acronyms.comp revision 1.133
1$NetBSD: acronyms.comp,v 1.133 2013/04/16 14:03:33 ginsbach 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 44AMQP advanced message queuing protocol 45AMT active management technology 46AN Arabic number 47ANSI American National Standards Institute 48AO analog output 49AOL Alert-on-LAN 50AOS add or subtract 51AP access point 52AP application processor 53API application programming interface 54APIC advanced programmable interrupt controller 55APIPA automatic private IP addressing 56AQM active queue management 57ARAT always running APIC timer 58ARC adaptive replacement cache 59ARM Advanced RISC Machines 60ARP Address Resolution Protocol 61ARPA Advanced Research Projects Agency 62ARQ automatic repeat request 63ARR address range register 64ARU audio response unit 65AS autonomous system 66ASC advanced smart cache 67ASCII American Standard Code for Information Interchange 68ASD agile software development 69ASE advanced software environment 70ASIC application-specific integrated circuit 71ASK amplitude shif keying 72ASLR address space layout randomization 73ASN autonomous system number 74ASPM active state power management 75ASQ automated software quality 76ASR address space register 77AST abstract syntax tree 78AST asynchronous trap 79AT access time 80AT advanced technology 81ATA advanced technology attachment 82ATAPI advanced technology attachment packet interface 83ATC address translation cache 84ATM asynchronous transfer mode 85ATX advanced technology extended 86AV anti virus 87AVL Adelson-Velsky-Landis 88AVX advanced vector extensions 89BA byte align 90BAL basic assembly language 91BAR base address register 92BBS bulletin board system 93BCC blind carbon copy 94BCD binary coded decimal 95BCR byte counte register 96BCS base configuration space 97BD baud 98BDD binary decision diagram 99BDI bit deinterleave 100BDUF big design up front 101BEDO burst extended data output 102BER basic encoding rules 103BER bit error {rate,ratio} 104BFD binary {file,format} descriptor 105BFKL big fscking kernel lock 106BFS breadth-first search 107BFT binary file transfer 108BGA ball grid array 109BGP Border Gateway Protocol 110BIND Berkeley Internet Name Daemon 111BIOS basic input/output system 112BIST built-in self-test 113BIU bus interface unit 114BKDG BIOS and kernel developer's guide 115BLAS basic linear algebra subprograms 116BLC back light control 117BLOB binary large object 118BM bus master 119BMC baseboard management controller 120BMIC bus master interface controller 121BN boundary neutral 122BNF Backus-Naur form 123BO binary output 124BOF beginning of file 125BOM beginning of message 126BOM byte order mark 127BP base pointer 128BP boot processor 129BPB BIOS parameter block 130BPF Berkeley Packet Filter 131BPI bits per inch 132BPM business process modelling 133BPS bits per second 134BPSK binary phase shift keying 135BQS Berkeley quality software 136BRE basic regular expression 137BS binary sequence 138BSD Berkeley Software Distribution 139BSF bit scan forward 140BSOD blue screen of death 141BSP binary space partition 142BSP bootstrap processor 143BSR bit scan reverse 144BSS block started by symbol 145BT BitTorrent 146BT Bluetooth 147BT bit test 148BTC bit test [and] complement 149BTR bit test [and] reset 150BTS bit test [and] set 151BTS bits per second 152BW bandwidth 153BWM block-write mode 154CA certificate authority 155CAD computer-aided design 156CAM computer assisted manufacturing 157CAM conditional access module 158CAM content addressable memory 159CARP Common Address Redundancy Protocol 160CAS column address strobe 161CAS compare and swap 162CAS computer algebra system 163CASE computer aided software engineering 164CAU control access unit 165CAV constant angular velocity 166CBC cipher block chaining 167CBR constant bit rate 168CC carbon coby 169CCD charge coupled device 170CCI co-channel interferer 171CD cache disable 172CD compact disc 173CDDA compact disc digital audio 174CDMA code division multiple access 175CDRAM cache dynamic random access memory 176CER canonical encoding rules 177CF compact flash 178CFG context-free grammar 179CFG control-flow graph 180CG control gate 181CGA color graphics {adapter,array} 182CGI common gateway interface 183CGN Carrier-Grade NAT 184CHAP Challenge-Handshake Authentication Protocol 185CHS cylinder/head/sector 186CI continuous integration 187CI {common,component} interface 188CIDR Classless Inter-Domain Routing 189CIFS Common Internet File System 190CIL common intermediate language 191CIR carrier-to-interference ratio 192CIS contact image sensor 193CJK Chinese, Japanese, [and] Korean 194CLF common log format 195CLI command line interface 196CLR common language runtime 197CLTT closed loop thermal throttling 198CLUT color look-up table 199CLV constant linear velocity 200CM configuration management 201CMA concert multithread architecture 202CMI control management interface 203CMI control method