acronyms.comp revision 1.188
1$NetBSD: acronyms.comp,v 1.188 2018/01/10 08:47:30 pgoyette Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABI application binary interface 8ABR available bit rate 9AC alternating current 10ACI adjacent channel interferer 11ACID atomicity, consistency, isolation, durability 12ACK Amsterdam compiler kit 13ACK acknowledgement 14ACL access control list 15ACL active current loop 16ACP auxillary control {process,program} 17ACPI advanced configuration and power interface 18ACS access control set 19ACU automatic calling unit 20ADB Apple desktop bus 21ADC analog [to] digital converter 22ADD acronym driven development 23ADO active data objects 24ADP automatic data processing 25ADPCM adaptive differential pulse code modulation 26ADS alternate data stream 27ADSL asymmetric digital subscriber line 28ADT abstract data type 29AES Advanced Encryption Standard 30AFS Andrew File System 31AGC automatic gain control 32AGP accelerated graphics port 33AI analog input 34AI artificial intelligence 35AL access list 36AL active link 37ALE address latch enable 38ALS ambient light sensor 39ALU arithmetic and logical unit 40ALUA asymmetric logical unit access 41AM access method 42AM alignment mask 43AM amplitude modulation 44AMI alternate mark inversion 45AMP asymmetric multiprocessing 46AMQP advanced message queuing protocol 47AMT active management technology 48AN Arabic number 49ANSI American National Standards Institute 50AO analog output 51AOL Alert-on-LAN 52AOS add or subtract 53AP access point 54AP application processor 55API application programming interface 56APIC advanced programmable interrupt controller 57APIPA automatic private IP addressing 58APT advanced persistent threat 59AQM active queue management 60ARAT always running APIC timer 61ARC adaptive replacement cache 62ARM Advanced RISC Machines 63ARP Address Resolution Protocol 64ARPA Advanced Research Projects Agency 65ARQ automatic repeat request 66ARR address range register 67ARU audio response unit 68AS autonomous system 69ASC advanced smart cache 70ASCII American Standard Code for Information Interchange 71ASD agile software development 72ASE advanced software environment 73ASIC application-specific integrated circuit 74ASK amplitude shif keying 75ASLR address space layout randomization 76ASN autonomous system number 77ASPM active state power management 78ASQ automated software quality 79ASR address space register 80AST abstract syntax tree 81AST asynchronous trap 82AT access time 83AT advanced technology 84ATA advanced technology attachment 85ATAPI advanced technology attachment packet interface 86ATC address translation cache 87ATM asynchronous transfer mode 88ATX advanced technology extended 89AV anti virus 90AVL Adelson-Velsky-Landis 91AVX advanced vector extensions 92BA byte align 93BAL basic assembly language 94BAR base address register 95BBS bulletin board system 96BCC blind carbon copy 97BCD binary coded decimal 98BCR byte count register 99BCS base configuration space 100BD baud 101BDD binary decision diagram 102BDI bit deinterleave 103BDUF big design up front 104BEDO burst extended data output 105BER basic encoding rules 106BER bit error {rate,ratio} 107BFD binary {file,format} descriptor 108BFKL big fscking kernel lock 109BFS breadth-first search 110BFT binary file transfer 111BGA ball grid array 112BGP Border Gateway Protocol 113BGPSEC BGP Security 114BIND Berkeley Internet Name Daemon 115BIOS Basic Input/Output System 116BIOS built-in operating system 117BIST built-in self-test 118BIU bus interface unit 119BKDG BIOS and kernel developer's guide 120BLAS basic linear algebra subprograms 121BLC back light control 122BLOB binary large object 123BM bus master 124BMC baseboard management controller 125BMIC bus master interface controller 126BN boundary neutral 127BNF Backus-Naur form 128BO binary output 129BOF beginning of file 130BOM beginning of message 131BOM byte order mark 132BP base pointer 133BP boot processor 134BPB BIOS parameter block 135BPDU bridge protocol data unit 136BPF Berkeley Packet Filter 137BPI bits per inch 138BPM business process modelling 139BPS bits per second 140BPSK binary phase shift keying 141BQS Berkeley quality software 142BRE basic regular expression 143BS backspace 144BS binary sequence 145BSA basic service area 146BSD Berkeley Software Distribution 147BSF bit scan forward 148BSOD blue screen of death 149BSP binary space partition 150BSP board support package 151BSP bootstrap processor 152BSR bit scan reverse 153BSS basic service set 154BSS block started by symbol 155BSSID basic service set identifier 156BT BitTorrent 157BT Bluetooth 158BT bit test 159BTC bit test [and] complement 160BTR bit test [and] reset 161BTS bit test [and] set 162BTS bug tracking system 163BW bandwidth 164BWM block-write mode 165CA certificate authority 166CAD computer-aided design 167CAM computer assisted manufacturing 168CAM conditional access module 169CAM content addressable memory 170CARP Common Address Redundancy Protocol 171CAS column address strobe 172CAS compare and swap 173CAS computer algebra system 174CASE computer aided software engineering 175CAU control access unit 176CAV constant angular velocity 177CBC cipher block chaining 178CBR constant bit rate 179CC carbon coby 180CCD charge coupled device 181CCI co-channel interferer 182CCNUMA cache-coherent non-uniform memory access 183CD cache disable 184CD compact disc 185CDDA compact disc digital audio 186CDMA code division multiple access 187CDP Cisco Discovery Protocol 188CDRAM cache dynamic random access memory 189CER canonical encoding rules 190CF compact flash 191CFB cipher feedback 192CFG context-free grammar 193CFG control-flow graph 194CG control gate 195CGA Color Graphics Adapter 196CGI common gateway interface 197CGN Carrier-Grade