acronyms.comp revision 1.122
1$NetBSD: acronyms.comp,v 1.122 2011/03/09 17:52:45 jruoho Exp $ 2 33WHS three-way handshake 4AA anti-aliasing 5AAA authentication, authorization, accounting 6AAT average access time 7ABI application binary interface 8ABR available bit rate 9AC alternating current 10ACID atomicity, consistency, isolation, durability 11ACK acknowledgement 12ACK Amsterdam compiler kit 13ACL access control list 14ACL active current loop 15ACP auxillary control {program, process} 16ACPI advanced configuration and power interface 17ACS access control set 18ACU automatic calling unit 19ADB Apple desktop bus 20ADC analog [to] digital converter 21ADD acronym driven development 22ADP automatic data processing 23ADT abstract data type 24ADO active data objects 25ADP automatic data processing 26ADPCM adaptive differential pulse code modulation 27ADS alternate data stream 28ADSL asymmetric digital subscriber line 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 38ALU arithmetic and logical unit 39AM access method 40AM amplitude modulation 41AM alignment mask 42AMI alternate mark inversion 43AMT active management technology 44AN Arabic number 45ANSI American National Standards Institute 46AO analog output 47AOL alert on LAN 48AOS add or subtract 49AP access point 50AP application processor 51API application programming interface 52APIC advanced programmable interrupt controller 53ARAT always running APIC timer 54ARC adaptive replacement cache 55ARM Advanced RISC Machines 56ARP address resolution protocol 57ARPA Advanced Research Projects Agency 58ARQ automatic repeat request 59ARR address range register 60ARU audio response unit 61AS autonomous system 62ASC advanced smart cache 63ASCII American standard code for information interchange 64ASD agile software development 65ASE advanced software environment 66ASIC application-specific integrated circuit 67ASK amplitude shif keying 68ASLR address space layout randomization 69ASPM active state power management 70ASN autonomous system number 71ASQ automated software quality 72ASR address space register 73AST abstract syntax tree 74AST asynchronous trap 75AT access time 76AT advanced technology 77ATA advanced technology attachment 78ATAPI advanced technology attachment packet interface 79ATC address translation cache 80ATM asynchronous transfer mode 81ATX advanced technology extended 82AV anti virus 83AVL Adelson-Velsky-Landis 84AVX advanced vector extensions 85AWK Aho, Werner, and Kernighan 86BAL basic assembly language 87BAR base address register 88BBS bulletin board system 89BCC blind carbon copy 90BCD binary coded decimal 91BCR byte counte register 92BCS base configuration space 93BD baud 94BDD binary decision diagram 95BDUF big design up front 96BEDO burst extended data output 97BER basic encoding rules 98BER bit error rate 99BFD binary {file, format} descriptor 100BFKL big fscking kernel lock 101BFS breadth-first search 102BFT binary file transfer 103BGA ball grid array 104BGP border gateway protocol 105BIND Berkeley Internet Name Daemon 106BIOS basic input/output system 107BIST built-in self-test 108BIU bus interface unit 109BKDG BIOS and kernel developer's guide 110BLAS basic linear algebra subprograms 111BLOB binary large object 112BLC back light control 113BM bus master 114BMC baseboard management controller 115BMIC bus master interface controller 116BN boundary neutral 117BNF Backus-Naur form 118BO binary output 119BOF beginning of file 120BOM byte order mark 121BOM beginning of message 122BP base pointer 123BP boot processor 124BPB BIOS parameter block 125BPF Berkeley packet filter 126BPI bits per inch 127BPM business process modelling 128BPS bits per second 129BQS Berkeley quality software 130BSD Berkeley software distribution 131BSF bit scan forward 132BSOD blue screen of death 133BSP binary space partition 134BSP boot strap processor 135BSR bit scan reverse 136BSS block started by symbol 137BT Bluetooth 138BT BitTorrent 139BT bit test 140BTC bit test [and] complement 141BTR bit test [and] reset 142BTS bit test [and] set 143BTS bits per second 144BW bandwidth 145BWM block-write mode 146CA certificate authority 147CAD computer-aided design 148CAM computer assisted manufacturing 149CAM content addressable memory 150CARP common address redundancy protocol 151CAS (atomic) compare and swap 152CAS computer algebra system 153CAS column address strobe 154CASE computer aided software engineering 155CAU control access unit 156CAV constant angular velocity (as opposed to CLV) 157CBC cipher block chaining 158CBR constant bit rate 159CCD charge coupled device 160CC carbon coby 161CD