acronyms.comp revision 1.398
1$NetBSD: acronyms.comp,v 1.398 2025/01/29 20:34:30 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 250CG control gate 251CGA Color Graphics Adapter 252CGI common gateway interface 253CGN Carrier-Grade NAT 254CHAP Challenge-Handshake Authentication Protocol 255CHFS chip file system 256CHS cylinder/head/sector 257CI continuous integration 258CI {common,component} interface 259CIA confidentiality, integrity, availability 260CIDR Classless Inter-Domain Routing 261CIF common intermediate format 262CIFS Common Internet File System 263CIL common intermediate language 264CIR carrier-to-interference ratio 265CIS contact image sensor 266CISC complex instruction set {computer,computing} 267CJK Chinese, Japanese, [and] Korean 268CLF common log format 269CLI command line interface 270CLI common language infrastructure 271CLR common language runtime 272CLS common language specification 273CLTT closed loop thermal throttling 274CLUT color look-up table 275CLV constant linear velocity 276CM configuration management 277CMA concert multithread architecture 278CMC certificate management over CMS 279CMC chassis management controller 280CMC corrected machine check 281CMI control {management,method} interface 282CMOS complementary metal-oxide-semiconductor 283CMP chip multi-processing 284CMS content management system 285CMS cryptographic message syntax 286CMS {configuration,content,course} management system 287CMYK cyan magenta yellow black 288CN {common,canonical} name 289CNA CVE Numbering Authority 290CNC computer numerical control 291CNR carrier-to-noise ratio 292COA change of authority 293COF current operating frequency 294COFDM coded orthogonal frequency division multiplexing 295COFF common object file format 296COM component object model 297COM computer on module 298COMA cache-only memory architecture 299CORBA common object request broker architecture 300COS class of service 301COW copy-on-write 302CP continuous pilot 303CPA chosen-plaintext attack 304CPB core performance boost 305CPC central processor complex 306CPC cpu performance counters 307CPE common phase error 308CPE common platform enumeration 309CPER common platform error record 310CPG clock pulse generator 311CPI cycles per instruction 312CPL current privilege level 313CPLD complex programmable logic device 314CPP C preprocessor 315CPS characters per second 316CPS continuation-passing style 317CPT command pass through 318CPU central processing unit 319CR carriage return 320CRC cyclic redundancy check 321CRDT conflict-free replicated data type 322CRL carrier recovery loop 323CRLF carriage return line feed 324CRQC cryptanalytically relevant quantum computer 325CRT cathode ray tube 326CRTP curiously recurring template pattern 327CRUD create, read, update, and delete 328CS cable select 329CS chip select 330CS code segment 331CS computer science 332CSDL {common,conceptual} schema definition language 333CSI channel state information 334CSI common system interface 335CSIRT computer security incident response team 336CSMA carrier sense multiple access 337CSMA/CA carrier sense multiple access with collision avoidance 338CSMA/CD carrier sense multiple access with collision detection 339CSP communicating sequential processes 340CSP constrain satisfaction problems 341CSP content security policy 342CSP cryptographic service provider 343CSPM cloud security posture management 344CSR control [and] status registers 345CSRF cross-site request forgery 346CSRG Computer Systems Research Group 347CSS cascading style sheets 348CST common spanning tree 349CSU C start up 350CSV comma-separated values 351CTF compact c type format 352CTM close to metal 353CTR counter [mode] 354CTS clear to send 355CTS common type system 356CUA common user access 357CUT coordinated universal time 358CV control voltage 359CVE common vulnerabilities and exposures 360CVS Concurrent Versions System 361CVSS Common Vulnerability Scoring System 362DA destination address 363DAA distributed application architecture 364DAAP digital audio access protocol 365DAB digital audio broadcasting 366DAC digital [to] analog converter 367DAC discretionary access control 368DAD duplicate address detection 369DAE deterministic authenticated encryption 370DANE DNS-based Authentication of Named Entities 371DAO disk at once 372DAP Directory Access Protocol 373DAT digital audio tape 374DAT dynamic acceleration technology 375DB database 376DBA database administrator 377DBA dynamic bandwidth allocation 378DBB data bus buffer 379DBC design by contract 380DBL dynamic buffer limiting 381DBMS database management system 382DBS database server 383DC data center 384DC direct current 385DCC Direct Client-to-Client 386DCC direct cable connect 387DCD data carrier detect 388DCE data control equipment 389DCE distributed computing environment 390DCIM data center infrastructure management 391DCIM digital camera images 392DCL Digital Command Language 393DCOM distributed component object model 394DCOP Desktop COmmunication Protocol 395DCS data collection systems 396DCT discrete cosine transform 397DCU data cache unit 398DDC display data channel 399DDE dynamic data exchange 400DDI device drivers interface 401DDK device driver kit 402DDL data description language 403DDR double data rate 404DDS direct digital sound 405DDWG Digital Display Working Group 406DE debugging extensions 407DE desktop environment 408DEA data encryption algorithm 409DEC Digital Equipment Corporation 410DEK data encryption key 411DEP data execution prevention 412DER distinguished encoding rules 413DES Data Encryption Standard 414DF don't fragment 415DFA deterministic finite automaton 416DFC data flow control 417DFS depth first search 418DFS distributed file system 419DFSAN Data Flow Sanitizer 420DFT diagnostic function test 421DFT discrete Fourier transform 422DFZ default-free zone 423DGEMM double precision general matrix multiply 424DGL data generation language 425DH Diffie-Hellman 426DHCP Dynamic Host Configuration Protocol 427DIA dedicated Internet access 428DIB device independent bitmap 429DIFS distributed inter-frame space 430DIMM dual inline memory module 431DIRT design in real time 432DKI driver/kernel interface 433DL diode logic 434DL discrete logarithm 435DL download 436DLCI data link connection identifier 437DLE data link escape 438DLL dynamic link library 439DLNA digital living network alliance 440DLP discrete logarithm problem 441DMA direct memory access 442DMB data memory barrier (Arm) 443DMI desktop management interface 444DMS document management system 445DMT discrete multitone modulation 446DMU data management layer 447DNARD Digital network appliance reference design 448DND drag and drop 449DNLC directory name lookup cache 450DNS Domain Name System 451DNSBL Domain Name System Block List 452DNSSEC DNS Security Extensions 453DOE distributed object environment 454DOF data over fibre 455DOH DNS over HTTPS 456DOM document object model 457DOQ DNS over QUIC 458DOS denial of service 459DOS disk operating system 460DOT DNS over TLS 461DP DisplayPort 462DPAA data path acceleration architecture 463DPC deferred procedure call 464DPCM differential pulse code modulation 