1 $NetBSD: acronyms.comp,v 1.150 2015/08/22 19:18:10 dholland Exp $
2 3WHS three-way handshake
3 8VSB 8-state vestigial side band modulation
5 AAA authentication, authorization, [and] accounting
6 AAT average access time
7 ABI application binary interface
10 ACI adjacent channel interferer
11 ACID atomicity, consistency, isolation, durability
12 ACK Amsterdam compiler kit
14 ACL access control list
15 ACL active current loop
16 ACP auxillary control {process,program}
17 ACPI advanced configuration and power interface
18 ACS access control set
19 ACU automatic calling unit
21 ADC analog [to] digital converter
22 ADD acronym driven development
23 ADO active data objects
24 ADP automatic data processing
25 ADPCM adaptive differential pulse code modulation
26 ADS alternate data stream
27 ADSL asymmetric digital subscriber line
28 ADT abstract data type
29 AES Advanced Encryption Standard
30 AFS Andrew File System
31 AGC automatic gain control
32 AGP accelerated graphics port
34 AI artificial intelligence
37 ALE address latch enable
38 ALS ambient light sensor
39 ALU arithmetic and logical unit
42 AM amplitude modulation
43 AMI alternate mark inversion
44 AMQP advanced message queuing protocol
45 AMT active management technology
47 ANSI American National Standards Institute
52 AP application processor
53 API application programming interface
54 APIC advanced programmable interrupt controller
55 APIPA automatic private IP addressing
56 APT advanced persistent threat
57 AQM active queue management
58 ARAT always running APIC timer
59 ARC adaptive replacement cache
60 ARM Advanced RISC Machines
61 ARP Address Resolution Protocol
62 ARPA Advanced Research Projects Agency
63 ARQ automatic repeat request
64 ARR address range register
65 ARU audio response unit
67 ASC advanced smart cache
68 ASCII American Standard Code for Information Interchange
69 ASD agile software development
70 ASE advanced software environment
71 ASIC application-specific integrated circuit
72 ASK amplitude shif keying
73 ASLR address space layout randomization
74 ASN autonomous system number
75 ASPM active state power management
76 ASQ automated software quality
77 ASR address space register
78 AST abstract syntax tree
81 AT advanced technology
82 ATA advanced technology attachment
83 ATAPI advanced technology attachment packet interface
84 ATC address translation cache
85 ATM asynchronous transfer mode
86 ATX advanced technology extended
88 AVL Adelson-Velsky-Landis
89 AVX advanced vector extensions
91 BAL basic assembly language
92 BAR base address register
93 BBS bulletin board system
95 BCD binary coded decimal
96 BCR byte count register
97 BCS base configuration space
99 BDD binary decision diagram
101 BDUF big design up front
102 BEDO burst extended data output
103 BER basic encoding rules
104 BER bit error {rate,ratio}
105 BFD binary {file,format} descriptor
106 BFKL big fscking kernel lock
107 BFS breadth-first search
108 BFT binary file transfer
110 BGP Border Gateway Protocol
111 BIND Berkeley Internet Name Daemon
112 BIOS Basic Input/Output System
113 BIOS built-in operating system
114 BIST built-in self-test
115 BIU bus interface unit
116 BKDG BIOS and kernel developer's guide
117 BLAS basic linear algebra subprograms
118 BLC back light control
119 BLOB binary large object
121 BMC baseboard management controller
122 BMIC bus master interface controller
126 BOF beginning of file
127 BOM beginning of message
131 BPB BIOS parameter block
132 BPF Berkeley Packet Filter
134 BPM business process modelling
136 BPSK binary phase shift keying
137 BQS Berkeley quality software
138 BRE basic regular expression
141 BSA basic service area
142 BSD Berkeley Software Distribution
144 BSOD blue screen of death
145 BSP binary space partition
146 BSP bootstrap processor
148 BSS basic service set
149 BSS block started by symbol
150 BSSID basic service set identifier
154 BTC bit test [and] complement
155 BTR bit test [and] reset
156 BTS bit test [and] set
160 CA certificate authority
161 CAD computer-aided design
162 CAM computer assisted manufacturing
163 CAM conditional access module
164 CAM content addressable memory
165 CARP Common Address Redundancy Protocol
166 CAS column address strobe
168 CAS computer algebra system
169 CASE computer aided software engineering
170 CAU control access unit
171 CAV constant angular velocity
172 CBC cipher block chaining
173 CBR constant bit rate
