acronyms.comp revision 1.404
1$NetBSD: acronyms.comp,v 1.404 2025/03/17 14:07:44 jschauma Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABE attribute-based encryption 8ABI application binary interface 9ABNF augmented backus-naur form 10ABR available bit rate 11ABRT automatic bug reporting tool 12AC alternating current 13ACI adjacent channel interferer 14ACID atomicity, consistency, isolation, durability 15ACK Amsterdam compiler kit 16ACK acknowledgement 17ACL access control list 18ACL active current loop 19ACL asynchronous connection less 20ACP auxiliary control {process,program} 21ACPI advanced configuration and power interface 22ACS access control set 23ACU automatic calling unit 24ADB Apple desktop bus 25ADC analog [to] digital converter 26ADD acronym driven development 27ADDDC adaptive double DRAM device correction 28ADO active data objects 29ADP automatic data processing 30ADPCM adaptive differential pulse code modulation 31ADS alternate data stream 32ADSL asymmetric digital subscriber line 33ADT abstract data type 34AEAD authenticated encryption with associated data 35AEDC advanced error detection and correction 36AER advanced error reporting 37AES Advanced Encryption Standard 38AFP Apple Filing Protocol 39AFS Andrew File System 40AGC automatic gain control 41AGP accelerated graphics port 42AI analog input 43AI artificial intelligence 44AL access list 45AL active link 46ALE address latch enable 47ALPN application-layer protocol negotiation 48ALS ambient light sensor 49ALSA advanced Linux sound architecture 50ALU arithmetic and logical unit 51ALUA asymmetric logical unit access 52AM access method 53AM alignment mask 54AM amplitude modulation 55AMD Advanced Micro Devices Inc 56AMDD Agile model-driven development 57AMI alternate mark inversion 58AMP asymmetric multiprocessing 59AMQP advanced message queuing protocol 60AMT active management technology 61AN Arabic number 62ANR application not responding 63ANSI American National Standards Institute 64AO analog output 65AOC add-on card 66AOL Alert-on-LAN 67AOS add or subtract 68AOT ahead of time 69AP access point 70AP application processor 71APEI ACPI platform error interface 72APFS Apple file system 73API application programming interface 74APIC advanced programmable interrupt controller 75APIPA automatic private IP addressing 76APM advanced power management 77APM application performance management 78APT advanced persistent threat 79APU accelerated processing unit 80AQM active queue management 81ARAT always running APIC timer 82ARC Advanced RISC Computing 83ARC adaptive replacement cache 84ARC automatic reference counting 85ARM Advanced RISC Machines 86ARP Address Resolution Protocol 87ARPA Advanced Research Projects Agency 88ARQ automatic repeat request 89ARR address range register 90ARU audio response unit 91AS autonomous system 92ASA Adaptive Security Appliance 93ASAN Address Sanitizer 94ASC advanced smart cache 95ASCII American Standard Code for Information Interchange 96ASD agile software development 97ASE advanced software environment 98ASF alert standard format 99ASIC application-specific integrated circuit 100ASK amplitude shift keying 101ASLR address space layout randomization 102ASN autonomous system number 103ASP active server pages 104ASP auxiliary storage pool 105ASPM active state power management 106ASQ automated software quality 107ASR Apple software restore 108ASR address space register 109AST abstract syntax tree 110AST asynchronous system trap 111AT access time 112AT advanced technology 113ATA advanced technology attachment 114ATAPI advanced technology attachment packet interface 115ATC address translation cache 116ATF ARM trusted firmware 117ATF automated testing framework 118ATM asynchronous transfer mode 119ATX advanced technology extended 120AV anti virus 121AVB audio video bridging 122AVL Adelson-Velsky-Landis 123AVX advanced vector extensions 124AWDL Apple wireless direct link 125BA byte align 126BAL basic assembly language 127BAR base address register 128BBS bulletin board system 129BCC blind carbon copy 130BCD binary coded decimal 131BCH boot console handler 132BCR byte count register 133BCS base configuration space 134BD baud 135BDD binary decision diagram 136BDI bit deinterleave 137BDUF big design up front 138BEDO burst extended data output 139BER basic encoding rules 140BER bit error {rate,ratio} 141BERT boot error record table 142BFD bidirectional forwarding detection 143BFD binary {file,format} descriptor 144BFKL big fscking kernel lock 145BFS breadth-first search 146BFT binary file transfer 147BGA ball grid array 148BGP Border Gateway Protocol 149BGPSEC BGP Security 150BIND Berkeley Internet Name Daemon 151BIOS Basic Input/Output System 152BIOS built-in operating system 153BIST built-in self-test 154BIU bus interface unit 155BKDG BIOS and kernel developer's guide 156BLAS basic linear algebra subprograms 157BLC back light control 158BLE Bluetooth low energy 159BLOB binary large object 160BM bus master 161BMC baseboard management controller 162BMIC bus master interface controller 163BMP basic multilingual plane 164BMP bitmap image file 165BN boundary neutral 166BNF Backus-Naur form 167BO binary output 168BOF beginning of file 169BOM beginning of message 170BOM byte order mark 171BP base pointer 172BP boot processor 173BPB BIOS parameter block 174BPDU bridge protocol data unit 175BPF Berkeley Packet Filter 176BPI bits per inch 177BPM business process modelling 178BPS bits per second 179BPSK binary phase shift keying 180BQP bounded-error quantum polynomial time 181BQS Berkeley quality software 182BRE basic regular expression 183BS backspace 184BS binary sequence 185BSA basic service area 186BSD Berkeley Software Distribution 187BSDP Boot Service Discovery Protocol 188BSF bit scan forward 189BSOD blue screen of death 190BSP binary space partition 191BSP board support package 192BSP bootstrap processor 193BSR bit scan reverse 194BSS basic service set 195BSS block started by symbol 196BSSID basic service set identifier 197BT BitTorrent 198BT Bluetooth 199BT bit test 200BTB branch target buffer 201BTB board-to-board 202BTC bit test [and] complement 203BTM bus transport mechanism 204BTR bit test [and] reset 205BTS bit test [and] set 206BTS bug tracking system 207BUAG big ugly ASCII graphic 208BW bandwidth 209BWM block-write mode 210CA certificate authority 211CAC cryptographic access control 212CACLS change access control lists 213CAD computer-aided design 214CAM computer assisted manufacturing 215CAM conditional access module 216CAM content addressable memory 217CAN controller area network 218CARP Common Address Redundancy Protocol 219CAS column address strobe 220CAS compare and swap 221CAS computer algebra system 222CASE computer aided software engineering 223CAU control access unit 224CAV constant angular velocity 225CBC cipher block chaining 226CBR constant bit rate 227CC carbon copy 228CCC Chaos Computer Club 229CCD charge coupled device 230CCI co-channel interferer 231CCNUMA cache-coherent non-uniform memory access 232CCTL command completion time limit 233CD cache disable 234CD compact disc 235CDDA compact disc digital audio 236CDL compiler description language 237CDMA code division multiple access 238CDN content delivery network 239CDP Cisco Discovery Protocol 240CDRAM cache dynamic random access memory 241CE customer edge 242CER canonical encoding rules 243CERT computer emergency response team 244CET control flow enforcement technology 245CF compact flash 246CFB cipher feedback 247CFG context-free grammar 248CFG control-flow graph 249CFI control-flow integrity 250CFRG Crypto Forum Research Group (IRTF) 251CG control gate 252CGA Color Graphics Adapter 253CGI common gateway interface 254CGN Carrier-Grade NAT 255CHAP Challenge-Handshake Authentication Protocol 256CHFS chip file system 257CHS cylinder/head/sector 258CI continuous integration 259CI {common,component} interface 260CIA confidentiality, integrity, availability 261CIDR Classless Inter-Domain Routing 262CIF common intermediate format 263CIFS Common Internet File System 264CIL common intermediate language 265CIR carrier-to-interference ratio 266CIS