interface 204CMOS complementary metal-oxide-semiconductor 205CMP chip multi-processing 206CMS content management system 207CMYK cyan magenta yellow black 208CN {common,canonical} name 209CNC computer numerical control 210CNR carrier-to-noise ratio 211COF current operating frequency 212COFDM coded orthogonal frequency division multiplexing 213COFF common object file format 214COM component object model 215COMA cache-only memory architecture 216CORBA common object request broker architecture 217COW copy-on-write 218CP continuous pilot 219CPB core performance boost 220CPE common phase error 221CPG clock pulse generator 222CPL current privilege level 223CPLD complex programmable logic device 224CPS characters per second 225CPT command pass through 226CPU central processing unit 227CR carriage return 228CRC cyclic redundancy check 229CRL carrier recovery loop 230CRLF carriage return line feed 231CRT cathode ray tube 232CS cable select 233CS chip select 234CS code segment 235CS computer science 236CSI channel state information 237CSI common system interface 238CSMA carrier sense multiple access 239CSMA/CA carrier sense multiple access with collision avoidance 240CSMA/CD carrier sense multiple access with collision detection 241CSR control [and] status registers 242CSS cascading style sheets 243CSV comma-separated values 244CTM close to metal 245CTS clear to send 246CUA common user access 247CUT coordinated universal time 248CV control voltage 249CVS Concurrent Versions System 250DA destination address 251DAA distributed application architecture 252DAB digital audio broadcasting 253DAC digital [to] analog converter 254DAC discretionary access control 255DAD duplicate address detection 256DAO disk at once 257DAP Directory Access Protocol 258DAT digital audio tape 259DAT dynamic acceleration technology 260DB database 261DBA dynamic bandwidth allocation 262DBB data bus buffer 263DBC design by contract 264DBL dynamic buffer limiting 265DBMS database management system 266DBS database server 267DC direct current 268DCC Direct Client-to-Client 269DCC direct cable connect 270DCD data carrier detect 271DCE data control equipment 272DCE distributed computing environment 273DCOM distributed component object model 274DCOP Desktop COmmunication Protocol 275DCS data collection systems 276DCT discrete cosine transform 277DCU data cache unit 278DDC display data channel 279DDE dynamic data exchange 280DDK device driver kit 281DDL data description language 282DDR double data rate 283DDS direct digital sound 284DDWG digital display working group 285DE debugging extensions 286DE desktop environment 287DEA data encryption algorithm 288DEK data encryption key 289DEP data execution prevention 290DER distinguished encoding rules 291DES Data Encryption Standard 292DF don't fragment 293DFA deterministic finite automaton 294DFC data flow control 295DFS depth first search 296DFS distributed file system 297DFT diagnostic function test 298DFT discrete Fourier transform 299DGL data generation language 300DH Diffie-Hellman 301DHCP Dynamic Host Configuration Protocol 302DIFS distributed inter-frame space 303DIMM dual inline memory module 304DIRT design in real time 305DL diode logic 306DL download 307DLE data link escape 308DLL dynamic link library 309DMA direct memory access 310DMI desktop management interface 311DMS document management system 312DMT discrete multitone modulation 313DNARD Digital network appliance reference design 314DNS Domain Name System 315DOE distributed object environment 316DOF data over fibre 317DOM document object model 318DOS denial of service 319DOS disk operating system 320DPC deferred procedure call 321DPCM differential pulse code modulation 322DPD dead peer detection 323DPI deep packet inspection 324DPI dots per inch 325DPL descriptor privilege level 326DPST display power savings technology 327DRAM dynamic random access memory 328DRI direct rendering infrastructure 329DRM digital rights management 330DRRS display refresh rate switching 331DS debug store 332DSB double-sideband modulation 333DSDT differentiated system descriptor table 334DSL digital subscriber line 335DSL domain specific language 336DSLAM digital subscriber line access multiplexer 337DSN delivery status notification 338DSO dynamic shared object 339DSP digital signal processor 340DSSS direct sequence spread spectrum 341DTD document type definition 342DTE data terminal equipment 343DTE dumb terminal emulator 344DTL diode-transistor logic 345DTS digital thermal sensor 346DUT device under test 347DVB digital video broadcasting 348DVCS distributed version control system 349DVD digital versatile disc 350DVFS dynamic voltage and frequency scaling 351DVI digital visual interface 352DVR digital video recorder 353E-XER extended XML encoding rules 354EABI embedded-application binary interface 355EAP Extensible Authentication Protocol 356EBR extended boot record 357ECC error correction code 358ECL