175 CCD charge coupled device
176 CCI co-channel interferer
179 CDDA compact disc digital audio
180 CDMA code division multiple access
181 CDRAM cache dynamic random access memory
182 CER canonical encoding rules
184 CFG context-free grammar
185 CFG control-flow graph
187 CGA Color Graphics Adapter
188 CGI common gateway interface
189 CGN Carrier-Grade NAT
190 CHAP Challenge-Handshake Authentication Protocol
191 CHS cylinder/head/sector
192 CI continuous integration
193 CI {common,component} interface
194 CIDR Classless Inter-Domain Routing
195 CIFS Common Internet File System
196 CIL common intermediate language
197 CIR carrier-to-interference ratio
198 CIS contact image sensor
199 CISC complex instruction set {computer,computing}
200 CJK Chinese, Japanese, [and] Korean
201 CLF common log format
202 CLI command line interface
203 CLR common language runtime
204 CLTT closed loop thermal throttling
205 CLUT color look-up table
206 CLV constant linear velocity
207 CM configuration management
208 CMA concert multithread architecture
209 CMI control management interface
210 CMI control method interface
211 CMOS complementary metal-oxide-semiconductor
212 CMP chip multi-processing
213 CMS content management system
214 CMYK cyan magenta yellow black
215 CN {common,canonical} name
216 CNC computer numerical control
217 CNR carrier-to-noise ratio
218 COF current operating frequency
219 COFDM coded orthogonal frequency division multiplexing
220 COFF common object file format
221 COM component object model
222 COMA cache-only memory architecture
223 CORBA common object request broker architecture
226 CPB core performance boost
227 CPE common phase error
228 CPG clock pulse generator
229 CPL current privilege level
230 CPLD complex programmable logic device
232 CPS characters per second
233 CPT command pass through
234 CPU central processing unit
236 CRC cyclic redundancy check
237 CRL carrier recovery loop
238 CRLF carriage return line feed
244 CSI channel state information
245 CSI common system interface
246 CSMA carrier sense multiple access
247 CSMA/CA carrier sense multiple access with collision avoidance
248 CSMA/CD carrier sense multiple access with collision detection
249 CSR control [and] status registers
250 CSRG Computer Systems Research Group
251 CSS cascading style sheets
252 CSV comma-separated values
255 CUA common user access
256 CUT coordinated universal time
258 CVS Concurrent Versions System
259 DA destination address
260 DAA distributed application architecture
261 DAB digital audio broadcasting
262 DAC digital [to] analog converter
263 DAC discretionary access control
264 DAD duplicate address detection
266 DAP Directory Access Protocol
267 DAT digital audio tape
268 DAT dynamic acceleration technology
270 DBA database administrator
271 DBA dynamic bandwidth allocation
273 DBC design by contract
274 DBL dynamic buffer limiting
275 DBMS database management system
278 DCC Direct Client-to-Client
279 DCC direct cable connect
280 DCD data carrier detect
281 DCE data control equipment
282 DCE distributed computing environment
283 DCOM distributed component object model
284 DCOP Desktop COmmunication Protocol
285 DCS data collection systems
286 DCT discrete cosine transform
288 DDC display data channel
289 DDE dynamic data exchange
290 DDK device driver kit
291 DDL data description language
293 DDS direct digital sound
294 DDWG Digital Display Working Group
295 DE debugging extensions
296 DE desktop environment
297 DEA data encryption algorithm
298 DEK data encryption key
299 DEP data execution prevention
300 DER distinguished encoding rules
301 DES Data Encryption Standard
303 DFA deterministic finite automaton
304 DFC data flow control
305 DFS depth first search
306 DFS distributed file system
307 DFT diagnostic function test
308 DFT discrete Fourier transform
309 DGL data generation language
311 DHCP Dynamic Host Configuration Protocol
312 DIFS distributed inter-frame space
313 DIMM dual inline memory module
314 DIRT design in real time
316 DL discrete logarithm
319 DLL dynamic link library
320 DLP discrete logarithm problem
321 DMA direct memory access
322 DMI desktop management interface
323 DMS document management system
324 DMT discrete multitone modulation
325 DNARD Digital network appliance reference design
327 DNS Domain Name System
328 DOE distributed object environment
330 DOM document object model
331 DOS denial of service