NAT 198CHAP Challenge-Handshake Authentication Protocol 199CHS cylinder/head/sector 200CI continuous integration 201CI {common,component} interface 202CIDR Classless Inter-Domain Routing 203CIFS Common Internet File System 204CIL common intermediate language 205CIR carrier-to-interference ratio 206CIS contact image sensor 207CISC complex instruction set {computer,computing} 208CJK Chinese, Japanese, [and] Korean 209CLF common log format 210CLI command line interface 211CLR common language runtime 212CLTT closed loop thermal throttling 213CLUT color look-up table 214CLV constant linear velocity 215CM configuration management 216CMA concert multithread architecture 217CMS {configuration,content,course} management system 218CMI control {management,method} interface 219CMOS complementary metal-oxide-semiconductor 220CMP chip multi-processing 221CMS content management system 222CMYK cyan magenta yellow black 223CN {common,canonical} name 224CNC computer numerical control 225CNR carrier-to-noise ratio 226COF current operating frequency 227COFDM coded orthogonal frequency division multiplexing 228COFF common object file format 229COM component object model 230COMA cache-only memory architecture 231CORBA common object request broker architecture 232COW copy-on-write 233CP continuous pilot 234CPB core performance boost 235CPE common phase error 236CPG clock pulse generator 237CPL current privilege level 238CPLD complex programmable logic device 239CPP C preprocessor 240CPS characters per second 241CPT command pass through 242CPU central processing unit 243CR carriage return 244CRC cyclic redundancy check 245CRL carrier recovery loop 246CRLF carriage return line feed 247CRT cathode ray tube 248CS cable select 249CS chip select 250CS code segment 251CS computer science 252CSI channel state information 253CSI common system interface 254CSMA carrier sense multiple access 255CSMA/CA carrier sense multiple access with collision avoidance 256CSMA/CD carrier sense multiple access with collision detection 257CSR control [and] status registers 258CSRG Computer Systems Research Group 259CSS cascading style sheets 260CSV comma-separated values 261CTM close to metal 262CTR counter [mode] 263CTS clear to send 264CUA common user access 265CUT coordinated universal time 266CV control voltage 267CVE common vulnerabilities and exposures 268CVS Concurrent Versions System 269DA destination address 270DAA distributed application architecture 271DAB digital audio broadcasting 272DAC digital [to] analog converter 273DAC discretionary access control 274DAD duplicate address detection 275DANE DNS-based Authentication of Named Entities 276DAO disk at once 277DAP Directory Access Protocol 278DAT digital audio tape 279DAT dynamic acceleration technology 280DB database 281DBA database administrator 282DBA dynamic bandwidth allocation 283DBB data bus buffer 284DBC design by contract 285DBL dynamic buffer limiting 286DBMS database management system 287DBS database server 288DC direct current 289DCC Direct Client-to-Client 290DCC direct cable connect 291DCD data carrier detect 292DCE data control equipment 293DCE distributed computing environment 294DCOM distributed component object model 295DCOP Desktop COmmunication Protocol 296DCS data collection systems 297DCT discrete cosine transform 298DCU data cache unit 299DDC display data channel 300DDE dynamic data exchange 301DDK device driver kit 302DDL data description language 303DDR double data rate 304DDS direct digital sound 305DDWG Digital Display Working Group 306DE debugging extensions 307DE desktop environment 308DEA data encryption algorithm 309DEK data encryption key 310DEP data execution prevention 311DER distinguished encoding rules 312DES Data Encryption Standard 313DF don't fragment 314DFA deterministic finite automaton 315DFC data flow control 316DFS depth first search 317DFS distributed file system 318DFT diagnostic function test 319DFT discrete Fourier transform 320DGL data generation language 321DH Diffie-Hellman 322DHCP Dynamic Host Configuration Protocol 323DIFS distributed inter-frame space 324DIMM dual inline memory module 325DIRT design in real time 326DL diode logic 327DL discrete logarithm 328DL download 329DLE data link escape 330DLL dynamic link library 331DLP discrete logarithm problem 332DMA direct memory access 333DMI desktop management interface 334DMS document management system 335DMT discrete multitone modulation 336DNARD Digital network appliance reference design 337DND drag and drop 338DNS Domain Name System 339DNSSEC DNS Security Extensions 340DOE distributed object environment 341DOF data over fibre 342DOM document object model 343DOS denial of service 344DOS disk operating system 345DP DisplayPort 346DPC deferred procedure call 347DPCM differential pulse code modulation 348DPD dead peer detection 349DPI deep packet inspection 350DPI dots per inch 351DPL descriptor privilege level 352DPS Display PostScript 353DPST display power savings technology 354DRAM dynamic random access memory 355DRBG deterministic random bit generator 356DRI direct rendering infrastructure 357DRM digital rights management 358DRRS display refresh rate switching 359DS debug store 360DSA digital signature algorithm 361DSAP destination service access point 362DSB double-sideband modulation 363DSDT differentiated system descriptor table 364DSL digital subscriber line 365DSL domain specific language 366DSLAM digital subscriber line access multiplexer 367DSN delivery status notification 368DSO dynamic shared object 369DSP digital signal processor 370DSSS direct sequence spread spectrum 371DTD document type definition 372DTE data terminal equipment 373DTE dumb terminal emulator 374DTL diode-transistor logic 375DTLS datagram transport layer security 376DTS digital thermal