acronyms.comp revision 1.131
1$NetBSD: acronyms.comp,v 1.131 2013/01/23 12:35:06 wiz 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 40AM access method 41AM alignment mask 42AM amplitude modulation 43AMI alternate mark inversion 44AMT active management technology 45AN Arabic number 46ANSI American National Standards Institute 47AO analog output 48AOL Alert-on-LAN 49AOS add or subtract 50AP access point 51AP application processor 52API application programming interface 53APIC advanced programmable interrupt controller 54APIPA automatic private IP addressing 55AQM active queue management 56ARAT always running APIC timer 57ARC adaptive replacement cache 58ARM Advanced RISC Machines 59ARP Address Resolution Protocol 60ARPA Advanced Research Projects Agency 61ARQ automatic repeat request 62ARR address range register 63ARU audio response unit 64AS autonomous system 65ASC advanced smart cache 66ASCII American Standard Code for Information Interchange 67ASD agile software development 68ASE advanced software environment 69ASIC application-specific integrated circuit 70ASK amplitude shif keying 71ASLR address space layout randomization 72ASN autonomous system number 73ASPM active state power management 74ASQ automated software quality 75ASR address space register 76AST abstract syntax tree 77AST asynchronous trap 78AT access time 79AT advanced technology 80ATA advanced technology attachment 81ATAPI advanced technology attachment packet interface 82ATC address translation cache 83ATM asynchronous transfer mode 84ATX advanced technology extended 85AV anti virus 86AVL Adelson-Velsky-Landis 87AVX advanced vector extensions 88BA byte align 89BAL basic assembly language 90BAR base address register 91BBS bulletin board system 92BCC blind carbon copy 93BCD binary coded decimal 94BCR byte counte register 95BCS base configuration space 96BD baud 97BDD binary decision diagram 98BDI bit deinterleave 99BDUF big design up front 100BEDO burst extended data output 101BER basic encoding rules 102BER bit error {rate,ratio} 103BFD binary {file,format} descriptor 104BFKL big fscking kernel lock 105BFS breadth-first search 106BFT binary file transfer 107BGA ball grid array 108BGP Border Gateway Protocol 109BIND Berkeley Internet Name Daemon 110BIOS basic input/output system 111BIST built-in self-test 112BIU bus interface unit 113BKDG BIOS and kernel developer's guide 114BLAS basic linear algebra subprograms 115BLC back light control 116BLOB binary large object 117BM bus master 118BMC baseboard management controller 119BMIC bus master interface controller 120BN boundary neutral 121BNF Backus-Naur form 122BO binary output 123BOF beginning of file 124BOM beginning of message 125BOM byte order mark 126BP base pointer 127BP boot processor 128BPB BIOS parameter block 129BPF Berkeley Packet Filter 130BPI bits per inch 131BPM business process modelling 132BPS bits per second 133BPSK binary phase shift keying 134BQS Berkeley quality software 135BRE basic regular expression 136BS binary sequence 137BSD Berkeley Software Distribution 138BSF bit scan forward 139BSOD blue screen of death 140BSP binary space partition 141BSP bootstrap processor 142BSR bit scan reverse 143BSS block started by symbol 144BT BitTorrent 145BT Bluetooth 146BT bit test 147BTC bit test [and] complement 148BTR bit test [and] reset 149BTS bit test [and] set 150BTS bits per second 151BW bandwidth 152BWM block-write mode 153CA certificate authority 154CAD computer-aided design 155CAM computer assisted manufacturing 156CAM conditional access module 157CAM content addressable memory 158CARP Common Address Redundancy Protocol 159CAS column address strobe 160CAS compare and swap 161CAS computer algebra system 162CASE computer aided software engineering 163CAU control access unit 164CAV constant angular velocity 165CBC cipher block chaining 166CBR constant bit rate 167CC carbon coby 168CCD charge coupled device 169CCI co-channel interferer 170CD cache disable 171CD compact disc 172CDDA compact disc digital audio 173CDMA code division multiple access 174CDRAM cache dynamic random access memory 175CER canonical encoding rules 176CF compact flash 177CFG context-free grammar 178CFG control-flow graph 179CG control gate 180CGA color graphics {adapter,array} 181CGI common gateway interface 182CGN Carrier-Grade NAT 183CHAP Challenge-Handshake Authentication Protocol 184CHS cylinder/head/sector 185CI continuous integration 186CI {common,component} interface 187CIDR Classless Inter-Domain Routing 188CIFS Common Internet File System 189CIL common intermediate language 190CIR carrier-to-interference ratio 191CIS contact image sensor 192CJK Chinese, Japanese, [and] Korean 193CLF common log format 194CLI command line interface 195CLR common language runtime 196CLTT closed loop thermal throttling 197CLUT color look-up table 198CLV constant linear velocity 199CM configuration management 200CMA concert multithread architecture 201CMI