332 DOS disk operating system
334 DPC deferred procedure call
335 DPCM differential pulse code modulation
336 DPD dead peer detection
337 DPI deep packet inspection
339 DPL descriptor privilege level
340 DPS Display PostScript
341 DPST display power savings technology
342 DRAM dynamic random access memory
343 DRI direct rendering infrastructure
344 DRM digital rights management
345 DRRS display refresh rate switching
347 DSA digital signature algorithm
348 DSB double-sideband modulation
349 DSDT differentiated system descriptor table
350 DSL digital subscriber line
351 DSL domain specific language
352 DSLAM digital subscriber line access multiplexer
353 DSN delivery status notification
354 DSO dynamic shared object
355 DSP digital signal processor
356 DSSS direct sequence spread spectrum
357 DTD document type definition
358 DTE data terminal equipment
359 DTE dumb terminal emulator
360 DTL diode-transistor logic
361 DTS digital thermal sensor
362 DUT device under test
363 DVB digital video broadcasting
364 DVCS distributed version control system
365 DVD digital versatile disc
366 DVFS dynamic voltage and frequency scaling
367 DVI device independent
368 DVI Digital Visual Interface
369 DVR digital video recorder
370 E-XER extended XML encoding rules
371 EABI embedded-application binary interface
372 EAP Extensible Authentication Protocol
373 EBR extended boot record
375 ECC error correction code
376 ECDL elliptical curve discrete logarithm
377 ECDSA elliptical curve digital signature algorithm
378 ECL emitter-coupled logic
379 ECN explicit congestion notification
380 ECP enhanced capability port
381 ECS enhanced chip set
382 ECS extended configuration space
383 EDAT enhanced dynamic acceleration technology
384 EDGE explicit data graph execution
385 EDID extended display identification data
386 EDO extended data out
387 EDS electronical data sheet
388 EEPROM electrically erasable programmable read only memory
389 EFI extensible firmware interface
390 EFL emitter follower logic
391 EFM eight to fourteen modulation
392 EGA Enhanced Graphics Adapter
393 EGP exterior gateway protocol
396 EISA extended industry standard architecture
397 ELF executable and linking format
398 ELS entry level system
399 EMI electro-magnetic interference
400 EMP electro-magnetic pulse
401 EMR electro-magnetic radiation
405 EOT end of transmission
406 EPIC explicitly parallel instruction computing
407 EPP enhanced parallel port
408 EPRML extended partial response, maximum likelihood
409 EPROM erasable programmable read only memory
410 ERD emergency recovery disk
411 ERD entity relationship diagram
412 ERE extended regular expression
413 ESDRAM enhanced synchronous dynamic random access memory
414 ESS electronic switching system
415 ESS extended service set
416 ESSID extended service set identifier
417 EST enhanced speedstep
418 ETL extract, transform, load
420 EULA end user license agreement
421 FAT file allocation table
422 FBRAM frame buffer random access memory
423 FCL fiber channel loop
424 FCS frame check sequence
425 FDC floppy disk controller
426 FDD floppy disk drive
427 FDDI fiber distributed data interface
428 FDE full disk encryption
429 FEA finite element analysis
430 FEC forward error correction
431 FET field-effect transistor
433 FFH functional fixed hardware
434 FFI foreign function interface
435 FFM focus follows mouse
438 FFT fast Fourier transform
440 FHSS frequency hop spread spectrum
441 FID frequency identifier
442 FIFO first in, first out
443 FILO first in, last out
445 FLOPS floating [point] operations per second
446 FLOSS free/libre/open source software
447 FM frequency modulation
449 FOSS free/open source software
450 FPGA field programmable gate array
452 FPR floating point register
453 FPU floating point unit
454 FQDN fully qualified domain name
455 FRR false rejection rate
456 FRU field replaceable unit
459 FSCK file system check
460 FSF Free Software Foundation
461 FSK frequency shift keying
462 FSM finite-state machine
463 FTA fault tree analysis
464 FTL flash translation layer
465 FTP File Transfer Protocol
466 FTPS File Transfer Protocol Secure
467 FUS fast user switching
469 FWS folding white space
470 GAL generic array logic
471 GAS generic address structure
473 GCR group-coded recording
474 GDT global descriptor table
475 GEM graphics environment manager
476 GEM graphics execution manager
477 GENA general event notification architecture