465DPD dead peer detection 466DPDK data plane development kit 467DPI deep packet inspection 468DPI dots per inch 469DPL descriptor privilege level 470DPS Display PostScript 471DPST display power savings technology 472DRAAS disaster recovery as a service 473DRAM dynamic random access memory 474DRBG deterministic random bit generator 475DRI direct rendering infrastructure 476DRM digital rights management 477DRM direct rendering manager 478DRN Discovery of Network-designated Resolvers 479DRRS display refresh rate switching 480DS debug store 481DS differentiated services 482DS9000 DeathStation 9000 483DS9K DeathStation 9000 484DSA digital signature algorithm 485DSAP destination service access point 486DSB data synchronization barrier (Arm) 487DSB double-sideband modulation 488DSCP differentiated services code point 489DSDT differentiated system descriptor table 490DSF device special file 491DSL dataset and snapshot layer 492DSL digital subscriber line 493DSL domain specific language 494DSLAM digital subscriber line access multiplexer 495DSN delivery status notification 496DSO dynamic shared object 497DSP digital signal processor 498DSSS direct sequence spread spectrum 499DTB device tree blob 500DTC device tree compiler 501DTD document type definition 502DTE data terminal equipment 503DTE dumb terminal emulator 504DTL diode-transistor logic 505DTLS datagram transport layer security 506DTS device tree source 507DTS digital thermal sensor 508DUT device under test 509DVB digital video broadcasting 510DVCS distributed version control system 511DVD digital versatile disc 512DVFS dynamic voltage and frequency scaling 513DVI Digital Visual Interface 514DVI device independent 515DVR digital video recorder 516DWARF Debugging With Attributed Record Formats 517E-XER extended XML encoding rules 518EABI embedded-application binary interface 519EAI Email Address Internationalization 520EAI Enterprise Application Integration 521EAP Extensible Authentication Protocol 522EAPOL EAP over Lan 523EAV entity-attribute-value model 524EAV ethernet audio/video bridging 525EBCDIC Extended Binary Coded Decimal Interchange Code 526EBDA Extended BIOS Data Area 527EBNF extended backus-naur form 528EBR extended boot record 529EC elliptic curve 530ECC elliptic curve cryptography 531ECC error correction code 532ECDH elliptic curve Diffie-Hellman 533ECDL elliptic curve discrete logarithm 534ECDLP elliptic curve discrete logarithm problem 535ECDSA elliptic curve digital signature algorithm 536EDDSA Edwards-curve digital signature algorithm 537ECL emitter-coupled logic 538ECN explicit congestion notification 539ECP enhanced capability port 540ECS enhanced chip set 541ECS extended configuration space 542EDAC error detection and correction 543EDAT enhanced dynamic acceleration technology 544EDGE explicit data graph execution 545EDID extended display identification data 546EDO extended data out 547EDS electronical data sheet 548EDSAC electronic delay storage automatic calculator 549EDVAC electronic discrete variable automatic computer 550EEE embrace, extend, extinguish 551EEE energy efficient ethernet 552EEPROM electrically erasable programmable read only memory 553EFI extensible firmware interface 554EFL emitter follower logic 555EFM eight to fourteen modulation 556EFS extent file system 557EGA Enhanced Graphics Adapter 558EGP exterior gateway protocol 559EH extension header 560EIDE enhanced IDE 561EINJ error injection table 562EISA extended industry standard architecture 563ELF executable and linking format 564ELS entry level system 565EMACS Editor MACroS 566EMI electro-magnetic interference 567EMP electro-magnetic pulse 568EMR electro-magnetic radiation 569ENIAC electronic numerical integrator and computer 570EOF end of file 571EOI end of interrupt 572EOIS end of interactive support 573EOL end of life 574EOL end of line 575EOT end of transmission 576EPIC explicitly parallel instruction computing 577EPP enhanced parallel port 578EPP extensible provisioning protocol (RFC5730) 579EPRML extended partial response, maximum likelihood 580EPROM erasable programmable read only memory 581EPSS Exploit Prediction Scoring System 582EPT extended page tables 583ERC error recovery control 584ERD emergency recovery disk 585ERD entity relationship diagram 586ERE extended regular expression 587ERST error record serialization table 588ESAN Efficiency Sanitizer 589ESB enterprise service bus 590ESDI enhanced small disk interface 591ESDRAM enhanced synchronous dynamic random access memory 592ESI enclosure services interface 593ESS electronic switching system 594ESS extended service set 595ESSID extended service set identifier 596EST enhanced speedstep 597ETL extract, transform, load 598EU execution unit 599EULA end user license agreement 600EdDSA Edwards curve digital signature algorithm 601FAT file allocation table 602FBRAM frame buffer random access memory 603FCIF full common intermediate format 604FCL fiber channel loop 605FCS frame check sequence 606FDC floppy disk controller 607FDD floppy disk drive 608FDDI fiber distributed data interface 609FDE full disk encryption 610FDT flattened device tree 611FEA finite element analysis 612FEC forward error correction 613FET field-effect transistor 614FF finite field 615FF form feed 616FFDH finite-field Diffie-Hellman 617FFH functional fixed hardware 618FFI foreign function interface 619FFM focus follows mouse 620FFS Fast File System 621FFS find first set 622FFT fast Fourier transform 623FG floating gate 624FHRP first hop redundancy protocol 625FHSS frequency hop spread spectrum 626FID frequency identifier 627FIFO first in, first out 628FILO first in, last out 629FIPS Federal Information Processing Standards 630FIR fast infrared 631FLOPS floating [point] operations per second 632FLOSS free/libre/open source software 633FM frequency modulation 634FMR false match rate 635FOSS free/open source software 636FPGA field programmable gate array 637FPM fast page mode 638FPR floating point register 639FPU floating point unit 640FQDN fully qualified domain name 641FRR false rejection rate 642FRR Free Range Routing 643FRU field replaceable unit 644FS file system 645FSB front side bus 646FSCK file system check 647FSF Free Software Foundation 648FSK frequency shift keying 649FSM finite-state machine 650FTA fault tree analysis 651FTL flash translation layer 652FTP File Transfer Protocol 653FTPS File Transfer Protocol Secure 654FTTH fiber to the home 655FUS fast user switching 656FWH firmware hub 657FWS folding white space 658GAL generic array logic 659GARP generic attribute registration protocol 660GAS generic address structure 661GC garbage collector 662GCC GNU Compiler Collection 663GCM Galois counter mode 664GCR group-coded recording 665GDI Graphics Device Interface 666GDT global descriptor table 667GECOS general comprehensive operating supervisor 668GEM graphics environment manager 669GEM graphics execution manager 670GEMM general matrix multiply 671GENA general event notification architecture 672GHC Glasgow Haskell compiler 673GHES generic hardware error source 674GIC generic interrupt controller 675GID group identifier 676GIF graphics interchange format 677GLBP