control management interface 202CMI control method interface 203CMOS complementary metal-oxide-semiconductor 204CMP chip multi-processing 205CMS content management system 206CMYK cyan magenta yellow black 207CN {common,canonical} name 208CNC computer numerical control 209CNR carrier-to-noise ratio 210COF current operating frequency 211COFDM coded orthogonal frequency division multiplexing 212COFF common object file format 213COM component object model 214COMA cache-only memory architecture 215CORBA common object request broker architecture 216COW copy-on-write 217CP continuous pilot 218CPB core performance boost 219CPE common phase error 220CPG clock pulse generator 221CPL current privilege level 222CPLD complex programmable logic device 223CPS characters per second 224CPT command pass through 225CPU central processing unit 226CR carriage return 227CRC cyclic redundancy check 228CRL carrier recovery loop 229CRLF carriage return line feed 230CRT cathode ray tube 231CS cable select 232CS chip select 233CS code segment 234CS computer science 235CSI channel state information 236CSI common system interface 237CSMA carrier sense multiple access 238CSMA/CA carrier sense multiple access with collision avoidance 239CSMA/CD carrier sense multiple access with collision detection 240CSR control [and] status registers 241CSS cascading style sheets 242CSV comma-separated values 243CTM close to metal 244CTS clear to send 245CUA common user access 246CUT coordinated universal time 247CV control voltage 248CVS Concurrent Versions System 249DA destination address 250DAA distributed application architecture 251DAB digital audio broadcasting 252DAC digital [to] analog converter 253DAC discretionary access control 254DAO disk at once 255DAP Directory Access Protocol 256DAT digital audio tape 257DAT dynamic acceleration technology 258DB database 259DBA dynamic bandwidth allocation 260DBB data bus buffer 261DBC design by contract 262DBL dynamic buffer limiting 263DBMS database management system 264DBS database server 265DC direct current 266DCC Direct Client-to-Client 267DCC direct cable connect 268DCD data carrier detect 269DCE data control equipment 270DCE distributed computing environment 271DCOM distributed component object model 272DCOP Desktop COmmunication Protocol 273DCS data collection systems 274DCT discrete cosine transform 275DCU data cache unit 276DDC display data channel 277DDE dynamic data exchange 278DDK device driver kit 279DDL data description language 280DDR double data rate 281DDS direct digital sound 282DDWG digital display working group 283DE debugging extensions 284DE desktop environment 285DEA data encryption algorithm 286DEK data encryption key 287DEP data execution prevention 288DER distinguished encoding rules 289DES Data Encryption Standard 290DF don't fragment 291DFA deterministic finite automaton 292DFC data flow control 293DFS depth first search 294DFS distributed file system 295DFT diagnostic function test 296DFT discrete Fourier transform 297DGL data generation language 298DH Diffie-Hellman 299DHCP Dynamic Host Configuration Protocol 300DIFS distributed inter-frame space 301DIMM dual inline memory module 302DIRT design in real time 303DL diode logic 304DL download 305DLE data link escape 306DLL dynamic link library 307DMA direct memory access 308DMI desktop management interface 309DMS document management system 310DMT discrete multitone modulation 311DNARD Digital network appliance reference design 312DNS Domain Name System 313DOE distributed object environment 314DOF data over fibre 315DOM document object model 316DOS denial of service 317DOS disk operating system 318DPC deferred procedure call 319DPCM differential pulse code modulation 320DPD dead peer detection 321DPI deep packet inspection 322DPI dots per inch 323DPL descriptor privilege level 324DPST display power savings technology 325DRAM dynamic random access memory 326DRI direct rendering infrastructure 327DRM digital rights management 328DRRS display refresh rate switching 329DS debug store 330DSB double-sideband modulation 331DSDT differentiated system descriptor table 332DSL digital subscriber line 333DSL domain specific language 334DSLAM digital subscriber line access multiplexer 335DSN delivery status notification 336DSO dynamic shared object 337DSP digital signal processor 338DSSS direct sequence spread spectrum 339DTD document type definition 340DTE data terminal equipment 341DTE dumb terminal emulator 342DTL diode-transistor logic 343DTS digital thermal sensor 344DUT device under test 345DVB digital video broadcasting 346DVCS distributed version control system 347DVD digital versatile disc 348DVFS dynamic voltage and frequency scaling 349DVI digital visual interface 350DVR digital video recorder 351E-XER extended XML encoding rules 352EABI embedded-application binary interface 353EAP Extensible Authentication Protocol 354EBR extended boot record 355ECC error correction