sensor 377DUT device under test 378DVB digital video broadcasting 379DVCS distributed version control system 380DVD digital versatile disc 381DVFS dynamic voltage and frequency scaling 382DVI device independent 383DVI Digital Visual Interface 384DVR digital video recorder 385E-XER extended XML encoding rules 386EABI embedded-application binary interface 387EAI Email Address Internationalization 388EAI Enterprise Application Integration 389EAP Extensible Authentication Protocol 390EAPOL EAP over Lan 391EBCDIC Extended Binary Coded Decimal Interchange Code 392EBR extended boot record 393EC elliptic curve 394ECC elliptic curve cryptography 395ECC error correction code 396ECDH elliptic curve Diffie-Hellman 397ECDL elliptic curve discrete logarithm 398ECDLP elliptic curve discrete logarithm problem 399ECDSA elliptic curve digital signature algorithm 400ECL emitter-coupled logic 401ECN explicit congestion notification 402ECP enhanced capability port 403ECS enhanced chip set 404ECS extended configuration space 405EDAT enhanced dynamic acceleration technology 406EdDSA Edwards curve digital signature algorithm 407EDGE explicit data graph execution 408EDID extended display identification data 409EDO extended data out 410EDS electronical data sheet 411EEE energy efficient ethernet 412EEPROM electrically erasable programmable read only memory 413EFI extensible firmware interface 414EFL emitter follower logic 415EFM eight to fourteen modulation 416EGA Enhanced Graphics Adapter 417EGP exterior gateway protocol 418EH extension header 419EIDE enhanced IDE 420EISA extended industry standard architecture 421ELF executable and linking format 422ELS entry level system 423EMI electro-magnetic interference 424EMP electro-magnetic pulse 425EMR electro-magnetic radiation 426EOF end of file 427EOI end of interrupt 428EOL end of line 429EOT end of transmission 430EPIC explicitly parallel instruction computing 431EPP enhanced parallel port 432EPRML extended partial response, maximum likelihood 433EPROM erasable programmable read only memory 434ERD emergency recovery disk 435ERD entity relationship diagram 436ERE extended regular expression 437ESDRAM enhanced synchronous dynamic random access memory 438ESS electronic switching system 439ESS extended service set 440ESSID extended service set identifier 441EST enhanced speedstep 442ETL extract, transform, load 443EU execution unit 444EULA end user license agreement 445FAT file allocation table 446FBRAM frame buffer random access memory 447FCL fiber channel loop 448FCS frame check sequence 449FDC floppy disk controller 450FDD floppy disk drive 451FDDI fiber distributed data interface 452FDE full disk encryption 453FEA finite element analysis 454FEC forward error correction 455FET field-effect transistor 456FF finite field 457FF form feed 458FFDH finite-field Diffie-Hellman 459FFH functional fixed hardware 460FFI foreign function interface 461FFM focus follows mouse 462FFS Fast File System 463FFS find first set 464FFT fast Fourier transform 465FG floating gate 466FHSS frequency hop spread spectrum 467FID frequency identifier 468FIFO first in, first out 469FILO first in, last out 470FIPS Federal Information Processing Standards 471FIR fast infrared 472FLOPS floating [point] operations per second 473FLOSS free/libre/open source software 474FM frequency modulation 475FMR false match rate 476FOSS free/open source software 477FPGA field programmable gate array 478FPM fast page mode 479FPR floating point register 480FPU floating point unit 481FQDN fully qualified domain name 482FRR false rejection rate 483FRU field replaceable unit 484FS file system 485FSB front side bus 486FSCK file system check 487FSF Free Software Foundation 488FSK frequency shift keying 489FSM finite-state machine 490FTA fault tree analysis 491FTL flash translation layer 492FTP File Transfer Protocol 493FTPS File Transfer Protocol Secure 494FUS fast user switching 495FWH firmware hub 496FWS folding white space 497GAL generic array logic 498GAS generic address structure 499GC garbage collector 500GCM Galois counter mode 501GCR group-coded recording 502GDT global descriptor table 503GEM graphics environment manager 504GEM graphics execution manager 505GENA general event notification architecture 506GHC Glasgow Haskell compiler 507GID group identifier 508GIF graphics interchange format 509GMCH graphics and memory controller hub 510GNU GNU's Not Unix 511GOP graphics output protocol 512GOT global offset table 513GPE general purpose event 514GPF general protection fault 515GPG GNU Privacy Guard 516GPL [GNU] General Public License 517GPR general purpose register 518GPS generalized processor sharing 519GPT GUID partition table 520GPU graphics processing unit 521GR golden ratio 522GRE generic routing encapsulation 523GSI global system interrupt 524GUI graphical user interface 525GUID globally unique identifier 526GVFS git virtual file system 527HA high availability 528HAL hardware abstraction layer 529HAT hashed array tree 530HBA host bus adapter 531HCF halt and catch fire 532HCI host controller interface 533HCI human-computer interaction 534HCL hardware compatibility list 535HDCP High-bandwidth Digital Content Protection 536HDD hard disk drive 537HDL hardware description language 538HDMI High-Definition Multimedia Interface 539HDTV high-definition television 540HF high frequency 541HFM highest frequency mode 542HID human interface device 543HLL high-level language 544HMA high memory area 545HMI human-machine interface 546HOOD hierarchical object oriented design 547HP Hewlett-Packard 548HPC high performance computing 549HPET high precision event timer 550HSM hardware security module 551HSM hierarchical storage management 552HT hyper-threading 553HTC hardware thermal control 554HTCC high temperature co-fired ceramic 