478 GHC Glasgow Haskell compiler
480 GIF graphics interchange format
481 GMCH graphics and memory controller hub
483 GOT global offset table
484 GPE general purpose event
485 GPF general protection fault
486 GPG GNU Privacy Guard
487 GPL [GNU] General Public License
488 GPR general purpose register
489 GPS generalized processor sharing
490 GPT GUID partition table
491 GPU graphics processing unit
493 GRE generic routing encapsulation
494 GSI global system interrupt
495 GUI graphical user interface
496 GUID globally unique identifier
498 HAL hardware abstraction layer
499 HAT hashed array tree
501 HCF halt and catch fire
502 HCI host controller interface
503 HCI human-computer interaction
504 HCL hardware compatibility list
505 HDCP High-bandwidth Digital Content Protection
507 HDL hardware description language
508 HDMI High-Definition Multimedia Interface
509 HDTV high-definition television
511 HFM highest frequency mode
512 HID human interface device
513 HLL high-level language
515 HMI human-machine interface
516 HOOD hierarchical object oriented design
518 HPC high performance computing
519 HPET high precision event timer
521 HTC hardware thermal control
522 HTCC high temperature co-fired ceramic
523 HTML HyperText Markup Language
524 HTT hyper-threading technology
525 HTTP Hypertext Transfer Protocol
526 HTTPS Hypertext Transfer Protocol Secure
527 HVM hardware virtual machine
529 I2O intelligent input/output
530 IA information assurance
531 IANA Internet Assigned Numbers Authority
532 IBC iterated block cipher
533 IBM International Business Machines
534 IBS instruction based sampling
535 IBSS independent basic service set
536 IC integrated circuit
537 ICA independent computer architecture
538 ICB Internet Citizen's Band
539 ICE in-circuit emulator
540 ICE internal compiler error
541 ICH I/O controller hub
542 ICMP Internet Control Message Protocol
543 ICT information and communications technology
544 ICW initialization command word
545 IDA Intel dynamic acceleration
546 IDCMP Intuition direct communication message port
547 IDE integrated development environment
548 IDE integrated drive electronics
549 IDPS intrusion detection [and] prevention system
550 IDRP inter-domain routing protocol
551 IDS intrusion detection system
552 IDT interrupt descriptor table
554 IEC International Electrotechnical Commission
555 IEEE Institute of Electrical and Electronics Engineers
556 IESG Internet Engineering Steering Group
557 IETF Internet Engineering Task Force
558 IF intermediate frequency
559 IFCM isochronous flow control mode
560 IFF Interchange File Format
561 IGD Internet gateway device
562 IGMP Internet Group Management Protocol
563 IGP interior gateway protocol
564 IHV independent hardware vendor
565 IKE Internet key exchange
566 ILM internal loopback mode
567 ILOM integrated lights-out management
568 ILP instruction level parallelism
570 IMAP Internet Message Access Protocol
571 IMC integrated memory controller
572 IMCR interrupt mode configuration register
573 IMR interrupt mask register
574 IMS information management system
575 INCITS InterNational Committee for Information Technology Standards
577 IOCTL input/output control
578 IOMMU input/output memory management unit
579 IOT Internet of Things
581 IP intellectual property
582 IPC interprocess communication
583 IPE integrated programming environment
584 IPI interprocessor interrupt
585 IPNG Internet Protocol, Next Generation
586 IPS in-plane switching
587 IPS intrusion prevention system
588 IPSEC Internet Protocol Security
589 IRC Internet Relay Chat
590 IRDA infrared data association
591 IRQ interrupt request
592 IRQL interrupt request level
593 IRR interrupt request register
594 IRTF Internet Research Task Force
595 IS information system
596 ISA industry standard architecture
597 ISA instruction set architecture
598 ISDN integrated services digital network
599 ISI inter-symbol interference
600 ISM industrial, scientific, [and] medical
601 ISN initial serial number
602 ISO International Standards Organization
603 ISOC Internet Society
604 ISP Internet service provider
605 ISR in-service register
606 ISR interrupt service routine
607 IST interrupt stack table
608 ISV independent software vendor
609 IT information technology
610 ITB Intel Turbo Boost
611 IV initialization vector
612 IVT interrupt vector table
613 JBOD just a bunch of disks
614 JFET junction [gate] field-effect transistor
