acronyms.comp revision 1.135
1$NetBSD: acronyms.comp,v 1.135 2013/05/25 21:17:51 jdf 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 138BSA basic service area 139BSD Berkeley Software Distribution 140BSF bit scan forward 141BSOD blue screen of death 142BSP binary space partition 143BSP bootstrap processor 144BSR bit scan reverse 145BSS basic service set 146BSS block started by symbol 147BSSID basic service set identifier 148BT BitTorrent 149BT Bluetooth 150BT bit test 151BTC bit test [and] complement 152BTR bit test [and] reset 153BTS bit test [and] set 154BTS bits per second 155BW bandwidth 156BWM block-write mode 157CA certificate authority 158CAD computer-aided design 159CAM computer assisted manufacturing 160CAM conditional access module 161CAM content addressable memory 162CARP Common Address Redundancy Protocol 163CAS column address strobe 164CAS compare and swap 165CAS computer algebra system 166CASE computer aided software engineering 167CAU control access unit 168CAV constant angular velocity 169CBC cipher block chaining 170CBR constant bit rate 171CC carbon coby 172CCD charge coupled device 173CCI co-channel interferer 174CD cache disable 175CD compact disc 176CDDA compact disc digital audio 177CDMA code division multiple access 178CDRAM cache dynamic random access memory 179CER canonical encoding rules 180CF compact flash 181CFG context-free grammar 182CFG control-flow graph 183CG control gate 184CGA color graphics {adapter,array} 185CGI common gateway interface 186CGN Carrier-Grade NAT 187CHAP Challenge-Handshake Authentication Protocol 188CHS cylinder/head/sector 189CI continuous integration 190CI {common,component} interface 191CIDR Classless Inter-Domain Routing 192CIFS Common Internet File System 193CIL common intermediate language 194CIR carrier-to-interference ratio 195CIS contact image sensor 196CJK Chinese, Japanese, [and] Korean 197CLF common log format 198CLI command line interface 199CLR common language runtime 200CLTT closed loop thermal throttling 201CLUT color look-up table 202CLV constant linear velocity 203CM configuration management 204CMA concert multithread architecture 205CMI control management interface 206CMI control method interface 207CMOS complementary metal-oxide-semiconductor 208CMP chip multi-processing 209CMS content management system 210CMYK cyan magenta yellow black 211CN {common,canonical} name 212CNC computer numerical control 213CNR carrier-to-noise ratio 214COF current operating frequency 215COFDM coded orthogonal frequency division multiplexing 216COFF common object file format 217COM component object model 218COMA cache-only memory architecture 219CORBA common object request broker architecture 220COW copy-on-write 221CP continuous pilot 222CPB core performance boost 223CPE common phase error 224CPG clock pulse generator 225CPL current privilege level 226CPLD complex programmable logic device 227CPS characters per second 228CPT command pass through 229CPU central processing unit 230CR carriage return 231CRC cyclic redundancy check 232CRL carrier recovery loop 233CRLF carriage return line feed 234CRT cathode ray tube 235CS cable select 236CS chip select 237CS code segment 238CS computer science 239CSI channel state information 240CSI common system interface 241CSMA carrier sense multiple access 242CSMA/CA carrier sense multiple access with collision avoidance 243CSMA/CD carrier sense multiple access with collision detection 244CSR control [and] status registers 245CSS cascading style sheets 246CSV comma-separated values 247CTM close to metal 248CTS clear to send 249CUA common user access 250CUT coordinated universal time 251CV control voltage 252CVS Concurrent Versions System 253DA destination address 254DAA distributed application architecture 255DAB digital audio broadcasting 256DAC digital [to] analog converter 257DAC discretionary access control 258DAD duplicate address detection 259DAO disk at once 260DAP Directory Access Protocol 261DAT digital audio tape 262DAT dynamic acceleration technology 263DB database 264DBA dynamic bandwidth allocation 265DBB data bus buffer 266DBC design by contract 267DBL dynamic buffer limiting 268DBMS database management system 269DBS database server 270DC direct current 271DCC Direct Client-to-Client 272DCC direct cable connect 273DCD data carrier detect 274DCE data control equipment 275DCE distributed computing environment 276DCOM distributed component object model 277DCOP Desktop COmmunication Protocol 278DCS data collection systems 279DCT discrete cosine transform 280DCU data cache unit 281DDC display data channel 282DDE dynamic data exchange 283DDK device