555HTML HyperText Markup Language 556HTT hyper-threading technology 557HTTP Hypertext Transfer Protocol 558HTTPS Hypertext Transfer Protocol Secure 559HVM hardware virtual machine 560HZ Hertz 561I2O intelligent input/output 562IA information assurance 563IANA Internet Assigned Numbers Authority 564IBC iterated block cipher 565IBM International Business Machines 566IBS instruction based sampling 567IBSS independent basic service set 568IC integrated circuit 569ICA independent computer architecture 570ICB Internet Citizen's Band 571ICE in-circuit emulator 572ICE internal compiler error 573ICH I/O controller hub 574ICMP Internet Control Message Protocol 575ICT information and communications technology 576ICW initialization command word 577IDA Intel dynamic acceleration 578IDCMP Intuition direct communication message port 579IDE integrated development environment 580IDE integrated drive electronics 581IDPS intrusion detection [and] prevention system 582IDRP inter-domain routing protocol 583IDS intrusion detection system 584IDT interrupt descriptor table 585IE Internet Explorer 586IEC International Electrotechnical Commission 587IEEE Institute of Electrical and Electronics Engineers 588IESG Internet Engineering Steering Group 589IETF Internet Engineering Task Force 590IF intermediate frequency 591IFCM isochronous flow control mode 592IFF Interchange File Format 593IGD Internet gateway device 594IGMP Internet Group Management Protocol 595IGP interior gateway protocol 596IHV independent hardware vendor 597IKE Internet key exchange 598ILM internal loopback mode 599ILOM integrated lights-out management 600ILP instruction level parallelism 601IM instant messaging 602IMAP Internet Message Access Protocol 603IMC integrated memory controller 604IMCR interrupt mode configuration register 605IMR interrupt mask register 606IMS information management system 607INCITS InterNational Committee for Information Technology Standards 608IO input/output 609IOCTL input/output control 610IOMMU input/output memory management unit 611IOT Internet of Things 612IP Internet Protocol 613IP intellectual property 614IPC interprocess communication 615IPE integrated programming environment 616IPI interprocessor interrupt 617IPNG Internet Protocol, Next Generation 618IPS in-plane switching 619IPS intrusion prevention system 620IPSEC Internet Protocol Security 621IRC Internet Relay Chat 622IRDA infrared data association 623IRQ interrupt request 624IRQL interrupt request level 625IRR interrupt request register 626IRTF Internet Research Task Force 627IS information system 628ISA industry standard architecture 629ISA instruction set architecture 630ISDN integrated services digital network 631ISI inter-symbol interference 632ISM industrial, scientific, [and] medical 633ISN initial serial number 634ISO International Standards Organization 635ISOC Internet Society 636ISP Internet service provider 637ISR in-service register 638ISR interrupt service routine 639IST interrupt stack table 640ISV independent software vendor 641IT information technology 642ITB Intel Turbo Boost 643ITIL information technology infrastructure library 644ITSM IT service management 645IV initialization vector 646IVT interrupt vector table 647JBOD just a bunch of disks 648JFET junction [gate] field-effect transistor 649JIT just in time 650JPEG Joint Photographic Experts Group 651JRE Java Runtime Environment 652JTAG joint test action group 653KB keyboard 654KB kilobyte 655KBD keyboard 656KBD kilobaud 657KLOC thousand lines of code 658KMS kernel-mode setting 659KPI kernel programming interface 660KVA kernel virtual address 661KVM kernel virtual machine 662KVM kernel virtual memory 663KVM keyboard, video, [and] mouse 664LAMP Linux Apache MySQL {Perl,PHP,Python} 665LAN local area network 666LAPIC local advanced programmable interrupt controller 667LAR load access rights 668LBA logical block addressing 669LBS location-based service 670LCD liquid crystal display 671LCP link control protocol 672LDA local delivery agent 673LDAP Lightweight Directory Access Protocol 674LDR light-dependent resistor 675LDT local descriptor table 676LE logical extent 677LED light emitting diode 678LER label edge router 679LF line feed 680LF low frequency 681LFM lowest frequency mode 682LFN long file names 683LFO low-frequency oscillation 684LFS log-structured file system 685LFU least frequently used 686LHP loop heat pipe 687LIFO last in, first out 688LILO LInux LOader 689LILO last in, last out 690LINT local interrupt 691LIR local Internet registry 692LKM {Linux,loadable} kernel module 693LKML Linux kernel mailing list 694LL load linked 695LL/SC load linked/store conditional 696LLC logical link control 697LLDP link layer discovery protocol 698LLF low level format 699LLMNR link-local multicast name resolution 700LLVM Low Level Virtual Machine 701LM long mode 702LMM link management mode 703LNO loop nest optimization 704LOC lines of code 705LOM lights-out management 706LPC low pin count 707LPS local positioning system 708LRC longitudinal redundancy check 709LRM left-to-right mark 710LRO left-to-right override 711LRU least recently used 712LSB Linux standards base 713LSB least significant {bit,byte} 714LSI large scale integration 715LSL load segment limit 716LSN Large Scale NAT 717LSN log sequence number 718LSR label switch router 719LTCC low temperature co-fired ceramic 720LTO link time optimization 721LTR left to right 722LTR load task register 723LTR letter(-sized paper) 724LTS long term support 725LUA Lua Uppercase Accident 726LUN logical unit number 727LV logical volume 728LVM logical volume management 729LVT local vector table 730LWP light-weight process 731LZW Lempel Ziv Welch 732MAC mandatory access control 733MAC {media,medium} access control 734MAC message authentication {check,code} 