616 JPEG Joint Photographic Experts Group
617 JRE Java Runtime Environment
618 JTAG joint test action group
623 KLOC thousand lines of code
624 KMS kernel-mode setting
625 KPI kernel programming interface
626 KVA kernel virtual address
627 KVM kernel virtual machine
628 KVM kernel virtual memory
629 KVM keyboard, video, [and] mouse
630 LAMP Linux Apache MySQL {Perl,PHP,Python}
631 LAN local area network
632 LAPIC local advanced programmable interrupt controller
633 LAR load access rights
634 LBA logical block addressing
635 LBS location-based service
636 LCD liquid crystal display
637 LCP link control protocol
638 LDA local delivery agent
639 LDAP Lightweight Directory Access Protocol
640 LDR light-dependent resistor
641 LDT local descriptor table
643 LED light emitting diode
644 LER label edge router
647 LFM lowest frequency mode
649 LFO low-frequency oscillation
650 LFS log-structured file system
651 LFU least frequently used
653 LIFO last in, first out
655 LILO last in, last out
657 LIR local Internet registry
658 LKM {Linux,loadable} kernel module
659 LKML Linux kernel mailing list
661 LL/SC load linked/store conditional
662 LLC logical link control
663 LLDP link layer discovery protocol
665 LLMNR link-local multicast name resolution
666 LLVM Low Level Virtual Machine
668 LMM link management mode
669 LNO loop nest optimization
671 LOM lights-out management
673 LPS local positioning system
674 LRC longitudinal redundancy check
675 LRM left-to-right mark
676 LRO left-to-right override
677 LRU least recently used
678 LSB Linux standards base
679 LSB least significant {bit,byte}
680 LSI large scale integration
681 LSL load segment limit
683 LSN log sequence number
684 LSR label switch router
685 LTCC low temperature co-fired ceramic
686 LTO link time optimization
688 LTR load task register
689 LTR letter(-sized paper)
690 LUN logical unit number
692 LVM logical volume management
693 LVT local vector table
694 LWP light-weight process
696 MAC mandatory access control
697 MAC medium access control
698 MAC message authentication {check,code}
699 MADT multiple APIC descriptor table
701 MBR master boot record
702 MBS megabits per second
704 MCA machine check architecture
705 MCA MicroChannel architecture
706 MCC multiversion concurrency control
707 MCE machine check exception
708 MCGA Multi-Color Graphics Array
709 MCH memory controller hub
710 MCM multi-chip module
711 MCQ memory controlled queue
713 MDA mail delivery agent
714 MDA Monochrome Display Adapter
715 MDRAM multibank dynamic random access memory
716 MESI modified, exclusive, shared, invalid
717 MFC merge from current
718 MFC Microsoft Foundation Classes
719 MFM modified frequency modulation
720 MI machine-independent
721 MIB management information base
722 MIC message integrity {check,code}
723 MID mobile Internet device
724 MIDI musical instrument digital interface
725 MIF management information format
726 MIM man in the middle
727 MIMD multiple instruction, multiple data
728 MIME Multipurpose Internet Mail Extensions
729 MIMO multiple input multiple output
730 MIPS million instructions per second
731 MISD multiple instruction, single data
732 MIT Massachusetts Institute of Technology
733 MITM man in the middle
738 ML maximum likelihood
740 MLHP micro loop heat pipe
741 MMIC monolithic microwave integrated circuit
742 MMIO memory mapped input/output
743 MMORPG massive multiplayer online role playing game
744 MMU memory management unit
745 MMX matrix math extension
746 MMX multimedia extension
747 MMX multiple math extension
749 MOESI modified, owned, exclusive, shared, invalid
750 MOF maximum operating frequency
751 MOSFET metal-oxide-semiconductor field-effect transistor
752 MOSI modified, owned, shared, invalid
755 MP {multiprocessing,multiprocessor}
756 MPEG moving picture experts group
757 MPI message passing interface
758 MPLS Multiprotocol Label Switching
759 MPP massively parallel processor
760 MPS memory pool system
761 MPS multiprocessor specification
763 MRU most recently used
765 MSB most significant {bit,byte}
766 MSE mean square error
767 MSF minutes seconds frames
768 MSI message signaled interrupt
769 MSI modified, shared, invalid
770 MSR machine state register
771 MSS maximum segment size
772 MT machine translation
773 MTA mail transfer agent
774 MTBF mean time between failures
775 MTP media transfer protocol
776 MTRR memory type range register
777 MTTF mean time to failure
