acronyms.comp revision 1.156
1$NetBSD: acronyms.comp,v 1.156 2016/01/08 08:37:18 jnemeth 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 45AMQP advanced message queuing protocol 46AMT active management technology 47AN Arabic number 48ANSI American National Standards Institute 49AO analog output 50AOL Alert-on-LAN 51AOS add or subtract 52AP access point 53AP application processor 54API application programming interface 55APIC advanced programmable interrupt controller 56APIPA automatic private IP addressing 57APT advanced persistent threat 58AQM active queue management 59ARAT always running APIC timer 60ARC adaptive replacement cache 61ARM Advanced RISC Machines 62ARP Address Resolution Protocol 63ARPA Advanced Research Projects Agency 64ARQ automatic repeat request 65ARR address range register 66ARU audio response unit 67AS autonomous system 68ASC advanced smart cache 69ASCII American Standard Code for Information Interchange 70ASD agile software development 71ASE advanced software environment 72ASIC application-specific integrated circuit 73ASK amplitude shif keying 74ASLR address space layout randomization 75ASN autonomous system number 76ASPM active state power management 77ASQ automated software quality 78ASR address space register 79AST abstract syntax tree 80AST asynchronous trap 81AT access time 82AT advanced technology 83ATA advanced technology attachment 84ATAPI advanced technology attachment packet interface 85ATC address translation cache 86ATM asynchronous transfer mode 87ATX advanced technology extended 88AV anti virus 89AVL Adelson-Velsky-Landis 90AVX advanced vector extensions 91BA byte align 92BAL basic assembly language 93BAR base address register 94BBS bulletin board system 95BCC blind carbon copy 96BCD binary coded decimal 97BCR byte count register 98BCS base configuration space 99BD baud 100BDD binary decision diagram 101BDI bit deinterleave 102BDUF big design up front 103BEDO burst extended data output 104BER basic encoding rules 105BER bit error {rate,ratio} 106BFD binary {file,format} descriptor 107BFKL big fscking kernel lock 108BFS breadth-first search 109BFT binary file transfer 110BGA ball grid array 111BGP Border Gateway Protocol 112BIND Berkeley Internet Name Daemon 113BIOS Basic Input/Output System 114BIOS built-in operating system 115BIST built-in self-test 116BIU bus interface unit 117BKDG BIOS and kernel developer's guide 118BLAS basic linear algebra subprograms 119BLC back light control 120BLOB binary large object 121BM bus master 122BMC baseboard management controller 123BMIC bus master interface controller 124BN boundary neutral 125BNF Backus-Naur form 126BO binary output 127BOF beginning of file 128BOM beginning of message 129BOM byte order mark 130BP base pointer 131BP boot processor 132BPB BIOS parameter block 133BPF Berkeley Packet Filter 134BPI bits per inch 135BPM business process modelling 136BPS bits per second 137BPSK binary phase shift keying 138BQS Berkeley quality software 139BRE basic regular expression 140BS backspace 141BS binary sequence 142BSA basic service area 143BSD Berkeley Software Distribution 144BSF bit scan forward 145BSOD blue screen of death 146BSP binary space partition 147BSP bootstrap processor 148BSR bit scan reverse 149BSS basic service set 150BSS block started by symbol 151BSSID basic service set identifier 152BT BitTorrent 153BT Bluetooth 154BT bit test 155BTC bit test [and] complement 156BTR bit test [and] reset 157BTS bit test [and] set 158BTS bits per second 159BW bandwidth 160BWM block-write mode 161CA certificate authority 162CAD computer-aided design 163CAM computer assisted manufacturing 164CAM conditional access module 165CAM content addressable memory 166CARP Common Address Redundancy Protocol 167CAS column address strobe 168CAS compare and swap 169CAS computer algebra system 170CASE computer aided software engineering 171CAU control access unit 172CAV constant angular velocity 173CBC cipher block chaining 174CBR constant bit rate 175CC carbon coby 176CCD charge coupled device 177CCI co-channel interferer 178CD cache disable 179CD compact disc 180CDDA compact disc digital audio 181CDMA code division multiple access 182CDRAM cache dynamic random access memory 183CER canonical encoding rules 184CF compact flash 185CFG context-free grammar 186CFG control-flow graph 187CG control gate 188CGA Color Graphics Adapter 189CGI common gateway interface 190CGN Carrier-Grade NAT 191CHAP Challenge-Handshake Authentication Protocol 192CHS cylinder/head/sector 193CI continuous integration 194CI {common,component} interface 195CIDR Classless Inter-Domain Routing 196CIFS Common Internet File System 197CIL common intermediate language 198CIR carrier-to-interference ratio 199CIS contact image sensor 200CISC complex instruction set {computer,computing} 201CJK Chinese, Japanese, [and] Korean 202CLF common log format 203CLI command line interface 204CLR common language runtime 205CLTT closed loop thermal throttling 206CLUT color look-up table 207CLV constant linear velocity 208CM configuration management 209CMA concert multithread architecture 210CMI control management interface 211CMI control method interface 212CMOS complementary metal-oxide-semiconductor 213CMP chip multi-processing 214CMS content management system 215CMYK cyan magenta