contact image sensor 267CISC complex instruction set {computer,computing} 268CJK Chinese, Japanese, [and] Korean 269CLF common log format 270CLI command line interface 271CLI common language infrastructure 272CLR common language runtime 273CLS common language specification 274CLTT closed loop thermal throttling 275CLUT color look-up table 276CLV constant linear velocity 277CM configuration management 278CMA concert multithread architecture 279CMC certificate management over CMS 280CMC chassis management controller 281CMC corrected machine check 282CMI control {management,method} interface 283CMOS complementary metal-oxide-semiconductor 284CMP chip multi-processing 285CMS content management system 286CMS cryptographic message syntax 287CMS {configuration,content,course} management system 288CMYK cyan magenta yellow black 289CN {common,canonical} name 290CNA CVE Numbering Authority 291CNC computer numerical control 292CNR carrier-to-noise ratio 293COA change of authority 294COF current operating frequency 295COFDM coded orthogonal frequency division multiplexing 296COFF common object file format 297COM component object model 298COM computer on module 299COMA cache-only memory architecture 300CORBA common object request broker architecture 301COS class of service 302COW copy-on-write 303CP continuous pilot 304CPA chosen-plaintext attack 305CPB core performance boost 306CPC central processor complex 307CPC cpu performance counters 308CPE common phase error 309CPE common platform enumeration 310CPER common platform error record 311CPG clock pulse generator 312CPI cycles per instruction 313CPL current privilege level 314CPLD complex programmable logic device 315CPP C preprocessor 316CPS characters per second 317CPS continuation-passing style 318CPT command pass through 319CPU central processing unit 320CR carriage return 321CRC cyclic redundancy check 322CRDT conflict-free replicated data type 323CRL carrier recovery loop 324CRLF carriage return line feed 325CRQC cryptanalytically relevant quantum computer 326CRT cathode ray tube 327CRTP curiously recurring template pattern 328CRUD create, read, update, and delete 329CS cable select 330CS chip select 331CS code segment 332CS computer science 333CSDL {common,conceptual} schema definition language 334CSI channel state information 335CSI common system interface 336CSIRT computer security incident response team 337CSMA carrier sense multiple access 338CSMA/CA carrier sense multiple access with collision avoidance 339CSMA/CD carrier sense multiple access with collision detection 340CSP communicating sequential processes 341CSP constrain satisfaction problems 342CSP content security policy 343CSP cryptographic service provider 344CSPM cloud security posture management 345CSR control [and] status registers 346CSRF cross-site request forgery 347CSRG Computer Systems Research Group 348CSS cascading style sheets 349CST common spanning tree 350CSU C start up 351CSV comma-separated values 352CTF compact c type format 353CTM close to metal 354CTR counter [mode] 355CTS clear to send 356CTS common type system 357CUA common user access 358CUT coordinated universal time 359CV control voltage 360CVE common vulnerabilities and exposures 361CVS Concurrent Versions System 362CVSS Common Vulnerability Scoring System 363DA destination address 364DAA distributed application architecture 365DAAP digital audio access protocol 366DAB digital audio broadcasting 367DAC digital [to] analog converter 368DAC discretionary access control 369DAD duplicate address detection 370DAE deterministic authenticated encryption 371DANE DNS-based Authentication of Named Entities 372DAO disk at once 373DAP Directory Access Protocol 374DAT digital audio tape 375DAT dynamic acceleration technology 376DB database 377DBA database administrator 378DBA dynamic bandwidth allocation 379DBB data bus buffer 380DBC design by contract 381DBL dynamic buffer limiting 382DBMS database management system 383DBS database server 384DC data center 385DC direct current 386DCC Direct Client-to-Client 387DCC direct cable connect 388DCD data carrier detect 389DCE data control equipment 390DCE distributed computing environment 391DCIM data center infrastructure management 392DCIM digital camera images 393DCL Digital Command Language 394DCOM distributed component object model 395DCOP Desktop COmmunication Protocol 396DCS data collection systems 397DCT discrete cosine transform 398DCU data cache unit 399DDC display data channel 400DDE dynamic data exchange 401DDI device drivers interface 402DDK device driver kit 403DDL data description language 404DDR double data rate 405DDS direct digital sound 406DDWG Digital Display Working Group 407DE debugging extensions 408DE desktop environment 409DEA data encryption algorithm 410DEC Digital Equipment Corporation 411DEK data encryption key 412DEP data execution prevention 413DER distinguished encoding rules 414DES Data Encryption Standard 415DF don't fragment 416DFA deterministic finite automaton 417DFC data flow control 418DFS depth first search 419DFS distributed file system 420DFSAN Data Flow Sanitizer 421DFT diagnostic function test 422DFT discrete Fourier transform 423DFZ default-free zone 424DGEMM double precision general matrix multiply 425DGL data generation language 426DH Diffie-Hellman 427DHCP Dynamic Host Configuration Protocol 428DIA dedicated Internet access 429DIB device independent bitmap 430DIFS distributed inter-frame space 431DIMM dual inline memory module 432DIRT design in real time 433DKI driver/kernel interface 434DL diode logic 435DL discrete logarithm 436DL download 437DLCI data link connection identifier 438DLE data link escape 439DLL dynamic link library 440DLNA digital living network alliance 441DLP discrete logarithm problem 442DMA direct memory access 443DMB data memory barrier (Arm) 444DMI desktop management interface 445DMS document management system 446DMT discrete multitone modulation 447DMU data management layer 448DNARD Digital network appliance reference design 449DND drag and drop 450DNLC directory name lookup cache 451DNS Domain Name System 452DNSBL Domain Name System Block List 453DNSSEC DNS Security Extensions 454DOE distributed object environment 455DOF data over fibre 456DOH DNS over HTTPS 457DOM document object model 458DOQ DNS over QUIC 459DOS denial of service 460DOS disk operating system 461DOT DNS over TLS 462DP DisplayPort 463DPAA data path acceleration architecture 464DPC deferred procedure call 465DPCM differential pulse code modulation 466DPD dead peer detection 467DPDK data plane development kit 468DPI deep packet inspection 469DPI dots per inch 470DPL descriptor privilege level 471DPS Display PostScript 472DPST display power savings technology 473DRAAS disaster recovery as a service 474DRAM dynamic random access memory 475DRBG deterministic random bit generator 476DRI direct rendering infrastructure 477DRM digital rights management 478DRM direct rendering manager 479DRN Discovery of Network-designated Resolvers 480DRRS display refresh rate switching 481DS debug store 482DS differentiated services 483DS delegation signer 484DS9000 DeathStation 9000 485DS9K DeathStation 9000 486DSA digital signature algorithm 487DSAP destination service access point 488DSB data synchronization barrier (Arm) 489DSB double-sideband modulation 490DSCP differentiated services code point 491DSDT differentiated system descriptor table 492DSF device special file 493DSL dataset and snapshot layer 494DSL digital subscriber line 495DSL domain specific language 496DSLAM digital subscriber line access multiplexer 497DSN delivery status notification 498DSO dynamic shared object 499DSP digital signal processor 500DSSS direct sequence spread spectrum 501DTB device tree blob 502DTC device tree compiler 503DTD document type definition 504DTE data terminal equipment 505DTE dumb terminal emulator 506DTL diode-transistor logic 507DTLS datagram transport layer security 508DTS device tree source 509DTS digital thermal sensor 510DUT device under test 511DVB digital video broadcasting 512DVCS distributed version control system 513DVD digital versatile disc 514DVFS