code 356ECL emitter-coupled logic 357ECN explicit congestion notification 358ECP enhanced capability port 359ECS enhanced chip set 360ECS extended configuration space 361EDAT enhanced dynamic acceleration technology 362EDGE explicit data graph execution 363EDID extended display identification data 364EDO extended data out 365EDS electronical data sheet 366EEPROM electrically erasable programmable read only memory 367EFI extensible firmware interface 368EFL emitter follower logic 369EFM eight to fourteen modulation 370EGA enhanced graphics {adapter,array} 371EGP exterior gateway protocol 372EH extension header 373EIDE enchanced IDE 374EISA extended industry standard architecture 375ELF executable and linking format 376ELS entry level system 377EMI electro-magnetic interference 378EMP electro-magnetic pulse 379EMR electro-magnetic radiation 380EOF end of file 381EOI end of interrupt 382EOL end of line 383EOT end of transmission 384EPIC explicitly parallel instruction computing 385EPP enhanced parallel port 386EPRML extended partial response, maximum likelihood 387EPROM erasable programmable read only memory 388ERD emergency recovery disk 389ERE extended regular expression 390ESDRAM enhanced synchronous dynamic random access memory 391ESS electronic switching system 392EST enhanced speedstep 393ETL extract, transform, load 394EU execution unit 395EULA end user license agreement 396FAT file allocation table 397FBRAM frame buffer random access memory 398FCL fiber channel loop 399FCS frame check sequence 400FDC floppy disk controller 401FDD floppy disk drive 402FDDI fiber distributed data interface 403FDE full disk encryption 404FEA finite element analysis 405FEC forward error correction 406FET field-effect transistor 407FFH functional fixed hardware 408FFI foreign function interface 409FFM focus follows mouse 410FFS Fast File System 411FFS find first set 412FFT fast Fourier transform 413FG floating gate 414FHSS frequency hop spread spectrum 415FID frequency identifier 416FIFO first in, first out 417FILO first in, last out 418FIR fast infrared 419FLOPS floating [point] operations per second 420FLOSS free/libre/open source software 421FM frequency modulation 422FMR false match rate 423FOSS free/open source software 424FPGA field programmable gate array 425FPM fast page mode 426FPR floating point register 427FPU floating point unit 428FQDN fully qualified domain name 429FRR false rejection rate 430FRU field replaceable unit 431FS file system 432FSB front side bus 433FSCK file system check 434FSF Free Software Foundation 435FSK frequency shift keying 436FSM finite-state machine 437FTA fault tree analysis 438FTP File Transfer Protocol 439FTPS File Transfer Protocol Secure 440FUS fast user switching 441FWH firmware hub 442FWS folding white space 443GAL generic array logic 444GAS generic address structure 445GC garbage collector 446GCR group-coded recording 447GDT global descriptor table 448GEM graphics environment manager 449GEM graphics execution manager 450GENA general event notification architecture 451GHC Glasgow Haskell compiler 452GID group identifier 453GIF graphics interchange format 454GMCH graphics and memory controller hub 455GNU GNU's Not Unix 456GOT global offset table 457GPE general purpose event 458GPF general protection fault 459GPG GNU Privacy Guard 460GPL [GNU] General Public License 461GPR general purpose register 462GPS generalized processor sharing 463GPT GUID partition table 464GPU graphics processing unit 465GR golden ratio 466GRE generic routing encapsulation 467GSI global system interrupt 468GUI graphical user interface 469GUID globally unique identifier 470HA high availability 471HAL hardware abstraction layer 472HAT hashed array tree 473HBA host bus adapter 474HCF halt and catch fire 475HCI host controller interface 476HCI human-computer interaction 477HCL hardware compatibility list 478HDCP high-bandwidth digital content protection 479HDD hard disk drive 480HDL hardware description language 481HDTV high-definition television 482HF high frequency 483HFM highest frequency mode 484HID human interface device 485HLL high-level language 486HMA high memory area 487HMI human-machine interface 488HOOD hierarchical object oriented design 489HP Hewlett-Packard 490HPC high performance computing 491HPET high precision event timer 492HT hyper-threading 493HTC hardware thermal control 494HTCC high temperature co-fired ceramic 495HTML HyperText Markup Language 496HTT hyper-threading technology 497HTTP Hypertext Transfer Protocol 498HTTPS Hypertext Transfer Protocol Secure 499HVM hardware virtual machine 500HZ Hertz 501I2O intelligent input/output 502IA information assurance 503IANA Internet Assigned Numbers Authority 504IBC iterated block cipher 505IBM International Business Machines 506IBS instruction based sampling 507IC integrated circuit 508ICA independent computer architecture 509ICB Internet Citizen's Band 510ICE in-circuit emulator 