yellow black 216CN {common,canonical} name 217CNC computer numerical control 218CNR carrier-to-noise ratio 219COF current operating frequency 220COFDM coded orthogonal frequency division multiplexing 221COFF common object file format 222COM component object model 223COMA cache-only memory architecture 224CORBA common object request broker architecture 225COW copy-on-write 226CP continuous pilot 227CPB core performance boost 228CPE common phase error 229CPG clock pulse generator 230CPL current privilege level 231CPLD complex programmable logic device 232CPP C preprocessor 233CPS characters per second 234CPT command pass through 235CPU central processing unit 236CR carriage return 237CRC cyclic redundancy check 238CRL carrier recovery loop 239CRLF carriage return line feed 240CRT cathode ray tube 241CS cable select 242CS chip select 243CS code segment 244CS computer science 245CSI channel state information 246CSI common system interface 247CSMA carrier sense multiple access 248CSMA/CA carrier sense multiple access with collision avoidance 249CSMA/CD carrier sense multiple access with collision detection 250CSR control [and] status registers 251CSRG Computer Systems Research Group 252CSS cascading style sheets 253CSV comma-separated values 254CTM close to metal 255CTS clear to send 256CUA common user access 257CUT coordinated universal time 258CV control voltage 259CVS Concurrent Versions System 260DA destination address 261DAA distributed application architecture 262DAB digital audio broadcasting 263DAC digital [to] analog converter 264DAC discretionary access control 265DAD duplicate address detection 266DAO disk at once 267DAP Directory Access Protocol 268DAT digital audio tape 269DAT dynamic acceleration technology 270DB database 271DBA database administrator 272DBA dynamic bandwidth allocation 273DBB data bus buffer 274DBC design by contract 275DBL dynamic buffer limiting 276DBMS database management system 277DBS database server 278DC direct current 279DCC Direct Client-to-Client 280DCC direct cable connect 281DCD data carrier detect 282DCE data control equipment 283DCE distributed computing environment 284DCOM distributed component object model 285DCOP Desktop COmmunication Protocol 286DCS data collection systems 287DCT discrete cosine transform 288DCU data cache unit 289DDC display data channel 290DDE dynamic data exchange 291DDK device driver kit 292DDL data description language 293DDR double data rate 294DDS direct digital sound 295DDWG Digital Display Working Group 296DE debugging extensions 297DE desktop environment 298DEA data encryption algorithm 299DEK data encryption key 300DEP data execution prevention 301DER distinguished encoding rules 302DES Data Encryption Standard 303DF don't fragment 304DFA deterministic finite automaton 305DFC data flow control 306DFS depth first search 307DFS distributed file system 308DFT diagnostic function test 309DFT discrete Fourier transform 310DGL data generation language 311DH Diffie-Hellman 312DHCP Dynamic Host Configuration Protocol 313DIFS distributed inter-frame space 314DIMM dual inline memory module 315DIRT design in real time 316DL diode logic 317DL discrete logarithm 318DL download 319DLE data link escape 320DLL dynamic link library 321DLP discrete logarithm problem 322DMA direct memory access 323DMI desktop management interface 324DMS document management system 325DMT discrete multitone modulation 326DNARD Digital network appliance reference design 327DND drag and drop 328DNS Domain Name System 329DOE distributed object environment 330DOF data over fibre 331DOM document object model 332DOS denial of service 333DOS disk operating system 334DP DisplayPort 335DPC deferred procedure call 336DPCM differential pulse code modulation 337DPD dead peer detection 338DPI deep packet inspection 339DPI dots per inch 340DPL descriptor privilege level 341DPS Display PostScript 342DPST display power savings technology 343DRAM dynamic random access memory 344DRI direct rendering infrastructure 345DRM digital rights management 346DRRS display refresh rate switching 347DS debug store 348DSA digital signature algorithm 349DSB double-sideband modulation 350DSDT differentiated system descriptor table 351DSL digital subscriber line 352DSL domain specific language 353DSLAM digital subscriber line access multiplexer 354DSN delivery status notification 355DSO dynamic shared object 356DSP digital signal processor 357DSSS direct sequence spread spectrum 358DTD document type definition 359DTE data terminal equipment 360DTE dumb terminal emulator 361DTL diode-transistor logic 362DTS digital thermal sensor 363DUT device under test 364DVB digital video broadcasting 365DVCS distributed version control system 366DVD digital versatile disc 367DVFS dynamic voltage and frequency scaling 368DVI device independent 369DVI Digital Visual Interface 370DVR digital video recorder 371E-XER extended XML encoding rules 372EABI embedded-application binary interface 373EAP Extensible Authentication Protocol 374EBCDIC Extended Binary Coded Decimal Interchange Code 375EBR extended boot record 376EC elliptical curve 377ECC error correction code 378ECDL elliptical curve discrete logarithm 379ECDSA elliptical curve digital signature algorithm 380ECL emitter-coupled logic 381ECN explicit congestion