gateway load balancing protocol 678GMCH graphics and memory controller hub 679GNU GNU's Not Unix 680GOP graphics output protocol 681GOT global offset table 682GPE general purpose event 683GPF general protection fault 684GPG GNU Privacy Guard 685GPL [GNU] General Public License 686GPR general purpose register 687GPS generalized processor sharing 688GPT GUID partition table 689GPU graphics processing unit 690GR golden ratio 691GRE generic routing encapsulation 692GRO generic receive offload 693GSI global system interrupt 694GSO generic send offload 695GUI graphical user interface 696GUID globally unique identifier 697GUS Gravis UltraSound 698GVFS git virtual file system 699HA high availability 700HAL hardware abstraction layer 701HAT hashed array tree 702HATEOAS hypermedia as the engine of application state 703HBA host bus adapter 704HBS hash-based signature 705HCC Home Cable Computer 706HCCA Home Cable Computer Adaptor 707HCF halt and catch fire 708HCI host controller interface 709HCI human-computer interaction 710HCL hardware compatibility list 711HDCP High-bandwidth Digital Content Protection 712HDD hard disk drive 713HDL hardware description language 714HDMI High-Definition Multimedia Interface 715HDTV high-definition television 716HECI host embedded controller interface 717HEST hardware error source table 718HEVC high efficiency video coding 719HF high frequency 720HFM highest frequency mode 721HFS hierarchical file system 722HID human interface device 723HKDF HMAC-based key derivation function 724HKP HTTP Keyserver Protocol 725HLE hardware lock elision (Intel) 726HLL high-level language 727HMA high memory area 728HMI human-machine interface 729HNDL harvest now, decrypt later 730HOOD hierarchical object oriented design 731HOTP HMAC-based one time password 732HP Hewlett-Packard 733HPC high performance computing 734HPD hot plug detection 735HPET high precision event timer 736HPKE hybrid public key encryption 737HSM hardware security module 738HSM hierarchical storage management 739HSRP hot standby router protocol 740HT hyper-threading 741HTC hardware thermal control 742HTCC high temperature co-fired ceramic 743HTML HyperText Markup Language 744HTT hyper-threading technology 745HTTP Hypertext Transfer Protocol 746HTTPS Hypertext Transfer Protocol Secure 747HVDS High-Voltage Differential Signaling 748HVM hardware virtual machine 749HWASAN Hardware-assisted Address Sanitizer 750HZ Hertz 751I2O intelligent input/output 752IA information assurance 753IAAS infrastructure as a service 754IAB Internet Architecture Board 755IANA Internet Assigned Numbers Authority 756IBC iterated block cipher 757IBM International Business Machines 758IBPI international blinking pattern interpretation 759IBS instruction based sampling 760IBSS independent basic service set 761IBT indirect branch tracking 762IC integrated circuit 763ICA independent computer architecture 764ICACLS integrity control access control lists 765ICB Internet Citizen's Band 766ICE in-circuit emulator 767ICE internal compiler error 768ICH I/O controller hub 769ICMP Internet Control Message Protocol 770ICT information and communications technology 771ICW initialization command word 772IDA Intel dynamic acceleration 773IDCMP Intuition direct communication message port 774IDCT inverse discrete cosine transform 775IDE integrated development environment 776IDE integrated drive electronics 777IDPS intrusion detection [and] prevention system 778IDRP inter-domain routing protocol 779IDS intrusion detection system 780IDT interrupt descriptor table 781IE Internet Explorer 782IEC International Electrotechnical Commission 783IEEE Institute of Electrical and Electronics Engineers 784IESG Internet Engineering Steering Group 785IETF Internet Engineering Task Force 786IF intermediate frequency 787IFCM isochronous flow control mode 788IFF Interchange File Format 789IFS internal field separator 790IGD Internet gateway device 791IGMP Internet Group Management Protocol 792IGP interior gateway protocol 793IHV independent hardware vendor 794IKE Internet key exchange 795IKM input keying material 796ILM internal loopback mode 797ILOM integrated lights-out management 798ILP instruction level parallelism 799IM instant messaging 800IMAP Internet Message Access Protocol 801IMC integrated memory controller 802IMCR interrupt mode configuration register 803IME input method editor 804IMR interrupt mask register 805IMS information management system 806IMSI international mobile subscriber identity 807INCITS InterNational Committee for Information Technology Standards 808INODE index node 809IO input/output 810IOCTL input/output control 811IOM input/output managers 812IOMMU input/output memory management unit 813IOT Internet of Things 814IP Internet Protocol 815IP intellectual property 816IPC instructions per cycle 817IPC interprocess communication 818IPCF interprocess communication facility 819IPE integrated programming environment 820IPI intelligent peripheral interface 821IPI interprocessor interrupt 822IPL Initial Program Load 823IPL Interrupt Priority Level 824IPMB Intelligent Platform Management Bus 825IPMI Intelligent Platform Management Interface 826IPNG Internet Protocol, Next Generation 827IPS in-plane switching 828IPS intrusion prevention system 829IPSEC Internet Protocol Security 830IR intermediate representation 831IRC Internet Relay Chat 832IRDA infrared data association 833IRDP ICMP Router Discovery Protocol 834IRQ interrupt request 835IRQL interrupt request level 836IRR interrupt request register 837IRTF Internet Research Task Force 838IS information system 839ISA industry standard architecture 840ISA instruction set architecture 841ISB instruction synchronization barrier (Arm) 842ISDN integrated services digital network 843ISE instant secure erase 844ISI inter-symbol interference 845ISL initial system load 846ISM industrial, scientific, [and] medical 847ISMS information system management system 848ISN initial serial number 849ISO International Standards Organization 850ISOC Internet Society 851ISP Internet service provider 852ISR in-service register 853ISR interrupt service routine 854IST internal spanning tree 855IST interrupt stack table 856ISV independent software vendor 857IT information technology 858ITB Intel Turbo Boost 859ITIL information technology infrastructure library 860ITP in-target probe 861ITSM IT service management 862IV initialization vector 863IVT interrupt vector table 864JBOD just a bunch of disks 865JCL Job Control Language 866JFET junction [gate] field-effect transistor 867JIT just in time 868JPEG Joint Photographic Experts Group 869JRE Java Runtime Environment 870JSON JavaScript Object Notation 871JTAG joint test action group 872KASAN Kernel Address Sanitizer 873KASLR kernel address space layout randomization 874KB keyboard 875KB kilobyte 876KBD keyboard 877KBD kilobaud 878KCS keyboard controller style 879KDF key derivation function 880KEK key encryption key 881KEM key encapsulation mechanism 882KLOC thousand lines of code 883KMS kernel-mode setting 884KPI kernel programming interface 885KVA kernel virtual address 886KVM kernel virtual machine 887KVM kernel virtual memory 888KVM