compact disc 162CD cache disable 163CDDA compact disc digital audio 164CDRAM cache dynamic random access memory 165CER canonical encoding rules 166CF compact flash 167CFG context-free grammar 168CFG control-flow graph 169CG control gate 170CGA color graphics {array,adapter} 171CGI common gateway interface 172CHAP challenge-handshake authentication protocol 173CHS cylinder/head/sector 174CI {common, component} interface 175CIDR classless inter-domain routing 176CIFS common internet file system 177CIL common intermediate language 178CIS contact image sensor 179CJK Chinese, Japanese, and Korean 180CLF common log format 181CLI command line interface 182CLR common language runtime 183CLTT closed loop thermal throttling 184CLUT color look-up table 185CLV constant linear velocity (as opposed to CAV) 186CM configuration management 187CMA concert multithread architecture 188CMI control management interface 189CMI control method interface 190CMOS complementary metal-oxide-semiconductor 191CMP chip multi-processing 192CMS content management system 193CMYK cyan magenta yellow black 194CN {common, canonical} name 195CNC computer numerical control 196COF current operating frequency 197COFF common object file format 198COMA cache-only memory architecture 199COW copy-on-write 200CPB core performance boost 201CPG clock pulse generator 202CPL current privilege level 203CPS characters per second 204CPT command pass through 205CPU central processing unit 206CR carriage return 207CRC cyclic redundancy check 208CRLF carriage return line feed 209CRT cathode ray tube 210CS computer science 211CS cable select 212CS chip select 213CS code segment 214CSI common system interface 215CSMA carrier sense multiple access 216CSMA/CA carrier sense multiple access with collision avoidance 217CSMA/CD carrier sense multiple access with collision detection 218CSS cascading style sheets 219CSV comma-separated values 220CTM close to metal 221CTS clear to send 222CUA common user access 223CUT coordinated universal time 224CV control voltage 225CVS concurrent versions system 226DA destination address 227DAA distributed application architecture 228DAC discretionary access control 229DAC digital [to] analog converter 230DAO disk at once 231DAP directory access protocol 232DAT digital audio tape 233DAT dynamic acceleration technology 234DB database 235DBMS database management system 236DBS database server 237DC direct current 238DCC direct client [to] client 239DCC direct cable connect 240DCD data carrier detect 241DCE data control equipment 242DCE distributed computing environment 243DCS data collection systems 244DCT discrete cosine transform 245DCU data cache unit 246DDC display data channel 247DDE dynamic data exchange 248DDK device driver kit 249DDR double data rate 250DDS direct digital sound 251DDWG digital display working group 252DE desktop environment 253DE debugging extensions 254DEA data encryption algorithm 255DEK data encryption key 256DEP data execution prevention 257DER distinguished encoding rules 258DES Data Encryption Standard 259DFA deterministic finite automaton 260DFC data flow control 261DFS depth first search 262DFS distributed file system 263DFT discrete Fourier transform 264DFT diagnostic function test 265DGL data generation language 266DH Diffie-Hellman 267DHCP dynamic host configuration protocol 268DIFS distributed inter-frame space 269DIMM dual inline memory module 270DIRT design in real time 271DL download 272DL diode logic 273DLE data link escape 274DLL dynamic link library 275DMA direct memory access 276DMI desktop management interface 277DMS document management system 278DNARD Digital network appliance reference design 279DNS domain name system 280DOE distributed object environment 281DOF data over fibre 282DOM document object model 283DOS denial of service 284DOS disk operating system 285DPC deferred procedure call 286DPCM differential pulse code modulation 287DPD dead peer detection 288DPI dots per inch 289DPI deep packet inspection 290DPL descriptor privilege level 291DPST display power savings technology 292DRAM dynamic random access memory 293DRI direct rendering infrastructure 294DRM digital rights management 295DRRS display refresh rate switching 296DS debug store 297DSB double-sideband modulation 298DSDT differentiated system descriptor table 299DSL digital subscriber line 300DSL domain specific language 301DSLAM digital subscriber line access multiplexer 302DSN delivery status notification 303DSO dynamic shared object 304DSP digital signal processor 305DSSS direct sequence spread spectrum 306DTD document type definition 307DTE data