dynamic voltage and frequency scaling 515DVI Digital Visual Interface 516DVI device independent 517DVR digital video recorder 518DWARF Debugging With Attributed Record Formats 519E-XER extended XML encoding rules 520EABI embedded-application binary interface 521EAI Email Address Internationalization 522EAI Enterprise Application Integration 523EAP Extensible Authentication Protocol 524EAPOL EAP over Lan 525EAV entity-attribute-value model 526EAV ethernet audio/video bridging 527EBCDIC Extended Binary Coded Decimal Interchange Code 528EBDA Extended BIOS Data Area 529EBNF extended backus-naur form 530EBR extended boot record 531EC elliptic curve 532ECC elliptic curve cryptography 533ECC error correction code 534ECDH elliptic curve Diffie-Hellman 535ECDL elliptic curve discrete logarithm 536ECDLP elliptic curve discrete logarithm problem 537ECDSA elliptic curve digital signature algorithm 538EDDSA Edwards-curve digital signature algorithm 539ECL emitter-coupled logic 540ECN explicit congestion notification 541ECP enhanced capability port 542ECS enhanced chip set 543ECS extended configuration space 544EDAC error detection and correction 545EDAT enhanced dynamic acceleration technology 546EDGE explicit data graph execution 547EDID extended display identification data 548EDO extended data out 549EDS electronical data sheet 550EDSAC electronic delay storage automatic calculator 551EDVAC electronic discrete variable automatic computer 552EEE embrace, extend, extinguish 553EEE energy efficient ethernet 554EEPROM electrically erasable programmable read only memory 555EFI extensible firmware interface 556EFL emitter follower logic 557EFM eight to fourteen modulation 558EFS extent file system 559EGA Enhanced Graphics Adapter 560EGP exterior gateway protocol 561EH extension header 562EIDE enhanced IDE 563EINJ error injection table 564EISA extended industry standard architecture 565ELF executable and linking format 566ELS entry level system 567EMACS Editor MACroS 568EMI electro-magnetic interference 569EMP electro-magnetic pulse 570EMR electro-magnetic radiation 571ENIAC electronic numerical integrator and computer 572EOF end of file 573EOI end of interrupt 574EOIS end of interactive support 575EOL end of life 576EOL end of line 577EOT end of transmission 578EPIC explicitly parallel instruction computing 579EPP enhanced parallel port 580EPP extensible provisioning protocol (RFC5730) 581EPRML extended partial response, maximum likelihood 582EPROM erasable programmable read only memory 583EPSS Exploit Prediction Scoring System 584EPT extended page tables 585ERC error recovery control 586ERD emergency recovery disk 587ERD entity relationship diagram 588ERE extended regular expression 589ERST error record serialization table 590ESAN Efficiency Sanitizer 591ESB enterprise service bus 592ESDI enhanced small disk interface 593ESDRAM enhanced synchronous dynamic random access memory 594ESI enclosure services interface 595ESS electronic switching system 596ESS extended service set 597ESSID extended service set identifier 598EST enhanced speedstep 599ETL extract, transform, load 600EU execution unit 601EULA end user license agreement 602EdDSA Edwards curve digital signature algorithm 603FAT file allocation table 604FBRAM frame buffer random access memory 605FCIF full common intermediate format 606FCL fiber channel loop 607FCS frame check sequence 608FDC floppy disk controller 609FDD floppy disk drive 610FDDI fiber distributed data interface 611FDE full disk encryption 612FDT flattened device tree 613FEA finite element analysis 614FEC forward error correction 615FET field-effect transistor 616FF finite field 617FF form feed 618FFDH finite-field Diffie-Hellman 619FFH functional fixed hardware 620FFI foreign function interface 621FFM focus follows mouse 622FFS Fast File System 623FFS find first set 624FFT fast Fourier transform 625FG floating gate 626FHRP first hop redundancy protocol 627FHSS frequency hop spread spectrum 628FID frequency identifier 629FIFO first in, first out 630FILO first in, last out 631FIPS Federal Information Processing Standards 632FIR fast infrared 633FLOPS floating [point] operations per second 634FLOSS free/libre/open source software 635FM frequency modulation 636FMR false match rate 637FOSS free/open source software 638FPGA field programmable gate array 639FPM fast page mode 640FPR floating point register 641FPU floating point unit 642FQDN fully qualified domain name 643FRR false rejection rate 644FRR Free Range Routing 645FRU field replaceable unit 646FS file system 647FSB front side bus 648FSCK file system check 649FSF Free Software Foundation 650FSK frequency shift keying 651FSM finite-state machine 652FTA fault tree analysis 653FTL flash translation layer 654FTP File Transfer Protocol 655FTPS File Transfer Protocol Secure 656FTTH fiber to the home 657FUS fast user switching 658FWH firmware hub 659FWS folding white space 660GAL generic array logic 661GARP generic attribute registration protocol 662GAS generic address structure 663GC garbage collector 664GCC GNU Compiler Collection 665GCM Galois counter mode 666GCR group-coded recording 667GDI Graphics Device Interface 668GDT global descriptor table 669GDT (block) group descriptor table 670GECOS general comprehensive operating supervisor 671GEM graphics environment manager 672GEM graphics execution manager 673GEMM general matrix multiply 674GENA general event notification architecture 675GHC Glasgow Haskell compiler 676GHES generic hardware error source 677GIC generic interrupt controller 678GID group identifier 679GIF graphics interchange format 680GLBP gateway load balancing protocol 681GMCH graphics and memory controller hub 682GNU GNU's Not Unix 683GOP graphics output protocol 684GOT global offset table 685GPE general purpose event 686GPF general protection fault 687GPG GNU Privacy Guard 688GPL [GNU] General Public License 689GPR general purpose register 690GPS generalized processor sharing 691GPT GUID partition table 692GPU graphics processing unit 693GR golden ratio 694GRE generic routing encapsulation 695GRO generic receive offload 696GSI global system interrupt 697GSO generic send offload 698GUA global unicast address 699GUI graphical user interface 700GUID globally unique identifier 701GUS Gravis UltraSound 702GVFS git virtual file system 703HA high availability 704HAL hardware abstraction layer 705HAT hashed array tree 706HATEOAS hypermedia as the engine of application state 707HBA host bus adapter 708HBS hash-based signature 709HCC Home Cable Computer 710HCCA Home Cable Computer Adaptor 711HCF halt and catch fire 712HCI host controller interface 713HCI human-computer interaction 714HCL hardware compatibility list 715HDCP High-bandwidth Digital Content Protection 716HDD hard disk drive 717HDL hardware description language 718HDMI High-Definition Multimedia Interface 719HDTV high-definition television 720HECI host embedded controller interface 721HEST hardware error source table 722HEVC high efficiency video coding 723HF high frequency 724HFM highest frequency mode 725HFS hierarchical file system 726HID human interface device 727HKDF HMAC-based key derivation function 728HKP HTTP Keyserver Protocol 729HLE hardware lock elision (Intel) 730HLL high-level language 731HMA high memory area 732HMI human-machine interface 733HNDL harvest now, decrypt later 734HOOD hierarchical object oriented design 735HOTP HMAC-based one time password 736HP Hewlett-Packard 737HPC high performance computing 738HPD hot plug detection 739HPET high precision event timer 740HPKE hybrid public key encryption 741HQC Hamming Quasi-Cyclic 742HSM hardware security module 743HSM hierarchical storage management 744HSRP hot standby router protocol 745HT hyper-threading 746HTC hardware thermal control 747HTCC high temperature co-fired ceramic 748HTML HyperText Markup Language 749HTT hyper-threading technology 750HTTP Hypertext Transfer Protocol 751HTTPS Hypertext Transfer Protocol Secure 752HVDS High-Voltage Differential Signaling 753HVM hardware virtual machine 754HWASAN Hardware-assisted Address Sanitizer 755HZ Hertz 756I2O intelligent input/output 757IA information