driver kit 284DDL data description language 285DDR double data rate 286DDS direct digital sound 287DDWG digital display working group 288DE debugging extensions 289DE desktop environment 290DEA data encryption algorithm 291DEK data encryption key 292DEP data execution prevention 293DER distinguished encoding rules 294DES Data Encryption Standard 295DF don't fragment 296DFA deterministic finite automaton 297DFC data flow control 298DFS depth first search 299DFS distributed file system 300DFT diagnostic function test 301DFT discrete Fourier transform 302DGL data generation language 303DH Diffie-Hellman 304DHCP Dynamic Host Configuration Protocol 305DIFS distributed inter-frame space 306DIMM dual inline memory module 307DIRT design in real time 308DL diode logic 309DL download 310DLE data link escape 311DLL dynamic link library 312DMA direct memory access 313DMI desktop management interface 314DMS document management system 315DMT discrete multitone modulation 316DNARD Digital network appliance reference design 317DNS Domain Name System 318DOE distributed object environment 319DOF data over fibre 320DOM document object model 321DOS denial of service 322DOS disk operating system 323DPC deferred procedure call 324DPCM differential pulse code modulation 325DPD dead peer detection 326DPI deep packet inspection 327DPI dots per inch 328DPL descriptor privilege level 329DPST display power savings technology 330DRAM dynamic random access memory 331DRI direct rendering infrastructure 332DRM digital rights management 333DRRS display refresh rate switching 334DS debug store 335DSB double-sideband modulation 336DSDT differentiated system descriptor table 337DSL digital subscriber line 338DSL domain specific language 339DSLAM digital subscriber line access multiplexer 340DSN delivery status notification 341DSO dynamic shared object 342DSP digital signal processor 343DSSS direct sequence spread spectrum 344DTD document type definition 345DTE data terminal equipment 346DTE dumb terminal emulator 347DTL diode-transistor logic 348DTS digital thermal sensor 349DUT device under test 350DVB digital video broadcasting 351DVCS distributed version control system 352DVD digital versatile disc 353DVFS dynamic voltage and frequency scaling 354DVI digital visual interface 355DVR digital video recorder 356E-XER extended XML encoding rules 357EABI embedded-application binary interface 358EAP Extensible Authentication Protocol 359EBR extended boot record 360ECC error correction code 361ECL emitter-coupled logic 362ECN explicit congestion notification 363ECP enhanced capability port 364ECS enhanced chip set 365ECS extended configuration space 366EDAT enhanced dynamic acceleration technology 367EDGE explicit data graph execution 368EDID extended display identification data 369EDO extended data out 370EDS electronical data sheet 371EEPROM electrically erasable programmable read only memory 372EFI extensible firmware interface 373EFL emitter follower logic 374EFM eight to fourteen modulation 375EGA enhanced graphics {adapter,array} 376EGP exterior gateway protocol 377EH extension header 378EIDE enchanced IDE 379EISA extended industry standard architecture 380ELF executable and linking format 381ELS entry level system 382EMI electro-magnetic interference 383EMP electro-magnetic pulse 384EMR electro-magnetic radiation 385EOF end of file 386EOI end of interrupt 387EOL end of line 388EOT end of transmission 389EPIC explicitly parallel instruction computing 390EPP enhanced parallel port 391EPRML extended partial response, maximum likelihood 392EPROM erasable programmable read only memory 393ERD emergency recovery disk 394ERE extended regular expression 395ESDRAM enhanced synchronous dynamic random access memory 396ESS electronic switching system 397ESS extended service set 398ESSID extended service set identifier 399EST enhanced speedstep 400ETL extract, transform, load 401EU execution unit 402EULA end user license agreement 403FAT file allocation table 404FBRAM frame buffer random access memory 405FCL fiber channel loop 406FCS frame check sequence 407FDC floppy disk controller 408FDD floppy disk drive 409FDDI fiber distributed data interface 410FDE full disk encryption 411FEA finite element analysis 412FEC forward error correction 413FET field-effect transistor 414FFH functional fixed hardware 415FFI foreign function interface 416FFM focus follows mouse 417FFS Fast File System 418FFS find first set 419FFT fast Fourier transform 420FG floating gate 421FHSS frequency hop spread spectrum 422FID frequency identifier 423FIFO first in, first out 424FILO first in, last out 425FIR fast infrared 