778 MTU maximum transmission unit
780 MUD multi-user domain
781 MVCC multiversion concurrency control
782 MWE module width encoding
784 NACK negative acknowledgement
786 NAPT Network Address Port Translation
787 NAS network attached storage
788 NAT network address translation
789 NAV network allocation vector
791 NCO numerically-controlled oscillator
792 NCP Network Control Protocol
793 NCQ native command queuing
794 ND neighbor discovery
795 NDFA nondeterministic finite automaton
797 NFA nondeterministic finite automaton
798 NFS network file system
799 NIA next instruction address
800 NIC network information center
801 NIC network interface card
802 NIDS network intrusion detection system
803 NIP network interface protocol
804 NIPS network intrusion prevention system
805 NIS network information service
806 NLS native language support
807 NMI non-maskable interrupt
808 NNTP Network News Transfer Protocol
809 NOC network operations center
811 NOS network operating system
812 NP nondeterministic polynomial time
813 NRZ non-return to zero
814 NSA National Security Agency
815 NTM non-deterministic Turing machine
816 NTP Network Time Protocol
817 NUMA non-uniform memory access
818 NVRAM non-volatile random access memory
821 OAEP optimal asymmetric encryption padding
823 OBOE off by one error
824 OCL object constraint language
825 OCR optical character recognition
826 ODCM on-demand clock modulation
827 ODT on-die termination
828 OEM original equipment manufacturer
829 OFDM orthogonal frequency division multiplexing
830 OFET organic field-effect transistor
831 OLAP online analytical processing
832 OLE object linking and embedding
833 OLTP online transaction processing
834 ONFI open nand flash interface
838 OOE out of order execution
841 OOP object oriented programming
842 OOPS object oriented programming systems
843 OOSE object oriented software engineering
844 OPM operations per minute
845 OPS operations per second
846 OQL Object Query Language
847 ORB object request broker
848 ORM object-relational mapping
850 OSD open source definition
851 OSF open software foundation
852 OSI Open Source Initiative
853 OSI open systems interconnection
854 OSPF open shortest path first
855 OSPM OS power management
856 OSS open sound system
857 OSS open source software
858 OSVW operating system visible workarounds
859 OTP one time password
860 OTP open telecom platform
861 OU organizational unit
862 OUI organizationally unique identifier
863 OWL Web Ontology Language
868 PAC phase-amplitude converter
869 PAE physical address extension
870 PAL phase alternating line
871 PAL programmable array logic
872 PAM pluggable authentication modules
873 PAM pulse amplitude modulation
874 PAP password authentication protocol
875 PAT page attribute table
876 PAT port address translation
878 PAX portable archive exchange
879 PBE pending break encoding
880 PBE programming by example
883 PCB printed circuit board
884 PCC Portable C Compiler
885 PCD page-level cache disable
886 PCE performance-monitor counter enable
887 PCI peripheral component interconnect
888 PCM phase change memory
889 PCM pulse code modulation
890 PCMCIA Personal Computer Memory Card International Association
891 PCP Port Control Protocol
893 PDA personal digital assistant
894 PDA pushdown automaton
895 PDAG propositional directed acyclic graph
896 PDB power distribution board
897 PDF portable document format
898 PDM pulse-duration modulation
899 PDN pull-down network
900 PDP page {descriptor,directory} page
901 PDS product data sheet
902 PDU protocol data unit
904 PECI platform environment control interface
905 PEP protocol extension protocol
906 PER packed encoding rules
907 PFS perfect forward secrecy
908 PGAS partitioned global address space
909 PGE page global enable
910 PGP Pretty Good Privacy
912 PHP PHP: Hypertext Preprocessor
913 PIC position independent code
914 PIC programmable interrupt controller
915 PICNIC problem in chair, not in computer
917 PIE position independent executable
918 PIM personal information manager
919 PIM platform-independent model
920 PIO programmed input/output
921 PIPT physically indexed, physically tagged
922 PIQ prefetch input queue
923 PIT programmable interrupt timer
924 PIV personal identity verification
925 PKCS public-key cryptography standards
926 PKI public key infrastructure
927 PLC programmable logic controller
928 PLD programmable logic device