keyboard, video, [and] mouse 889L2CAP link layer control and adaptation protocol 890LAG link aggregation group 891LAMP Linux Apache MySQL {Perl,PHP,Python} 892LAN local area network 893LAPIC local advanced programmable interrupt controller 894LAR load access rights 895LBA logical block addressing 896LBNF labeled backus-naur form 897LBS location-based service 898LCD liquid crystal display 899LCP link control protocol 900LDA local delivery agent 901LDAP Lightweight Directory Access Protocol 902LDR light-dependent resistor 903LDT local descriptor table 904LE logical extent 905LED light emitting diode 906LELL low energy link layer 907LER label edge router 908LF line feed 909LF low frequency 910LFM lowest frequency mode 911LFN long file names 912LFO low-frequency oscillation 913LFS log-structured file system 914LFU least frequently used 915LHP loop heat pipe 916LIF logical interchange format 917LIFO last in, first out 918LILO LInux LOader 919LILO last in, last out 920LINT local interrupt 921LIR local Internet registry 922LISP LISt Processor 923LISP Locator/ID Separation Protocol 924LKM {Linux,loadable} kernel module 925LKML Linux kernel mailing list 926LL load linked 927LL/SC load linked/store conditional 928LLC logical link control 929LLD low-level design 930LLDD low-level design document 931LLDP link layer discovery protocol 932LLF low level format 933LLMNR link-local multicast name resolution 934LLVM Low Level Virtual Machine 935LM long mode 936LMCE local machine check exception 937LMI local management interface 938LMM link management mode 939LMP link management protocol 940LMS Leighton-Micali Signature 941LNO loop nest optimization 942LOC lines of code 943LOM lights-out management 944LPC low pin count 945LPE Linux performance events 946LPS local positioning system 947LRC longitudinal redundancy check 948LRM left-to-right mark 949LRO Large Receive Offload 950LRO left-to-right override 951LRU least recently used 952LS link state 953LSAN Leak Sanitizer 954LSB Linux standards base 955LSB least significant {bit,byte} 956LSI large scale integration 957LSL load segment limit 958LSM log structured merge 959LSN Large Scale NAT 960LSN log sequence number 961LSO large send offload 962LSR label switch router 963LTCC low temperature co-fired ceramic 964LTO linear tape-open 965LTO link time optimization 966LTR left to right 967LTR letter(-sized paper) 968LTR load task register 969LTS long term support 970LUA Lua Uppercase Accident 971LUN logical unit number 972LV logical volume 973LVDS Low-Voltage Differential Signaling 974LVM logical volume management 975LVT local vector table 976LWP light-weight process 977LZSS Lempel Ziv Storer Szymanski 978LZW Lempel Ziv Welch 979MAB MAC authentication bypass 980MAC mandatory access control 981MAC message authentication {check,code} 982MAC {media,medium} access control 983MADT multiple APIC descriptor table 984MAMR microwave-assisted magnetic recording 985MB megabyte 986MBA multi-boot agent 987MBR master boot record 988MBS megabits per second 989MC memory controller 990MCA MicroChannel architecture 991MCA machine check architecture 992MCC multiversion concurrency control 993MCE machine check exception 994MCGA Multi-Color Graphics Array 995MCH memory controller hub 996MCLAG multi-chassis link aggregation group 997MCM multi-chip module 998MCQ memory controlled queue 999MD MiniDisc 1000MD machine-dependent 1001MD-SAL model-driven service abstraction layer 1002MDA Monochrome Display Adapter 1003MDA mail delivery agent 1004MDC Management Data Clock 1005MDI Medium Dependent Interface 1006MDI-X Medium Dependent Interface Crossover 1007MDIO Management Data Input/Output 1008MDMX MIPS Digital Media eXtension 1009MDRAM multibank dynamic random access memory 1010MDS microarchitectural data sampling 1011MESI modified, exclusive, shared, invalid 1012MFC Microsoft Foundation Classes 1013MFC merge from current 1014MFM modified frequency modulation 1015MFU most frequently used 1016MGCP media gateway control protocol 1017MHU message handling unit 1018MI machine interface 1019MI machine-independent 1020MIB management information base 1021MIC message integrity {check,code} 1022MID mobile Internet device 1023MIDI musical instrument digital interface 1024MIF management information format 1025MII media independent interface 1026MIM man in the middle 1027MIMD multiple instruction, multiple data 1028MIME Multipurpose Internet Mail Extensions 1029MIMO multiple input multiple output 1030MIPS Microprocessor without Interlocked Pipeline Stages 1031MIPS million instructions per second 1032MISD multiple instruction, single data 1033MIT Massachusetts Institute of Technology 1034MITM man in the middle 1035ML machine language 1036ML machine learning 1037ML mailing list 1038ML markup language 1039ML maximum likelihood 1040ML-KEM module-lattice based key-encapsulation mechanism 1041MLAG multi-chassis link aggregation group 1042MLC multi-level cell 1043MLD multicast listener discovery 1044MLHP micro loop heat pipe 1045MLIR multi-level intermediate representation 1046MLO MMC loader 1047MMC multi-media card 1048MMF multi-mode fiber 1049MMIC monolithic microwave integrated circuit 1050MMIO memory mapped input/output 1051MMORPG massive multiplayer online role playing game 1052MMRP multiple MAC registration protocol 1053MMU memory management unit 1054MMX matrix math extension 1055MMX multimedia extension 1056MMX multiple math extension 1057MO magneto-optical 1058MOESI modified, owned, exclusive, shared, invalid 1059MOF maximum operating frequency 1060MOSFET metal-oxide-semiconductor field-effect transistor 1061MOSI modified, owned, shared, invalid 1062MP multi-platform 1063MP multiplayer 1064MP {multiprocessing,multiprocessor} 1065MPEG moving picture experts group 1066MPI message passing interface 1067MPLS Multiprotocol Label Switching 1068MPP massively parallel processor 1069MPS memory pool system 1070MPS multiprocessor specification 1071MQTT Message Queuing Telemetry Transport 1072MR modem ready 1073MRO method resolution order 1074MRP multiple registration protocol 1075MRU most recently used 1076MS Microsoft 1077MSAN Memory Sanitizer 1078MSB most significant {bit,byte} 1079MSC message sequence chart 1080MSE mean square error 1081MSF minutes seconds frames 1082MSI message signaled interrupt 1083MSI modified, shared, invalid 1084MSR {machine state,model-specific} register 1085MSS maximum segment size 1086MSTP Multiple Spanning Tree Protocol 1087MT machine translation 1088MTA mail transfer agent 1089MTBF mean time between failures 1090MTP media transfer protocol 1091MTRR memory type range register 1092MTTF mean time to failure 1093MTU maximum transmission unit 1094MUA mail user agent 1095MUD multi-user domain 1096MVCC multiversion concurrency control 1097MVR multicast VLAN registration 1098MVRP multiple VLAN registration protocol 1099MWE module width encoding 1100MX mail exchange 1101NACK negative acknowledgement 1102NAK negative acknowledgement 1103NAN neighbor awareness networking 1104NAN not a number 1105NAPT Network Address Port Translation 1106NAS network attached storage 1107NAT network address translation 1108NAV network allocation vector 