426FLOPS floating [point] operations per second 427FLOSS free/libre/open source software 428FM frequency modulation 429FMR false match rate 430FOSS free/open source software 431FPGA field programmable gate array 432FPM fast page mode 433FPR floating point register 434FPU floating point unit 435FQDN fully qualified domain name 436FRR false rejection rate 437FRU field replaceable unit 438FS file system 439FSB front side bus 440FSCK file system check 441FSF Free Software Foundation 442FSK frequency shift keying 443FSM finite-state machine 444FTA fault tree analysis 445FTL flash translation layer 446FTP File Transfer Protocol 447FTPS File Transfer Protocol Secure 448FUS fast user switching 449FWH firmware hub 450FWS folding white space 451GAL generic array logic 452GAS generic address structure 453GC garbage collector 454GCR group-coded recording 455GDT global descriptor table 456GEM graphics environment manager 457GEM graphics execution manager 458GENA general event notification architecture 459GHC Glasgow Haskell compiler 460GID group identifier 461GIF graphics interchange format 462GMCH graphics and memory controller hub 463GNU GNU's Not Unix 464GOT global offset table 465GPE general purpose event 466GPF general protection fault 467GPG GNU Privacy Guard 468GPL [GNU] General Public License 469GPR general purpose register 470GPS generalized processor sharing 471GPT GUID partition table 472GPU graphics processing unit 473GR golden ratio 474GRE generic routing encapsulation 475GSI global system interrupt 476GUI graphical user interface 477GUID globally unique identifier 478HA high availability 479HAL hardware abstraction layer 480HAT hashed array tree 481HBA host bus adapter 482HCF halt and catch fire 483HCI host controller interface 484HCI human-computer interaction 485HCL hardware compatibility list 486HDCP high-bandwidth digital content protection 487HDD hard disk drive 488HDL hardware description language 489HDTV high-definition television 490HF high frequency 491HFM highest frequency mode 492HID human interface device 493HLL high-level language 494HMA high memory area 495HMI human-machine interface 496HOOD hierarchical object oriented design 497HP Hewlett-Packard 498HPC high performance computing 499HPET high precision event timer 500HT hyper-threading 501HTC hardware thermal control 502HTCC high temperature co-fired ceramic 503HTML HyperText Markup Language 504HTT hyper-threading technology 505HTTP Hypertext Transfer Protocol 506HTTPS Hypertext Transfer Protocol Secure 507HVM hardware virtual machine 508HZ Hertz 509I2O intelligent input/output 510IA information assurance 511IANA Internet Assigned Numbers Authority 512IBC iterated block cipher 513IBM International Business Machines 514IBS instruction based sampling 515IBSS independent basic service set 516IC integrated circuit 517ICA independent computer architecture 518ICB Internet Citizen's Band 519ICE in-circuit emulator 520ICE internal compiler error 521ICH I/O controller hub 522ICMP Internet Control Message Protocol 523ICT information and communications technology 524ICW initialization command word 525IDA Intel dynamic acceleration 526IDE integrated development environment 527IDE integrated drive electronics 528IDPS intrusion detection [and] prevention system 529IDRP inter-domain routing protocol 530IDS intrusion detection system 531IDT interrupt descriptor table 532IE Internet Explorer 533IEC International Electrotechnical Commission 534IEEE Institute of Electrical and Electronics Engineers 535IESG Internet Engineering Steering Group 536IETF Internet Engineering Task Force 537IF intermediate frequency 538IFCM isochronous flow control mode 539IGD Internet gateway device 540IGMP Internet Group Management Protocol 541IGP interior gateway protocol 542IHV independent hardware vendor 543IKE Internet key exchange 544ILM internal loopback mode 545ILP instruction level parallelism 546IM instant messaging 547IMAP Internet Message Access Protocol 548IMC integrated memory controller 549IMCR interrupt mode configuration register 550IMR interrupt mask register 551IMS information management system 552INCITS InterNational Committee for Information Technology Standards 553IO input/output 554IOCTL input/output control 555IOMMU input/output memory management unit 556IP Internet Protocol 557IP intellectual property 558IPC interprocess communication 559IPE integrated programming environment 560IPI interprocessor interrupt 561IPNG Internet Protocol, Next Generation 562IPS in-plane switching 563IPS intrusion prevention system 564IPSEC Internet Protocol Security 565IRC Internet Relay Chat 566IRDA infrared data association 