735MADT multiple APIC descriptor table 736MB megabyte 737MBA multi-boot agent 738MBR master boot record 739MBS megabits per second 740MC memory controller 741MCA machine check architecture 742MCA MicroChannel architecture 743MCC multiversion concurrency control 744MCE machine check exception 745MCGA Multi-Color Graphics Array 746MCH memory controller hub 747MCM multi-chip module 748MCQ memory controlled queue 749MD machine-dependent 750MDA mail delivery agent 751MDA Monochrome Display Adapter 752MDRAM multibank dynamic random access memory 753MESI modified, exclusive, shared, invalid 754MFC merge from current 755MFC Microsoft Foundation Classes 756MFM modified frequency modulation 757MI machine-independent 758MIB management information base 759MIC message integrity {check,code} 760MID mobile Internet device 761MIDI musical instrument digital interface 762MIF management information format 763MII media independent interface 764MIM man in the middle 765MIMD multiple instruction, multiple data 766MIME Multipurpose Internet Mail Extensions 767MIMO multiple input multiple output 768MIPS million instructions per second 769MISD multiple instruction, single data 770MIT Massachusetts Institute of Technology 771MITM man in the middle 772ML machine language 773ML machine learning 774ML mailing list 775ML markup language 776ML maximum likelihood 777MLC multi-level cell 778MLD multicast listener discovery 779MLHP micro loop heat pipe 780MMF multi-mode fiber 781MMIC monolithic microwave integrated circuit 782MMIO memory mapped input/output 783MMORPG massive multiplayer online role playing game 784MMU memory management unit 785MMX matrix math extension 786MMX multimedia extension 787MMX multiple math extension 788MO magneto-optical 789MOESI modified, owned, exclusive, shared, invalid 790MOF maximum operating frequency 791MOSFET metal-oxide-semiconductor field-effect transistor 792MOSI modified, owned, shared, invalid 793MP multi-platform 794MP multiplayer 795MP {multiprocessing,multiprocessor} 796MPEG moving picture experts group 797MPI message passing interface 798MPLS Multiprotocol Label Switching 799MPP massively parallel processor 800MPS memory pool system 801MPS multiprocessor specification 802MR modem ready 803MRU most recently used 804MS Microsoft 805MSB most significant {bit,byte} 806MSE mean square error 807MSF minutes seconds frames 808MSI message signaled interrupt 809MSI modified, shared, invalid 810MSR machine state register 811MSS maximum segment size 812MSTP Multiple Spanning Tree Protocol 813MT machine translation 814MTA mail transfer agent 815MTBF mean time between failures 816MTP media transfer protocol 817MTRR memory type range register 818MTTF mean time to failure 819MTU maximum transmission unit 820MUA mail user agent 821MUD multi-user domain 822MVCC multiversion concurrency control 823MWE module width encoding 824MX mail exchange 825NACK negative acknowledgement 826NAN not a number 827NAPT Network Address Port Translation 828NAS network attached storage 829NAT network address translation 830NAV network allocation vector 831NC numerical control 832NCO numerically-controlled oscillator 833NCP Network Control Protocol 834NCQ native command queuing 835ND neighbor discovery 836NDFA nondeterministic finite automaton 837NE numeric error 838NFA nondeterministic finite automaton 839NFC near-field communication 840NFCI no functional change intended 841NFS network file system 842NIA next instruction address 843NIC network information center 844NIC network interface card 845NIDS network intrusion detection system 846NIP network interface protocol 847NIPS network intrusion prevention system 848NIS network information service 849NIST National Institute of Standards and Technology 850NLS native language support 851NMI non-maskable interrupt 852NNTP Network News Transfer Protocol 853NOC network operations center 854NOP no operation 855NOS network operating system 856NP nondeterministic polynomial time 857NRZ non-return to zero 858NSA nation-state adversary 859NSA no such agency 860NSA National Security Agency 861NTM non-deterministic Turing machine 862NTP Network Time Protocol 863NUMA non-uniform memory access 864NVRAM non-volatile random access memory 865NW not write-through 866NX no execute 867OAEP optimal asymmetric encryption padding 868OBO off by one 869OBOE off by one error 870OCL object constraint language 871OCR optical character recognition 872ODCM on-demand clock modulation 873ODT on-die termination 874OEM original equipment manufacturer 875OFB output feedback 876OFDM orthogonal frequency division multiplexing 877OFET organic field-effect transistor 878OLAP online analytical processing 879OLE object linking and embedding 880OLTP online transaction processing 881ONFI open nand flash interface 882OO OpenOffice 883OO object oriented 884OOB out of band 885OOE out of order execution 886OOM out of memory 887OOO OpenOffice.org 888OOP object oriented programming 889OOPS object oriented programming systems 890OOSE object oriented software engineering 891OPM operations per minute 892OPS operations per second 893OQL Object Query Language 894ORB object request broker 895ORM object-relational mapping 896OS operating system 897OSD open source definition 898OSF open software foundation 899OSI Open Source Initiative 900OSI open systems interconnection 901OSPF open shortest path first 902OSPM OS power management 903OSS open sound system 904OSS open source software 905OSVW operating system visible workarounds 906OTP one time password 907OTP open telecom platform 908OU organizational unit 909OUI organizationally unique identifier 910OWL Web Ontology Language 911P2P PCI to PCI 912P2P peer to peer 913PA phase accumulator 914PA physical address 915PAC phase-amplitude converter 916PAE physical address