terminal equipment 308DTE dumb terminal emulator 309DTL diode-transistor logic 310DTS digital thermal sensor 311DVB digital video broadcasting 312DVCS distributed version control system 313DVD digital versatile disc 314DVFS dynamic voltage and frequency scaling 315DVR digital video recorder 316DVI digital visual interface 317E-XER extended XML encoding rules 318EAP extensible authentication protocol 319EBR extended boot record 320ECC error correction code 321ECL emitter-coupled logic 322ECN explicit congestion notification 323ECP enhanced capability port 324ECS enhanced chip set 325ECS extended configuration space 326EDAT enhanced dynamic acceleration technology 327EDID extended display identification data 328EDO extended data out 329EDS electronical data sheet 330EEPROM electrically erasable programmable read only memory 331EFI extensible firmware interface 332EFL emitter follower logic 333EFM eight to fourteen modulation 334EGA enhanced graphics {array,adapter} 335EGP exterior gateway protocol 336EH extension header 337EIDE enchanced IDE 338EISA extended industry standard architecture 339ELF executable and linking format 340ELS entry level system 341EMI electro-magnetic interference 342EMP electro-magnetic pulse 343EMR electro-magnetic radiation 344EOF end of file 345EOL end of line 346EOL end of life 347EOT end of transmission 348EPIC explicitly parallel instruction computing 349EPP enhanced parallel port 350EPRML extended partial response, maximum likelihood 351EPROM erasable programmable read only memory 352ERD emergency recovery disk 353ESDRAM enhanced synchronous dynamic random access memory 354ESS electronic switching system 355EST enhanced speedstep 356ETL extract, transform, load 357EU execution unit 358EULA end user license agreement 359FAT file allocation table 360FBRAM frame buffer random access memory 361FCL fiber channel loop 362FCS frame check sequence 363FDC floppy disk controller 364FDD floppy disk drive 365FDDI fiber distributed data interface 366FDE full disk encryption 367FEA finite element analysis 368FEC forward error correction 369FET field-effect transistor 370FFH functional fixed hardware 371FFI foreign function interface 372FFS fast file system 373FFS find first set 374FFT fast Fourier transform 375FG floating gate 376FHSS frequency hop spread spectrum 377FID frequency identifier 378FIFO first in, first out 379FILO first in, last out 380FIR fast infrared 381FLOPS floating [point] operations per second 382FLOSS free / libre / open source software 383FM frequency modulation 384FMR false match rate 385FOSS free / open source software 386FPGA field programmable gate array 387FPM fast page mode 388FPR floating point register 389FPU floating point unit 390FQDN fully qualified domain name 391FRR false rejection rate 392FRU field replaceable unit 393FS file system 394FSB front side bus 395FSCK file system check 396FSK frequency shift keying 397FSM finite-state machine 398FTA fault tree analysis 399FTP file transfer protocol 400FTPS file transfer protocol, secure 401FUS fast user switching 402FWH firmware hub 403FWS folding white space 404GAS generic address structure 405GC garbage collector 406GCR group-coded recording 407GDT global descriptor table 408GEM graphics execution manager 409GEM graphics environment manager 410GID group identifier 411GIF graphics interchange format 412GMCH graphics and memory controller hub 413GNU GNU's not Unix 414GOT global offset table 415GPE general purpose event 416GPF general protection fault 417GPL GNU/general public license 418GPR general purpose register 419GPT GUID partition table 420GPU graphics processing unit 421GR golden ratio 422GRE generic routing encapsulation 423GSI global system interrupt 424GUI graphics user interface 425GUID globally unique identifier 426HA high availability 427HAL hardware abstraction layer 428HAT hashed array tree 429HBA host bus adapter 430HCI host controller interface 431HCI human-computer interaction 432HCL hardware compatibility list 433HCF halt and catch fire 434HDD hard disk drive 435HDCP high-bandwidth digital content protection 436HF high frequency 437HFM highest frequency mode 438HID human interface device 439HLL high-level language 440HMA high memory area 441HMI human-machine interface 442HP Hewlett-Packard 443HOOD hierarchical object oriented design 444HPC high performance computing 445HPET high precision event timer 446HT hyper-threading 447HTC hardware thermal control 448HTCC high temperature co-fired ceramic 449HTML hyper-text markup language 450HTT hyper-threading technology 451HTTP hyper-text transfer protocol 452HTTPS hyper-text