567IRQ interrupt request 568IRQL interrupt request level 569IRR interrupt request register 570IRTF Internet Research Task Force 571IS information system 572ISA industry standard architecture 573ISA instruction set architecture 574ISDN integrated services digital network 575ISI inter-symbol interference 576ISM industrial, scientific, [and] medical 577ISN initial serial number 578ISO International Standards Organization 579ISOC Internet Society 580ISP Internet service provider 581ISR in-service register 582ISR interrupt service routine 583IST interrupt stack table 584ISV independent software vendor 585IT information technology 586ITB Intel Turbo Boost 587IV initialization vector 588IVT interrupt vector table 589JBOD just a bunch of disks 590JFET junction [gate] field-effect transistor 591JIT just in time 592JPEG Joint Photographic Experts Group 593JRE Java Runtime Environment 594JTAG joint test action group 595KB keyboard 596KB kilobyte 597KBD keyboard 598KBD kilobaud 599KLOC thousand lines of code 600KMS kernel-mode setting 601KPI kernel programming interface 602KVA kernel virtual address 603KVM kernel virtual memory 604KVM keyboard, video, [and] mouse 605LAMP Linux Apache MySQL {Perl,PHP,Python} 606LAN local area network 607LAPIC local advanced programmable interrupt controller 608LAR load access rights 609LBA logical block addressing 610LBS location-based service 611LCD liquid crystal display 612LCP link control protocol 613LDA local delivery agent 614LDAP Lightweight Directory Access Protocol 615LDR light-dependent resistor 616LDT local descriptor table 617LE logical extent 618LED light emitting diode 619LER label edge router 620LF line feed 621LF low frequency 622LFM lowest frequency mode 623LFN long file names 624LFO low-frequency oscillation 625LFS log-structured file system 626LFU least frequently used 627LHP loop heat pipe 628LIFO last in, first out 629LILO LInux LOader 630LILO last in, last out 631LINT local interrupt 632LIR local Internet registry 633LKM {Linux,loadable} kernel module 634LKML Linux kernel mailing list 635LL load linked 636LL/SC load linked/store conditional 637LLC logical link control 638LLF low level format 639LLMNR link-local multicast name resolution 640LLVM Low Level Virtual Machine 641LM long mode 642LMM link management mode 643LNO loop nest optimization 644LOC lines of code 645LPC low pin count 646LPS local positioning system 647LRC longitudinal redundancy check 648LRM left-to-right mark 649LRO left-to-right override 650LRU least recently used 651LSB Linux standards base 652LSB least significant {bit,byte} 653LSI large scale integration 654LSL load segment limit 655LSN Large Scale NAT 656LSR label switch router 657LTCC low temperature co-fired ceramic 658LTR left to right 659LTR load task register 660LUN logical unit number 661LV logical volume 662LVM logical volume management 663LVT local vector table 664LWP light-weight process 665LZW Lempel Ziv Welch 666MAC mandatory access control 667MAC medium access control 668MADT multiple APIC descriptor table 669MB megabyte 670MBR master boot record 671MBS megabits per second 672MC memory controller 673MCA machine check architecture 674MCC multiversion concurrency control 675MCE machine check exception 676MCGA multicolor graphics adapter 677MCH memory controller hub 678MCM multi-chip module 679MCQ memory controlled queue 680MD machine-dependent 681MDA mail delivery agent 682MDA monochrome display adapter 683MDRAM multibank dynamic random access memory 684MESI modified, exclusive, shared, invalid 685MFC merge from current 686MFM modified frequency modulation 687MI machine-independent 688MIB management information base 689MID mobile Internet device 690MIDI musical instrument digital interface 691MIF management information format 692MIMD multiple instruction, multiple data 693MIME Multipurpose Internet Mail Extensions 694MIMO multiple input multiple output 695MIPS million instructions per second 696MISD multiple instruction, single data 697MIT Massachusetts Institute of Technology 698ML machine language 699ML machine learning 700ML mailing list 701ML markup language 702ML maximum likelihood 703MLC multi-level cell 704MLHP micro loop heat pipe 705MMIC monolithic microwave integrated circuit 706MMIO memory mapped input/output 707MMU memory management unit 708MMX matrix math extension 709MMX multimedia extension 710MMX multiple math extension 711MO magneto-optical 712MOESI modified, owned, exclusive, shared, invalid 713MOF maximum operating frequency 714MOSFET metal-oxide-semiconductor field-effect transistor 715MOSI modified, owned, shared, invalid 716MP multi-platform 717MP