extension 917PAL phase alternating line 918PAL programmable array logic 919PAM pluggable authentication modules 920PAM pulse amplitude modulation 921PAP password authentication protocol 922PAT page attribute table 923PAT port address translation 924PATA parallel ATA 925PAX portable archive exchange 926PBE pending break encoding 927PBE programming by example 928PC personal computer 929PC program counter 930PCB printed circuit board 931PCB process control block 932PCC Portable C Compiler 933PCD page-level cache disable 934PCE performance-monitor counter enable 935PCI peripheral component interconnect 936PCM phase change memory 937PCM pulse code modulation 938PCMCIA Personal Computer Memory Card International Association 939PCP Port Control Protocol 940PD public domain 941PDA personal digital assistant 942PDA pushdown automaton 943PDAG propositional directed acyclic graph 944PDB power distribution board 945PDF portable document format 946PDM pulse-duration modulation 947PDN pull-down network 948PDP page {descriptor,directory} page 949PDS product data sheet 950PDU protocol data unit 951PE protection enable 952PEAP Protected EAP 953PECI platform environment control interface 954PEP protocol extension protocol 955PER packed encoding rules 956PFS perfect forward secrecy 957PGAS partitioned global address space 958PGE page global enable 959PGP Pretty Good Privacy 960PHB PCI host bridge 961PHP PHP: Hypertext Preprocessor 962PIC position independent code 963PIC programmable interrupt controller 964PICNIC problem in chair, not in computer 965PID process id 966PIE position independent executable 967PIL Priority Interrupt Level 968PIM personal information manager 969PIM platform-independent model 970PIO programmed input/output 971PIPT physically indexed, physically tagged 972PIQ prefetch input queue 973PIT programmable interrupt timer 974PIV personal identity verification 975PKCS public-key cryptography standards 976PKI public key infrastructure 977PLC programmable logic controller 978PLD programmable logic device 979PLL phase locked loop 980PLRU pseudo LRU 981PLTM package level thermal management 982PM power management 983PM {phase,pulse} modulation 984PME power management event 985PMI platform management interrupt 986PMIO port-mapped input/output 987PMT photo-multiplier tube 988PMU power management unit 989PNG portable network graphics 990PNP plug and play 991POE power over ethernet 992POF probability of failure 993POP Post Office Protocol 994POP power on password 995POSIX Portable Operating System Interface [for Unix] 996POST power on self test 997POTS plain old telephone system 998PP pair programming 999PPB PCI [to] PCI bridge 1000PPC PowerPC 1001PPI pixels per inch 1002PPM pages per minute 1003PPP Point-to-Point Protocol 1004PPPOA Point-to-Point Protocol over ATM 1005PPPOE Point-to-Point Protocol over Ethernet 1006PPU physics processing unit 1007PRBS pseudorandom bit sequence 1008PRG pseudorandom generator 1009PRF pseudorandom function [family] 1010PRML partial response, maximum likelihood 1011PRN pseudorandom {noise,number} 1012PRNG pseudorandom number generator 1013PROM programmable read only memory 1014PRP pseudorandom permutation 1015PSD power spectral density 1016PSE page size extensions 1017PSK phase shift keying 1018PSK pre-shared key 1019PSTN public switched telephone network 1020PSW program status word 1021PTE page table entry 1022PTLA pseudo top level aggregator 1023PTP page table page 1024PTV perceived target value 1025PU processing unit 1026PUN physical unit number 1027PV physical volume 1028PVG physical volume group 1029PVI protected-mode virtual interrupt 1030PVST Per-VLAN Spanning Tree 1031PWM pulse width modulation 1032PXE preboot execution environment 1033QA quality assurance 1034QAM quadrature amplitude modulation 1035QAM quality assurance management 1036QBE query by example 1037QC quality control 1038QDI quasi delay insensitive 1039QOS quality of service 1040QVL qualified vendor list 1041R/O read only 1042R/W read/write 1043RA receiver address 1044RA remote assistance 1045RA resource affinity 1046RA router advertisement 1047RAD rapid application development 1048RAID redundant array of {independent,inexpensive} disks 1049RAM random access memory 1050RAS reliability, availability and serviceability 1051RAS remote access service 1052RAS restartable atomic sequence 1053RAS row address strobe 1054RBF radial basis function 1055RBT red-black tree 1056RC release candidate 1057RC remote control 1058RCS Revision Control System 1059RCS revision control system 1060RCU read, copy, update 1061RDB Rigid Disk Block 1062RDBMS relational database management system 1063RDF Resource Description Framework 1064RDM relational data model 1065RDMA remote direct memory access 1066RE regular expression 1067REST representational state transfer 1068RF radio frequency 1069RFI radio frequency interference 1070RFO request for ownership 1071RGB red green blue 1072RGBA red green blue alpha 1073RGMII reduced gigabit media independent interface 1074RH read hit 1075RHEL Red Hat Enterprise Linux 1076RHL Red Hat Linux 1077RIB routing information base 1078RIFF Resource Interchange File Format 1079RIP Routing Information Protocol 1080RIR regional Internet registry 1081RISC reduced instruction set {computer,computing} 1082RKM ROM Kernel Manual 1083RLE run length encoding 1084RLL run length limited 1085RLO right-to-left override 1086RM read miss 1087RMI remote method invocation 1088RMO Relaxed Memory Ordering 1089RMPM rapid memory power management 1090RMS root mean square 1091RMW read, modify, write 1092RNG random number generator 1093ROM read only memory 1094RPC remote procedure call 1095RPKI resource PKI 1096RPL requested privilege level 1097RPM revolutions per minute 1098RPN reverse Polish notation 1099RPVST Rapid