assurance 758IAAS infrastructure as a service 759IAB Internet Architecture Board 760IANA Internet Assigned Numbers Authority 761IBC iterated block cipher 762IBM International Business Machines 763IBPI international blinking pattern interpretation 764IBS instruction based sampling 765IBSS independent basic service set 766IBT indirect branch tracking 767IC integrated circuit 768ICA independent computer architecture 769ICACLS integrity control access control lists 770ICB Internet Citizen's Band 771ICE in-circuit emulator 772ICE internal compiler error 773ICH I/O controller hub 774ICMP Internet Control Message Protocol 775ICT information and communications technology 776ICW initialization command word 777IDA Intel dynamic acceleration 778IDCMP Intuition direct communication message port 779IDCT inverse discrete cosine transform 780IDE integrated development environment 781IDE integrated drive electronics 782IDPS intrusion detection [and] prevention system 783IDRP inter-domain routing protocol 784IDS intrusion detection system 785IDT interrupt descriptor table 786IE Internet Explorer 787IEC International Electrotechnical Commission 788IEEE Institute of Electrical and Electronics Engineers 789IESG Internet Engineering Steering Group 790IETF Internet Engineering Task Force 791IF intermediate frequency 792IFCM isochronous flow control mode 793IFF Interchange File Format 794IFS internal field separator 795IGD Internet gateway device 796IGMP Internet Group Management Protocol 797IGP interior gateway protocol 798IHV independent hardware vendor 799IKE Internet key exchange 800IKM input keying material 801ILM internal loopback mode 802ILOM integrated lights-out management 803ILP instruction level parallelism 804IM instant messaging 805IMAP Internet Message Access Protocol 806IMC integrated memory controller 807IMCR interrupt mode configuration register 808IME input method editor 809IMR interrupt mask register 810IMS information management system 811IMSI international mobile subscriber identity 812INCITS InterNational Committee for Information Technology Standards 813INODE index node 814IO input/output 815IOCTL input/output control 816IOM input/output managers 817IOMMU input/output memory management unit 818IOT Internet of Things 819IP Internet Protocol 820IP intellectual property 821IPC instructions per cycle 822IPC interprocess communication 823IPCF interprocess communication facility 824IPE integrated programming environment 825IPI intelligent peripheral interface 826IPI interprocessor interrupt 827IPL Initial Program Load 828IPL Interrupt Priority Level 829IPMB Intelligent Platform Management Bus 830IPMI Intelligent Platform Management Interface 831IPNG Internet Protocol, Next Generation 832IPS in-plane switching 833IPS intrusion prevention system 834IPSEC Internet Protocol Security 835IR intermediate representation 836IRC Internet Relay Chat 837IRDA infrared data association 838IRDP ICMP Router Discovery Protocol 839IRQ interrupt request 840IRQL interrupt request level 841IRR interrupt request register 842IRTF Internet Research Task Force 843IS information system 844ISA industry standard architecture 845ISA instruction set architecture 846ISB instruction synchronization barrier (Arm) 847ISDN integrated services digital network 848ISE instant secure erase 849ISI inter-symbol interference 850ISL initial system load 851ISM industrial, scientific, [and] medical 852ISMS information system management system 853ISN initial serial number 854ISO International Standards Organization 855ISOC Internet Society 856ISP Internet service provider 857ISR in-service register 858ISR interrupt service routine 859IST internal spanning tree 860IST interrupt stack table 861ISV independent software vendor 862IT information technology 863ITB Intel Turbo Boost 864ITIL information technology infrastructure library 865ITP in-target probe 866ITSM IT service management 867IV initialization vector 868IVT interrupt vector table 869JBOD just a bunch of disks 870JCL Job Control Language 871JFET junction [gate] field-effect transistor 872JIT just in time 873JPEG Joint Photographic Experts Group 874JRE Java Runtime Environment 875JSON JavaScript Object Notation 876JTAG joint test action group 877KASAN Kernel Address Sanitizer 878KASLR kernel address space layout randomization 879KB keyboard 880KB kilobyte 881KBD keyboard 882KBD kilobaud 883KCS keyboard controller style 884KDF key derivation function 885KEK key encryption key 886KEM key encapsulation mechanism 887KLOC thousand lines of code 888KMS kernel-mode setting 889KPI kernel programming interface 890KSK key signing key 891KVA kernel virtual address 892KVM kernel virtual machine 893KVM kernel virtual memory 894KVM keyboard, video, [and] mouse 895L2CAP link layer control and adaptation protocol 896LAG link aggregation group 897LAMP Linux Apache MySQL {Perl,PHP,Python} 898LAN local area network 899LAPIC local advanced programmable interrupt controller 900LAR load access rights 901LBA logical block addressing 902LBNF labeled backus-naur form 903LBS location-based service 904LCD liquid crystal display 905LCP link control protocol 906LDA local delivery agent 907LDAP Lightweight Directory Access Protocol 908LDR light-dependent resistor 909LDT local descriptor table 910LE logical extent 911LED light emitting diode 912LELL low energy link layer 913LER label edge router 914LF line feed 915LF low frequency 916LFM lowest frequency mode 917LFN long file names 918LFO low-frequency oscillation 919LFS log-structured file system 920LFU least frequently used 921LHP loop heat pipe 922LIF logical interchange format 923LIFO last in, first out 924LILO LInux LOader 925LILO last in, last out 926LINT local interrupt 927LIR local Internet registry 928LISP LISt Processor 929LISP Locator/ID Separation Protocol 930LKM {Linux,loadable} kernel module 931LKML Linux kernel mailing list 932LL load linked 933LL/SC load linked/store conditional 934LLC logical link control 935LLD low-level design 936LLDD low-level design document 937LLDP link layer discovery protocol 938LLF low level format 939LLMNR link-local multicast name resolution 940LLVM Low Level Virtual Machine 941LM long mode 942LMCE local machine check exception 943LMI local management interface 944LMM link management mode 945LMP link management protocol 946LMS Leighton-Micali Signature 947LNO loop nest optimization 948LOC lines of code 949LOM lights-out management 950LPC low pin count 951LPE Linux performance events 952LPS local positioning system 953LRC longitudinal redundancy check 954LRM left-to-right mark 955LRO Large Receive Offload 956LRO left-to-right override 957LRU least recently used 958LS link state 959LSAN Leak Sanitizer 960LSB Linux standards base 961LSB least significant {bit,byte} 962LSI large scale integration 963LSL load segment limit 964LSM log structured merge 965LSN Large Scale NAT 966LSN log sequence number 967LSO large send offload 968LSR label switch router 969LTCC low temperature co-fired ceramic 970LTO linear tape-open 971LTO link time optimization 972LTR left to right 973LTR letter(-sized paper) 974LTR load task register 975LTS long term support 976LUA Lua Uppercase Accident 977LUN logical unit number 978LV logical volume 979LVDS Low-Voltage Differential Signaling 980LVM logical volume management 981LVT local vector table 982LWP light-weight process 983LZSS Lempel Ziv Storer Szymanski 984LZW Lempel Ziv Welch 985MAB MAC authentication bypass 986MAC mandatory access control 987MAC message authentication {check,code} 988MAC {media,medium} access control 989MADT multiple APIC descriptor table 990MAMR microwave-assisted magnetic recording 991MB megabyte 992MBA multi-boot agent 993MBR master boot record 994MBS megabits per second 995MC memory controller 996MCA MicroChannel architecture 997MCA machine check architecture 998MCC multiversion concurrency control 999MCE machine check exception 1000MCGA Multi-Color Graphics Array 1001MCH memory controller hub 1002MCLAG multi-chassis link aggregation group 1003MCM multi-chip module 1004MCQ memory controlled queue 1005MD MiniDisc 1006MD machine-dependent 1007MD-SAL model-driven service abstraction