emitter-coupled logic 359ECN explicit congestion notification 360ECP enhanced capability port 361ECS enhanced chip set 362ECS extended configuration space 363EDAT enhanced dynamic acceleration technology 364EDGE explicit data graph execution 365EDID extended display identification data 366EDO extended data out 367EDS electronical data sheet 368EEPROM electrically erasable programmable read only memory 369EFI extensible firmware interface 370EFL emitter follower logic 371EFM eight to fourteen modulation 372EGA enhanced graphics {adapter,array} 373EGP exterior gateway protocol 374EH extension header 375EIDE enchanced IDE 376EISA extended industry standard architecture 377ELF executable and linking format 378ELS entry level system 379EMI electro-magnetic interference 380EMP electro-magnetic pulse 381EMR electro-magnetic radiation 382EOF end of file 383EOI end of interrupt 384EOL end of line 385EOT end of transmission 386EPIC explicitly parallel instruction computing 387EPP enhanced parallel port 388EPRML extended partial response, maximum likelihood 389EPROM erasable programmable read only memory 390ERD emergency recovery disk 391ERE extended regular expression 392ESDRAM enhanced synchronous dynamic random access memory 393ESS electronic switching system 394EST enhanced speedstep 395ETL extract, transform, load 396EU execution unit 397EULA end user license agreement 398FAT file allocation table 399FBRAM frame buffer random access memory 400FCL fiber channel loop 401FCS frame check sequence 402FDC floppy disk controller 403FDD floppy disk drive 404FDDI fiber distributed data interface 405FDE full disk encryption 406FEA finite element analysis 407FEC forward error correction 408FET field-effect transistor 409FFH functional fixed hardware 410FFI foreign function interface 411FFM focus follows mouse 412FFS Fast File System 413FFS find first set 414FFT fast Fourier transform 415FG floating gate 416FHSS frequency hop spread spectrum 417FID frequency identifier 418FIFO first in, first out 419FILO first in, last out 420FIR fast infrared 421FLOPS floating [point] operations per second 422FLOSS free/libre/open source software 423FM frequency modulation 424FMR false match rate 425FOSS free/open source software 426FPGA field programmable gate array 427FPM fast page mode 428FPR floating point register 429FPU floating point unit 430FQDN fully qualified domain name 431FRR false rejection rate 432FRU field replaceable unit 433FS file system 434FSB front side bus 435FSCK file system check 436FSF Free Software Foundation 437FSK frequency shift keying 438FSM finite-state machine 439FTA fault tree analysis 440FTP File Transfer Protocol 441FTPS File Transfer Protocol Secure 442FUS fast user switching 443FWH firmware hub 444FWS folding white space 445GAL generic array logic 446GAS generic address structure 447GC garbage collector 448GCR group-coded recording 449GDT global descriptor table 450GEM graphics environment manager 451GEM graphics execution manager 452GENA general event notification architecture 453GHC Glasgow Haskell compiler 454GID group identifier 455GIF graphics interchange format 456GMCH graphics and memory controller hub 457GNU GNU's Not Unix 458GOT global offset table 459GPE general purpose event 460GPF general protection fault 461GPG GNU Privacy Guard 462GPL [GNU] General Public License 463GPR general purpose register 464GPS generalized processor sharing 465GPT GUID partition table 466GPU graphics processing unit 467GR golden ratio 468GRE generic routing encapsulation 469GSI global system interrupt 470GUI graphical user interface 471GUID globally unique identifier 472HA high availability 473HAL hardware abstraction layer 474HAT hashed array tree 475HBA host bus adapter 476HCF halt and catch fire 477HCI host controller interface 478HCI human-computer interaction 479HCL hardware compatibility list 480HDCP high-bandwidth digital content protection 481HDD hard disk drive 482HDL hardware description language 483HDTV high-definition television 484HF high frequency 485HFM highest frequency mode 486HID human interface device 487HLL high-level language 488HMA high memory area 489HMI human-machine interface 490HOOD hierarchical object oriented design 491HP Hewlett-Packard 492HPC high performance computing 493HPET high precision event timer 494HT hyper-threading 495HTC hardware thermal control 496HTCC high temperature co-fired ceramic 497HTML HyperText Markup Language 498HTT hyper-threading technology 499HTTP Hypertext Transfer Protocol 500HTTPS Hypertext Transfer Protocol Secure 501HVM hardware virtual machine 502HZ Hertz 503I2O intelligent input/output 504IA information assurance 505IANA Internet Assigned Numbers Authority 506IBC iterated block cipher 507IBM International Business Machines 508IBS instruction based sampling 509IC integrated circuit 510ICA independent computer architecture 511ICB Internet Citizen's Band 512ICE in-circuit emulator 513ICE internal