1109NC numerical control 1110NC-SI network controller sideband interface 1111NCO numerically-controlled oscillator 1112NCP Network Control Protocol 1113NCQ native command queuing 1114NCSI network connectivity status indicator 1115ND neighbor discovery 1116NDFA nondeterministic finite automaton 1117NDIS network driver interface specification 1118NE numeric error 1119NEWS Network extensible Window System 1120NFA nondeterministic finite automaton 1121NFC near-field communication 1122NFCI no functional change intended 1123NFS network file system 1124NFV network function virtualization 1125NHACP NABU HCCA Application Communication Protocol 1126NIA next instruction address 1127NIC network information center 1128NIC network interface card 1129NIDS network intrusion detection system 1130NIKE Non-Interactive Key Exchange 1131NIP network interface protocol 1132NIPR non-classified IP router (network) 1133NIPS network intrusion prevention system 1134NIS network information service 1135NIST National Institute of Standards and Technology 1136NLS native language support 1137NMI non-maskable interrupt 1138NMR nonce-misuse resistance 1139NNTP Network News Transfer Protocol 1140NOC network operations center 1141NOP no operation 1142NOS network operating system 1143NP nondeterministic polynomial time 1144NRND not recommended for new designs 1145NRZ non-return to zero 1146NSA National Security Agency 1147NSA nation-state adversary 1148NSA no such agency 1149NTA negative trust anchor 1150NTM non-deterministic Turing machine 1151NTP Network Time Protocol 1152NUMA non-uniform memory access 1153NURBS non-uniform rational basis spline 1154NVD National Vulnerability Database 1155NVMM NetBSD Virtual Machine Monitor 1156NVMM non-volatile main memory 1157NVRAM non-volatile random access memory 1158NW not write-through 1159NX no execute 1160OAEP optimal asymmetric encryption padding 1161OAM operations, administration, and {management,maintenance} 1162OBO off by one 1163OBOE off by one error 1164OCL object constraint language 1165OCR optical character recognition 1166ODBC Open Database Connectivity 1167ODCM on-demand clock modulation 1168ODE offline device environment 1169ODI open data-link interface 1170ODM object data manager 1171ODMR on-demand mail relay 1172ODT on-die termination 1173OEM original equipment manufacturer 1174OFB output feedback 1175OFDM orthogonal frequency division multiplexing 1176OFET organic field-effect transistor 1177OLAP online analytical processing 1178OLE object linking and embedding 1179OLTP online transaction processing 1180ONCE on-{chip,circuit} emulation 1181ONFI open nand flash interface 1182OO OpenOffice 1183OO object oriented 1184OOB out of band 1185OOE out of order execution 1186OOM out of memory 1187OOO OpenOffice.org 1188OOP object oriented programming 1189OOPS object oriented programming systems 1190OOSE object oriented software engineering 1191OPM operations per minute 1192OPS operations per second 1193OQL Object Query Language 1194ORB object request broker 1195ORM object-relational mapping 1196OS operating system 1197OSD object-based storage device 1198OSD open source definition 1199OSF open software foundation 1200OSI Open Source Initiative 1201OSI open systems interconnection 1202OSPF open shortest path first 1203OSPM OS power management 1204OSS open sound system 1205OSS open source software 1206OSVW operating system visible workarounds 1207OTP one time password 1208OTP open telecom platform 1209OU organizational unit 1210OUI organizationally unique identifier 1211OWASP Open Web Application Security Project 1212OWL Web Ontology Language 1213P2P PCI to PCI 1214P2P peer to peer 1215PA phase accumulator 1216PA physical address 1217PAAS platform as a service 1218PAC phase-amplitude converter 1219PAE physical address extension 1220PAGP port aggregation protocol 1221PAL phase alternating line 1222PAL programmable array logic 1223PAM pluggable authentication modules 1224PAM pulse amplitude modulation 1225PAP password authentication protocol 1226PAT page attribute table 1227PAT port address translation 1228PATA parallel ATA 1229PAX portable archive exchange 1230PBE pending break encoding 1231PBE programming by example 1232PBKDF password-based key derivation function 1233PBR partition boot record 1234PBX private branch exchange 1235PC personal computer 1236PC program counter 1237PCB Protocol Control Block 1238PCB printed circuit board 1239PCB process control block 1240PCBC propagating cipher block chaining 1241PCC Portable C Compiler 1242PCD page-level cache disable 1243PCE path computation element 1244PCE performance-monitor counter enable 1245PCEP Path Computation Element Protocol 1246PCH platform controller hub 1247PCI peripheral component interconnect 1248PCM phase change memory 1249PCM pulse code modulation 1250PCMCIA Personal Computer Memory Card International Association 1251PCP Port Control Protocol 1252PD public domain 1253PDA personal digital assistant 1254PDA pushdown automaton 1255PDAG propositional directed acyclic graph 1256PDB power distribution board 1257PDF portable document format 1258PDM pulse-duration modulation 1259PDN pull-down network 1260PDP page {descriptor,directory} page 1261PDS product data sheet 1262PDU protocol data unit 1263PE portable executable 1264PE protection enable 1265PE provider edge 1266PEAP Protected EAP 1267PECI platform environment control interface 1268PED PIN Entry Device 1269PEP protocol extension protocol 1270PER packed encoding rules 1271PFS perfect forward secrecy 1272PGAS partitioned global address space 1273PGE page global enable 1274PGO profile guided optimization 1275PGP Pretty Good Privacy 1276PHB PCI host bridge 1277PHP PHP: Hypertext Preprocessor 1278PIC performance instrumentation counters 1279PIC position independent code 1280PIC programmable interrupt controller 1281PICNIC problem in chair, not in computer 1282PID process id 1283PIE position independent executable 1284PIL Priority Interrupt Level 1285PIM personal information manager 1286PIM platform-independent model 1287PIO programmed input/output 1288PIPT physically indexed, physically tagged 1289PIQ prefetch input queue 1290PIR private information retrieval 1291PIT programmable interrupt timer 1292PIV personal identity verification 1293PIX Private Internet eXchange 1294PKCS public-key cryptography standards 1295PKE public key encryption 1296PKI public key infrastructure 1297PLC programmable logic controller 1298PLD programmable logic device 1299PLL phase locked loop 1300PLRU pseudo LRU 1301PLT procedure linkage table 1302PLTM package level thermal management 1303PM power management 1304PM {phase,pulse} modulation 1305PMC performance monitoring counters 1306PME power management event 1307PMEG page map entry group 1308PMI performance monitoring infrastructure 1309PMI platform management interrupt 1310PMIC power management integrated circuit 1311PMIO port-mapped input/output 1312PMT photo-multiplier tube 1313PMU performance monitoring units 1314PMU power management unit 1315PNG portable network graphics 1316PNP plug and play 1317POE power over ethernet 1318POF probability of failure 1319POP Post Office Protocol 1320POP power