transfer protocol, secure 453HVM hardware virtual machine 454HZ Hertz 455I2O intelligent input/output 456IA information assurance 457IANA Internet assigned number authority 458IBC iterated block cipher 459IBM International Business Machines 460IBS instruction based sampling 461ICA independent computer architecture 462IC integrated circuit 463ICB Internet citizen's band 464ICE in-circuit emulator 465ICH I/O controller hub 466ICE internal compiler error 467ICE in-circuit emulator 468ICMP Internet control message protocol 469IDA Intel dynamic acceleration 470IDE integrated drive electronics 471IDE integrated development environment 472IDPS instruction detection [and] prevention system 473IDRP inter-domain routing protocol 474IDS intrusion detection system 475IDT interrupt descriptor table 476IE Internet Explorer 477IEC international electrotechnical commission 478IEEE Institute [of] Electrical [and] Electronics Engineers 479IESG Internet Engineering Steering Group 480IETF Internet Engineering Task Force 481IFCM isochronous flow control mode 482IGMP Internet group management protocol 483IGP interior gateway protocol 484IHV independent hardware vendor 485IKE Internet key exchange 486ILM internal loopback mode 487ILP instruction level parallelism 488IM instant messaging 489IMC integrated memory controller 490IMCR interrupt mode configuration register 491IMAP Internet mail access protocol 492IMS information management system 493INCITS international committee on information technology standards 494IO input/output 495IOCTL input/output control 496IOMMU input/output memory management unit 497IP Internet Protocol 498IP intellectual property 499IPC interprocess communication 500IPE integrated programming environment 501IPI interprocessor interrupt 502IPNG Internet protocol, next generation 503IPS intrusion prevention system 504IPS in-plane switching 505IPSEC Internet protocol security 506IRC Internet relay chat 507IRDA infrared data association 508IRQ interrupt request 509IRQL interrupt request level 510IRTF Internet research task force 511IS information system 512ISA industry standard architecture 513ISA instruction set architecture 514ISDN integrated services digital network 515ISI inter-symbol interference 516ISM industrial, scientific and medical 517ISN initial serial number 518ISO international standards organization 519ISOC Internet society 520ISP Internet service provider 521ISR interrupt service routine 522IST interrupt stack table 523ISV independent software vendor 524ITB Intel turbo boost 525IV initialization vector 526IVT interrupt vector table 527JBOD just a bunch of disks 528JFET junction [gate] field-effect transistor 529JIT just in time 530JPEG joint photographic experts group 531JRE Java runtime environment 532JTAG joint test action group 533KB keyboard 534KB kilobyte 535KBD keyboard 536KBD kilobaud 537KLOC thousand lines of code 538KMS kernel-mode setting 539KPI kernel programming interface 540KVA kernel virtual address 541KVM kernel virtual memory 542KVM keyboard, video, mouse switch 543LAMP Linux Apache MySQL {Perl,PHP,Python} 544LAN local area network 545LAPIC local advanced programmable interrupt controller 546LAR load access rights 547LBA logical block addressing 548LBS location-based service 549LCD liquid crystal display 550LCP link control protocol 551LDA local delivery agent 552LDAP lightweight directory access protocol 553LDR light-dependent resistor 554LDT local descriptor table 555LE logical extent 556LED light emitting diode 557LER label edge router 558LF line feed 559LF low frequency 560LFM lowest frequency mode 561LFN long file names 562LFO low-frequency oscillation 563LFS log-structured file system 564LFU least frequently used 565LIFO last in, first out 566LILO last in, last out 567LILO Linux loader 568LINT local interrupt 569LIR local Internet registry 570LKM {Linux, loadable} kernel module 571LKML Linux kernel mailing list 572LL load linked 573LL/SC load linked / store conditional 574LLC logical link control 575LLF low level format 576LLMNR link-local multicast name resolution 577LLVM Low Level Virtual Machine 578LM long mode 579LMM link management mode 580LNO loop nest optimization 581LOC lines of code 582LPC low pin count 583LPS local positioning system 584LRC longitudinal redundancy check 585LRM left-to-right mark 586LRO left-to-right override 587LRU least recently used 588LSB least significant bit [or: byte] 589LSB Linux standards base 590LSI large scale integration 591LSL load segment limit 592LSR label switch router 593LTCC low temperature co-fired ceramic 594LTR left to right 595LTR load task register 