compiler error 514ICH I/O controller hub 515ICMP Internet Control Message Protocol 516ICT information and communications technology 517ICW initialization command word 518IDA Intel dynamic acceleration 519IDE integrated development environment 520IDE integrated drive electronics 521IDPS intrusion detection [and] prevention system 522IDRP inter-domain routing protocol 523IDS intrusion detection system 524IDT interrupt descriptor table 525IE Internet Explorer 526IEC International Electrotechnical Commission 527IEEE Institute of Electrical and Electronics Engineers 528IESG Internet Engineering Steering Group 529IETF Internet Engineering Task Force 530IF intermediate frequency 531IFCM isochronous flow control mode 532IGD Internet gateway device 533IGMP Internet Group Management Protocol 534IGP interior gateway protocol 535IHV independent hardware vendor 536IKE Internet key exchange 537ILM internal loopback mode 538ILP instruction level parallelism 539IM instant messaging 540IMAP Internet Message Access Protocol 541IMC integrated memory controller 542IMCR interrupt mode configuration register 543IMR interrupt mask register 544IMS information management system 545INCITS InterNational Committee for Information Technology Standards 546IO input/output 547IOCTL input/output control 548IOMMU input/output memory management unit 549IP Internet Protocol 550IP intellectual property 551IPC interprocess communication 552IPE integrated programming environment 553IPI interprocessor interrupt 554IPNG Internet Protocol, Next Generation 555IPS in-plane switching 556IPS intrusion prevention system 557IPSEC Internet Protocol Security 558IRC Internet Relay Chat 559IRDA infrared data association 560IRQ interrupt request 561IRQL interrupt request level 562IRR interrupt request register 563IRTF Internet Research Task Force 564IS information system 565ISA industry standard architecture 566ISA instruction set architecture 567ISDN integrated services digital network 568ISI inter-symbol interference 569ISM industrial, scientific, [and] medical 570ISN initial serial number 571ISO International Standards Organization 572ISOC Internet Society 573ISP Internet service provider 574ISR in-service register 575ISR interrupt service routine 576IST interrupt stack table 577ISV independent software vendor 578IT information technology 579ITB Intel Turbo Boost 580IV initialization vector 581IVT interrupt vector table 582JBOD just a bunch of disks 583JFET junction [gate] field-effect transistor 584JIT just in time 585JPEG Joint Photographic Experts Group 586JRE Java Runtime Environment 587JTAG joint test action group 588KB keyboard 589KB kilobyte 590KBD keyboard 591KBD kilobaud 592KLOC thousand lines of code 593KMS kernel-mode setting 594KPI kernel programming interface 595KVA kernel virtual address 596KVM kernel virtual memory 597KVM keyboard, video, [and] mouse 598LAMP Linux Apache MySQL {Perl,PHP,Python} 599LAN local area network 600LAPIC local advanced programmable interrupt controller 601LAR load access rights 602LBA logical block addressing 603LBS location-based service 604LCD liquid crystal display 605LCP link control protocol 606LDA local delivery agent 607LDAP Lightweight Directory Access Protocol 608LDR light-dependent resistor 609LDT local descriptor table 610LE logical extent 611LED light emitting diode 612LER label edge router 613LF line feed 614LF low frequency 615LFM lowest frequency mode 616LFN long file names 617LFO low-frequency oscillation 618LFS log-structured file system 619LFU least frequently used 620LHP loop heat pipe 621LIFO last in, first out 622LILO LInux LOader 623LILO last in, last out 624LINT local interrupt 625LIR local Internet registry 626LKM {Linux,loadable} kernel module 627LKML Linux kernel mailing list 628LL load linked 629LL/SC load linked/store conditional 630LLC logical link control 631LLF low level format 632LLMNR link-local multicast name resolution 633LLVM Low Level Virtual Machine 634LM long mode 635LMM link management mode 636LNO loop nest optimization 637LOC lines of code 638LPC low pin count 639LPS local positioning system 640LRC longitudinal redundancy check 641LRM left-to-right mark 642LRO left-to-right override 643LRU least recently used 644LSB Linux standards base 645LSB least significant {bit,byte} 646LSI large scale integration 647LSL load segment limit 648LSN Large Scale NAT 649LSR label switch router 650LTCC low temperature co-fired ceramic 651LTR left to right 652LTR load task register 653LUN logical unit number 654LV logical volume 655LVM logical volume management 656LVT local vector table 657LWP light-weight process 658LZW Lempel Ziv Welch 659MAC mandatory access control 660MAC medium access control 661MADT multiple APIC descriptor table 662MB megabyte 663MBR master boot record 664MBS megabits per second 665MC memory controller 666MCA machine check architecture 667MCC multiversion concurrency control 668MCE machine check exception 669MCGA