notification 382ECP enhanced capability port 383ECS enhanced chip set 384ECS extended configuration space 385EDAT enhanced dynamic acceleration technology 386EDGE explicit data graph execution 387EDID extended display identification data 388EDO extended data out 389EDS electronical data sheet 390EEPROM electrically erasable programmable read only memory 391EFI extensible firmware interface 392EFL emitter follower logic 393EFM eight to fourteen modulation 394EGA Enhanced Graphics Adapter 395EGP exterior gateway protocol 396EH extension header 397EIDE enhanced IDE 398EISA extended industry standard architecture 399ELF executable and linking format 400ELS entry level system 401EMI electro-magnetic interference 402EMP electro-magnetic pulse 403EMR electro-magnetic radiation 404EOF end of file 405EOI end of interrupt 406EOL end of line 407EOT end of transmission 408EPIC explicitly parallel instruction computing 409EPP enhanced parallel port 410EPRML extended partial response, maximum likelihood 411EPROM erasable programmable read only memory 412ERD emergency recovery disk 413ERD entity relationship diagram 414ERE extended regular expression 415ESDRAM enhanced synchronous dynamic random access memory 416ESS electronic switching system 417ESS extended service set 418ESSID extended service set identifier 419EST enhanced speedstep 420ETL extract, transform, load 421EU execution unit 422EULA end user license agreement 423FAT file allocation table 424FBRAM frame buffer random access memory 425FCL fiber channel loop 426FCS frame check sequence 427FDC floppy disk controller 428FDD floppy disk drive 429FDDI fiber distributed data interface 430FDE full disk encryption 431FEA finite element analysis 432FEC forward error correction 433FET field-effect transistor 434FF form feed 435FFH functional fixed hardware 436FFI foreign function interface 437FFM focus follows mouse 438FFS Fast File System 439FFS find first set 440FFT fast Fourier transform 441FG floating gate 442FHSS frequency hop spread spectrum 443FID frequency identifier 444FIFO first in, first out 445FILO first in, last out 446FIR fast infrared 447FLOPS floating [point] operations per second 448FLOSS free/libre/open source software 449FM frequency modulation 450FMR false match rate 451FOSS free/open source software 452FPGA field programmable gate array 453FPM fast page mode 454FPR floating point register 455FPU floating point unit 456FQDN fully qualified domain name 457FRR false rejection rate 458FRU field replaceable unit 459FS file system 460FSB front side bus 461FSCK file system check 462FSF Free Software Foundation 463FSK frequency shift keying 464FSM finite-state machine 465FTA fault tree analysis 466FTL flash translation layer 467FTP File Transfer Protocol 468FTPS File Transfer Protocol Secure 469FUS fast user switching 470FWH firmware hub 471FWS folding white space 472GAL generic array logic 473GAS generic address structure 474GC garbage collector 475GCR group-coded recording 476GDT global descriptor table 477GEM graphics environment manager 478GEM graphics execution manager 479GENA general event notification architecture 480GHC Glasgow Haskell compiler 481GID group identifier 482GIF graphics interchange format 483GMCH graphics and memory controller hub 484GNU GNU's Not Unix 485GOP graphics output protocol 486GOT global offset table 487GPE general purpose event 488GPF general protection fault 489GPG GNU Privacy Guard 490GPL [GNU] General Public License 491GPR general purpose register 492GPS generalized processor sharing 493GPT GUID partition table 494GPU graphics processing unit 495GR golden ratio 496GRE generic routing encapsulation 497GSI global system interrupt 498GUI graphical user interface 499GUID globally unique identifier 500HA high availability 501HAL hardware abstraction layer 502HAT hashed array tree 503HBA host bus adapter 504HCF halt and catch fire 505HCI host controller interface 506HCI human-computer interaction 507HCL hardware compatibility list 508HDCP High-bandwidth Digital Content Protection 509HDD hard disk drive 510HDL hardware description language 511HDMI High-Definition Multimedia Interface 512HDTV high-definition television 513HF high frequency 514HFM highest frequency mode 515HID human interface device 516HLL high-level language 517HMA high memory area 518HMI human-machine interface 519HOOD hierarchical object oriented design 520HP Hewlett-Packard 521HPC high performance computing 522HPET high precision event timer 523HT hyper-threading 524HTC hardware thermal control 525HTCC high temperature co-fired ceramic 526HTML HyperText Markup Language 527HTT hyper-threading technology 528HTTP Hypertext Transfer Protocol 529HTTPS Hypertext Transfer Protocol Secure 530HVM hardware virtual machine 531HZ Hertz 532I2O intelligent input/output 533IA information assurance 534IANA Internet Assigned Numbers Authority 535IBC iterated block cipher 536IBM International Business Machines 537IBS instruction based sampling 538IBSS independent basic service set 539IC integrated circuit 540ICA independent computer architecture 541ICB Internet Citizen's Band 542ICE in-circuit emulator 543ICE internal compiler error 544ICH I/O controller hub 545ICMP Internet Control Message Protocol 546ICT information and communications technology 547ICW initialization command