structured analysis 1126SAAS software as a service 1127SACD super audio compact disc 1128SAD security association database 1129SAL system abstraction layer 1130SAM serial access memory 1131SAM sum addressed memory 1132SAN storage area network 1133SAP service access point 1134SAPIC streamlined advanced programmable interrupt controller 1135SASD structured analysis, structured design 1136SASI Shugart Associates System Interface 1137SASL simple authentication [and] security layer 1138SATA serial advanced technology attachment 1139SB sound blaster 1140SBU standard build unit 1141SC store conditional 1142SCA source code analyzer 1143SCADA supervisory control and data acquisition 1144SCC single chip cloud 1145SCC source code control 1146SCCS Source Code Control System 1147SCI scalable coherent interface 1148SCI system control interrupt 1149SCM software configuration management 1150SCM source code management 1151SCM storage-class memory 1152SCP secure copy 1153SCSI Small Computer System Interface 1154SCTP Stream Control Transmission Protocol 1155SDI symbol deinterleave 1156SDK software development kit 1157SDL Simple Declarative Language 1158SDL Simple Direct-media Layer 1159SDRAM synchronous dynamic random access memory 1160SDT syntax-directed translation 1161SEGV segmentation violation 1162SEO search engine optimization 1163SFC sequential function chart 1164SFI simple firmware interface 1165SFI software fault isolation 1166SFTP SSH File Transfer Protocol 1167SFTP Serial File Transfer Protocol 1168SFTP Simple File Transfer Protocol 1169SGMII serial gigabit media independent interface 1170SGRAM synchronous graphics random access memory 1171SHA secure hash algorithm 1172SIDH supersingular isogeny Diffie-Hellman 1173SIEM security information and event management 1174SIFS short inter-frame space 1175SIMD single instruction, multiple data 1176SIMM single inline memory module 1177SIP Session Initiation Protocol 1178SIR signal-to-interference ratio 1179SIR slow infrared 1180SISD single instruction, single data 1181SLC single-level cell 1182SLDRAM synchronous-link dynamic random access memory 1183SLED single large expensive disk 1184SLI scalable link interface 1185SLI scan-line interleave 1186SLOC source lines of code 1187SLRU segmented LRU 1188SMA smart memory access 1189SMAF system management action field 1190SMAP Simple Mail Access Protocol 1191SMAP supervisor mode access prevention 1192SMART self-monitoring analysis and reporting technology 1193SMBIOS System Management BIOS 1194SMC system management controller 1195SMF single mode fiber 1196SMI structure of management information 1197SMI system management interrupt 1198SMM system management mode 1199SMP symmetric multiprocessing 1200SMT simultaneous multithreading 1201SMTP Simple Mail Transfer Protocol 1202SMU system management unit 1203SNAP Sub-Network Access Protocol 1204SNMP Simple Network Management Protocol 1205SNR signal-to-noise ratio 1206SOA service oriented architecture 1207SOAP Simple Object Access Protocol 1208SOC system on chip 1209SOF start of frame 1210SOH start of header 1211SOHO small office/home office 1212SOL serial over LAN 1213SP service pack 1214SP stack pointer 1215SPARC scalable processor architecture 1216SPARQL SPARQL Protocol and RDF Query Language 1217SPD security policy database 1218SPD serial presence detect 1219SPDIF Sony/Philips digital interface format 1220SPI serial peripheral interface 1221SPI stateful packet inspection 1222SPL system interrupt priority level 1223SPL spinlock 1224SPMD single process, multiple data 1225SPR special purpose register 1226SPT sectors per track 1227SQA software quality assurance 1228SQL Structured Query Language 1229SRAM static random access memory 1230SRC sample rate conversion 1231SS self-snoop 1232SS stack segment 1233SSA static single assignment 1234SSAP source service access point 1235SSB single-sideband modulation 1236SSD solid state drive 1237SSE streaming SIMD extensions 1238SSFDC solid state floppy disc card 1239SSH secure shell 1240SSI server side includes 1241SSID service set identifier 1242SSL secure sockets layer 1243SSP stack smashing protection 1244STC software thermal control 1245STD state transition diagram 1246STP Spanning Tree Protocol 1247STP shielded twisted pair 1248SUS Single Unix Specification 1249SUT system under test 1250SVG scalable vector graphics 1251SVGA Super Video Graphics Array 1252SVM secure virtual machine 1253SVM support vector machine 1254SVR System V Release 1255SWF Shockwave Flash 1256SWIG simplified wrapper [and] interface generator 1257SYR symbol timing recovery 1258TA test assertion 1259TA transmitter address 1260TAI international atomic time 1261TAO track at once 1262TAOCP The Art of Computer Programming 1263TAP Test Anything Protocol 1264TAS test and set 1265TB terabyte 1266TCB trace capture buffer 1267TCB trusted computing base 1268TCC thermal control circuit 1269TCL tool command language 1270TCP Transmission Control Protocol 1271TCQ tagged command queueing 1272TDC time [to] digital converter 1273TDD test driven development 1274TDD time division duplex 1275TDM time division multiplexing 1276TDMA time division multiple access 1277TDOA time difference of arrival 1278TDP thermal design {point,power} 1279TECO Text Editor and Corrector 1280TFT thin film transistor 1281TFTP Trivial File Transfer Protocol 1282TIAS