multicolor graphics adapter 670MCH memory controller hub 671MCM multi-chip module 672MCQ memory controlled queue 673MD machine-dependent 674MDA mail delivery agent 675MDA monochrome display adapter 676MDRAM multibank dynamic random access memory 677MESI modified, exclusive, shared, invalid 678MFC merge from current 679MFM modified frequency modulation 680MI machine-independent 681MIB management information base 682MID mobile Internet device 683MIDI musical instrument digital interface 684MIF management information format 685MIMD multiple instruction, multiple data 686MIME Multipurpose Internet Mail Extensions 687MIMO multiple input multiple output 688MIPS million instructions per second 689MISD multiple instruction, single data 690MIT Massachusetts Institute of Technology 691ML machine language 692ML machine learning 693ML mailing list 694ML markup language 695ML maximum likelihood 696MLC multi-level cell 697MLHP micro loop heat pipe 698MMIC monolithic microwave integrated circuit 699MMIO memory mapped input/output 700MMU memory management unit 701MMX matrix math extension 702MMX multimedia extension 703MMX multiple math extension 704MO magneto-optical 705MOESI modified, owned, exclusive, shared, invalid 706MOF maximum operating frequency 707MOSFET metal-oxide-semiconductor field-effect transistor 708MOSI modified, owned, shared, invalid 709MP multi-platform 710MP multiplayer 711MP {multiprocessing,multiprocessor} 712MPEG moving picture experts group 713MPI message passing interface 714MPLS Multiprotocol Label Switching 715MPP massively parallel processor 716MPS memory pool system 717MPS multiprocessor specification 718MR modem ready 719MRU most recently used 720MS Microsoft 721MSB most significant {bit,byte} 722MSE mean square error 723MSF minutes seconds frames 724MSI message signaled interrupt 725MSI modified, shared, invalid 726MSR machine state register 727MSS maximum segment size 728MT machine translation 729MTA mail transfer agent 730MTBF mean time between failures 731MTRR memory type range register 732MTTF mean time to failure 733MTU maximum transmission unit 734MUA mail user agent 735MUD multi-user domain 736MVCC multiversion concurrency control 737MWE module width encoding 738MX mail exchange 739NACK negative acknowledgement 740NAN not a number 741NAPT Network Address Port Translation 742NAS network attached storage 743NAT network address translation 744NAV network allocation vector 745NC numerical control 746NCO numerically-controlled oscillator 747NCP Network Control Protocol 748NCQ native command queuing 749ND neighbor discovery 750NE numeric error 751NFA nondeterministic finite automaton 752NFS network file system 753NIA next instruction address 754NIC network interface card 755NIDS network intrusion detection system 756NIP network interface protocol 757NIPS network intrusion prevention system 758NIS network information service 759NLS native language support 760NMI non-maskable interrupt 761NNTP Network News Transfer Protocol 762NOP no operation 763NP nondeterministic polynomial time 764NRZ non-return to zero 765NSA National Security Agency 766NTM non-deterministic Turing machine 767NTP Network Time Protocol 768NUMA non-uniform memory access 769NVRAM non-volatile random access memory 770NW not write-through 771NX no execute 772OAEP optimal asymmetric encryption padding 773OBO off by one 774OBOE off by one error 775OCL object constraint language 776OCR optical character recognition 777ODCM on-demand clock modulation 778ODT on-die termination 779OEM original equipment manufacturer 780OFDM orthogonal frequency division multiplexing 781OFET organic field-effect transistor 782OLE object linking and embedding 783ONFI open nand flash interface 784OO OpenOffice 785OO object oriented 786OOB out of band 787OOE out of order execution 788OOM out of memory 789OOO OpenOffice.org 790OOP object oriented programming 791OOSE object oriented software engineering 792OPM operations per minute 793OPS operations per second 794OQL object query language 795ORM object-relational mapping 796OS operating system 797OSD open source definition 798OSF open software foundation 799OSI Open Source Initiative 800OSI open systems interconnection 801OSPF open shortest path first 802OSPM OS power management 803OSS open sound system 804OSS open source software 805OSVW operating system visible workarounds 806OTP one time password 807OTP open telecom platform 808OU organizational unit 809OUI organizationally unique identifier 810OWL Web Ontology Language 811P2P PCI to PCI 812P2P peer to peer 813PA phase accumulator 814PA physical address 815PAC phase-amplitude converter 816PAE physical address extension 817PAL phase alternating line 818PAL programmable array logic 819PAM pluggable authentication modules 820PAM pulse amplitude modulation 821PAP password authentication protocol 822PAT page attribute table 823PAT port address translation 824PATA parallel ATA 825PAX portable