596LUN logical unit number 597LV logical volume 598LVM logical volume management 599LVT local vector table 600LWP light-weight process 601LZW Lempel Ziv Welch 602MAC medium access control 603MAC mandatory access control 604MADT multiple APIC descriptor table 605MB megabyte 606MBR master boot record 607MBS megabits per second 608MC memory controller 609MCA machine check architecture 610MCC multiversion concurrency control 611MCE machine check exception 612MCGA multicolor graphics adapter 613MCH memory controller hub 614MCM multi-chip module 615MCQ memory controlled queue 616MD machine-dependent 617MDA mail delivery agent 618MDA monochrome display adapter 619MDRAM multibank dynamic random access memory 620MESI modified, exclusive, shared, invalid 621MFC merge from current 622MFM modified frequency modulation 623MI machine-independent 624MIB management information base 625MID mobile internet device 626MIDI musical instrument digital interface 627MIF management information format 628MIMD multiple instruction stream, multiple data stream 629MIME multipurpose Internet mail extensions 630MIMO multiple input multiple output 631MIPS million instructions per second 632MISD multiple instruction, single data 633MIT Massachusetts Institute of Technology 634ML mailing list 635ML machine language 636ML machine learning 637ML markup language 638ML maximum likelihood 639MLC multi-level cell 640MMIC monolithic microwave integrated circuit 641MMIO memory mapped input/output 642MMU memory management unit 643MMX multimedia extension 644MMX multiple math extension 645MMX matrix math extension 646MO magneto-optical 647MOESI modified, owned, exclusive, shared, invalid 648MOF maximum operating frequency 649MOSFET metal-oxide-semiconductor field-effect transistor 650MOSI modified, owned, shared, invalid 651MP multiprocessor 652MP multiprocessing 653MP multi-platform 654MP multiplayer 655MPEG moving picture experts group 656MPI message passing interface 657MPLS multiprotocol label switching 658MPP massively parallel processor 659MPS multiprocessor specification 660MPS memory pool system 661MR modem ready 662MRU most recently used 663MS Microsoft 664MSB most significant bit [or: byte] 665MSE mean square error 666MSF minutes seconds frames 667MSI message signaled interrupt 668MSI modified, shared, invalid 669MSR machine state register 670MSS maximum segment size 671MT machine translation 672MTA mail transfer agent 673MTBF mean time between failures 674MTRR memory type range register 675MTTF mean time to failure 676MTU maximum transmission unit 677MUA mail user agent 678MUD multi-user domain 679MVCC multiversion concurrency control 680MWE module width encoding 681MX mail exchange 682NACK negative acknowledgement 683NAN not a number 684NAS network attached storage 685NAT network address translation 686NAV network allocation vector 687NC numerical control 688NCO numerically-controlled oscillator 689NCP network control protocol 690NCQ native command queuing 691ND neighbor discovery 692NE numeric error 693NFA nondeterministic finite automaton 694NFS network file system 695NIA next instruction address 696NIC network interface card 697NIP network interface protocol 698NIS network information service 699NLS native language support 700NMI non-maskable interrupt 701NNTP network news transfer protocol 702NOP no operation 703NP nondeterministic polynomial time 704NRZ non-return to zero 705NSA National Security Agency 706NTM non-deterministic Turing machine 707NTP network time protocol 708NUMA non-uniform memory access 709NVRAM non-volatile random access memory 710NW not write-through 711NX no execute 712OAEP optimal asymmetric encryption padding 713OBO off by one 714OBOE off by one error 715OCL object constraint language 716OCR optical character recognition 717ODCM on-demand clock modulation 718ODT on-die termination 719OEM original equipment manufacturer 720OFDM orthogonal frequency division multiplexing 721OFET organic field-effect transistor 722ONFI open nand flash interface 723OO object oriented 724OO OpenOffice 725OOB out of band 726OOE out of order execution 727OOM out of memory 728OOP object oriented programming 729OOSE object oriented software engineering 730OPS operations per second 731OPM operations per minute 732OQL object query language 733ORM object-relational mapping 734OS operating system 735OSD open source definition 736OSF open software foundation 737OSI open systems interconnection 738OSI open-source initiative 739OSPF open shortest path first 740OSPM OS power management 741OSS open source software 742OSS open sound system 743OSVW operating system