layer 1008MDA Monochrome Display Adapter 1009MDA mail delivery agent 1010MDC Management Data Clock 1011MDI Medium Dependent Interface 1012MDI-X Medium Dependent Interface Crossover 1013MDIO Management Data Input/Output 1014MDMX MIPS Digital Media eXtension 1015MDRAM multibank dynamic random access memory 1016MDS microarchitectural data sampling 1017MESI modified, exclusive, shared, invalid 1018MFC Microsoft Foundation Classes 1019MFC merge from current 1020MFM modified frequency modulation 1021MFU most frequently used 1022MGCP media gateway control protocol 1023MHU message handling unit 1024MI machine interface 1025MI machine-independent 1026MIB management information base 1027MIC message integrity {check,code} 1028MID mobile Internet device 1029MIDI musical instrument digital interface 1030MIF management information format 1031MII media independent interface 1032MIM man in the middle 1033MIMD multiple instruction, multiple data 1034MIME Multipurpose Internet Mail Extensions 1035MIMO multiple input multiple output 1036MIPS Microprocessor without Interlocked Pipeline Stages 1037MIPS million instructions per second 1038MISD multiple instruction, single data 1039MIT Massachusetts Institute of Technology 1040MITM man in the middle 1041ML machine language 1042ML machine learning 1043ML mailing list 1044ML markup language 1045ML maximum likelihood 1046ML-KEM module-lattice based key-encapsulation mechanism 1047MLAG multi-chassis link aggregation group 1048MLC multi-level cell 1049MLD multicast listener discovery 1050MLHP micro loop heat pipe 1051MLIR multi-level intermediate representation 1052MLO MMC loader 1053MMC multi-media card 1054MMF multi-mode fiber 1055MMIC monolithic microwave integrated circuit 1056MMIO memory mapped input/output 1057MMORPG massive multiplayer online role playing game 1058MMRP multiple MAC registration protocol 1059MMU memory management unit 1060MMX matrix math extension 1061MMX multimedia extension 1062MMX multiple math extension 1063MO magneto-optical 1064MOESI modified, owned, exclusive, shared, invalid 1065MOF maximum operating frequency 1066MOSFET metal-oxide-semiconductor field-effect transistor 1067MOSI modified, owned, shared, invalid 1068MP multi-platform 1069MP multiplayer 1070MP {multiprocessing,multiprocessor} 1071MPEG moving picture experts group 1072MPI message passing interface 1073MPLS Multiprotocol Label Switching 1074MPP massively parallel processor 1075MPS memory pool system 1076MPS multiprocessor specification 1077MQTT Message Queuing Telemetry Transport 1078MR modem ready 1079MRO method resolution order 1080MRP multiple registration protocol 1081MRU most recently used 1082MS Microsoft 1083MSAN Memory Sanitizer 1084MSB most significant {bit,byte} 1085MSC message sequence chart 1086MSE mean square error 1087MSF minutes seconds frames 1088MSI message signaled interrupt 1089MSI modified, shared, invalid 1090MSR {machine state,model-specific} register 1091MSS maximum segment size 1092MSTP Multiple Spanning Tree Protocol 1093MT machine translation 1094MTA mail transfer agent 1095MTBF mean time between failures 1096MTP media transfer protocol 1097MTRR memory type range register 1098MTTF mean time to failure 1099MTU maximum transmission unit 1100MUA mail user agent 1101MUD multi-user domain 1102MVCC multiversion concurrency control 1103MVR multicast VLAN registration 1104MVRP multiple VLAN registration protocol 1105MWE module width encoding 1106MX mail exchange 1107MZM Majorana zero mode 1108NACK negative acknowledgement 1109NAK negative acknowledgement 1110NAN neighbor awareness networking 1111NAN not a number 1112NAPT Network Address Port Translation 1113NAS network attached storage 1114NAT network address translation 1115NAV network allocation vector 1116NC numerical control 1117NC-SI network controller sideband interface 1118NCO numerically-controlled oscillator 1119NCP Network Control Protocol 1120NCQ native command queuing 1121NCSI network connectivity status indicator 1122ND neighbor discovery 1123NDFA nondeterministic finite automaton 1124NDIS network driver interface specification 1125NE numeric error 1126NEWS Network extensible Window System 1127NFA nondeterministic finite automaton 1128NFC near-field communication 1129NFCI no functional change intended 1130NFS network file system 1131NFV network function virtualization 1132NHACP NABU HCCA Application Communication Protocol 1133NIA next instruction address 1134NIC network information center 1135NIC network interface card 1136NIDS network intrusion detection system 1137NIKE Non-Interactive Key Exchange 1138NIP network interface protocol 1139NIPR non-classified IP router (network) 1140NIPS network intrusion prevention system 1141NIS network information service 1142NIST National Institute of Standards and Technology 1143NLS native language support 1144NMI non-maskable interrupt 1145NMR nonce-misuse resistance 1146NNTP Network News Transfer Protocol 1147NOC network operations center 1148NOP no operation 1149NOS network operating system 1150NP nondeterministic polynomial time 1151NRND not recommended for new designs 1152NRZ non-return to zero 1153NSA National Security Agency 1154NSA nation-state adversary 1155NSA no such agency 1156NTA negative trust anchor 1157NTM non-deterministic Turing machine 1158NTP Network Time Protocol 1159NUMA non-uniform memory access 1160NURBS non-uniform rational basis spline 1161NVD National Vulnerability Database 1162NVMM NetBSD Virtual Machine Monitor 1163NVMM non-volatile main memory 1164NVRAM non-volatile random access memory 1165NW not write-through 1166NX no execute 1167OAEP optimal asymmetric encryption padding 1168OAM operations, administration, and {management,maintenance} 1169OBO off by one 1170OBOE off by one error 1171OCL object constraint language 1172OCR optical character recognition 1173ODBC Open Database Connectivity 1174ODCM on-demand clock modulation 1175ODE offline device environment 1176ODI open data-link interface 1177ODM object data manager 1178ODMR on-demand mail relay 1179ODT on-die termination 1180OEM original equipment manufacturer 1181OFB output feedback 1182OFDM orthogonal frequency division multiplexing 1183OFET organic field-effect transistor 1184OLAP online analytical processing 1185OLE object linking and embedding 1186OLTP online transaction processing 1187ONCE on-{chip,circuit} emulation 1188ONFI open nand flash interface 1189OO OpenOffice 1190OO object oriented 1191OOB out of band 1192OOE out of order execution 1193OOM out of memory 1194OOO OpenOffice.org 1195OOP object oriented programming 1196OOPS object oriented programming systems 1197OOSE object oriented software engineering 1198OPM operations per minute 1199OPS operations per second 1200OQL Object Query Language 1201ORB object request broker 1202ORM object-relational mapping 1203OS operating system 1204OSD object-based storage device 1205OSD open source definition 1206OSF open software foundation 1207OSI Open Source Initiative 1208OSI open systems interconnection 1209OSPF open shortest path first 1210OSPM OS power management 1211OSS open sound system 1212OSS open source software 1213OSVW operating system visible workarounds 1214OTP one time password 1215OTP open telecom platform 1216OU organizational unit 1217OUI organizationally unique identifier 1218OWASP Open Web Application Security Project 1219OWL Web Ontology Language 1220P2P PCI to PCI 1221P2P peer to peer 1222PA phase accumulator 1223PA physical address 1224PAAS platform as a service 1225PAC phase-amplitude converter 1226PAE physical address extension 1227PAGP port aggregation protocol 1228PAL phase alternating line 1229PAL programmable array logic 1230PAM pluggable authentication modules 1231PAM pulse amplitude modulation 1232PAP password authentication protocol 1233PAT page attribute table 1234PAT port address translation 1235PATA parallel ATA 1236PAX portable archive exchange 1237PBE pending break encoding 1238PBE programming by example 1239PBKDF password-based key derivation function 1240PBR partition boot record 1241PBX private branch exchange 1242PC personal computer 1243PC program counter 1244PCB Protocol Control