929 PLL phase locked loop
931 PLTM package level thermal management
933 PM {phase,pulse} modulation
934 PME power management event
935 PMI platform management interrupt
936 PMIO port-mapped input/output
937 PMT photo-multiplier tube
938 PMU power management unit
939 PNG portable network graphics
941 POE power over ethernet
942 POF probability of failure
943 POP Post Office Protocol
944 POP power on password
945 POSIX Portable Operating System Interface [for Unix]
946 POST power on self test
947 POTS plain old telephone system
949 PPB PCI [to] PCI bridge
953 PPP Point-to-Point Protocol
954 PPPOA Point-to-Point Protocol over ATM
955 PPPOE Point-to-Point Protocol over Ethernet
956 PPU physics processing unit
957 PRBS pseudo-random bit sequence
958 PRML partial response, maximum likelihood
959 PRN pseudo random {noise,number}
960 PRNG pseudo random number generator
961 PROM programmable read only memory
962 PSD power spectral density
963 PSE page size extensions
964 PSK phase shift keying
966 PSTN public switched telephone network
967 PSW program status word
969 PTLA pseudo top level aggregator
971 PTV perceived target value
973 PUN physical unit number
975 PVG physical volume group
976 PVI protected-mode virtual interrupt
977 PWM pulse width modulation
978 PXE preboot execution environment
980 QAM quadrature amplitude modulation
981 QAM quality assurance management
984 QDI quasi delay insensitive
985 QOS quality of service
991 RA router advertisement
992 RAD rapid application development
993 RAID redundant array of {independent,inexpensive} disks
994 RAM random access memory
995 RAS reliability, availability and serviceability
996 RAS remote access service
997 RAS restartable atomic sequence
998 RAS row address strobe
999 RBF radial basis function
1001 RC release candidate
1003 RCS Revision Control System
1004 RCS revision control system
1005 RCU read, copy, update
1006 RDB Rigid Disk Block
1007 RDBMS relational database management system
1008 RDF Resource Description Framework
1009 RDM relational data model
1010 RDMA remote direct memory access
1011 RE regular expression
1012 REST representational state transfer
1014 RFI radio frequency interference
1015 RFO request for ownership
1017 RGBA red green blue alpha
1019 RHEL Red Hat Enterprise Linux
1021 RIB routing information base
1022 RIFF Resource Interchange File Format
1023 RIP Routing Information Protocol
1024 RIR regional Internet registry
1025 RISC reduced instruction set {computer,computing}
1026 RKM ROM Kernel Manual
1027 RLE run length encoding
1028 RLL run length limited
1029 RLO right-to-left override
1031 RMI remote method invocation
1032 RMPM rapid memory power management
1033 RMS root mean square
1034 RMW read, modify, write
1035 RNG random number generator
1036 ROM read only memory
1037 RPC remote procedure call
1038 RPL requested privilege level
1039 RPM revolutions per minute
1040 RPN reverse Polish notation
1041 RR random replacement
1044 RSA Rivest, Shamir, [and] Adleman
1045 RSIP Realm Specific IP
1046 RSS really simple syndication
1047 RSS residual sum of squares
1050 RTC real time computing
1051 RTF rich text format
1052 RTL register transfer language
1053 RTL resistor-transistor logic
1055 RTOS real time operating system
1058 RUP rational unified process
1059 RWM read-write memory
1060 RX {receive,receiver}
1061 S/PDIF Sony/Philips Digital Interface Format
1062 SA security advisory
1063 SA security association
1065 SA structured analysis
1066 SAAS software as a service
1067 SACD super audio compact disc
1068 SAD security association database
1069 SAL system abstraction layer
1070 SAM serial access memory
1071 SAM sum addressed memory
1072 SAN storage area network
1073 SAPIC streamlined advanced programmable interrupt controller
1074 SASD structured analysis, structured design
1075 SASI Shugart Associates System Interface
1076 SASL simple authentication [and] security layer
1077 SATA serial advanced technology attachment
1079 SBU standard build unit
1080 SC store conditional
1081 SCA source code analyzer
1082 SCADA supervisory control and data acquisition
1083 SCC single chip cloud
1084 SCC source code control
1085 SCCS Source Code Control System
1086 SCI scalable coherent interface
1087 SCI system control interrupt
1088 SCM software configuration management
1089 SCM source code management
1090 SCM storage-class memory
1092 SCSI Small Computer System Interface