visible workarounds 744OTP one time password 745OU organizational unit 746OUI organizationally unique identifier 747OWL Web ontology language 748P2P peer to peer 749P2P PCI to PCI 750PA physical address 751PA phase accumulator 752PAC phase-amplitude converter 753PAE physical address extension 754PAM pluggable authentication modules 755PAM pulse amplitude modulation 756PAP password authentication protocol 757PAT page attribute table 758PAT port address translation 759PATA parallel ATA 760PAX portable archive exchange 761PBE pending break encoding 762PBE programming by example 763PC personal computer 764PCB printed circuit board 765PCC Portable C Compiler 766PCD page-level cache disable 767PCE performance-monitor counter enable 768PCI peripheral component interconnect 769PCM pulse code modulation 770PCMCIA personal computer memory card international association 771PD public domain 772PDA personal digital assistant 773PDA pushdown automaton 774PDAG propositional directed acyclic graph 775PDB power distribution board 776PDF portable document format 777PDM pulse-duration modulation 778PDN pull-down network 779PDP page descriptor page 780PDS product data sheet 781PDU protocol data unit 782PE protection enable 783PEP protocol extension protocol 784PER packed encoding rules 785PERL practical extraction [and] report language 786PFS perfect forward secrecy 787PGAS partitioned global address space 788PGE page global enable 789PGP pretty good privacy 790PHB PCI host bridge 791PIC programmable interrupt controller 792PIC position independent code 793PID process id 794PIE position independent executable 795PIM personal information manager 796PIM platform-independent model 797PIN personal identification number 798PIO programmed input/output 799PIPT physically indexed, physically tagged 800PIV personal identity verification 801PKI public key infrastructure 802PKCS public-key cryptography standards 803PLC programmable logic controller 804PLL phase locked loop 805PLRU pseudo LRU 806PLTM package level thermal management 807PM power management 808PM pulse modulation 809PME power management event 810PMI platform management interrupt 811PMIO port-mapped input/output 812PMT photo-multiplier tube 813PMU power management unit 814PNG portable network graphics 815PNP plug and play 816POE power over ethernet 817POF probability of failure 818POP post office protocol 819POP power on password 820POSIX portable operating system interface [for] Unix 821POST power on self test 822POTS plain old telephone system 823PP pair programming 824PPC PowerPC 825PPB PCI [to] PCI bridge 826PPI pixels per inch 827PPM pages per minute 828PPP point-to-point protocol 829PPPOA point-to-point protocol over ATM 830PPPOE point-to-point protocol over ethernet 831PPU physics processing unit 832PRBS pseudo-random bit sequence 833PRML partial response, maximum likelihood 834PRNG pseudo random number generator 835PROM programmable read only memory 836PSD power spectral density 837PSE page size extensions 838PSK pre-shared key 839PSK phase shift keying 840PSTN public switched telephone network 841PSW program status word 842PTE page table entry 843PTLA pseudo top level aggregator 844PTP page table page 845PTV perceived target value 846PU processing unit 847PUN physical unit number 848PV physical volume 849PVG physical volume group 850PVI protected-mode virtual interrupt 851PWM pulse width modulation 852PXE preboot execution environment 853QA quality assurance 854QAM quality assurance management 855QAM quadrature amplitude modulation 856QBE query by example 857QC quality control 858QDI quasi delay insensitive 859QOS quality of service 860RA receiver address 861RA remote assistance 862RA router advertisement 863RAD rapid application development 864RAID redundant array of inexpensive disks 865RAM random access memory 866RAS restartable atomic sequence 867RAS remote access service 868RAS row address strobe 869RBF radial basis function 870RBT red-black tree 871RC release candidate 872RC remote control 873RCS revision control system 874RCU read, copy, update 875RDF resource description format 876RDM relational data model 877RDMA remote direct memory access 878REST representational state transfer 879RF radio frequency 880RFI radio frequency interference 881RFO request for ownership 882RGB red green blue 883RH read hit 884RHL Red Hat Linux 885RIB routing information base 886RIFF Resource Interchange File Format 887RIP routing information protocol 888RIR regional Internet registry 889RISC reduced instruction set computing 890RKM ROM Kernel Manual 891RLE run length encoding 892RLL run length limited 