on password 1321POR plan of record 1322POSIX Portable Operating System Interface [for Unix] 1323POST power on self test 1324POTS plain old telephone system 1325POWER Performance Optimization With Enhanced RISC 1326POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1327PP pair programming 1328PPB PCI [to] PCI bridge 1329PPC Power Performance Computing 1330PPC PowerPC 1331PPI pixels per inch 1332PPM pages per minute 1333PPP Point-to-Point Protocol 1334PPPOA Point-to-Point Protocol over ATM 1335PPPOE Point-to-Point Protocol over Ethernet 1336PPR processor programming reference 1337PPT powerpoint 1338PPT punched paper tape 1339PPU physics processing unit 1340PQC post-quantum cryptography 1341PRAM Parameter RAM 1342PRBS pseudorandom bit sequence 1343PRF pseudorandom function [family] 1344PRG pseudorandom generator 1345PRML partial response, maximum likelihood 1346PRN pseudorandom {noise,number} 1347PRNG pseudorandom number generator 1348PROM programmable read only memory 1349PRP pseudorandom permutation 1350PRU Programmable Realtime Unit 1351PS PostScript 1352PSD power spectral density 1353PSE page size extensions 1354PSK phase shift keying 1355PSK pre-shared key 1356PSTN public switched telephone network 1357PSW program status word 1358PTE page table entry 1359PTLA pseudo top level aggregator 1360PTP page table page 1361PTV perceived target value 1362PU processing unit 1363PUC personal unblocking code 1364PUN physical unit number 1365PV physical volume 1366PVC permanent virtual circuit 1367PVG physical volume group 1368PVI protected-mode virtual interrupt 1369PVRST Per-VLAN rapid spanning tree 1370PVST Per-VLAN Spanning Tree 1371PWM pulse width modulation 1372PXE preboot execution environment 1373QA quality assurance 1374QAM quadrature amplitude modulation 1375QAM quality assurance management 1376QBE query by example 1377QC quality control 1378QCIF quarter common intermediate format 1379QDI quasi delay insensitive 1380QOI quality of implementation 1381QOI quick order interface 1382QOS quality of service 1383QUIC Quick UDP Internet Connections 1384QVL qualified vendor list 1385R/O read only 1386R/W read/write 1387RA receiver address 1388RA remote assistance 1389RA resource affinity 1390RA router advertisement 1391RAD rapid application development 1392RADIUS remote authentication dial-in user service 1393RAID redundant array of {independent,inexpensive} disks 1394RAII resource acquisition is initialization 1395RAM random access memory 1396RAS reliability, availability and serviceability 1397RAS remote access service 1398RAS restartable atomic sequence 1399RAS row address strobe 1400RAT register allocation table 1401RAT remote access trojan 1402RBF radial basis function 1403RBL real-time blackhole list 1404RBL reputation block list 1405RBNF routing backus-naur form 1406RBT red-black tree 1407RC release candidate 1408RC remote control 1409RC run commands 1410RCS Revision Control System 1411RCU read, copy, update 1412RDB Rigid Disk Block 1413RDBMS relational database management system 1414RDF Resource Description Framework 1415RDM relational data model 1416RDMA remote direct memory access 1417RDP remote desktop protocol 1418RDRAM Rambus DRAM 1419RE regular expression 1420REPL read, evaluate, print, loop 1421REST representational state transfer 1422RF radio frequency 1423RFB remote frame buffer 1424RFI radio frequency interference 1425RFO request for ownership 1426RFU reserved for future use 1427RGB red green blue 1428RGBA red green blue alpha 1429RGMII reduced gigabit media independent interface 1430RH read hit 1431RHEL Red Hat Enterprise Linux 1432RHL Red Hat Linux 1433RIB routing information base 1434RIFF Resource Interchange File Format 1435RIP Raster Image Processor 1436RIP Routing Information Protocol 1437RIPR releasable IP router (network) 1438RIR regional Internet registry 1439RISC reduced instruction set {computer,computing} 1440RKM ROM Kernel Manual 1441RLE run length encoding 1442RLL run length limited 1443RLO right-to-left override 1444RM read miss 1445RMCP Remote Management Control Protocol 1446RMI remote method invocation 1447RMO Relaxed Memory Ordering 1448RMPM rapid memory power management 1449RMS root mean square 1450RMW read, modify, write 1451RNG random number generator 1452ROA route origin authorization 1453ROM read only memory 1454ROP return-oriented programming 1455RPC remote procedure call 1456RPG Report Program Generator 1457RPKI resource PKI 1458RPL requested privilege level 1459RPM revolutions per minute 1460RPN reverse Polish notation 1461RPVST Rapid Per-VLAN Spanning Tree 1462RR random replacement 1463RR round robin 1464RS relay station 1465RSA Rivest, Shamir, [and] Adleman 1466RSC Receive Segment Coalescing 1467RSIP Realm Specific IP 1468RSN Robust Secure Network 1469RSS Receive Side Scaling 1470RSS really simple syndication 1471RSS residual sum of squares 1472RSTP Rapid Spanning Tree Protocol 1473RT real time 1474RTC real time clock 1475RTC real time computing 1476RTF rich text format 1477RTL register transfer language 1478RTL resistor-transistor logic 1479RTL right to left 1480RTM restricted transactional memory (Intel) 1481RTOS real time operating system 1482RTP Real-time Transport Protocol 1483RTS request to send 1484RTT round trip time 1485RTTI run-time type information 1486RUP rational unified process 1487RW Rabin-Williams 1488RWM read-write memory 1489RX {receive,receiver} 1490S/PDIF Sony/Philips Digital Interface Format 1491SA security advisory 1492SA security association 1493SA source address 1494SA structured analysis 1495SAAS software as a service 1496SABRE Semi-automated business research environment 1497SACD super audio compact disc 1498SAD security association database 1499SAF-TE SCSI accessed fault-tolerant enclosure 1500SAGE Semi-automated ground environment 1501SAL {service,system} abstraction layer 1502SAM serial access memory 1503SAM sum addressed memory 1504SAML security assertion markup language 1505SAN storage area network 1506SAP service access point 1507SAPIC streamlined advanced programmable interrupt controller 1508SASD structured analysis, structured design 1509SASI Shugart Associates System Interface 1510SASL simple authentication [and] security layer 1511SATA serial advanced technology attachment 1512SAX simple API for XML 1513SB sound blaster 1514SBI supervisor binary interface 1515SBOM Software Bill of Materials 1516SBSA server base system architecture 1517SBU standard build unit 1518SC store conditional 1519SCA source code analyzer 1520SCADA supervisory control and data acquisition 1521SCC single chip cloud 1522SCC source code control 1523SCCP skinny call control protocol 1524SCCS Source Code Control System 1525SCI scalable coherent interface 1526SCI system control interrupt 1527SCIM smart common input method 1528SCM software configuration management 1529SCM source code management 1530SCM storage-class memory 1531SCO synchronous connection orientated 1532SCP secure copy 1533SCP system control processor 1534SCPI system control and power interface 1535SCSI Small Computer System Interface 1536SCT Signed Certificate Timestamp 1537SCTP Stream Control Transmission Protocol 1538SDDC