word 548IDA Intel dynamic acceleration 549IDCMP Intuition direct communication message port 550IDE integrated development environment 551IDE integrated drive electronics 552IDPS intrusion detection [and] prevention system 553IDRP inter-domain routing protocol 554IDS intrusion detection system 555IDT interrupt descriptor table 556IE Internet Explorer 557IEC International Electrotechnical Commission 558IEEE Institute of Electrical and Electronics Engineers 559IESG Internet Engineering Steering Group 560IETF Internet Engineering Task Force 561IF intermediate frequency 562IFCM isochronous flow control mode 563IFF Interchange File Format 564IGD Internet gateway device 565IGMP Internet Group Management Protocol 566IGP interior gateway protocol 567IHV independent hardware vendor 568IKE Internet key exchange 569ILM internal loopback mode 570ILOM integrated lights-out management 571ILP instruction level parallelism 572IM instant messaging 573IMAP Internet Message Access Protocol 574IMC integrated memory controller 575IMCR interrupt mode configuration register 576IMR interrupt mask register 577IMS information management system 578INCITS InterNational Committee for Information Technology Standards 579IO input/output 580IOCTL input/output control 581IOMMU input/output memory management unit 582IOT Internet of Things 583IP Internet Protocol 584IP intellectual property 585IPC interprocess communication 586IPE integrated programming environment 587IPI interprocessor interrupt 588IPNG Internet Protocol, Next Generation 589IPS in-plane switching 590IPS intrusion prevention system 591IPSEC Internet Protocol Security 592IRC Internet Relay Chat 593IRDA infrared data association 594IRQ interrupt request 595IRQL interrupt request level 596IRR interrupt request register 597IRTF Internet Research Task Force 598IS information system 599ISA industry standard architecture 600ISA instruction set architecture 601ISDN integrated services digital network 602ISI inter-symbol interference 603ISM industrial, scientific, [and] medical 604ISN initial serial number 605ISO International Standards Organization 606ISOC Internet Society 607ISP Internet service provider 608ISR in-service register 609ISR interrupt service routine 610IST interrupt stack table 611ISV independent software vendor 612IT information technology 613ITB Intel Turbo Boost 614IV initialization vector 615IVT interrupt vector table 616JBOD just a bunch of disks 617JFET junction [gate] field-effect transistor 618JIT just in time 619JPEG Joint Photographic Experts Group 620JRE Java Runtime Environment 621JTAG joint test action group 622KB keyboard 623KB kilobyte 624KBD keyboard 625KBD kilobaud 626KLOC thousand lines of code 627KMS kernel-mode setting 628KPI kernel programming interface 629KVA kernel virtual address 630KVM kernel virtual machine 631KVM kernel virtual memory 632KVM keyboard, video, [and] mouse 633LAMP Linux Apache MySQL {Perl,PHP,Python} 634LAN local area network 635LAPIC local advanced programmable interrupt controller 636LAR load access rights 637LBA logical block addressing 638LBS location-based service 639LCD liquid crystal display 640LCP link control protocol 641LDA local delivery agent 642LDAP Lightweight Directory Access Protocol 643LDR light-dependent resistor 644LDT local descriptor table 645LE logical extent 646LED light emitting diode 647LER label edge router 648LF line feed 649LF low frequency 650LFM lowest frequency mode 651LFN long file names 652LFO low-frequency oscillation 653LFS log-structured file system 654LFU least frequently used 655LHP loop heat pipe 656LIFO last in, first out 657LILO LInux LOader 658LILO last in, last out 659LINT local interrupt 660LIR local Internet registry 661LKM {Linux,loadable} kernel module 662LKML Linux kernel mailing list 663LL load linked 664LL/SC load linked/store conditional 665LLC logical link control 666LLDP link layer discovery protocol 667LLF low level format 668LLMNR link-local multicast name resolution 669LLVM Low Level Virtual Machine 670LM long mode 671LMM link management mode 672LNO loop nest optimization 673LOC lines of code 674LOM lights-out management 675LPC low pin count 676LPS local positioning system 677LRC longitudinal redundancy check 678LRM left-to-right mark 679LRO left-to-right override 680LRU least recently used 681LSB Linux standards base 682LSB least significant {bit,byte} 683LSI large scale integration 684LSL load segment limit 685LSN Large Scale NAT 686LSN log sequence number 687LSR label switch router 688LTCC low temperature co-fired ceramic 689LTO link time optimization 690LTR left to right 691LTR load task register 692LTR letter(-sized paper) 693LUA Lua Uppercase Accident 694LUN logical unit number 695LV logical volume 696LVM logical volume management 697LVT local vector table 698LWP light-weight process 699LZW Lempel Ziv Welch 700MAC mandatory access control 701MAC medium access control 702MAC message authentication {check,code} 703MADT multiple APIC descriptor table 704MB megabyte 705MBA multi-boot agent 706MBR master boot record 707MBS megabits per second 708MC memory controller 709MCA machine check architecture 710MCA MicroChannel architecture 711MCC multiversion concurrency control 712MCE machine check exception 713MCGA Multi-Color Graphics Array 714MCH memory controller hub 