511ICE internal compiler error 512ICH I/O controller hub 513ICMP Internet Control Message Protocol 514ICT information and communications technology 515ICW initialization command word 516IDA Intel dynamic acceleration 517IDE integrated development environment 518IDE integrated drive electronics 519IDPS intrusion detection [and] prevention system 520IDRP inter-domain routing protocol 521IDS intrusion detection system 522IDT interrupt descriptor table 523IE Internet Explorer 524IEC International Electrotechnical Commission 525IEEE Institute of Electrical and Electronics Engineers 526IESG Internet Engineering Steering Group 527IETF Internet Engineering Task Force 528IF intermediate frequency 529IFCM isochronous flow control mode 530IGD Internet gateway device 531IGMP Internet Group Management Protocol 532IGP interior gateway protocol 533IHV independent hardware vendor 534IKE Internet key exchange 535ILM internal loopback mode 536ILP instruction level parallelism 537IM instant messaging 538IMAP Internet Message Access Protocol 539IMC integrated memory controller 540IMCR interrupt mode configuration register 541IMR interrupt mask register 542IMS information management system 543INCITS InterNational Committee for Information Technology Standards 544IO input/output 545IOCTL input/output control 546IOMMU input/output memory management unit 547IP Internet Protocol 548IP intellectual property 549IPC interprocess communication 550IPE integrated programming environment 551IPI interprocessor interrupt 552IPNG Internet Protocol, Next Generation 553IPS in-plane switching 554IPS intrusion prevention system 555IPSEC Internet Protocol Security 556IRC Internet Relay Chat 557IRDA infrared data association 558IRQ interrupt request 559IRQL interrupt request level 560IRR interrupt request register 561IRTF Internet Research Task Force 562IS information system 563ISA industry standard architecture 564ISA instruction set architecture 565ISDN integrated services digital network 566ISI inter-symbol interference 567ISM industrial, scientific, [and] medical 568ISN initial serial number 569ISO International Standards Organization 570ISOC Internet Society 571ISP Internet service provider 572ISR in-service register 573ISR interrupt service routine 574IST interrupt stack table 575ISV independent software vendor 576IT information technology 577ITB Intel Turbo Boost 578IV initialization vector 579IVT interrupt vector table 580JBOD just a bunch of disks 581JFET junction [gate] field-effect transistor 582JIT just in time 583JPEG Joint Photographic Experts Group 584JRE Java Runtime Environment 585JTAG joint test action group 586KB keyboard 587KB kilobyte 588KBD keyboard 589KBD kilobaud 590KLOC thousand lines of code 591KMS kernel-mode setting 592KPI kernel programming interface 593KVA kernel virtual address 594KVM kernel virtual memory 595KVM keyboard, video, [and] mouse 596LAMP Linux Apache MySQL {Perl,PHP,Python} 597LAN local area network 598LAPIC local advanced programmable interrupt controller 599LAR load access rights 600LBA logical block addressing 601LBS location-based service 602LCD liquid crystal display 603LCP link control protocol 604LDA local delivery agent 605LDAP Lightweight Directory Access Protocol 606LDR light-dependent resistor 607LDT local descriptor table 608LE logical extent 609LED light emitting diode 610LER label edge router 611LF line feed 612LF low frequency 613LFM lowest frequency mode 614LFN long file names 615LFO low-frequency oscillation 616LFS log-structured file system 617LFU least frequently used 618LHP loop heat pipe 619LIFO last in, first out 620LILO LInux LOader 621LILO last in, last out 622LINT local interrupt 623LIR local Internet registry 624LKM {Linux,loadable} kernel module 625LKML Linux kernel mailing list 626LL load linked 627LL/SC load linked/store conditional 628LLC logical link control 629LLF low level format 630LLMNR link-local multicast name resolution 631LLVM Low Level Virtual Machine 632LM long mode 633LMM link management mode 634LNO loop nest optimization 635LOC lines of code 636LPC low pin count 637LPS local positioning system 638LRC longitudinal redundancy check 639LRM left-to-right mark 640LRO left-to-right override 641LRU least recently used 642LSB Linux standards base 643LSB least significant {bit,byte} 644LSI large scale integration 645LSL load segment limit 646LSN Large Scale NAT 647LSR label switch router 648LTCC low temperature co-fired ceramic 649LTR left to right 650LTR load task register 651LUN logical unit number 652LV logical volume 653LVM logical volume management 654LVT local vector table 655LWP light-weight process 656LZW Lempel Ziv Welch 657MAC mandatory access control 658MAC medium access control 659MADT multiple APIC descriptor table 660MB megabyte 661MBR master boot record 662MBS megabits per second 663MC memory controller 664MCA machine check architecture 665MCC multiversion concurrency control 666MCE machine