Block 1245PCB printed circuit board 1246PCB process control block 1247PCBC propagating cipher block chaining 1248PCC Portable C Compiler 1249PCD page-level cache disable 1250PCE path computation element 1251PCE performance-monitor counter enable 1252PCEP Path Computation Element Protocol 1253PCH platform controller hub 1254PCI peripheral component interconnect 1255PCM phase change memory 1256PCM pulse code modulation 1257PCMCIA Personal Computer Memory Card International Association 1258PCP Port Control Protocol 1259PD public domain 1260PDA personal digital assistant 1261PDA pushdown automaton 1262PDAG propositional directed acyclic graph 1263PDB power distribution board 1264PDF portable document format 1265PDM pulse-duration modulation 1266PDN pull-down network 1267PDP page {descriptor,directory} page 1268PDS product data sheet 1269PDU protocol data unit 1270PE portable executable 1271PE protection enable 1272PE provider edge 1273PEAP Protected EAP 1274PECI platform environment control interface 1275PED PIN Entry Device 1276PEP protocol extension protocol 1277PER packed encoding rules 1278PFS perfect forward secrecy 1279PGAS partitioned global address space 1280PGE page global enable 1281PGO profile guided optimization 1282PGP Pretty Good Privacy 1283PHB PCI host bridge 1284PHP PHP: Hypertext Preprocessor 1285PIC performance instrumentation counters 1286PIC position independent code 1287PIC programmable interrupt controller 1288PICNIC problem in chair, not in computer 1289PID process id 1290PIE position independent executable 1291PIL Priority Interrupt Level 1292PIM personal information manager 1293PIM platform-independent model 1294PIO programmed input/output 1295PIPT physically indexed, physically tagged 1296PIQ prefetch input queue 1297PIR private information retrieval 1298PIT programmable interrupt timer 1299PIV personal identity verification 1300PIX Private Internet eXchange 1301PKCS public-key cryptography standards 1302PKE public key encryption 1303PKI public key infrastructure 1304PLC programmable logic controller 1305PLD programmable logic device 1306PLL phase locked loop 1307PLRU pseudo LRU 1308PLT procedure linkage table 1309PLTM package level thermal management 1310PM power management 1311PM {phase,pulse} modulation 1312PMC performance monitoring counters 1313PME power management event 1314PMEG page map entry group 1315PMI performance monitoring infrastructure 1316PMI platform management interrupt 1317PMIC power management integrated circuit 1318PMIO port-mapped input/output 1319PMT photo-multiplier tube 1320PMU performance monitoring units 1321PMU power management unit 1322PNG portable network graphics 1323PNP plug and play 1324POE power over ethernet 1325POF probability of failure 1326POP Post Office Protocol 1327POP power on password 1328POR plan of record 1329POSIX Portable Operating System Interface [for Unix] 1330POST power on self test 1331POTS plain old telephone system 1332POWER Performance Optimization With Enhanced RISC 1333POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1334PP pair programming 1335PPB PCI [to] PCI bridge 1336PPC Power Performance Computing 1337PPC PowerPC 1338PPI pixels per inch 1339PPM pages per minute 1340PPP Point-to-Point Protocol 1341PPPOA Point-to-Point Protocol over ATM 1342PPPOE Point-to-Point Protocol over Ethernet 1343PPR processor programming reference 1344PPT powerpoint 1345PPT punched paper tape 1346PPU physics processing unit 1347PQC post-quantum cryptography 1348PRAM Parameter RAM 1349PRBS pseudorandom bit sequence 1350PRF pseudorandom function [family] 1351PRG pseudorandom generator 1352PRML partial response, maximum likelihood 1353PRN pseudorandom {noise,number} 1354PRNG pseudorandom number generator 1355PROM programmable read only memory 1356PRP pseudorandom permutation 1357PRU Programmable Realtime Unit 1358PS PostScript 1359PSD power spectral density 1360PSE page size extensions 1361PSK phase shift keying 1362PSK pre-shared key 1363PSTN public switched telephone network 1364PSW program status word 1365PTE page table entry 1366PTLA pseudo top level aggregator 1367PTP page table page 1368PTV perceived target value 1369PU processing unit 1370PUC personal unblocking code 1371PUN physical unit number 1372PV physical volume 1373PVC permanent virtual circuit 1374PVG physical volume group 1375PVI protected-mode virtual interrupt 1376PVRST Per-VLAN rapid spanning tree 1377PVST Per-VLAN Spanning Tree 1378PWM pulse width modulation 1379PXE preboot execution environment 1380QA quality assurance 1381QAM quadrature amplitude modulation 1382QAM quality assurance management 1383QBE query by example 1384QC quality control 1385QCIF quarter common intermediate format 1386QDI quasi delay insensitive 1387QOI quality of implementation 1388QOI quick order interface 1389QOS quality of service 1390QPU quantum processing unit 1391QUIC Quick UDP Internet Connections 1392QVL qualified vendor list 1393R/O read only 1394R/W read/write 1395RA receiver address 1396RA remote assistance 1397RA resource affinity 1398RA router advertisement 1399RAD rapid application development 1400RADIUS remote authentication dial-in user service 1401RAID redundant array of {independent,inexpensive} disks 1402RAII resource acquisition is initialization 1403RAM random access memory 1404RAS reliability, availability and serviceability 1405RAS remote access service 1406RAS restartable atomic sequence 1407RAS row address strobe 1408RAT register allocation table 1409RAT remote access trojan 1410RBF radial basis function 1411RBL real-time blackhole list 1412RBL reputation block list 1413RBNF routing backus-naur form 1414RBT red-black tree 1415RC release candidate 1416RC remote control 1417RC run commands 1418RCS Revision Control System 1419RCU read, copy, update 1420RDB Rigid Disk Block 1421RDBMS relational database management system 1422RDF Resource Description Framework 1423RDM relational data model 1424RDMA remote direct memory access 1425RDP remote desktop protocol 1426RDRAM Rambus DRAM 1427RE regular expression 1428REPL read, evaluate, print, loop 1429REST representational state transfer 1430RF radio frequency 1431RFB remote frame buffer 1432RFI radio frequency interference 1433RFO request for ownership 1434RFU reserved for future use 1435RGB red green blue 1436RGBA red green blue alpha 1437RGMII reduced gigabit media independent interface 1438RH read hit 1439RHEL Red Hat Enterprise Linux 1440RHL Red Hat Linux 1441RIB routing information base 1442RIFF Resource Interchange File Format 1443RIP Raster Image Processor 1444RIP Routing Information Protocol 1445RIPR releasable IP router (network) 1446RIR regional Internet registry 1447RISC reduced instruction set {computer,computing} 1448RKM ROM Kernel Manual 1449RLE run length encoding 1450RLL run length limited 1451RLO right-to-left override 1452RM read miss 1453RMCP Remote Management Control Protocol 1454RMI remote method invocation 1455RMO Relaxed Memory Ordering 1456RMPM rapid memory power management 1457RMS root mean square 1458RMW read, modify, write 1459RNG random number generator 1460ROA route origin authorization 1461ROM read only memory 1462ROP return-oriented programming 1463RPC remote procedure call 1464RPG Report Program Generator 1465RPKI resource PKI 1466RPL requested privilege level 1467RPM revolutions per minute 1468RPN reverse Polish notation 1469RPVST Rapid Per-VLAN Spanning Tree 1470RR random replacement 1471RR resource record 1472RR round robin 1473RRSIG resource record signature 1474RS relay station 1475RSA Rivest, Shamir, [and] Adleman 1476RSC Receive Segment Coalescing 1477RSIP Realm Specific IP 1478RSN Robust Secure Network 1479RSS Receive Side Scaling 1480RSS really simple syndication 1481RSS residual sum of squares 1482RSTP Rapid Spanning Tree Protocol 1483RT real time 1484RTC real time clock 1485RTC real time computing 1486RTF rich text format 1487RTL register transfer language 1488RTL resistor-transistor logic 1489RTL right to left 1490RTM restricted transactional memory (Intel) 1491RTOS real time operating system 1492RTP Real-time Transport Protocol 1493RTS request to send 1494RTT round trip time 