archive exchange 826PBE pending break encoding 827PBE programming by example 828PC personal computer 829PC program counter 830PCB printed circuit board 831PCC Portable C Compiler 832PCD page-level cache disable 833PCE performance-monitor counter enable 834PCI peripheral component interconnect 835PCM phase change memory 836PCM pulse code modulation 837PCMCIA Personal Computer Memory Card International Association 838PD public domain 839PDA personal digital assistant 840PDA pushdown automaton 841PDAG propositional directed acyclic graph 842PDB power distribution board 843PDF portable document format 844PDM pulse-duration modulation 845PDN pull-down network 846PDP page descriptor page 847PDS product data sheet 848PDU protocol data unit 849PE protection enable 850PECI platform environment control interface 851PEP protocol extension protocol 852PER packed encoding rules 853PFS perfect forward secrecy 854PGAS partitioned global address space 855PGE page global enable 856PGP Pretty Good Privacy 857PHB PCI host bridge 858PHP PHP: Hypertext Preprocessor 859PIC position independent code 860PIC programmable interrupt controller 861PID process id 862PIE position independent executable 863PIM personal information manager 864PIM platform-independent model 865PIO programmed input/output 866PIPT physically indexed, physically tagged 867PIQ prefetch input queue 868PIT programmable interrupt timer 869PIV personal identity verification 870PKCS public-key cryptography standards 871PKI public key infrastructure 872PLC programmable logic controller 873PLD programmable logic device 874PLL phase locked loop 875PLRU pseudo LRU 876PLTM package level thermal management 877PM power management 878PM {phase,pulse} modulation 879PME power management event 880PMI platform management interrupt 881PMIO port-mapped input/output 882PMT photo-multiplier tube 883PMU power management unit 884PNG portable network graphics 885PNP plug and play 886POE power over ethernet 887POF probability of failure 888POP Post Office Protocol 889POP power on password 890POSIX Portable Operating System Interface [for Unix] 891POST power on self test 892POTS plain old telephone system 893PP pair programming 894PPB PCI [to] PCI bridge 895PPC PowerPC 896PPI pixels per inch 897PPM pages per minute 898PPP Point-to-Point Protocol 899PPPOA Point-to-Point Protocol over ATM 900PPPOE Point-to-Point Protocol over Ethernet 901PPU physics processing unit 902PRBS pseudo-random bit sequence 903PRML partial response, maximum likelihood 904PRN pseudo random {noise,number} 905PRNG pseudo random number generator 906PROM programmable read only memory 907PSD power spectral density 908PSE page size extensions 909PSK phase shift keying 910PSK pre-shared key 911PSTN public switched telephone network 912PSW program status word 913PTE page table entry 914PTLA pseudo top level aggregator 915PTP page table page 916PTV perceived target value 917PU processing unit 918PUN physical unit number 919PV physical volume 920PVG physical volume group 921PVI protected-mode virtual interrupt 922PWM pulse width modulation 923PXE preboot execution environment 924QA quality assurance 925QAM quadrature amplitude modulation 926QAM quality assurance management 927QBE query by example 928QC quality control 929QDI quasi delay insensitive 930QOS quality of service 931RA receiver address 932RA remote assistance 933RA resource affinity 934RA router advertisement 935RAD rapid application development 936RAID redundant array of inexpensive disks 937RAM random access memory 938RAS remote access service 939RAS restartable atomic sequence 940RAS row address strobe 941RBF radial basis function 942RBT red-black tree 943RC release candidate 944RC remote control 945RCS Revision Control System 946RCS revision control system 947RCU read, copy, update 948RDF resource description format 949RDM relational data model 950RDMA remote direct memory access 951RE regular expression 952REST representational state transfer 953RF radio frequency 954RFI radio frequency interference 955RFO request for ownership 956RGB red green blue 957RH read hit 958RHL Red Hat Linux 959RIB routing information base 960RIFF Resource Interchange File Format 961RIP Routing Information Protocol 962RIR regional Internet registry 963RISC reduced instruction set computing 964RKM ROM Kernel Manual 965RLE run length encoding 966RLL run length limited 967RLO right-to-left override 968RM read miss 969RMI remote method invocation 970RMPM rapid memory power management 971RMS root mean square 972RMW read, modify, write 973RNG random number generator 974ROM read only memory 975RPC remote procedure call 976RPL requested privilege level 977RPM revolutions per minute 978RR random replacement 979RR round robin 980RS relay station 981RSA Rivest, Shamir, [and] Adleman 982RSIP Realm Specific IP 983RSS really simple syndication 984RSS residual sum of squares 985RT real time 986RTC real time clock 987RTC real time computing 