check exception 667MCGA multicolor graphics adapter 668MCH memory controller hub 669MCM multi-chip module 670MCQ memory controlled queue 671MD machine-dependent 672MDA mail delivery agent 673MDA monochrome display adapter 674MDRAM multibank dynamic random access memory 675MESI modified, exclusive, shared, invalid 676MFC merge from current 677MFM modified frequency modulation 678MI machine-independent 679MIB management information base 680MID mobile Internet device 681MIDI musical instrument digital interface 682MIF management information format 683MIMD multiple instruction, multiple data 684MIME Multipurpose Internet Mail Extensions 685MIMO multiple input multiple output 686MIPS million instructions per second 687MISD multiple instruction, single data 688MIT Massachusetts Institute of Technology 689ML machine language 690ML machine learning 691ML mailing list 692ML markup language 693ML maximum likelihood 694MLC multi-level cell 695MLHP micro loop heat pipe 696MMIC monolithic microwave integrated circuit 697MMIO memory mapped input/output 698MMU memory management unit 699MMX matrix math extension 700MMX multimedia extension 701MMX multiple math extension 702MO magneto-optical 703MOESI modified, owned, exclusive, shared, invalid 704MOF maximum operating frequency 705MOSFET metal-oxide-semiconductor field-effect transistor 706MOSI modified, owned, shared, invalid 707MP multi-platform 708MP multiplayer 709MP {multiprocessing,multiprocessor} 710MPEG moving picture experts group 711MPI message passing interface 712MPLS Multiprotocol Label Switching 713MPP massively parallel processor 714MPS memory pool system 715MPS multiprocessor specification 716MR modem ready 717MRU most recently used 718MS Microsoft 719MSB most significant {bit,byte} 720MSE mean square error 721MSF minutes seconds frames 722MSI message signaled interrupt 723MSI modified, shared, invalid 724MSR machine state register 725MSS maximum segment size 726MT machine translation 727MTA mail transfer agent 728MTBF mean time between failures 729MTRR memory type range register 730MTTF mean time to failure 731MTU maximum transmission unit 732MUA mail user agent 733MUD multi-user domain 734MVCC multiversion concurrency control 735MWE module width encoding 736MX mail exchange 737NACK negative acknowledgement 738NAN not a number 739NAPT Network Address Port Translation 740NAS network attached storage 741NAT network address translation 742NAV network allocation vector 743NC numerical control 744NCO numerically-controlled oscillator 745NCP Network Control Protocol 746NCQ native command queuing 747ND neighbor discovery 748NE numeric error 749NFA nondeterministic finite automaton 750NFS network file system 751NIA next instruction address 752NIC network interface card 753NIDS network intrusion detection system 754NIP network interface protocol 755NIPS network intrusion prevention system 756NIS network information service 757NLS native language support 758NMI non-maskable interrupt 759NNTP Network News Transfer Protocol 760NOP no operation 761NP nondeterministic polynomial time 762NRZ non-return to zero 763NSA National Security Agency 764NTM non-deterministic Turing machine 765NTP Network Time Protocol 766NUMA non-uniform memory access 767NVRAM non-volatile random access memory 768NW not write-through 769NX no execute 770OAEP optimal asymmetric encryption padding 771OBO off by one 772OBOE off by one error 773OCL object constraint language 774OCR optical character recognition 775ODCM on-demand clock modulation 776ODT on-die termination 777OEM original equipment manufacturer 778OFDM orthogonal frequency division multiplexing 779OFET organic field-effect transistor 780OLE object linking and embedding 781ONFI open nand flash interface 782OO OpenOffice 783OO object oriented 784OOB out of band 785OOE out of order execution 786OOM out of memory 787OOO OpenOffice.org 788OOP object oriented programming 789OOSE object oriented software engineering 790OPM operations per minute 791OPS operations per second 792OQL object query language 793ORM object-relational mapping 794OS operating system 795OSD open source definition 796OSF open software foundation 797OSI Open Source Initiative 798OSI open systems interconnection 799OSPF open shortest path first 800OSPM OS power management 801OSS open sound system 802OSS open source software 803OSVW operating system visible workarounds 804OTP one time password 805OU organizational unit 806OUI organizationally unique identifier 807OWL Web Ontology Language 808P2P PCI to PCI 809P2P peer to peer 810PA phase accumulator 811PA physical address 812PAC phase-amplitude converter 813PAE physical address extension 814PAL phase alternating line 815PAL programmable array logic 816PAM pluggable authentication modules 817PAM pulse amplitude modulation 818PAP password authentication protocol 819PAT page attribute table 820PAT port address translation 821PATA parallel ATA 822PAX portable archive