1495RTTI run-time type information 1496RUP rational unified process 1497RW Rabin-Williams 1498RWM read-write memory 1499RX {receive,receiver} 1500S/PDIF Sony/Philips Digital Interface Format 1501SA security advisory 1502SA security association 1503SA source address 1504SA structured analysis 1505SAAS software as a service 1506SABRE Semi-automated business research environment 1507SACD super audio compact disc 1508SAD security association database 1509SAF-TE SCSI accessed fault-tolerant enclosure 1510SAGE Semi-automated ground environment 1511SAL {service,system} abstraction layer 1512SAM serial access memory 1513SAM sum addressed memory 1514SAML security assertion markup language 1515SAN storage area network 1516SAP service access point 1517SAPIC streamlined advanced programmable interrupt controller 1518SASD structured analysis, structured design 1519SASI Shugart Associates System Interface 1520SASL simple authentication [and] security layer 1521SATA serial advanced technology attachment 1522SAX simple API for XML 1523SB sound blaster 1524SBI supervisor binary interface 1525SBOM Software Bill of Materials 1526SBSA server base system architecture 1527SBU standard build unit 1528SC store conditional 1529SCA source code analyzer 1530SCADA supervisory control and data acquisition 1531SCC single chip cloud 1532SCC source code control 1533SCCP skinny call control protocol 1534SCCS Source Code Control System 1535SCI scalable coherent interface 1536SCI system control interrupt 1537SCIM smart common input method 1538SCM software configuration management 1539SCM source code management 1540SCM storage-class memory 1541SCO synchronous connection orientated 1542SCP secure copy 1543SCP system control processor 1544SCPI system control and power interface 1545SCSI Small Computer System Interface 1546SCT Signed Certificate Timestamp 1547SCTP Stream Control Transmission Protocol 1548SDDC software defined data center 1549SDEI software delegated exception interface 1550SDI symbol deinterleave 1551SDK software development kit 1552SDL Simple Declarative Language 1553SDL Simple Direct-media Layer 1554SDLC {software,system,systems} development life cycle 1555SDN software defined networking 1556SDP Session Description Protocol 1557SDR software defined radio 1558SDRAM synchronous dynamic random access memory 1559SDS software defined storage 1560SDT syntax-directed translation 1561SEA synchronous external abort 1562SED self-encrypting drive 1563SED stream editor 1564SEGV segmentation violation 1565SEMB serial ATA enclosure management bridge 1566SEO search engine optimization 1567SES SCSI enclosure services 1568SFC sequential function chart 1569SFI simple firmware interface 1570SFI software fault isolation 1571SFP small form-factor pluggable 1572SFTP SSH File Transfer Protocol 1573SFTP Serial File Transfer Protocol 1574SFTP Simple File Transfer Protocol 1575SGI Silicon Graphics, Inc 1576SGI software generated interrupt 1577SGMII serial gigabit media independent interface 1578SGPIO serial general purpose input/output 1579SGRAM synchronous graphics random access memory 1580SHA secure hash algorithm 1581SICP structure and interpretation of computer programs 1582SIDH supersingular isogeny Diffie-Hellman 1583SIEM security information and event management 1584SIF source input format 1585SIFS short inter-frame space 1586SIM subscriber identity module 1587SIMD single instruction, multiple data 1588SIMM single inline memory module 1589SIP Session Initiation Protocol 1590SIPR secret IP router (network) 1591SIR signal-to-interference ratio 1592SIR slow infrared 1593SIRT security incident response team 1594SISD single instruction, single data 1595SIV synthetic intialization vector 1596SLAAC stateless address auto-configuration 1597SLC single-level cell 1598SLDRAM synchronous-link dynamic random access memory 1599SLED single large expensive disk 1600SLI scalable link interface 1601SLI scan-line interleave 1602SLIC system license internal code 1603SLOC source lines of code 1604SLRU segmented LRU 1605SMA smart memory access 1606SMAF system management action field 1607SMAP Simple Mail Access Protocol 1608SMAP supervisor mode access prevention 1609SMART self-monitoring analysis and reporting technology 1610SMB Server Message Block 1611SMB system management bus 1612SMBIOS System Management BIOS 1613SMC system management controller 1614SMD storage module device 1615SMEP supervisor mode execution protection 1616SMF single mode fiber 1617SMI structure of management information 1618SMI system management interrupt 1619SMM system management mode 1620SMP serial management protocol 1621SMP symmetric multiprocessing 1622SMR shingled magnetic recording 1623SMR state machine replication 1624SMT simultaneous multithreading 1625SMTP Simple Mail Transfer Protocol 1626SMU system management unit 1627SNA systems network architecture 1628SNAP Sub-Network Access Protocol 1629SNIA Storage Networking Industry Association 1630SNMP Simple Network Management Protocol 1631SNR signal-to-noise ratio 1632SOA service oriented architecture 1633SOAP Simple Object Access Protocol 1634SOC security operations center 1635SOC system on chip 1636SOF start of frame 1637SOH start of header 1638SOHO small office/home office 1639SOL serial over LAN 1640SOM system on module 1641SP service pack 1642SP stack pointer 1643SPA storage pool allocator 1644SPAN switched port analyzer 1645SPARC scalable processor architecture 1646SPARQL SPARQL Protocol and RDF Query Language 1647SPD security policy database 1648SPD serial presence detect 1649SPDIF Sony/Philips digital interface format 1650SPI serial peripheral interface 1651SPI stateful packet inspection 1652SPIR standard portable intermediate representation 1653SPL secondary program loader 1654SPL spinlock 1655SPL system interrupt priority level 1656SPMD single process, multiple data 1657SPR special purpose register 1658SPT sectors per track 1659SQA software quality assurance 1660SQCIF sub quarter common intermediate format 1661SQL Structured Query Language 1662SRAM static random access memory 1663SRC sample rate conversion 1664SRP SCSI RDMA protocol 1665SRR shaped round robin 1666SRTP Secure Real-time Transport Protocol 1667SS self-snoop 1668SS stack segment 1669SSA static single assignment 1670SSAP source service access point 1671SSB single-sideband modulation 1672SSB speculative store bypass 1673SSBB speculative store bypass barrier (Arm) 1674SSBD speculative store bypass disable (Intel) 1675SSC spread spectrum clock 1676SSD solid state drive 1677SSE streaming SIMD extensions 1678SSFDC solid state floppy disc card 1679SSH secure shell 1680SSI server side includes 1681SSID service set identifier 1682SSL secure sockets layer 1683SSP stack smashing protection 1684SSRF server-side request forgery 1685SSTP secure socket tunneling protocol 1686STC software thermal control 1687STD state transition diagram 1688STEK session ticket encryption key 1689STM software transactional memory 1690STOMP Streaming Text Oriented Messaging Protocol 1691STP Spanning Tree Protocol 1692STP shielded twisted pair 1693STRG spanning tree root guard 1694SUN Stanford University Network 1695SUS Single Unix Specification 1696SUT system under test 1697SVC switched virtual circuit 1698SVG scalable vector graphics 1699SVGA Super Video Graphics Array 1700SVI {switch,switched} virtual interface 1701SVM secure virtual machine 1702SVM support vector machine 1703SVR System V Release 1704SVS Separate Virtual Space 1705SWF Shockwave Flash 1706SWIG simplified wrapper [and] interface generator 1707SYR symbol timing recovery 1708TA test assertion 1709TA transmitter address 1710TAA transactional asynchronous abort (Intel) 1711TACACS terminal access controller access-control system 1712TAI international atomic time 1713TAO track at once 1714TAOCP The Art of Computer Programming 1715TAP Test Anything Protocol 1716TAS test and set 1717TB terabyte 1718TBNF transitional backus-naur form 1719TCB trace capture buffer 1720TCB trusted computing base 1721TCC thermal control circuit 1722TCL tool command language 1723TCP Transmission Control Protocol 1724TCQ tagged command queueing 1725TDC