Per-VLAN Spanning Tree 1100RR random replacement 1101RR round robin 1102RS relay station 1103RSA Rivest, Shamir, [and] Adleman 1104RSIP Realm Specific IP 1105RSN Robust Secure Network 1106RSS really simple syndication 1107RSS residual sum of squares 1108RSTP Rapid Spanning Tree Protocol 1109RT real time 1110RTC real time clock 1111RTC real time computing 1112RTF rich text format 1113RTL register transfer language 1114RTL resistor-transistor logic 1115RTL right to left 1116RTOS real time operating system 1117RTS request to send 1118RTT round trip time 1119RUP rational unified process 1120RW Rabin-Williams 1121RWM read-write memory 1122RX {receive,receiver} 1123S/PDIF Sony/Philips Digital Interface Format 1124SA security advisory 1125SA security association 1126SA source address 1127SA structured analysis 1128SAAS software as a service 1129SACD super audio compact disc 1130SAD security association database 1131SAL system abstraction layer 1132SAM serial access memory 1133SAM sum addressed memory 1134SAN storage area network 1135SAP service access point 1136SAPIC streamlined advanced programmable interrupt controller 1137SASD structured analysis, structured design 1138SASI Shugart Associates System Interface 1139SASL simple authentication [and] security layer 1140SATA serial advanced technology attachment 1141SB sound blaster 1142SBU standard build unit 1143SC store conditional 1144SCA source code analyzer 1145SCADA supervisory control and data acquisition 1146SCC single chip cloud 1147SCC source code control 1148SCCS Source Code Control System 1149SCI scalable coherent interface 1150SCI system control interrupt 1151SCM software configuration management 1152SCM source code management 1153SCM storage-class memory 1154SCP secure copy 1155SCSI Small Computer System Interface 1156SCTP Stream Control Transmission Protocol 1157SDI symbol deinterleave 1158SDK software development kit 1159SDL Simple Declarative Language 1160SDL Simple Direct-media Layer 1161SDLC {software,system,systems} development life cycle 1162SDRAM synchronous dynamic random access memory 1163SDT syntax-directed translation 1164SEGV segmentation violation 1165SEO search engine optimization 1166SFC sequential function chart 1167SFI simple firmware interface 1168SFI software fault isolation 1169SFTP SSH File Transfer Protocol 1170SFTP Serial File Transfer Protocol 1171SFTP Simple File Transfer Protocol 1172SGMII serial gigabit media independent interface 1173SGRAM synchronous graphics random access memory 1174SHA secure hash algorithm 1175SIDH supersingular isogeny Diffie-Hellman 1176SIEM security information and event management 1177SIFS short inter-frame space 1178SIMD single instruction, multiple data 1179SIMM single inline memory module 1180SIP Session Initiation Protocol 1181SIR signal-to-interference ratio 1182SIR slow infrared 1183SISD single instruction, single data 1184SLC single-level cell 1185SLDRAM synchronous-link dynamic random access memory 1186SLED single large expensive disk 1187SLI scalable link interface 1188SLI scan-line interleave 1189SLOC source lines of code 1190SLRU segmented LRU 1191SMA smart memory access 1192SMAF system management action field 1193SMAP Simple Mail Access Protocol 1194SMAP supervisor mode access prevention 1195SMART self-monitoring analysis and reporting technology 1196SMBIOS System Management BIOS 1197SMC system management controller 1198SMF single mode fiber 1199SMI structure of management information 1200SMI system management interrupt 1201SMM system management mode 1202SMP symmetric multiprocessing 1203SMT simultaneous multithreading 1204SMTP Simple Mail Transfer Protocol 1205SMU system management unit 1206SNAP Sub-Network Access Protocol 1207SNMP Simple Network Management Protocol 1208SNR signal-to-noise ratio 1209SOA service oriented architecture 1210SOAP Simple Object Access Protocol 1211SOC system on chip 1212SOF start of frame 1213SOH start of header 1214SOHO small office/home office 1215SOL serial over LAN 1216SP service pack 1217SP stack pointer 1218SPARC scalable processor architecture 1219SPARQL SPARQL Protocol and RDF Query Language 1220SPD security policy database 1221SPD serial presence detect 1222SPDIF Sony/Philips digital interface format 1223SPI serial peripheral interface 1224SPI stateful packet inspection 1225SPL system interrupt priority level 1226SPL spinlock 1227SPMD single process, multiple data 1228SPR special purpose register 1229SPT sectors per track 1230SQA software quality assurance 1231SQL Structured Query Language 1232SRAM static random access memory 1233SRC sample rate conversion 1234SS self-snoop 1235SS stack segment 1236SSA static single assignment 1237SSAP source service access point 1238SSB single-sideband modulation 1239SSD solid state drive 1240SSE streaming SIMD extensions 1241SSFDC solid state floppy disc card 1242SSH secure shell 1243SSI server side includes 1244SSID service set identifier 1245SSL secure sockets layer 1246SSP stack smashing protection 1247STC software thermal control 1248STD state transition diagram 1249STP Spanning Tree Protocol 1250STP shielded twisted pair 1251SUS Single Unix Specification 1252SUT system under test 1253SVG scalable vector graphics 1254SVGA Super Video Graphics Array 1255SVM secure virtual machine 1256SVM support vector machine 1257SVR System V Release 1258SVS Separate Virtual Space 1259SWF Shockwave Flash 1260SWIG simplified wrapper [and] interface generator 1261SYR symbol timing recovery 1262TA test assertion 1263TA transmitter address 1264TAI international atomic time 1265TAO track at once 1266TAOCP The Art of Computer Programming 1267TAP Test Anything Protocol 1268TAS test and set 1269TB terabyte 1270TCB trace capture buffer 1271TCB trusted computing base 1272TCC thermal control circuit 1273TCL tool