exchange 823PBE pending break encoding 824PBE programming by example 825PC personal computer 826PC program counter 827PCB printed circuit board 828PCC Portable C Compiler 829PCD page-level cache disable 830PCE performance-monitor counter enable 831PCI peripheral component interconnect 832PCM phase change memory 833PCM pulse code modulation 834PCMCIA Personal Computer Memory Card International Association 835PD public domain 836PDA personal digital assistant 837PDA pushdown automaton 838PDAG propositional directed acyclic graph 839PDB power distribution board 840PDF portable document format 841PDM pulse-duration modulation 842PDN pull-down network 843PDP page descriptor page 844PDS product data sheet 845PDU protocol data unit 846PE protection enable 847PECI platform environment control interface 848PEP protocol extension protocol 849PER packed encoding rules 850PFS perfect forward secrecy 851PGAS partitioned global address space 852PGE page global enable 853PGP Pretty Good Privacy 854PHB PCI host bridge 855PHP PHP: Hypertext Preprocessor 856PIC position independent code 857PIC programmable interrupt controller 858PID process id 859PIE position independent executable 860PIM personal information manager 861PIM platform-independent model 862PIO programmed input/output 863PIPT physically indexed, physically tagged 864PIQ prefetch input queue 865PIT programmable interrupt timer 866PIV personal identity verification 867PKCS public-key cryptography standards 868PKI public key infrastructure 869PLC programmable logic controller 870PLD programmable logic device 871PLL phase locked loop 872PLRU pseudo LRU 873PLTM package level thermal management 874PM power management 875PM {phase,pulse} modulation 876PME power management event 877PMI platform management interrupt 878PMIO port-mapped input/output 879PMT photo-multiplier tube 880PMU power management unit 881PNG portable network graphics 882PNP plug and play 883POE power over ethernet 884POF probability of failure 885POP Post Office Protocol 886POP power on password 887POSIX Portable Operating System Interface [for Unix] 888POST power on self test 889POTS plain old telephone system 890PP pair programming 891PPB PCI [to] PCI bridge 892PPC PowerPC 893PPI pixels per inch 894PPM pages per minute 895PPP Point-to-Point Protocol 896PPPOA Point-to-Point Protocol over ATM 897PPPOE Point-to-Point Protocol over Ethernet 898PPU physics processing unit 899PRBS pseudo-random bit sequence 900PRML partial response, maximum likelihood 901PRN pseudo random {noise,number} 902PRNG pseudo random number generator 903PROM programmable read only memory 904PSD power spectral density 905PSE page size extensions 906PSK phase shift keying 907PSK pre-shared key 908PSTN public switched telephone network 909PSW program status word 910PTE page table entry 911PTLA pseudo top level aggregator 912PTP page table page 913PTV perceived target value 914PU processing unit 915PUN physical unit number 916PV physical volume 917PVG physical volume group 918PVI protected-mode virtual interrupt 919PWM pulse width modulation 920PXE preboot execution environment 921QA quality assurance 922QAM quadrature amplitude modulation 923QAM quality assurance management 924QBE query by example 925QC quality control 926QDI quasi delay insensitive 927QOS quality of service 928RA receiver address 929RA remote assistance 930RA resource affinity 931RA router advertisement 932RAD rapid application development 933RAID redundant array of inexpensive disks 934RAM random access memory 935RAS remote access service 936RAS restartable atomic sequence 937RAS row address strobe 938RBF radial basis function 939RBT red-black tree 940RC release candidate 941RC remote control 942RCS Revision Control System 943RCS revision control system 944RCU read, copy, update 945RDF resource description format 946RDM relational data model 947RDMA remote direct memory access 948RE regular expression 949REST representational state transfer 950RF radio frequency 951RFI radio frequency interference 952RFO request for ownership 953RGB red green blue 954RH read hit 955RHL Red Hat Linux 956RIB routing information base 957RIFF Resource Interchange File Format 958RIP Routing Information Protocol 959RIR regional Internet registry 960RISC reduced instruction set computing 961RKM ROM Kernel Manual 962RLE run length encoding 963RLL run length limited 964RLO right-to-left override 965RM read miss 966RMI remote method invocation 967RMPM rapid memory power management 968RMS root mean square 969RMW read, modify, write 970RNG random number generator 971ROM read only memory 972RPC remote procedure call 973RPL requested privilege level 974RPM revolutions per minute 975RR random replacement 976RR round robin 977RS relay station 978RSA Rivest, Shamir, [and] Adleman 979RSIP Realm Specific IP 980RSS really simple syndication 981RSS residual sum of squares 982RT real time 983RTC real time clock 984RTC real time computing 