715MCM multi-chip module 716MCQ memory controlled queue 717MD machine-dependent 718MDA mail delivery agent 719MDA Monochrome Display Adapter 720MDRAM multibank dynamic random access memory 721MESI modified, exclusive, shared, invalid 722MFC merge from current 723MFC Microsoft Foundation Classes 724MFM modified frequency modulation 725MI machine-independent 726MIB management information base 727MIC message integrity {check,code} 728MID mobile Internet device 729MIDI musical instrument digital interface 730MIF management information format 731MIM man in the middle 732MIMD multiple instruction, multiple data 733MIME Multipurpose Internet Mail Extensions 734MIMO multiple input multiple output 735MIPS million instructions per second 736MISD multiple instruction, single data 737MIT Massachusetts Institute of Technology 738MITM man in the middle 739ML machine language 740ML machine learning 741ML mailing list 742ML markup language 743ML maximum likelihood 744MLC multi-level cell 745MLHP micro loop heat pipe 746MMIC monolithic microwave integrated circuit 747MMIO memory mapped input/output 748MMORPG massive multiplayer online role playing game 749MMU memory management unit 750MMX matrix math extension 751MMX multimedia extension 752MMX multiple math extension 753MO magneto-optical 754MOESI modified, owned, exclusive, shared, invalid 755MOF maximum operating frequency 756MOSFET metal-oxide-semiconductor field-effect transistor 757MOSI modified, owned, shared, invalid 758MP multi-platform 759MP multiplayer 760MP {multiprocessing,multiprocessor} 761MPEG moving picture experts group 762MPI message passing interface 763MPLS Multiprotocol Label Switching 764MPP massively parallel processor 765MPS memory pool system 766MPS multiprocessor specification 767MR modem ready 768MRU most recently used 769MS Microsoft 770MSB most significant {bit,byte} 771MSE mean square error 772MSF minutes seconds frames 773MSI message signaled interrupt 774MSI modified, shared, invalid 775MSR machine state register 776MSS maximum segment size 777MT machine translation 778MTA mail transfer agent 779MTBF mean time between failures 780MTP media transfer protocol 781MTRR memory type range register 782MTTF mean time to failure 783MTU maximum transmission unit 784MUA mail user agent 785MUD multi-user domain 786MVCC multiversion concurrency control 787MWE module width encoding 788MX mail exchange 789NACK negative acknowledgement 790NAN not a number 791NAPT Network Address Port Translation 792NAS network attached storage 793NAT network address translation 794NAV network allocation vector 795NC numerical control 796NCO numerically-controlled oscillator 797NCP Network Control Protocol 798NCQ native command queuing 799ND neighbor discovery 800NDFA nondeterministic finite automaton 801NE numeric error 802NFA nondeterministic finite automaton 803NFS network file system 804NIA next instruction address 805NIC network information center 806NIC network interface card 807NIDS network intrusion detection system 808NIP network interface protocol 809NIPS network intrusion prevention system 810NIS network information service 811NLS native language support 812NMI non-maskable interrupt 813NNTP Network News Transfer Protocol 814NOC network operations center 815NOP no operation 816NOS network operating system 817NP nondeterministic polynomial time 818NRZ non-return to zero 819NSA National Security Agency 820NTM non-deterministic Turing machine 821NTP Network Time Protocol 822NUMA non-uniform memory access 823NVRAM non-volatile random access memory 824NW not write-through 825NX no execute 826OAEP optimal asymmetric encryption padding 827OBO off by one 828OBOE off by one error 829OCL object constraint language 830OCR optical character recognition 831ODCM on-demand clock modulation 832ODT on-die termination 833OEM original equipment manufacturer 834OFDM orthogonal frequency division multiplexing 835OFET organic field-effect transistor 836OLAP online analytical processing 837OLE object linking and embedding 838OLTP online transaction processing 839ONFI open nand flash interface 840OO OpenOffice 841OO object oriented 842OOB out of band 843OOE out of order execution 844OOM out of memory 845OOO OpenOffice.org 846OOP object oriented programming 847OOPS object oriented programming systems 848OOSE object oriented software engineering 849OPM operations per minute 850OPS operations per second 851OQL Object Query Language 852ORB object request broker 853ORM object-relational mapping 854OS operating system 855OSD open source definition 856OSF open software foundation 857OSI Open Source Initiative 858OSI open systems interconnection 859OSPF open shortest path first 860OSPM OS power management 861OSS open sound system 862OSS open source software 863OSVW operating system visible workarounds 864OTP one time password 865OTP open telecom platform 866OU organizational unit 867OUI organizationally unique identifier 868OWL Web Ontology Language 869P2P PCI to PCI 870P2P peer to peer 871PA phase accumulator 872PA physical address 873PAC phase-amplitude converter 874PAE physical address extension 875PAL phase alternating line 876PAL programmable array logic 877PAM pluggable authentication modules 878PAM pulse amplitude modulation 879PAP password authentication protocol 880PAT page