command language 1274TCP Transmission Control Protocol 1275TCQ tagged command queueing 1276TDC time [to] digital converter 1277TDD test driven development 1278TDD time division duplex 1279TDM time division multiplexing 1280TDMA time division multiple access 1281TDOA time difference of arrival 1282TDP thermal design {point,power} 1283TECO Text Editor and Corrector 1284TFT thin film transistor 1285TFTP Trivial File Transfer Protocol 1286TIAS try it and see 1287TIFF tagged image file format 1288TITS try it to see 1289TK temporal key 1290TKIP Temporal Key Integrity Protocol 1291TLA top level aggregator 1292TLB translation lookaside buffer 1293TLD top level domain 1294TLS thread local storage 1295TLS transport layer security 1296TM Turing machine 1297TM thermal monitor 1298TMDS transition minimized differential signaling 1299TMO timeout 1300TOD time of day 1301TOS terms of service 1302TOS trusted operating system 1303TOS type of service 1304TP transaction processing 1305TPI tracks per inch 1306TPM transactions per minute 1307TPM trusted platform module 1308TPR task priority register 1309TPS transactions per second 1310TPS transmission parameters signaling 1311TR task register 1312TR token ring 1313TRL timing recovery loop 1314TRNG true random number generator 1315TS terminal services 1316TS time series 1317TS time stamp 1318TS transport stream 1319TSC time stamp counter 1320TSD time stamp disable 1321TSL test, set, lock 1322TSO time sharing option 1323TSO Total Store Ordering 1324TSP Time-Stamp Protocol 1325TSP Tunnel Setup Protocol 1326TSP time synchronization protocol 1327TSP traveling salesman problem 1328TSS task state segment 1329TTL time to live 1330TTL transistor-transistor logic 1331TTM translation table maps 1332TTY teletype 1333TUI {terminal,text-based,textual} user interface 1334TX {transmit out,transmitter} 1335TZ time zone 1336UAC user {access,account} control 1337UAF use-after-free 1338UART universal asynchronous receiver/transmitter 1339UAT user acceptance testing 1340UB undefined behavior 1341UC uncacheable 1342UCS uniform-cost search 1343UDMA ultra DMA 1344UDO ultra density optical 1345UDP User Datagram Protocol 1346UEFI unified extensible firmware interface 1347UFS Unix File System 1348UGA universal graphics adapter 1349UI unit interval 1350UI user interface 1351UID unique identifier 1352UID user identifier 1353UL upload 1354UMA uniform memory access 1355UMA upper memory area 1356UMB upper memory block 1357UML unified modeling language 1358UMPC ultra-mobile PC 1359UPNP universal plug and play 1360UPS uninterruptible power supply 1361URI uniform resource identifier 1362URL uniform resource locator 1363URN uniform resource name 1364USART universal synchronous/asynchronous receiver/transmitter 1365USB universal serial bus 1366USWC uncacheable speculative write combining 1367UT unit test 1368UTC coordinated universal time 1369UTP unshielded twisted pair 1370UUCP Unix-to-Unix Copy Protocol 1371UUID universally unique identifier 1372UUOC useless use of cat 1373UUT unit under test 1374UX user experience 1375VA vertical alignment 1376VA virtual address 1377VA volt-ampere 1378VAX virtual address extension 1379VB Visual Basic 1380VCA variable-gain amplifier 1381VCC common collector voltage 1382VCF voltage-controlled filter 1383VCM virtual channel memory 1384VCO voltage-controlled oscillator 1385VCS version control system 1386VESA Video Electronics Standards Association 1387VFO variable-frequency oscillator 1388VG volume group 1389VGA Video Graphics Array 1390VHDCI very high density cable interconnect 1391VID voltage level identifier 1392VIPT virtually indexed, physically tagged 1393VIVT virtually indexed, virtually tagged 1394VLAN virtual local area network 1395VLIW very long instruction word 1396VLSI very large scale integration 1397VLSM variable length subnet mask 1398VM virtual {machine,memory} 1399VME virtual mode extension 1400VMX vector multimedia extensions 1401VMX virtual machine extensions 1402VOD video on demand 1403VPN virtual private network 1404VR virtual reality 1405VRAM video random access memory 1406VRF virtual routing and forwarding 1407VRM voltage regulator module 1408VRRP Virtual Router Redundancy Protocol 1409VSTP VLAN Spanning Tree Protocol 1410VTP VLAN Trunking Protocol 1411W watt 1412W3C World Wide Web Consortium 1413WAN wide area network 1414WAP Wireless Application Protocol 1415WAP wireless access point 1416WDT watchdog timer 1417WEP Wired Equivalent Privacy 1418WFI wait for interrupt 1419WFQ weighted fair queuing 1420WH write hit 1421WIFI wireless fidelity 1422WLAN wireless local area network 1423WM write miss 1424WMI Windows Management Instrumentation 1425WOL Wake-on-LAN 1426WOM Wake-on-Modem 1427WOR Wake-on-Ring 1428WORM write once read many 1429WP WordPerfect 1430WP word processor 1431WP write protect 1432WPA Wi-Fi Protected Access 1433WPA2 Wi-Fi Protected Access II 1434WPS Wi-Fi Protected Setup 1435WRAM window random access memory 1436WS web services 1437WTC write through caching 1438WWAN wireless wide area network 1439WWW world wide web 1440WYSIWYG what you see is what you get 1441XBAR crossbar 1442XDMCP X Display Manager control protocol 1443XER XML encoding rules 1444XGA Extended Graphics Array 1445XIP execute in place 1446XML Extensible Markup Language 1447XOR exclusive or 1448XP extreme programming 1449XSI X/Open System Interface 1450XSL extensible stylesheet language 1451XSS cross site scripting 1452XT extended technology 1453XUL XML user interface language 1454YACC yet another compiler compiler 1455YAWPFAPR you are welcome; please file a problem report 1456YP Yellow Pages 1457YTD year to date 1458ZBR zone bit recording 1459ZFOD zero-filled on demand 1460ZIF zero insertion force 1461ZIFS zero insertion force socket 1462ZMA zone multicast address 1463