985RTF rich text format 986RTL resistor-transistor logic 987RTOS real time operating system 988RTS request to send 989RTT round time trip 990RUP rational unified process 991RWM read-write memory 992RX {receive,receiver} 993S/PDIF Sony/Philips Digital Interface Format 994SA security advisory 995SA security association 996SA source address 997SA structured analysis 998SAAS software as a service 999SACD super audio compact disc 1000SAD security association database 1001SAL system abstraction layer 1002SAM serial access memory 1003SAM sum addressed memory 1004SAN storage area network 1005SAPIC streamlined advanced programmable interrupt controller 1006SASD structured analysis, structured design 1007SASI Shugart Associates System Interface 1008SASL simple authentication [and] security layer 1009SATA serial advanced technology attachment 1010SB sound blaster 1011SBU standard build unit 1012SC store conditional 1013SCA source code analyzer 1014SCADA supervisory control and data acquisition 1015SCC single chip cloud 1016SCC source code control 1017SCCS Source Code Control System 1018SCI scalable coherent interface 1019SCI system control interrupt 1020SCM software configuration management 1021SCM source code management 1022SCP secure copy 1023SCSI Small Computer System Interface 1024SCTP Stream Control Transmission Protocol 1025SDI symbol deinterleave 1026SDK software development kit 1027SDL Simple Declarative Language 1028SDRAM synchronous dynamic random access memory 1029SDT syntax-directed translation 1030SEGV segmentation violation 1031SEO search engine optimization 1032SFC sequential function chart 1033SFI simple firmware interface 1034SFTP SSH File Transfer Protocol 1035SFTP Serial File Transfer Protocol 1036SFTP Simple File Transfer Protocol 1037SGRAM synchronous graphics random access memory 1038SIFS short inter-frame space 1039SIMD single instruction, multiple data 1040SIMM single inline memory module 1041SIP Session Initiation Protocol 1042SIR signal-to-interference ratio 1043SIR slow infrared 1044SISD single instruction, single data 1045SLC single-level cell 1046SLDRAM synchronous-link dynamic random access memory 1047SLI scalable link interface 1048SLI scan-line interleave 1049SLOC source lines of code 1050SLRU segmented LRU 1051SMA smart memory access 1052SMAF system management action field 1053SMART self-monitoring analysis and reporting technology 1054SMBIOS system management BIOS 1055SMC system management controller 1056SMI structure of management information 1057SMI system management interrupt 1058SMM system management mode 1059SMP symmetric multiprocessing 1060SMT simultaneous multithreading 1061SMTP Simple Mail Transfer Protocol 1062SMU system management unit 1063SNMP Simple Network Management Protocol 1064SNR signal-to-noise ratio 1065SOA service oriented architecture 1066SOAP Simple Object Access Protocol 1067SOC system on chip 1068SOF start of frame 1069SOHO small office/home office 1070SOL serial over LAN 1071SP service pack 1072SP stack pointer 1073SPARC scalable processor architecture 1074SPARQL SPARQL Protocol and RDF Query Language 1075SPD security policy database 1076SPD serial presence detect 1077SPDIF Sony/Philips digital interface format 1078SPI serial peripheral interface 1079SPI stateful packet inspection 1080SPMD single process, multiple data 1081SPR special purpose register 1082SPT sectors per track 1083SQA software quality assurance 1084SQL Structured Query Language 1085SRAM static random access memory 1086SRC sample rate conversion 1087SS self-snoop 1088SS stack segment 1089SSB single-sideband modulation 1090SSD solid state drive 1091SSE streaming SIMD extensions 1092SSFDC solid state floppy disc card 1093SSH secure shell 1094SSI server side includes 1095SSL secure sockets layer 1096SSP stack smashing protection 1097STC software thermal control 1098STD state transition diagram 1099STP Spanning Tree Protocol 1100STP shielded twisted pair 1101SUS Single Unix Specification 1102SUT system under test 1103SVG scalable vector graphics 1104SVGA super video graphics {adapter,array} 1105SVM secure virtual machine 1106SVM support vector machine 1107SVR System V Release 1108SWF Shockwave Flash 1109SWIG simplified wrapper [and] interface generator 1110SYR symbol timing recovery 1111TA test assertion 1112TA transmitter address 1113TAI international atomic time 1114TAO track at once 1115TAOCP The Art of Computer Programming 1116TAP Test Anything Protocol 1117TAS test and set 1118TB terabyte 1119TCB trace capture buffer 1120TCB trusted computing base 1121TCC thermal control circuit 1122TCL tool command language 1123TCP Transmission Control Protocol 1124TCQ tagged command queueing 1125TDC time [to] digital converter 1126TDD test driven development 1127TDD time division duplex 1128TDM time division multiplexing 1129TDMA time division multiple access 1130TDOA time difference of arrival 1131TDP thermal design {point,power} 1132TECO Text