software defined data center 1539SDEI software delegated exception interface 1540SDI symbol deinterleave 1541SDK software development kit 1542SDL Simple Declarative Language 1543SDL Simple Direct-media Layer 1544SDLC {software,system,systems} development life cycle 1545SDN software defined networking 1546SDP Session Description Protocol 1547SDR software defined radio 1548SDRAM synchronous dynamic random access memory 1549SDS software defined storage 1550SDT syntax-directed translation 1551SEA synchronous external abort 1552SED self-encrypting drive 1553SED stream editor 1554SEGV segmentation violation 1555SEMB serial ATA enclosure management bridge 1556SEO search engine optimization 1557SES SCSI enclosure services 1558SFC sequential function chart 1559SFI simple firmware interface 1560SFI software fault isolation 1561SFP small form-factor pluggable 1562SFTP SSH File Transfer Protocol 1563SFTP Serial File Transfer Protocol 1564SFTP Simple File Transfer Protocol 1565SGI Silicon Graphics, Inc 1566SGI software generated interrupt 1567SGMII serial gigabit media independent interface 1568SGPIO serial general purpose input/output 1569SGRAM synchronous graphics random access memory 1570SHA secure hash algorithm 1571SICP structure and interpretation of computer programs 1572SIDH supersingular isogeny Diffie-Hellman 1573SIEM security information and event management 1574SIF source input format 1575SIFS short inter-frame space 1576SIM subscriber identity module 1577SIMD single instruction, multiple data 1578SIMM single inline memory module 1579SIP Session Initiation Protocol 1580SIPR secret IP router (network) 1581SIR signal-to-interference ratio 1582SIR slow infrared 1583SIRT security incident response team 1584SISD single instruction, single data 1585SIV synthetic intialization vector 1586SLAAC stateless address auto-configuration 1587SLC single-level cell 1588SLDRAM synchronous-link dynamic random access memory 1589SLED single large expensive disk 1590SLI scalable link interface 1591SLI scan-line interleave 1592SLIC system license internal code 1593SLOC source lines of code 1594SLRU segmented LRU 1595SMA smart memory access 1596SMAF system management action field 1597SMAP Simple Mail Access Protocol 1598SMAP supervisor mode access prevention 1599SMART self-monitoring analysis and reporting technology 1600SMB Server Message Block 1601SMB system management bus 1602SMBIOS System Management BIOS 1603SMC system management controller 1604SMD storage module device 1605SMEP supervisor mode execution protection 1606SMF single mode fiber 1607SMI structure of management information 1608SMI system management interrupt 1609SMM system management mode 1610SMP serial management protocol 1611SMP symmetric multiprocessing 1612SMR shingled magnetic recording 1613SMR state machine replication 1614SMT simultaneous multithreading 1615SMTP Simple Mail Transfer Protocol 1616SMU system management unit 1617SNA systems network architecture 1618SNAP Sub-Network Access Protocol 1619SNIA Storage Networking Industry Association 1620SNMP Simple Network Management Protocol 1621SNR signal-to-noise ratio 1622SOA service oriented architecture 1623SOAP Simple Object Access Protocol 1624SOC security operations center 1625SOC system on chip 1626SOF start of frame 1627SOH start of header 1628SOHO small office/home office 1629SOL serial over LAN 1630SOM system on module 1631SP service pack 1632SP stack pointer 1633SPA storage pool allocator 1634SPAN switched port analyzer 1635SPARC scalable processor architecture 1636SPARQL SPARQL Protocol and RDF Query Language 1637SPD security policy database 1638SPD serial presence detect 1639SPDIF Sony/Philips digital interface format 1640SPI serial peripheral interface 1641SPI stateful packet inspection 1642SPIR standard portable intermediate representation 1643SPL secondary program loader 1644SPL spinlock 1645SPL system interrupt priority level 1646SPMD single process, multiple data 1647SPR special purpose register 1648SPT sectors per track 1649SQA software quality assurance 1650SQCIF sub quarter common intermediate format 1651SQL Structured Query Language 1652SRAM static random access memory 1653SRC sample rate conversion 1654SRP SCSI RDMA protocol 1655SRR shaped round robin 1656SRTP Secure Real-time Transport Protocol 1657SS self-snoop 1658SS stack segment 1659SSA static single assignment 1660SSAP source service access point 1661SSB single-sideband modulation 1662SSB speculative store bypass 1663SSBB speculative store bypass barrier (Arm) 1664SSBD speculative store bypass disable (Intel) 1665SSC spread spectrum clock 1666SSD solid state drive 1667SSE streaming SIMD extensions 1668SSFDC solid state floppy disc card 1669SSH secure shell 1670SSI server side includes 1671SSID service set identifier 1672SSL secure sockets layer 1673SSP stack smashing protection 1674SSRF server-side request forgery 1675SSTP secure socket tunneling protocol 1676STC software thermal control 1677STD state transition diagram 1678STEK session ticket encryption key 1679STM software transactional memory 1680STOMP Streaming Text Oriented Messaging Protocol 1681STP Spanning Tree Protocol 1682STP shielded twisted pair 1683STRG spanning tree root guard 1684SUN Stanford University Network 1685SUS Single Unix Specification 1686SUT system under test 1687SVC switched virtual circuit 1688SVG scalable vector graphics 1689SVGA Super Video Graphics Array 1690SVI {switch,switched} virtual interface 1691SVM secure virtual machine 1692SVM support vector machine 1693SVR System V Release 1694SVS Separate Virtual Space 1695SWF Shockwave Flash 1696SWIG simplified wrapper [and] interface generator 1697SYR symbol timing recovery 1698TA test assertion 1699TA transmitter address 1700TAA transactional asynchronous abort (Intel) 1701TACACS terminal access controller access-control system 1702TAI international atomic time 1703TAO track at once 1704TAOCP The Art of Computer Programming 1705TAP Test Anything Protocol 1706TAS test and set 1707TB terabyte 1708TBNF transitional backus-naur form 1709TCB trace capture buffer 1710TCB trusted computing base 1711TCC thermal control circuit 1712TCL tool command language 1713TCP Transmission Control Protocol 1714TCQ tagged command queueing 1715TDC time [to] digital converter 1716TDD test-driven development 1717TDD time division duplex 1718TDM time division multiplexing 1719TDMA time division multiple access 1720TDOA time difference of arrival 1721TDP thermal design {point,power} 1722TDR time-domain reflectometry 1723TECO Text Editor and Corrector 1724TEE Trusted Execution Environment 1725TFT thin film transistor 1726TFTP Trivial File Transfer Protocol 1727TIAS try it and see 1728TIFF tagged image file format 1729TITS try it to see 1730TK temporal key 1731TKIP Temporal Key Integrity Protocol 1732TLA top level aggregator 1733TLB translation lookaside buffer 1734TLD top level domain 1735TLER time-limited error recovery 1736TLI transport layer interface 1737TLS thread local storage 1738TLS transport layer security 1739TLV type, length, value 1740TM Turing machine 1741TM thermal monitor 1742TMDS transition minimized differential signaling 1743TMG transmogrifier 