try it and see 1283TIFF tagged image file format 1284TITS try it to see 1285TK temporal key 1286TKIP Temporal Key Integrity Protocol 1287TLA top level aggregator 1288TLB translation lookaside buffer 1289TLD top level domain 1290TLS thread local storage 1291TLS transport layer security 1292TM Turing machine 1293TM thermal monitor 1294TMDS transition minimized differential signaling 1295TMO timeout 1296TOD time of day 1297TOS terms of service 1298TOS trusted operating system 1299TOS type of service 1300TP transaction processing 1301TPI tracks per inch 1302TPM transactions per minute 1303TPM trusted platform module 1304TPR task priority register 1305TPS transactions per second 1306TPS transmission parameters signaling 1307TR task register 1308TR token ring 1309TRL timing recovery loop 1310TRNG true random number generator 1311TS terminal services 1312TS time series 1313TS time stamp 1314TS transport stream 1315TSC time stamp counter 1316TSD time stamp disable 1317TSL test, set, lock 1318TSO time sharing option 1319TSO Total Store Ordering 1320TSP Time-Stamp Protocol 1321TSP Tunnel Setup Protocol 1322TSP time synchronization protocol 1323TSP traveling salesman problem 1324TSS task state segment 1325TTL time to live 1326TTL transistor-transistor logic 1327TTM translation table maps 1328TTY teletype 1329TUI {terminal,text-based,textual} user interface 1330TX {transmit out,transmitter} 1331TZ time zone 1332UAC user {access,account} control 1333UAF use-after-free 1334UART universal asynchronous receiver/transmitter 1335UAT user acceptance testing 1336UB undefined behavior 1337UC uncacheable 1338UCS uniform-cost search 1339UDMA ultra DMA 1340UDO ultra density optical 1341UDP User Datagram Protocol 1342UEFI unified extensible firmware interface 1343UFS Unix File System 1344UGA universal graphics adapter 1345UI unit interval 1346UI user interface 1347UID unique identifier 1348UID user identifier 1349UL upload 1350UMA uniform memory access 1351UMA upper memory area 1352UMB upper memory block 1353UML unified modeling language 1354UMPC ultra-mobile PC 1355UPNP universal plug and play 1356UPS uninterruptible power supply 1357URI uniform resource identifier 1358URL uniform resource locator 1359URN uniform resource name 1360USART universal synchronous/asynchronous receiver/transmitter 1361USB universal serial bus 1362USWC uncacheable speculative write combining 1363UT unit test 1364UTC coordinated universal time 1365UTP unshielded twisted pair 1366UUCP Unix-to-Unix Copy Protocol 1367UUID universally unique identifier 1368UUOC useless use of cat 1369UUT unit under test 1370UX user experience 1371VA vertical alignment 1372VA virtual address 1373VA volt-ampere 1374VAX virtual address extension 1375VB Visual Basic 1376VCA variable-gain amplifier 1377VCC common collector voltage 1378VCF voltage-controlled filter 1379VCM virtual channel memory 1380VCO voltage-controlled oscillator 1381VCS version control system 1382VESA Video Electronics Standards Association 1383VFO variable-frequency oscillator 1384VG volume group 1385VGA Video Graphics Array 1386VHDCI very high density cable interconnect 1387VID voltage level identifier 1388VIPT virtually indexed, physically tagged 1389VIVT virtually indexed, virtually tagged 1390VLAN virtual local area network 1391VLIW very long instruction word 1392VLSI very large scale integration 1393VLSM variable length subnet mask 1394VM virtual {machine,memory} 1395VME virtual mode extension 1396VMX vector multimedia extensions 1397VMX virtual machine extensions 1398VOD video on demand 1399VPN virtual private network 1400VR virtual reality 1401VRAM video random access memory 1402VRF virtual routing and forwarding 1403VRM voltage regulator module 1404VRRP Virtual Router Redundancy Protocol 1405VSTP VLAN Spanning Tree Protocol 1406VTP VLAN Trunking Protocol 1407W watt 1408W3C World Wide Web Consortium 1409WAN wide area network 1410WAP Wireless Application Protocol 1411WAP wireless access point 1412WDT watchdog timer 1413WEP Wired Equivalent Privacy 1414WFI wait for interrupt 1415WFQ weighted fair queuing 1416WH write hit 1417WIFI wireless fidelity 1418WLAN wireless local area network 1419WM write miss 1420WMI Windows Management Instrumentation 1421WOL Wake-on-LAN 1422WOM Wake-on-Modem 1423WOR Wake-on-Ring 1424WORM write once read many 1425WP WordPerfect 1426WP word processor 1427WP write protect 1428WPA Wi-Fi Protected Access 1429WPA2 Wi-Fi Protected Access II 1430WPS Wi-Fi Protected Setup 1431WRAM window random access memory 1432WS web services 1433WTC write through caching 1434WWAN wireless wide area network 1435WWW world wide web 1436WYSIWYG what you see is what you get 1437XBAR crossbar 1438XDMCP X Display Manager control protocol 1439XER XML encoding rules 1440XGA Extended Graphics Array 1441XIP execute in place 1442XML Extensible Markup Language 1443XOR exclusive or 1444XP extreme programming 1445XSI X/Open System Interface 1446XSL extensible stylesheet language 1447XSS cross site scripting 1448XT extended technology 1449XUL XML user interface language 1450YACC yet another compiler compiler 1451YAWPFAPR you are welcome; please file a problem report 1452YP Yellow Pages 1453YTD year to date 1454ZBR zone bit recording 1455ZFOD zero-filled on demand 1456ZIF zero insertion force 1457ZIFS zero insertion force socket 1458ZMA zone multicast address 1459