Editor and Corrector 1133TFT thin film transistor 1134TFTP Trivial File Transfer Protocol 1135TIAS try it and see 1136TIFF tagged image file format 1137TITS try it to see 1138TK temporal key 1139TLA top level aggregator 1140TLB transition lookaside buffer 1141TLD top level domain 1142TLS thread local storage 1143TLS transport layer security 1144TM Turing machine 1145TM thermal monitor 1146TMDS transition minimized differential signaling 1147TMO timeout 1148TOD time of day 1149TOS terms of service 1150TOS trusted operating system 1151TOS type of service 1152TP transaction processing 1153TPM transactions per minute 1154TPM trusted platform module 1155TPR task priority register 1156TPS transmission parameters signaling 1157TR task register 1158TR token ring 1159TRL timing recovery loop 1160TRNG true random number generator 1161TS terminal services 1162TS time series 1163TS time stamp 1164TS transport stream 1165TSC time stamp counter 1166TSD time stamp disable 1167TSL test, set, lock 1168TSO time sharing option 1169TSP Time-Stamp Protocol 1170TSP Tunnel Setup Protocol 1171TSP time synchronization protocol 1172TSP traveling salesman problem 1173TSS task state segment 1174TTL time to live 1175TTL transistor-transistor logic 1176TTM translation table maps 1177TTY teletype 1178TUI {terminal,text-based,textual} user interface 1179TX {transmit out,transmitter} 1180TZ time zone 1181UAC user {access,account} control 1182UART universal asynchronous receiver/transmitter 1183UAT user acceptance testing 1184UC uncacheable 1185UCS uniform-cost search 1186UDMA ultra DMA 1187UDO ultra density optical 1188UDP User Datagram Protocol 1189UFS Unix File System 1190UI unit interval 1191UI user interface 1192UID unique identifier 1193UID user identifier 1194UL upload 1195UMA uniform memory access 1196UMA upper memory area 1197UMB upper memory block 1198UML unified modeling language 1199UMPC ultra-mobile PC 1200UPNP universal plug and play 1201UPS uninterruptible power supply 1202URI uniform resource identifier 1203URL uniform resource locator 1204URN uniform resource name 1205USART universal synchronous/asynchronous receiver/transmitter 1206USB universal serial bus 1207USWC uncacheable speculative write combining 1208UT unit test 1209UTC coordinated universal time 1210UTP unshielded twisted pair 1211UUCP Unix-to-Unix Copy Protocol 1212UUID universally unique identifier 1213UUOC useless use of cat 1214UUT unit under test 1215UX user experience 1216VA vertical alignment 1217VA virtual address 1218VA volt-ampere 1219VAX virtual address extension 1220VB Visual Basic 1221VCA variable-gain amplifier 1222VCC common collector voltage 1223VCF voltage-controlled filter 1224VCM virtual channel memory 1225VCO voltage-controlled oscillator 1226VCS version control system 1227VESA video electronics standards association 1228VFO variable-frequency oscillator 1229VG volume group 1230VGA video graphics {adapter,array} 1231VHDCI very high density cable interconnect 1232VID voltage level identifier 1233VIPT virtually indexed, physically tagged 1234VIVT virtually indexed, virtually tagged 1235VLAN virtual local area network 1236VLIW very long instruction word 1237VLSI very large scale integration 1238VLSM variable length subnet mask 1239VM virtual {machine,memory} 1240VME virtual mode extension 1241VMX vector multimedia extensions 1242VMX virtual machine extensions 1243VOD video on demand 1244VPN virtual private network 1245VR virtual reality 1246VRAM video random access memory 1247VRM voltage regulator module 1248VRRP Virtual Router Redundancy Protocol 1249W watt 1250W3C World Wide Web Consortium 1251WAN wide area network 1252WAP Wireless Application Protocol 1253WDT watchdog timer 1254WEP Wired Equivalent Privacy 1255WFI wait for interrupt 1256WFQ weighted fair queuing 1257WH write hit 1258WIFI wireless fidelity 1259WLAN wireless local area network 1260WM write miss 1261WMI Windows Management Instrumentation 1262WOL Wake-on-LAN 1263WOM Wake-on-Modem 1264WOR Wake-on-Ring 1265WORM write once read many 1266WP WordPerfect 1267WP word processor 1268WP write protect 1269WPA wi-fi protected access 1270WRAM window random access memory 1271WS web services 1272WTC write through caching 1273WWAN wireless wide area network 1274WWW world wide web 1275WYSIWYG what you see is what you get 1276XBAR crossbar 1277XER XML encoding rules 1278XGA extended graphics {adapter,array} 1279XIP execute in place 1280XML Extensible Markup Language 1281XOR exclusive or 1282XP extreme programming 1283XSL extensible stylesheet language 1284XSS cross site scripting 1285XT extended technology 1286XUL XML user interface language 1287YACC yet another compiler compiler 1288YAWPFAPR you are welcome; please file a problem report 1289YP Yellow Pages 1290YTD year to date 1291ZBR zone bit recording 1292ZFOD zero-filled on demand 1293ZIF zero insertion force 1294ZIFS zero insertion force socket 1295ZMA zone multicast address 1296