893RLO right-to-left override 894RM read miss 895RMPM rapid memory power management 896RMS root mean square 897RMW read, modify, write 898RNG random number generator 899ROM read only memory 900RPC remote procedure call 901RPL requested privilege level 902RPM revolutions per minute 903RR random replacement 904RS relay station 905RSA Rivest, Shamir and Adleman 906RSS really simple syndication 907RSS residual sum of squares 908RT real time 909RTC real time clock 910RTC real time computing 911RTF rich text format 912RTL resistor-transistor logic 913RTOS real time operating system 914RTS {ready, request} to send 915RTT round time trip 916RUP rational unified process 917RWM read-write memory 918RX receive, receiver 919S/PDIF Sony/Phillips digital interface 920SA source address 921SA security association 922SA structured analysis 923SAAS software as a service 924SACD super audio compact disc 925SAD security association database 926SAM serial access memory 927SAM sum addressed memory 928SAN storage area network 929SAPIC streamlined advanced programmable interrupt controller 930SASD structured analysis, structured design 931SASI shugart associates system interface (predecessor to SCSI) 932SATA serial advanced technology attachment 933SB sound blaster 934SBU standard build unit 935SC store conditional 936SCA source code analyzer 937SCC single chip cloud 938SCC source code control 939SCCS source code control system 940SCM software configuration management 941SCM source code management 942SCP secure copy 943SCI system control interrupt 944SCI scalable coherent interface 945SCSI small computer system interface 946SCTP stream control transmission protocol 947SDK software development kit 948SDL simple declarative language 949SDRAM synchronous dynamic random access memory 950SDT syntax-directed translation 951SEGV segmentation violation 952SFI simple firmware interface 953SFC sequential function chart 954SGRAM synchronous graphics random access memory 955SIFS short inter-frame space 956SIMD single instruction, multiple data 957SIMM single inline memory module 958SIP session initiation protocol 959SIR slow infrared 960SISD single instruction, single data 961SLC single-level cell 962SLDRAM synchronous-link dynamic random access memory 963SLI scalable link interface 964SLI scan-line interleave 965SLOC source lines of code 966SLRU segmented LRU 967SMA smart memory access 968SMAF system management action field 969SMART self-monitoring analysis and reporting technology 970SMBIOS system management BIOS 971SMC system management controller 972SMI system management interrupt 973SMI structure of management information 974SMM system management mode 975SMP symmetric multiprocessing 976SMT simultaneous multithreading 977SMTP simple mail transfer protocol 978SMU system management unit 979SNMP simple network management protocol 980SNR signal [to] noise ratio 981SOA service oriented architecture 982SOAP simple object access protocol 983SOC system on chip 984SOHO small office / home office 985SOL serial over LAN 986SP stack pointer 987SP service pack 988SPARC scalable processor architecture 989SPARQL SPARQL protocol and RDF query language 990SPD security policy database 991SPD serial presence detect 992SPI serial peripheral interface 993SPI stateful packet inspection 994SPMD single process, multiple data 995SPR special purpose register 996SPT sectors per track 997SQA software quality assurance 998SQL structured query language 999SRAM static random access memory 1000SRC sample rate conversion 1001SS stack segment 1002SS self-snoop 1003SSB single-sideband modulation 1004SSD solid state drive 1005SSE streaming SIMD extensions 1006SSFDC solid state floppy disc card 1007SSH secure shell 1008SSI server side includes 1009SSL secure sockets layer 1010SSP stack smashing protection 1011STC software thermal control 1012STD state transition diagram 1013STP shielded twisted pair 1014STP spanning-tree protocol 1015SUS Single Unix Specification 1016SVG scalable vector graphics 1017SVGA super video graphics {array,adapter} 1018SVM secure virtual machine 1019SVM support vector machine 1020SWF Shockwave Flash 1021TA transmitter address 1022TA test assertion 1023TAI international atomic time 1024TAO track at once 1025TAOCP The Art of Computer Programming 1026TAS test and set 1027TB terabyte 1028TCB trace capture buffer 1029TCB trusted computing base 1030TCC thermal control circuit 1031TCL tool command language 1032TCP transmission control protocol 1033TCQ tagged command queueing 1034TDC time [to] digital converter 1035TDD test driven development 1036TDM time division multiplexing 