multiplayer 718MP {multiprocessing,multiprocessor} 719MPEG moving picture experts group 720MPI message passing interface 721MPLS Multiprotocol Label Switching 722MPP massively parallel processor 723MPS memory pool system 724MPS multiprocessor specification 725MR modem ready 726MRU most recently used 727MS Microsoft 728MSB most significant {bit,byte} 729MSE mean square error 730MSF minutes seconds frames 731MSI message signaled interrupt 732MSI modified, shared, invalid 733MSR machine state register 734MSS maximum segment size 735MT machine translation 736MTA mail transfer agent 737MTBF mean time between failures 738MTRR memory type range register 739MTTF mean time to failure 740MTU maximum transmission unit 741MUA mail user agent 742MUD multi-user domain 743MVCC multiversion concurrency control 744MWE module width encoding 745MX mail exchange 746NACK negative acknowledgement 747NAN not a number 748NAPT Network Address Port Translation 749NAS network attached storage 750NAT network address translation 751NAV network allocation vector 752NC numerical control 753NCO numerically-controlled oscillator 754NCP Network Control Protocol 755NCQ native command queuing 756ND neighbor discovery 757NE numeric error 758NFA nondeterministic finite automaton 759NFS network file system 760NIA next instruction address 761NIC network interface card 762NIDS network intrusion detection system 763NIP network interface protocol 764NIPS network intrusion prevention system 765NIS network information service 766NLS native language support 767NMI non-maskable interrupt 768NNTP Network News Transfer Protocol 769NOP no operation 770NP nondeterministic polynomial time 771NRZ non-return to zero 772NSA National Security Agency 773NTM non-deterministic Turing machine 774NTP Network Time Protocol 775NUMA non-uniform memory access 776NVRAM non-volatile random access memory 777NW not write-through 778NX no execute 779OAEP optimal asymmetric encryption padding 780OBO off by one 781OBOE off by one error 782OCL object constraint language 783OCR optical character recognition 784ODCM on-demand clock modulation 785ODT on-die termination 786OEM original equipment manufacturer 787OFDM orthogonal frequency division multiplexing 788OFET organic field-effect transistor 789OLE object linking and embedding 790ONFI open nand flash interface 791OO OpenOffice 792OO object oriented 793OOB out of band 794OOE out of order execution 795OOM out of memory 796OOO OpenOffice.org 797OOP object oriented programming 798OOSE object oriented software engineering 799OPM operations per minute 800OPS operations per second 801OQL object query language 802ORM object-relational mapping 803OS operating system 804OSD open source definition 805OSF open software foundation 806OSI Open Source Initiative 807OSI open systems interconnection 808OSPF open shortest path first 809OSPM OS power management 810OSS open sound system 811OSS open source software 812OSVW operating system visible workarounds 813OTP one time password 814OTP open telecom platform 815OU organizational unit 816OUI organizationally unique identifier 817OWL Web Ontology Language 818P2P PCI to PCI 819P2P peer to peer 820PA phase accumulator 821PA physical address 822PAC phase-amplitude converter 823PAE physical address extension 824PAL phase alternating line 825PAL programmable array logic 826PAM pluggable authentication modules 827PAM pulse amplitude modulation 828PAP password authentication protocol 829PAT page attribute table 830PAT port address translation 831PATA parallel ATA 832PAX portable archive exchange 833PBE pending break encoding 834PBE programming by example 835PC personal computer 836PC program counter 837PCB printed circuit board 838PCC Portable C Compiler 839PCD page-level cache disable 840PCE performance-monitor counter enable 841PCI peripheral component interconnect 842PCM phase change memory 843PCM pulse code modulation 844PCMCIA Personal Computer Memory Card International Association 845PD public domain 846PDA personal digital assistant 847PDA pushdown automaton 848PDAG propositional directed acyclic graph 849PDB power distribution board 850PDF portable document format 851PDM pulse-duration modulation 852PDN pull-down network 853PDP page descriptor page 854PDS product data sheet 855PDU protocol data unit 856PE protection enable 857PECI platform environment control interface 858PEP protocol extension protocol 859PER packed encoding rules 860PFS perfect forward secrecy 861PGAS partitioned global address space 862PGE page global enable 863PGP Pretty Good Privacy 864PHB PCI host bridge 865PHP PHP: Hypertext Preprocessor 866PIC position independent