time [to] digital converter 1726TDD test-driven development 1727TDD time division duplex 1728TDM time division multiplexing 1729TDMA time division multiple access 1730TDOA time difference of arrival 1731TDP thermal design {point,power} 1732TDR time-domain reflectometry 1733TECO Text Editor and Corrector 1734TEE Trusted Execution Environment 1735TFT thin film transistor 1736TFTP Trivial File Transfer Protocol 1737TIAS try it and see 1738TIFF tagged image file format 1739TITS try it to see 1740TK temporal key 1741TKIP Temporal Key Integrity Protocol 1742TLA top level aggregator 1743TLB translation lookaside buffer 1744TLD top level domain 1745TLER time-limited error recovery 1746TLI transport layer interface 1747TLS thread local storage 1748TLS transport layer security 1749TLV type, length, value 1750TM Turing machine 1751TM thermal monitor 1752TMDS transition minimized differential signaling 1753TMG transmogrifier 1754TMO timeout 1755TOD time of day 1756TOE TCP offload engine 1757TOFU trust on first use 1758TOS terms of service 1759TOS trusted operating system 1760TOS type of service 1761TOTP time-based one time password 1762TP transaction processing 1763TPI tracks per inch 1764TPM transactions per minute 1765TPM trusted platform module 1766TPR task priority register 1767TPS transactions per second 1768TPS transmission parameters signaling 1769TR task register 1770TR token ring 1771TRL timing recovery loop 1772TRNG true random number generator 1773TS terminal services 1774TS time series 1775TS time stamp 1776TS transport stream 1777TSAN Thread Sanitizer 1778TSC time stamp counter 1779TSD time stamp disable 1780TSDB time series database 1781TSL test, set, lock 1782TSO TCP segmentation offload 1783TSO Total Store Ordering 1784TSO time sharing option 1785TSP Time-Stamp Protocol 1786TSP Tunnel Setup Protocol 1787TSP time synchronization protocol 1788TSP traveling salesman problem 1789TSS task state segment 1790TSV tab-separated values 1791TSX transaction synchronization extensions (Intel) 1792TTL time to live 1793TTL transistor-transistor logic 1794TTM translation table maps 1795TTY teletype 1796TU translation unit 1797TUI {terminal,text-based,textual} user interface 1798TX {transmit out,transmitter} 1799TXG transaction group 1800TZ time zone 1801UAC user {access,account} control 1802UAF use-after-free 1803UART universal asynchronous receiver/transmitter 1804UAT user acceptance testing 1805UB undefined behavior 1806UBSAN Undefined Behavior Sanitizer 1807UC uncacheable 1808UCS unified computing system 1809UCS uniform-cost search 1810UCS universal coded character set 1811UDI uniform driver interface 1812UDMA ultra DMA 1813UDO ultra density optical 1814UDP User Datagram Protocol 1815UDS Unix Domain Socket 1816UEFI unified extensible firmware interface 1817UFO UDP fragmentation offload 1818UFS Unix File System 1819UGA universal graphics adapter 1820UI unit interval 1821UI user interface 1822UICC universal integrated circuit card 1823UID unique identifier 1824UID user identifier 1825UL upload 1826ULA unique local address 1827UMA uniform memory access 1828UMA upper memory area 1829UMB upper memory block 1830UML unified modeling language 1831UMPC ultra-mobile PC 1832UPNP universal plug and play 1833UPS uninterruptible power supply 1834URI uniform resource identifier 1835URL uniform resource locator 1836URN uniform resource name 1837USART universal synchronous/asynchronous receiver/transmitter 1838USB universal serial bus 1839USWC uncacheable speculative write combining 1840UT unit test 1841UTC coordinated universal time 1842UTF unicode transformation formats 1843UTP unshielded twisted pair 1844UTS UNIX time-sharing 1845UUCP Unix-to-Unix Copy Protocol 1846UUID universally unique identifier 1847UUOC useless use of cat 1848UUT unit under test 1849UX user experience 1850VA vertical alignment 1851VA virtual address 1852VA volt-ampere 1853VAX virtual address extension 1854VB Visual Basic 1855VBR volume boot record 1856VCA variable-gain amplifier 1857VCC common collector voltage 1858VCCP virtual chassis control protocol 1859VCF voltage-controlled filter 1860VCM virtual channel memory 1861VCO voltage-controlled oscillator 1862VCP virtual chassis port 1863VCS version control system 1864VDP vulnerability disclosure policy 1865VDPAU Video Decode and Presentation API for Unix 1866VES virtual execution system 1867VESA Video Electronics Standards Association 1868VFO variable-frequency oscillator 1869VFS virtual file system 1870VG volume group 1871VGA Video Graphics Array 1872VHD virtual hard disk 1873VHDCI very high density cable interconnect 1874VID {VLAN,voltage level} identifier 1875VIM Vi IMproved 1876VIPT virtually indexed, physically tagged 1877VIVT virtually indexed, virtually tagged 1878VLAN virtual local area network 1879VLD variable-length decoding 1880VLIW very long instruction word 1881VLSI very large scale integration 1882VLSM variable length subnet mask 1883VM virtual {machine,memory} 1884VME virtual mode extension 1885VMX vector multimedia extensions 1886VMX virtual machine extensions 1887VNC virtual network computing 1888VNI virtual network identifier 1889VOD video on demand 1890VPD vital product data 1891VPN virtual private network 1892VPWS virtual private wire service 1893VR virtual reality 1894VRAM video random access memory 1895VRF virtual routing and forwarding 1896VRM voltage regulator module 1897VROC Virtual RAID On CPU 1898VRRP Virtual Router Redundancy Protocol 1899VSTP VLAN Spanning Tree Protocol 1900VTEP VXLAN tunnel endpoint 1901VTP VLAN Trunking Protocol 1902VXFS Veritas file system 1903VXLAN virtual extensible LAN 1904VXVM Veritas volume manager 1905W watt 1906W3C World Wide Web Consortium 1907WAFL write anywhere file layout 1908WAMP Web Application Messaging Protocol 1909WAN wide area network 1910WAP Wireless Application Protocol 1911WAP wireless access point 1912WDDM Windows Display Driver Model 1913WDM Wavelength Division Multiplexing 1914WDM Windows Driver Model 1915WDT watchdog timer 1916WEP Wired Equivalent Privacy 1917WFI wait for interrupt 1918WFQ weighted fair queuing 1919WH write hit 1920WHEA Windows hardware error architecture 1921WIFI wireless fidelity 1922WLAN wireless local area network 1923WM write miss 1924WMF Windows meta file 1925WMI Windows Management Instrumentation 1926WOL Wake-on-LAN 1927WOM Wake-on-Modem 1928WOR Wake-on-Ring 1929WORM write once read many 1930WP WordPerfect 1931WP word processor 1932WP write protect 1933WPA Wi-Fi Protected Access 1934WPA2 Wi-Fi Protected Access II 1935WPAD web proxy auto-discovery protocol 1936WPS Wi-Fi Protected Setup 1937WRAM window random access memory 1938WS web services 1939WTC write through caching 1940WTD weighted tail drop 1941WWAN wireless wide area network 1942WWW world wide web 1943WYSIAYG what you see is all you get 1944WYSIWYG what you see is what you get 1945XBAR crossbar 1946XDMCP X Display Manager control protocol 1947XER XML encoding rules 1948XGA Extended Graphics Array 1949XHR XMLHttpRequest 1950XIP execute in place 1951XML Extensible Markup Language 1952XMSS eXtended Merkle Signature Scheme 1953XNA XNA's not acronymed 1954XNS Xerox network systems 1955XOF eXtendable-Output Function 1956XOR exclusive or 1957XP extreme programming 1958XSI X/Open System Interface 1959XSL extensible stylesheet language 1960XSLT extensible stylesheet language transformations 1961XSS cross site scripting 1962XT extended technology 1963XTACACS extended terminal access controller access-control system 1964XTI X/Open transport interface 1965XUL XML user interface language 1966YACC yet another compiler compiler 1967YAML YAML ain't markup language 1968YANG yet another next generation 1969YAWPFAPR you are welcome; please file a problem report 1970YP Yellow Pages 1971YTD year to date 1972ZAP ZFS attribute processor 1973ZBR zone bit recording 1974ZFOD zero-filled on demand 1975ZFS zettabyte file system 1976ZIF zero insertion force 1977ZIFS zero insertion force socket 1978ZIL ZFS intent log 1979ZMA zone multicast address 1980ZOI zero one infinity 1981ZOI zone of influence 1982ZPL ZFS Posix layer 1983ZSK zone signing key 1984ZVOL ZFS Volume 1985