1037TDOA time difference of arrival 1038TDP thermal design {point, power} 1039TECO Text Editor and Corrector 1040TFT thin film transistor 1041TFTP trivial file transfer protocol 1042TIAS try it and see 1043TIFF tagged image file format 1044TITS try it to see 1045TK temporal key 1046TLA top level aggregator 1047TLB transition lookaside buffer 1048TLD top level domain 1049TLS transport layer security 1050TLS thread local storage 1051TM Turing machine 1052TM thermal monitor 1053TMDS transition minimized differential signaling 1054TMO timeout 1055TOD time of day 1056TOS terms of service 1057TOS type of service 1058TOS trusted operating system 1059TP transaction processing 1060TPM trusted platform module 1061TPM transactions per minute 1062TPR task priority register 1063TR token ring 1064TR task register 1065TRNG true random number generator 1066TS time stamp 1067TS time series 1068TS terminal services 1069TSC time stamp counter 1070TSD time stamp disable 1071TSL test, set, lock 1072TSO time sharing option 1073TSP time stamp protocol 1074TSP tunnel setup protocol 1075TSP traveling salesman problem 1076TSS task state segment 1077TTL time to live 1078TTL transistor-transistor logic 1079TTM translation table maps 1080TTY teletype 1081TX transmit out, transmitter 1082TZ time zone 1083UAC user {account, access} control 1084UART universal asynchronous receiver/transmitter 1085UC uncacheable 1086UCS uniform-cost search 1087UDMA ultra DMA 1088UDO ultra density optical (storage) 1089UDP user datagram protocol 1090UFS Unix file system 1091UI user interface 1092UI unit interval 1093UID user identifier 1094UID unique identifier 1095UL upload 1096UMA uniform memory access 1097UMA upper memory area 1098UMB upper memory block 1099UMPC ultra-mobile PC 1100UML unified modeling language 1101UPS uninterruptible power supply 1102URI uniform resource identifier 1103URL uniform resource locator 1104URN uniform resource name 1105USART universal synchronous/asynchronous receiver/transmitter 1106USB universal serial bus 1107USWC uncacheable speculative write combining 1108UT unit test 1109UTC coordinated universal time 1110UTP unshielded twisted pair 1111UUCP Unix-to-Unix copy protocol 1112UUID universally unique identifier 1113UUOC useless use of cat 1114VA volt-ampere 1115VA virtual address 1116VA vertical alignment 1117VAX virtual address extension 1118VB Visual Basic 1119VCA variable-gain amplifier 1120VCC common collector voltage 1121VCF voltage-controlled filter 1122VCM virtual channel memory 1123VCO voltage-controlled oscillator 1124VESA video electronics standards association 1125VFO variable-frequency oscillator 1126VG volume group 1127VGA video graphics {array,adapter} 1128VHDCI very high density cable interconnect 1129VID voltage level identifier 1130VIPT virtually indexed, physically tagged 1131VIVT virtually indexed, virtually tagged 1132VLAN virtual local area network 1133VLIW very long instruction word 1134VLSI very large scale integration 1135VLSM variable length subnet mask 1136VOD video on demand 1137VM virtual {machine,memory} 1138VME virtual mode extension 1139VMX virtual machine extensions 1140VMX vector multimedia extensions 1141VPN virtual private network 1142VR virtual reality 1143VRAM video random access memory 1144VRM voltage regulator module 1145VRRP virtual router redundancy protocol 1146W Watt 1147W3C World Wide Web Consortium 1148WAN wide area network 1149WAP wireless application protocol 1150WEP wired equivalent privacy 1151WFI wait for interrupt 1152WH write hit 1153WIFI wireless fidelity 1154WLAN wireless local area network 1155WDT watchdog timer 1156WM write miss 1157WOL wake on LAN 1158WOR wake on ring 1159WORM write once read many 1160WP write protect 1161WP word processor 1162WP WordPerfect 1163WPA wi-fi protected access 1164WRAM window random access memory 1165WS web services 1166WTC write through caching 1167WWAN wireless wide area network 1168WWW world wide web 1169WYSIWYG what you see is what you get 1170XBAR crossbar 1171XER XML encoding rules 1172XGA extended graphics {array,adapter} 1173XIP execute in place 1174XML extensible markup language 1175XOR exclusive or 1176XP extreme programming 1177XSL extensible stylesheet language 1178XSS cross site scripting 1179XT extended technology 1180XUL XML user interface language 1181YACC yet another compiler compiler 1182YAWPFAPR you are welcome; please file a problem report 1183YP yellow pages (aka NIS) 1184YTD year to date 1185ZBR zone bit recording 1186ZFOD zero-filled on demand 1187ZIF zero insertion force 1188ZIFS zero insertion force socket 1189ZMA zone multicast address 1190