code 867PIC programmable interrupt controller 868PID process id 869PIE position independent executable 870PIM personal information manager 871PIM platform-independent model 872PIO programmed input/output 873PIPT physically indexed, physically tagged 874PIQ prefetch input queue 875PIT programmable interrupt timer 876PIV personal identity verification 877PKCS public-key cryptography standards 878PKI public key infrastructure 879PLC programmable logic controller 880PLD programmable logic device 881PLL phase locked loop 882PLRU pseudo LRU 883PLTM package level thermal management 884PM power management 885PM {phase,pulse} modulation 886PME power management event 887PMI platform management interrupt 888PMIO port-mapped input/output 889PMT photo-multiplier tube 890PMU power management unit 891PNG portable network graphics 892PNP plug and play 893POE power over ethernet 894POF probability of failure 895POP Post Office Protocol 896POP power on password 897POSIX Portable Operating System Interface [for Unix] 898POST power on self test 899POTS plain old telephone system 900PP pair programming 901PPB PCI [to] PCI bridge 902PPC PowerPC 903PPI pixels per inch 904PPM pages per minute 905PPP Point-to-Point Protocol 906PPPOA Point-to-Point Protocol over ATM 907PPPOE Point-to-Point Protocol over Ethernet 908PPU physics processing unit 909PRBS pseudo-random bit sequence 910PRML partial response, maximum likelihood 911PRN pseudo random {noise,number} 912PRNG pseudo random number generator 913PROM programmable read only memory 914PSD power spectral density 915PSE page size extensions 916PSK phase shift keying 917PSK pre-shared key 918PSTN public switched telephone network 919PSW program status word 920PTE page table entry 921PTLA pseudo top level aggregator 922PTP page table page 923PTV perceived target value 924PU processing unit 925PUN physical unit number 926PV physical volume 927PVG physical volume group 928PVI protected-mode virtual interrupt 929PWM pulse width modulation 930PXE preboot execution environment 931QA quality assurance 932QAM quadrature amplitude modulation 933QAM quality assurance management 934QBE query by example 935QC quality control 936QDI quasi delay insensitive 937QOS quality of service 938RA receiver address 939RA remote assistance 940RA resource affinity 941RA router advertisement 942RAD rapid application development 943RAID redundant array of inexpensive disks 944RAM random access memory 945RAS remote access service 946RAS restartable atomic sequence 947RAS row address strobe 948RBF radial basis function 949RBT red-black tree 950RC release candidate 951RC remote control 952RCS Revision Control System 953RCS revision control system 954RCU read, copy, update 955RDF resource description format 956RDM relational data model 957RDMA remote direct memory access 958RE regular expression 959REST representational state transfer 960RF radio frequency 961RFI radio frequency interference 962RFO request for ownership 963RGB red green blue 964RH read hit 965RHL Red Hat Linux 966RIB routing information base 967RIFF Resource Interchange File Format 968RIP Routing Information Protocol 969RIR regional Internet registry 970RISC reduced instruction set computing 971RKM ROM Kernel Manual 972RLE run length encoding 973RLL run length limited 974RLO right-to-left override 975RM read miss 976RMI remote method invocation 977RMPM rapid memory power management 978RMS root mean square 979RMW read, modify, write 980RNG random number generator 981ROM read only memory 982RPC remote procedure call 983RPL requested privilege level 984RPM revolutions per minute 985RR random replacement 986RR round robin 987RS relay station 988RSA Rivest, Shamir, [and] Adleman 989RSIP Realm Specific IP 990RSS really simple syndication 991RSS residual sum of squares 992RT real time 993RTC real time clock 994RTC real time computing 995RTF rich text format 996RTL resistor-transistor logic 997RTOS real time operating system 998RTS request to send 999RTT round time trip 1000RUP rational unified process 1001RWM read-write memory 1002RX {receive,receiver} 1003S/PDIF Sony/Philips Digital Interface Format 1004SA security advisory 1005SA security association 1006SA source address 1007SA structured analysis 1008SAAS software as a service 1009SACD super audio compact disc 1010SAD security association database 1011SAL system abstraction layer 1012SAM serial access memory 1013SAM sum addressed memory 1014SAN storage area network 1015SAPIC streamlined advanced programmable interrupt controller 1016SASD structured analysis, structured design 1017SASI Shugart Associates System Interface 1018SASL simple authentication [and] security layer 1019SATA serial advanced technology attachment 1020SB sound blaster 1021SBU standard build unit 1022SC store conditional 1023SCA source code analyzer 1024SCADA supervisory control and data acquisition 1025SCC single chip cloud 1026SCC source code control 1027SCCS Source Code Control System 1028SCI scalable coherent interface 1029SCI system control interrupt 1030SCM software configuration management 1031SCM source code management 1032SCP secure copy 1033SCSI Small Computer System Interface 1034SCTP Stream Control Transmission Protocol 1035SDI symbol deinterleave 1036SDK software development kit 1037SDL Simple Declarative Language 1038SDRAM synchronous dynamic random access memory 1039SDT syntax-directed translation 1040SEGV segmentation violation 1041SEO search engine optimization 1042SFC sequential function chart 1043SFI simple firmware interface 1044SFTP SSH File Transfer Protocol 1045SFTP Serial File Transfer Protocol 1046SFTP Simple File Transfer Protocol 1047SGRAM synchronous graphics random access memory 1048SIFS short inter-frame space 1049SIMD single instruction, multiple data 1050SIMM single inline memory module 1051SIP Session Initiation Protocol 1052SIR signal-to-interference ratio 1053SIR slow infrared 1054SISD single instruction, single data 1055SLC single-level cell 1056SLDRAM synchronous-link dynamic random access memory 1057SLI scalable link interface 1058SLI scan-line interleave 1059SLOC source lines of code 1060SLRU segmented LRU 1061SMA smart memory access 1062SMAF system management action field 1063SMART self-monitoring analysis and reporting technology 1064SMBIOS system management BIOS 1065SMC system management controller 1066SMI structure of management information 1067SMI system management interrupt 1068SMM system management mode 1069SMP symmetric multiprocessing 1070SMT simultaneous multithreading 1071SMTP Simple Mail Transfer Protocol 1072SMU system management unit 1073SNMP Simple Network Management Protocol 1074SNR signal-to-noise ratio 1075SOA service oriented architecture 1076SOAP Simple Object Access Protocol 1077SOC system on chip 1078SOF start of frame 1079SOHO small office/home office 1080SOL serial over LAN 1081SP service pack 1082SP stack pointer 1083SPARC scalable processor architecture 1084SPARQL SPARQL Protocol and RDF Query Language 1085SPD security policy database 1086SPD serial presence detect 1087SPDIF Sony/Philips digital interface format 1088SPI serial peripheral interface 1089SPI stateful packet inspection 1090SPMD single process, multiple data 1091SPR special purpose register 1092SPT sectors per track 1093SQA software quality assurance 1094SQL Structured Query Language 1095SRAM static random access memory 1096SRC sample rate conversion 1097SS self-snoop 1098SS stack segment 1099SSB single-sideband modulation 1100SSD solid state drive 1101SSE streaming SIMD extensions 1102SSFDC solid state floppy disc card 1103SSH secure shell 1104SSI server side includes 1105SSID service set identifier 1106SSL secure sockets layer 1107SSP stack smashing protection 1108STC software thermal control 1109STD state transition diagram 1110STP Spanning Tree Protocol 1111STP shielded twisted pair 1112SUS Single Unix Specification 1113SUT system under test 1114SVG scalable vector graphics 1115SVGA super video graphics {adapter,array} 1116SVM secure virtual machine 1117SVM support vector machine 1118SVR System V Release 1119SWF Shockwave Flash 1120SWIG simplified wrapper [and] interface generator 1121SYR symbol timing recovery 1122TA test assertion 1123TA transmitter address 1124TAI international atomic time 1125TAO track at once 1126TAOCP The Art of Computer Programming 1127TAP Test Anything Protocol 1128TAS test and set 1129TB terabyte 1130TCB trace capture buffer 1131TCB trusted computing base 1132TCC thermal control circuit 1133TCL tool command language 1134TCP Transmission Control Protocol 1135TCQ tagged command queueing 1136TDC time [to] digital converter 1137TDD test driven development 1138TDD time division duplex 1139TDM time division multiplexing 1140TDMA time division multiple access 1141TDOA time difference of arrival 1142TDP thermal design {point,power} 1143TECO Text Editor and Corrector 1144TFT thin film transistor 1145TFTP Trivial File Transfer Protocol 1146TIAS try it and see 1147TIFF tagged image file format 1148TITS try it to see 1149TK temporal key 1150TKIP Temporal Key Integrity Protocol 1151TLA top level aggregator 1152TLB transition lookaside buffer 1153TLD top level domain 1154TLS thread local storage 1155TLS transport layer security 1156TM Turing machine 1157TM thermal monitor 1158TMDS