attribute table 881PAT port address translation 882PATA parallel ATA 883PAX portable archive exchange 884PBE pending break encoding 885PBE programming by example 886PC personal computer 887PC program counter 888PCB printed circuit board 889PCC Portable C Compiler 890PCD page-level cache disable 891PCE performance-monitor counter enable 892PCI peripheral component interconnect 893PCM phase change memory 894PCM pulse code modulation 895PCMCIA Personal Computer Memory Card International Association 896PCP Port Control Protocol 897PD public domain 898PDA personal digital assistant 899PDA pushdown automaton 900PDAG propositional directed acyclic graph 901PDB power distribution board 902PDF portable document format 903PDM pulse-duration modulation 904PDN pull-down network 905PDP page {descriptor,directory} page 906PDS product data sheet 907PDU protocol data unit 908PE protection enable 909PECI platform environment control interface 910PEP protocol extension protocol 911PER packed encoding rules 912PFS perfect forward secrecy 913PGAS partitioned global address space 914PGE page global enable 915PGP Pretty Good Privacy 916PHB PCI host bridge 917PHP PHP: Hypertext Preprocessor 918PIC position independent code 919PIC programmable interrupt controller 920PICNIC problem in chair, not in computer 921PID process id 922PIE position independent executable 923PIM personal information manager 924PIM platform-independent model 925PIO programmed input/output 926PIPT physically indexed, physically tagged 927PIQ prefetch input queue 928PIT programmable interrupt timer 929PIV personal identity verification 930PKCS public-key cryptography standards 931PKI public key infrastructure 932PLC programmable logic controller 933PLD programmable logic device 934PLL phase locked loop 935PLRU pseudo LRU 936PLTM package level thermal management 937PM power management 938PM {phase,pulse} modulation 939PME power management event 940PMI platform management interrupt 941PMIO port-mapped input/output 942PMT photo-multiplier tube 943PMU power management unit 944PNG portable network graphics 945PNP plug and play 946POE power over ethernet 947POF probability of failure 948POP Post Office Protocol 949POP power on password 950POSIX Portable Operating System Interface [for Unix] 951POST power on self test 952POTS plain old telephone system 953PP pair programming 954PPB PCI [to] PCI bridge 955PPC PowerPC 956PPI pixels per inch 957PPM pages per minute 958PPP Point-to-Point Protocol 959PPPOA Point-to-Point Protocol over ATM 960PPPOE Point-to-Point Protocol over Ethernet 961PPU physics processing unit 962PRBS pseudo-random bit sequence 963PRML partial response, maximum likelihood 964PRN pseudo random {noise,number} 965PRNG pseudo random number generator 966PROM programmable read only memory 967PSD power spectral density 968PSE page size extensions 969PSK phase shift keying 970PSK pre-shared key 971PSTN public switched telephone network 972PSW program status word 973PTE page table entry 974PTLA pseudo top level aggregator 975PTP page table page 976PTV perceived target value 977PU processing unit 978PUN physical unit number 979PV physical volume 980PVG physical volume group 981PVI protected-mode virtual interrupt 982PWM pulse width modulation 983PXE preboot execution environment 984QA quality assurance 985QAM quadrature amplitude modulation 986QAM quality assurance management 987QBE query by example 988QC quality control 989QDI quasi delay insensitive 990QOS quality of service 991R/O read only 992R/W read/write 993RA receiver address 994RA remote assistance 995RA resource affinity 996RA router advertisement 997RAD rapid application development 998RAID redundant array of {independent,inexpensive} disks 999RAM random access memory 1000RAS reliability, availability and serviceability 1001RAS remote access service 1002RAS restartable atomic sequence 1003RAS row address strobe 1004RBF radial basis function 1005RBT red-black tree 1006RC release candidate 1007RC remote control 1008RCS Revision Control System 1009RCS revision control system 1010RCU read, copy, update 1011RDB Rigid Disk Block 1012RDBMS relational database management system 1013RDF Resource Description Framework 1014RDM relational data model 1015RDMA remote direct memory access 1016RE regular expression 1017REST representational state transfer 1018RF radio frequency 1019RFI radio frequency interference 1020RFO request for ownership 1021RGB red green blue 1022RGBA red green blue alpha 1023RH read hit 1024RHEL Red Hat Enterprise Linux 1025RHL Red Hat Linux 1026RIB routing information base 1027RIFF Resource Interchange File Format 1028RIP Routing Information Protocol 1029RIR regional Internet registry 1030RISC reduced instruction set {computer,computing} 1031RKM ROM Kernel Manual 1032RLE run length encoding 1033RLL run length limited 1034RLO right-to-left override 1035RM read miss 1036RMI remote method invocation 1037RMPM rapid memory power management 1038RMS root mean square 1039RMW read, modify, write 1040RNG random number generator 1041ROM read only memory 1042RPC remote procedure call 1043RPL requested privilege level 1044RPM revolutions per minute 1045RPN reverse Polish notation 1046RR random replacement 1047RR round robin 1048RS relay station 1049RSA Rivest, Shamir, [and] Adleman 1050RSIP Realm