1744TMO timeout 1745TOD time of day 1746TOE TCP offload engine 1747TOFU trust on first use 1748TOS terms of service 1749TOS trusted operating system 1750TOS type of service 1751TOTP time-based one time password 1752TP transaction processing 1753TPI tracks per inch 1754TPM transactions per minute 1755TPM trusted platform module 1756TPR task priority register 1757TPS transactions per second 1758TPS transmission parameters signaling 1759TR task register 1760TR token ring 1761TRL timing recovery loop 1762TRNG true random number generator 1763TS terminal services 1764TS time series 1765TS time stamp 1766TS transport stream 1767TSAN Thread Sanitizer 1768TSC time stamp counter 1769TSD time stamp disable 1770TSDB time series database 1771TSL test, set, lock 1772TSO TCP segmentation offload 1773TSO Total Store Ordering 1774TSO time sharing option 1775TSP Time-Stamp Protocol 1776TSP Tunnel Setup Protocol 1777TSP time synchronization protocol 1778TSP traveling salesman problem 1779TSS task state segment 1780TSV tab-separated values 1781TSX transaction synchronization extensions (Intel) 1782TTL time to live 1783TTL transistor-transistor logic 1784TTM translation table maps 1785TTY teletype 1786TU translation unit 1787TUI {terminal,text-based,textual} user interface 1788TX {transmit out,transmitter} 1789TXG transaction group 1790TZ time zone 1791UAC user {access,account} control 1792UAF use-after-free 1793UART universal asynchronous receiver/transmitter 1794UAT user acceptance testing 1795UB undefined behavior 1796UBSAN Undefined Behavior Sanitizer 1797UC uncacheable 1798UCS unified computing system 1799UCS uniform-cost search 1800UCS universal coded character set 1801UDI uniform driver interface 1802UDMA ultra DMA 1803UDO ultra density optical 1804UDP User Datagram Protocol 1805UDS Unix Domain Socket 1806UEFI unified extensible firmware interface 1807UFO UDP fragmentation offload 1808UFS Unix File System 1809UGA universal graphics adapter 1810UI unit interval 1811UI user interface 1812UICC universal integrated circuit card 1813UID unique identifier 1814UID user identifier 1815UL upload 1816UMA uniform memory access 1817UMA upper memory area 1818UMB upper memory block 1819UML unified modeling language 1820UMPC ultra-mobile PC 1821UPNP universal plug and play 1822UPS uninterruptible power supply 1823URI uniform resource identifier 1824URL uniform resource locator 1825URN uniform resource name 1826USART universal synchronous/asynchronous receiver/transmitter 1827USB universal serial bus 1828USWC uncacheable speculative write combining 1829UT unit test 1830UTC coordinated universal time 1831UTF unicode transformation formats 1832UTP unshielded twisted pair 1833UTS UNIX time-sharing 1834UUCP Unix-to-Unix Copy Protocol 1835UUID universally unique identifier 1836UUOC useless use of cat 1837UUT unit under test 1838UX user experience 1839VA vertical alignment 1840VA virtual address 1841VA volt-ampere 1842VAX virtual address extension 1843VB Visual Basic 1844VBR volume boot record 1845VCA variable-gain amplifier 1846VCC common collector voltage 1847VCCP virtual chassis control protocol 1848VCF voltage-controlled filter 1849VCM virtual channel memory 1850VCO voltage-controlled oscillator 1851VCP virtual chassis port 1852VCS version control system 1853VDP vulnerability disclosure policy 1854VDPAU Video Decode and Presentation API for Unix 1855VES virtual execution system 1856VESA Video Electronics Standards Association 1857VFO variable-frequency oscillator 1858VFS virtual file system 1859VG volume group 1860VGA Video Graphics Array 1861VHD virtual hard disk 1862VHDCI very high density cable interconnect 1863VID {VLAN,voltage level} identifier 1864VIM Vi IMproved 1865VIPT virtually indexed, physically tagged 1866VIVT virtually indexed, virtually tagged 1867VLAN virtual local area network 1868VLD variable-length decoding 1869VLIW very long instruction word 1870VLSI very large scale integration 1871VLSM variable length subnet mask 1872VM virtual {machine,memory} 1873VME virtual mode extension 1874VMX vector multimedia extensions 1875VMX virtual machine extensions 1876VNC virtual network computing 1877VNI virtual network identifier 1878VOD video on demand 1879VPD vital product data 1880VPN virtual private network 1881VPWS virtual private wire service 1882VR virtual reality 1883VRAM video random access memory 1884VRF virtual routing and forwarding 1885VRM voltage regulator module 1886VROC Virtual RAID On CPU 1887VRRP Virtual Router Redundancy Protocol 1888VSTP VLAN Spanning Tree Protocol 1889VTEP VXLAN tunnel endpoint 1890VTP VLAN Trunking Protocol 1891VXFS Veritas file system 1892VXLAN virtual extensible LAN 1893VXVM Veritas volume manager 1894W watt 1895W3C World Wide Web Consortium 1896WAFL write anywhere file layout 1897WAMP Web Application Messaging Protocol 1898WAN wide area network 1899WAP Wireless Application Protocol 1900WAP wireless access point 1901WDDM Windows Display Driver Model 1902WDM Wavelength Division Multiplexing 1903WDM Windows Driver Model 1904WDT watchdog timer 1905WEP Wired Equivalent Privacy 1906WFI wait for interrupt 1907WFQ weighted fair queuing 1908WH write hit 1909WHEA Windows hardware error architecture 1910WIFI wireless fidelity 1911WLAN wireless local area network 1912WM write miss 1913WMF Windows meta file 1914WMI Windows Management Instrumentation 1915WOL Wake-on-LAN 1916WOM Wake-on-Modem 1917WOR Wake-on-Ring 1918WORM write once read many 1919WP WordPerfect 1920WP word processor 1921WP write protect 1922WPA Wi-Fi Protected Access 1923WPA2 Wi-Fi Protected Access II 1924WPAD web proxy auto-discovery protocol 1925WPS Wi-Fi Protected Setup 1926WRAM window random access memory 1927WS web services 1928WTC write through caching 1929WTD weighted tail drop 1930WWAN wireless wide area network 1931WWW world wide web 1932WYSIAYG what you see is all you get 1933WYSIWYG what you see is what you get 1934XBAR crossbar 1935XDMCP X Display Manager control protocol 1936XER XML encoding rules 1937XGA Extended Graphics Array 1938XHR XMLHttpRequest 1939XIP execute in place 1940XML Extensible Markup Language 1941XMSS eXtended Merkle Signature Scheme 1942XNA XNA's not acronymed 1943XNS Xerox network systems 1944XOF eXtendable-Output Function 1945XOR exclusive or 1946XP extreme programming 1947XSI X/Open System Interface 1948XSL extensible stylesheet language 1949XSLT extensible stylesheet language transformations 1950XSS cross site scripting 1951XT extended technology 1952XTACACS extended terminal access controller access-control system 1953XTI X/Open transport interface 1954XUL XML user interface language 1955YACC yet another compiler compiler 1956YAML YAML ain't markup language 1957YANG yet another next generation 1958YAWPFAPR you are welcome; please file a problem report 1959YP Yellow Pages 1960YTD year to date 1961ZAP ZFS attribute processor 1962ZBR zone bit recording 1963ZFOD zero-filled on demand 1964ZFS zettabyte file system 1965ZIF zero insertion force 1966ZIFS zero insertion force socket 1967ZIL ZFS intent log 1968ZMA zone multicast address 1969ZOI zero one infinity 1970ZOI zone of influence 1971ZPL ZFS Posix layer 1972ZVOL ZFS Volume 1973