transition minimized differential signaling 1159TMO timeout 1160TOD time of day 1161TOS terms of service 1162TOS trusted operating system 1163TOS type of service 1164TP transaction processing 1165TPM transactions per minute 1166TPM trusted platform module 1167TPR task priority register 1168TPS transmission parameters signaling 1169TR task register 1170TR token ring 1171TRL timing recovery loop 1172TRNG true random number generator 1173TS terminal services 1174TS time series 1175TS time stamp 1176TS transport stream 1177TSC time stamp counter 1178TSD time stamp disable 1179TSL test, set, lock 1180TSO time sharing option 1181TSP Time-Stamp Protocol 1182TSP Tunnel Setup Protocol 1183TSP time synchronization protocol 1184TSP traveling salesman problem 1185TSS task state segment 1186TTL time to live 1187TTL transistor-transistor logic 1188TTM translation table maps 1189TTY teletype 1190TUI {terminal,text-based,textual} user interface 1191TX {transmit out,transmitter} 1192TZ time zone 1193UAC user {access,account} control 1194UART universal asynchronous receiver/transmitter 1195UAT user acceptance testing 1196UC uncacheable 1197UCS uniform-cost search 1198UDMA ultra DMA 1199UDO ultra density optical 1200UDP User Datagram Protocol 1201UFS Unix File System 1202UI unit interval 1203UI user interface 1204UID unique identifier 1205UID user identifier 1206UL upload 1207UMA uniform memory access 1208UMA upper memory area 1209UMB upper memory block 1210UML unified modeling language 1211UMPC ultra-mobile PC 1212UPNP universal plug and play 1213UPS uninterruptible power supply 1214URI uniform resource identifier 1215URL uniform resource locator 1216URN uniform resource name 1217USART universal synchronous/asynchronous receiver/transmitter 1218USB universal serial bus 1219USWC uncacheable speculative write combining 1220UT unit test 1221UTC coordinated universal time 1222UTP unshielded twisted pair 1223UUCP Unix-to-Unix Copy Protocol 1224UUID universally unique identifier 1225UUOC useless use of cat 1226UUT unit under test 1227UX user experience 1228VA vertical alignment 1229VA virtual address 1230VA volt-ampere 1231VAX virtual address extension 1232VB Visual Basic 1233VCA variable-gain amplifier 1234VCC common collector voltage 1235VCF voltage-controlled filter 1236VCM virtual channel memory 1237VCO voltage-controlled oscillator 1238VCS version control system 1239VESA video electronics standards association 1240VFO variable-frequency oscillator 1241VG volume group 1242VGA video graphics {adapter,array} 1243VHDCI very high density cable interconnect 1244VID voltage level identifier 1245VIPT virtually indexed, physically tagged 1246VIVT virtually indexed, virtually tagged 1247VLAN virtual local area network 1248VLIW very long instruction word 1249VLSI very large scale integration 1250VLSM variable length subnet mask 1251VM virtual {machine,memory} 1252VME virtual mode extension 1253VMX vector multimedia extensions 1254VMX virtual machine extensions 1255VOD video on demand 1256VPN virtual private network 1257VR virtual reality 1258VRAM video random access memory 1259VRM voltage regulator module 1260VRRP Virtual Router Redundancy Protocol 1261W watt 1262W3C World Wide Web Consortium 1263WAN wide area network 1264WAP Wireless Application Protocol 1265WAP wireless access point 1266WDT watchdog timer 1267WEP Wired Equivalent Privacy 1268WFI wait for interrupt 1269WFQ weighted fair queuing 1270WH write hit 1271WIFI wireless fidelity 1272WLAN wireless local area network 1273WM write miss 1274WMI Windows Management Instrumentation 1275WOL Wake-on-LAN 1276WOM Wake-on-Modem 1277WOR Wake-on-Ring 1278WORM write once read many 1279WP WordPerfect 1280WP word processor 1281WP write protect 1282WPA Wi-Fi Protected Access 1283WPA2 Wi-Fi Protected Access II 1284WPS Wi-Fi Protected Setup 1285WRAM window random access memory 1286WS web services 1287WTC write through caching 1288WWAN wireless wide area network 1289WWW world wide web 1290WYSIWYG what you see is what you get 1291XBAR crossbar 1292XER XML encoding rules 1293XGA extended graphics {adapter,array} 1294XIP execute in place 1295XML Extensible Markup Language 1296XOR exclusive or 1297XP extreme programming 1298XSL extensible stylesheet language 1299XSS cross site scripting 1300XT extended technology 1301XUL XML user interface language 1302YACC yet another compiler compiler 1303YAWPFAPR you are welcome; please file a problem report 1304YP Yellow Pages 1305YTD year to date 1306ZBR zone bit recording 1307ZFOD zero-filled on demand 1308ZIF zero insertion force 1309ZIFS zero insertion force socket 1310ZMA zone multicast address 1311