Specific IP 1051RSS really simple syndication 1052RSS residual sum of squares 1053RT real time 1054RTC real time clock 1055RTC real time computing 1056RTF rich text format 1057RTL register transfer language 1058RTL resistor-transistor logic 1059RTL right to left 1060RTOS real time operating system 1061RTS request to send 1062RTT round trip time 1063RUP rational unified process 1064RWM read-write memory 1065RX {receive,receiver} 1066S/PDIF Sony/Philips Digital Interface Format 1067SA security advisory 1068SA security association 1069SA source address 1070SA structured analysis 1071SAAS software as a service 1072SACD super audio compact disc 1073SAD security association database 1074SAL system abstraction layer 1075SAM serial access memory 1076SAM sum addressed memory 1077SAN storage area network 1078SAPIC streamlined advanced programmable interrupt controller 1079SASD structured analysis, structured design 1080SASI Shugart Associates System Interface 1081SASL simple authentication [and] security layer 1082SATA serial advanced technology attachment 1083SB sound blaster 1084SBU standard build unit 1085SC store conditional 1086SCA source code analyzer 1087SCADA supervisory control and data acquisition 1088SCC single chip cloud 1089SCC source code control 1090SCCS Source Code Control System 1091SCI scalable coherent interface 1092SCI system control interrupt 1093SCM software configuration management 1094SCM source code management 1095SCM storage-class memory 1096SCP secure copy 1097SCSI Small Computer System Interface 1098SCTP Stream Control Transmission Protocol 1099SDI symbol deinterleave 1100SDK software development kit 1101SDL Simple Declarative Language 1102SDL Simple Direct-media Layer 1103SDRAM synchronous dynamic random access memory 1104SDT syntax-directed translation 1105SEGV segmentation violation 1106SEO search engine optimization 1107SFC sequential function chart 1108SFI simple firmware interface 1109SFI software fault isolation 1110SFTP SSH File Transfer Protocol 1111SFTP Serial File Transfer Protocol 1112SFTP Simple File Transfer Protocol 1113SGRAM synchronous graphics random access memory 1114SIFS short inter-frame space 1115SIMD single instruction, multiple data 1116SIMM single inline memory module 1117SIP Session Initiation Protocol 1118SIR signal-to-interference ratio 1119SIR slow infrared 1120SISD single instruction, single data 1121SLC single-level cell 1122SLDRAM synchronous-link dynamic random access memory 1123SLED single large expensive disk 1124SLI scalable link interface 1125SLI scan-line interleave 1126SLOC source lines of code 1127SLRU segmented LRU 1128SMA smart memory access 1129SMAF system management action field 1130SMART self-monitoring analysis and reporting technology 1131SMBIOS System Management BIOS 1132SMC system management controller 1133SMI structure of management information 1134SMI system management interrupt 1135SMM system management mode 1136SMP symmetric multiprocessing 1137SMT simultaneous multithreading 1138SMTP Simple Mail Transfer Protocol 1139SMU system management unit 1140SNMP Simple Network Management Protocol 1141SNR signal-to-noise ratio 1142SOA service oriented architecture 1143SOAP Simple Object Access Protocol 1144SOC system on chip 1145SOF start of frame 1146SOH start of header 1147SOHO small office/home office 1148SOL serial over LAN 1149SP service pack 1150SP stack pointer 1151SPARC scalable processor architecture 1152SPARQL SPARQL Protocol and RDF Query Language 1153SPD security policy database 1154SPD serial presence detect 1155SPDIF Sony/Philips digital interface format 1156SPI serial peripheral interface 1157SPI stateful packet inspection 1158SPMD single process, multiple data 1159SPR special purpose register 1160SPT sectors per track 1161SQA software quality assurance 1162SQL Structured Query Language 1163SRAM static random access memory 1164SRC sample rate conversion 1165SS self-snoop 1166SS stack segment 1167SSB single-sideband modulation 1168SSD solid state drive 1169SSE streaming SIMD extensions 1170SSFDC solid state floppy disc card 1171SSH secure shell 1172SSI server side includes 1173SSID service set identifier 1174SSL secure sockets layer 1175SSP stack smashing protection 1176STC software thermal control 1177STD state transition diagram 1178STP Spanning Tree Protocol 1179STP shielded twisted pair 1180SUS Single Unix Specification 1181SUT system under test 1182SVG scalable vector graphics 1183SVGA Super Video Graphics Array 1184SVM secure virtual machine 1185SVM support vector machine 1186SVR System V Release 1187SWF Shockwave Flash 1188SWIG simplified wrapper [and] interface generator 1189SYR symbol timing recovery 1190TA test assertion 1191TA transmitter address 1192TAI international atomic time 1193TAO track at once 1194TAOCP The Art of Computer Programming 1195TAP Test Anything Protocol 1196TAS test and set 1197TB terabyte 1198TCB trace capture buffer 1199TCB trusted computing base 1200TCC thermal control circuit 1201TCL tool command language 1202TCP Transmission Control Protocol 1203TCQ tagged command queueing 1204TDC time [to] digital converter 1205TDD test driven development 1206TDD time division duplex 1207TDM time division multiplexing 1208TDMA time division multiple access 1209TDOA time difference of arrival 1210TDP thermal