988RTF rich text format 989RTL resistor-transistor logic 990RTOS real time operating system 991RTS request to send 992RTT round time trip 993RUP rational unified process 994RWM read-write memory 995RX {receive,receiver} 996S/PDIF Sony/Philips Digital Interface Format 997SA security advisory 998SA security association 999SA source address 1000SA structured analysis 1001SAAS software as a service 1002SACD super audio compact disc 1003SAD security association database 1004SAL system abstraction layer 1005SAM serial access memory 1006SAM sum addressed memory 1007SAN storage area network 1008SAPIC streamlined advanced programmable interrupt controller 1009SASD structured analysis, structured design 1010SASI Shugart Associates System Interface 1011SASL simple authentication [and] security layer 1012SATA serial advanced technology attachment 1013SB sound blaster 1014SBU standard build unit 1015SC store conditional 1016SCA source code analyzer 1017SCADA supervisory control and data acquisition 1018SCC single chip cloud 1019SCC source code control 1020SCCS Source Code Control System 1021SCI scalable coherent interface 1022SCI system control interrupt 1023SCM software configuration management 1024SCM source code management 1025SCP secure copy 1026SCSI Small Computer System Interface 1027SCTP Stream Control Transmission Protocol 1028SDI symbol deinterleave 1029SDK software development kit 1030SDL Simple Declarative Language 1031SDRAM synchronous dynamic random access memory 1032SDT syntax-directed translation 1033SEGV segmentation violation 1034SEO search engine optimization 1035SFC sequential function chart 1036SFI simple firmware interface 1037SFTP SSH File Transfer Protocol 1038SFTP Serial File Transfer Protocol 1039SFTP Simple File Transfer Protocol 1040SGRAM synchronous graphics random access memory 1041SIFS short inter-frame space 1042SIMD single instruction, multiple data 1043SIMM single inline memory module 1044SIP Session Initiation Protocol 1045SIR signal-to-interference ratio 1046SIR slow infrared 1047SISD single instruction, single data 1048SLC single-level cell 1049SLDRAM synchronous-link dynamic random access memory 1050SLI scalable link interface 1051SLI scan-line interleave 1052SLOC source lines of code 1053SLRU segmented LRU 1054SMA smart memory access 1055SMAF system management action field 1056SMART self-monitoring analysis and reporting technology 1057SMBIOS system management BIOS 1058SMC system management controller 1059SMI structure of management information 1060SMI system management interrupt 1061SMM system management mode 1062SMP symmetric multiprocessing 1063SMT simultaneous multithreading 1064SMTP Simple Mail Transfer Protocol 1065SMU system management unit 1066SNMP Simple Network Management Protocol 1067SNR signal-to-noise ratio 1068SOA service oriented architecture 1069SOAP Simple Object Access Protocol 1070SOC system on chip 1071SOF start of frame 1072SOHO small office/home office 1073SOL serial over LAN 1074SP service pack 1075SP stack pointer 1076SPARC scalable processor architecture 1077SPARQL SPARQL Protocol and RDF Query Language 1078SPD security policy database 1079SPD serial presence detect 1080SPDIF Sony/Philips digital interface format 1081SPI serial peripheral interface 1082SPI stateful packet inspection 1083SPMD single process, multiple data 1084SPR special purpose register 1085SPT sectors per track 1086SQA software quality assurance 1087SQL Structured Query Language 1088SRAM static random access memory 1089SRC sample rate conversion 1090SS self-snoop 1091SS stack segment 1092SSB single-sideband modulation 1093SSD solid state drive 1094SSE streaming SIMD extensions 1095SSFDC solid state floppy disc card 1096SSH secure shell 1097SSI server side includes 1098SSL secure sockets layer 1099SSP stack smashing protection 1100STC software thermal control 1101STD state transition diagram 1102STP Spanning Tree Protocol 1103STP shielded twisted pair 1104SUS Single Unix Specification 1105SUT system under test 1106SVG scalable vector graphics 1107SVGA super video graphics {adapter,array} 1108SVM secure virtual machine 1109SVM support vector machine 1110SVR System V Release 1111SWF Shockwave Flash 1112SWIG simplified wrapper [and] interface generator 1113SYR symbol timing recovery 1114TA test assertion 1115TA transmitter address 1116TAI international atomic time 1117TAO track at once 1118TAOCP The Art of Computer Programming 1119TAP Test Anything Protocol 1120TAS test and set 1121TB terabyte 1122TCB trace capture buffer 1123TCB trusted computing base 1124TCC thermal control circuit 1125TCL tool command language 1126TCP Transmission Control Protocol 1127TCQ tagged command queueing 1128TDC time [to] digital converter 1129TDD test driven development 1130TDD time division duplex 1131TDM time division multiplexing 1132TDMA time division multiple access 1133TDOA time difference of arrival 1134TDP thermal design {point,power} 1135TECO Text Editor and Corrector 1136TFT thin film transistor 1137TFTP Trivial File Transfer Protocol 1138TIAS try it and see 1139TIFF tagged image file format 1140TITS try it to see 1141TK temporal key 1142TLA top level aggregator 1143TLB transition lookaside buffer 1144TLD top level domain 1145TLS thread local storage 1146TLS transport layer security 1147TM Turing machine 1148TM thermal monitor 1149TMDS transition minimized differential signaling 1150TMO timeout 1151TOD time of day 1152TOS terms of service 1153TOS trusted operating system 1154TOS type of service 1155TP transaction processing 1156TPM transactions per minute 1157TPM trusted platform module 1158TPR task priority register 1159TPS transmission parameters signaling 1160TR task register 1161TR token ring 1162TRL timing recovery loop 1163TRNG true random number generator 1164TS terminal services 1165TS time series 1166TS time stamp 1167TS transport stream 1168TSC time stamp counter 1169TSD time stamp disable 1170TSL test, set, lock 1171TSO time sharing option 1172TSP Time-Stamp Protocol 1173TSP Tunnel Setup Protocol 1174TSP time synchronization protocol 1175TSP traveling salesman problem 1176TSS task state segment 1177TTL time to live 1178TTL transistor-transistor logic 1179TTM translation table maps 1180TTY teletype 1181TUI {terminal,text-based,textual} user interface 1182TX {transmit out,transmitter} 1183TZ time zone 1184UAC user {access,account} control 1185UART universal asynchronous receiver/transmitter 1186UAT user acceptance testing 1187UC uncacheable 1188UCS uniform-cost search 1189UDMA ultra DMA 1190UDO ultra density optical 1191UDP User Datagram Protocol 1192UFS Unix File System 1193UI unit interval 1194UI user interface 1195UID unique identifier 1196UID user identifier 1197UL upload 1198UMA uniform memory access 1199UMA upper memory area 1200UMB upper memory block 1201UML unified modeling language 1202UMPC ultra-mobile PC 1203UPNP universal plug and play 1204UPS uninterruptible power supply 1205URI uniform resource identifier 1206URL uniform resource locator 1207URN uniform resource name 1208USART universal synchronous/asynchronous receiver/transmitter 1209USB universal serial bus 1210USWC uncacheable speculative write combining 1211UT unit test 1212UTC coordinated universal time 1213UTP unshielded twisted pair 1214UUCP Unix-to-Unix Copy Protocol 1215UUID universally unique identifier 1216UUOC useless use of cat 1217UUT unit under test 1218UX user experience 1219VA vertical alignment 1220VA virtual address 1221VA volt-ampere 1222VAX virtual address extension 1223VB Visual Basic 1224VCA variable-gain amplifier 1225VCC common collector voltage 1226VCF voltage-controlled filter 1227VCM virtual channel memory 1228VCO voltage-controlled oscillator 1229VCS version control system 1230VESA video electronics standards association 1231VFO variable-frequency oscillator 1232VG volume group 1233VGA video graphics {adapter,array} 1234VHDCI very high density cable interconnect 1235VID voltage level identifier 1236VIPT virtually indexed, physically tagged 1237VIVT virtually indexed, virtually tagged 1238VLAN virtual local area network 1239VLIW very long instruction word 1240VLSI very large scale integration 1241VLSM variable length subnet mask 1242VM virtual {machine,memory} 1243VME virtual mode extension 1244VMX vector multimedia extensions 1245VMX virtual machine extensions 1246VOD video on demand 1247VPN virtual private network 1248VR virtual reality 1249VRAM video random access memory 1250VRM voltage regulator module 1251VRRP Virtual Router Redundancy Protocol 1252W watt 1253W3C World Wide Web Consortium 1254WAN wide area network 1255WAP Wireless Application Protocol 1256WDT watchdog timer 1257WEP Wired Equivalent Privacy 1258WFI wait for interrupt 1259WFQ weighted fair queuing 1260WH write hit 1261WIFI wireless fidelity 1262WLAN wireless local area network 1263WM write miss 1264WMI Windows Management Instrumentation 1265WOL Wake-on-LAN 1266WOM Wake-on-Modem 1267WOR Wake-on-Ring 1268WORM write once read many 1269WP WordPerfect 1270WP word processor 1271WP write protect 1272WPA wi-fi protected access 1273WRAM window random access memory 1274WS web services 1275WTC write through caching 1276WWAN wireless wide area network 1277WWW world wide web 1278WYSIWYG what you see is what you get 1279XBAR crossbar 1280XER XML encoding rules 1281XGA extended graphics {adapter,array} 1282XIP execute in place 1283XML Extensible Markup Language 1284XOR exclusive or 1285XP extreme programming 1286XSL extensible stylesheet language 1287XSS cross site scripting 1288XT extended technology 1289XUL XML user interface language 1290YACC yet another compiler compiler 1291YAWPFAPR you are welcome; please file a problem report 1292YP Yellow Pages 1293YTD year to date 1294ZBR zone bit recording 1295ZFOD zero-filled on demand 1296ZIF zero insertion force 1297ZIFS zero insertion force socket 1298ZMA zone multicast address 1299