design {point,power} 1211TECO Text Editor and Corrector 1212TFT thin film transistor 1213TFTP Trivial File Transfer Protocol 1214TIAS try it and see 1215TIFF tagged image file format 1216TITS try it to see 1217TK temporal key 1218TKIP Temporal Key Integrity Protocol 1219TLA top level aggregator 1220TLB translation lookaside buffer 1221TLD top level domain 1222TLS thread local storage 1223TLS transport layer security 1224TM Turing machine 1225TM thermal monitor 1226TMDS transition minimized differential signaling 1227TMO timeout 1228TOD time of day 1229TOS terms of service 1230TOS trusted operating system 1231TOS type of service 1232TP transaction processing 1233TPI tracks per inch 1234TPM transactions per minute 1235TPM trusted platform module 1236TPR task priority register 1237TPS transactions per second 1238TPS transmission parameters signaling 1239TR task register 1240TR token ring 1241TRL timing recovery loop 1242TRNG true random number generator 1243TS terminal services 1244TS time series 1245TS time stamp 1246TS transport stream 1247TSC time stamp counter 1248TSD time stamp disable 1249TSL test, set, lock 1250TSO time sharing option 1251TSP Time-Stamp Protocol 1252TSP Tunnel Setup Protocol 1253TSP time synchronization protocol 1254TSP traveling salesman problem 1255TSS task state segment 1256TTL time to live 1257TTL transistor-transistor logic 1258TTM translation table maps 1259TTY teletype 1260TUI {terminal,text-based,textual} user interface 1261TX {transmit out,transmitter} 1262TZ time zone 1263UAC user {access,account} control 1264UART universal asynchronous receiver/transmitter 1265UAT user acceptance testing 1266UC uncacheable 1267UCS uniform-cost search 1268UDMA ultra DMA 1269UDO ultra density optical 1270UDP User Datagram Protocol 1271UEFI unified extensible firmware interface 1272UFS Unix File System 1273UGA universal graphics adapter 1274UI unit interval 1275UI user interface 1276UID unique identifier 1277UID user identifier 1278UL upload 1279UMA uniform memory access 1280UMA upper memory area 1281UMB upper memory block 1282UML unified modeling language 1283UMPC ultra-mobile PC 1284UPNP universal plug and play 1285UPS uninterruptible power supply 1286URI uniform resource identifier 1287URL uniform resource locator 1288URN uniform resource name 1289USART universal synchronous/asynchronous receiver/transmitter 1290USB universal serial bus 1291USWC uncacheable speculative write combining 1292UT unit test 1293UTC coordinated universal time 1294UTP unshielded twisted pair 1295UUCP Unix-to-Unix Copy Protocol 1296UUID universally unique identifier 1297UUOC useless use of cat 1298UUT unit under test 1299UX user experience 1300VA vertical alignment 1301VA virtual address 1302VA volt-ampere 1303VAX virtual address extension 1304VB Visual Basic 1305VCA variable-gain amplifier 1306VCC common collector voltage 1307VCF voltage-controlled filter 1308VCM virtual channel memory 1309VCO voltage-controlled oscillator 1310VCS version control system 1311VESA Video Electronics Standards Association 1312VFO variable-frequency oscillator 1313VG volume group 1314VGA Video Graphics Array 1315VHDCI very high density cable interconnect 1316VID voltage level identifier 1317VIPT virtually indexed, physically tagged 1318VIVT virtually indexed, virtually tagged 1319VLAN virtual local area network 1320VLIW very long instruction word 1321VLSI very large scale integration 1322VLSM variable length subnet mask 1323VM virtual {machine,memory} 1324VME virtual mode extension 1325VMX vector multimedia extensions 1326VMX virtual machine extensions 1327VOD video on demand 1328VPN virtual private network 1329VR virtual reality 1330VRAM video random access memory 1331VRM voltage regulator module 1332VRRP Virtual Router Redundancy Protocol 1333W watt 1334W3C World Wide Web Consortium 1335WAN wide area network 1336WAP Wireless Application Protocol 1337WAP wireless access point 1338WDT watchdog timer 1339WEP Wired Equivalent Privacy 1340WFI wait for interrupt 1341WFQ weighted fair queuing 1342WH write hit 1343WIFI wireless fidelity 1344WLAN wireless local area network 1345WM write miss 1346WMI Windows Management Instrumentation 1347WOL Wake-on-LAN 1348WOM Wake-on-Modem 1349WOR Wake-on-Ring 1350WORM write once read many 1351WP WordPerfect 1352WP word processor 1353WP write protect 1354WPA Wi-Fi Protected Access 1355WPA2 Wi-Fi Protected Access II 1356WPS Wi-Fi Protected Setup 1357WRAM window random access memory 1358WS web services 1359WTC write through caching 1360WWAN wireless wide area network 1361WWW world wide web 1362WYSIWYG what you see is what you get 1363XBAR crossbar 1364XDMCP X Display Manager control protocol 1365XER XML encoding rules 1366XGA Extended Graphics Array 1367XIP execute in place 1368XML Extensible Markup Language 1369XOR exclusive or 1370XP extreme programming 1371XSI X/Open System Interface 1372XSL extensible stylesheet language 1373XSS cross site scripting 1374XT extended technology 1375XUL XML user interface language 1376YACC yet another compiler compiler 1377YAWPFAPR you are welcome; please file a problem report 1378YP Yellow Pages 1379YTD year to date 1380ZBR zone bit recording 1381ZFOD zero-filled on demand 1382ZIF zero insertion force 1383ZIFS zero insertion force socket 1384ZMA zone multicast address 1385