1093 SCTP Stream Control Transmission Protocol
1094 SDI symbol deinterleave
1095 SDK software development kit
1096 SDL Simple Declarative Language
1097 SDL Simple Direct-media Layer
1098 SDRAM synchronous dynamic random access memory
1099 SDT syntax-directed translation
1100 SEGV segmentation violation
1101 SEO search engine optimization
1102 SFC sequential function chart
1103 SFI simple firmware interface
1104 SFI software fault isolation
1105 SFTP SSH File Transfer Protocol
1106 SFTP Serial File Transfer Protocol
1107 SFTP Simple File Transfer Protocol
1108 SGRAM synchronous graphics random access memory
1109 SIFS short inter-frame space
1110 SIMD single instruction, multiple data
1111 SIMM single inline memory module
1112 SIP Session Initiation Protocol
1113 SIR signal-to-interference ratio
1115 SISD single instruction, single data
1116 SLC single-level cell
1117 SLDRAM synchronous-link dynamic random access memory
1118 SLED single large expensive disk
1119 SLI scalable link interface
1120 SLI scan-line interleave
1121 SLOC source lines of code
1123 SMA smart memory access
1124 SMAF system management action field
1125 SMART self-monitoring analysis and reporting technology
1126 SMBIOS System Management BIOS
1127 SMC system management controller
1128 SMI structure of management information
1129 SMI system management interrupt
1130 SMM system management mode
1131 SMP symmetric multiprocessing
1132 SMT simultaneous multithreading
1133 SMTP Simple Mail Transfer Protocol
1134 SMU system management unit
1135 SNMP Simple Network Management Protocol
1136 SNR signal-to-noise ratio
1137 SOA service oriented architecture
1138 SOAP Simple Object Access Protocol
1142 SOHO small office/home office
1146 SPARC scalable processor architecture
1147 SPARQL SPARQL Protocol and RDF Query Language
1148 SPD security policy database
1149 SPD serial presence detect
1150 SPDIF Sony/Philips digital interface format
1151 SPI serial peripheral interface
1152 SPI stateful packet inspection
1153 SPMD single process, multiple data
1154 SPR special purpose register
1155 SPT sectors per track
1156 SQA software quality assurance
1157 SQL Structured Query Language
1158 SRAM static random access memory
1159 SRC sample rate conversion
1162 SSB single-sideband modulation
1163 SSD solid state drive
1164 SSE streaming SIMD extensions
1165 SSFDC solid state floppy disc card
1167 SSI server side includes
1168 SSID service set identifier
1169 SSL secure sockets layer
1170 SSP stack smashing protection
1171 STC software thermal control
1172 STD state transition diagram
1173 STP Spanning Tree Protocol
1174 STP shielded twisted pair
1175 SUS Single Unix Specification
1176 SUT system under test
1177 SVG scalable vector graphics
1178 SVGA Super Video Graphics Array
1179 SVM secure virtual machine
1180 SVM support vector machine
1181 SVR System V Release
1183 SWIG simplified wrapper [and] interface generator
1184 SYR symbol timing recovery
1186 TA transmitter address
1187 TAI international atomic time
1189 TAOCP The Art of Computer Programming
1190 TAP Test Anything Protocol
1193 TCB trace capture buffer
1194 TCB trusted computing base
1195 TCC thermal control circuit
1196 TCL tool command language
1197 TCP Transmission Control Protocol
1198 TCQ tagged command queueing
1199 TDC time [to] digital converter
1200 TDD test driven development
1201 TDD time division duplex
1202 TDM time division multiplexing
1203 TDMA time division multiple access
1204 TDOA time difference of arrival
1205 TDP thermal design {point,power}
1206 TECO Text Editor and Corrector
1207 TFT thin film transistor
1208 TFTP Trivial File Transfer Protocol
1210 TIFF tagged image file format
1213 TKIP Temporal Key Integrity Protocol
1214 TLA top level aggregator
1215 TLB translation lookaside buffer
1216 TLD top level domain
1217 TLS thread local storage
1218 TLS transport layer security
1221 TMDS transition minimized differential signaling
1224 TOS terms of service
1225 TOS trusted operating system
1227 TP transaction processing
1229 TPM transactions per minute
1230 TPM trusted platform module
1231 TPR task priority register
1232 TPS transactions per second
1233 TPS transmission parameters signaling
1236 TRL timing recovery loop
1237 TRNG true random number generator
1238 TS terminal services
1242 TSC time stamp counter
1243 TSD time stamp disable
1245 TSO time sharing option
1246 TSP Time-Stamp Protocol
1247 TSP Tunnel Setup Protocol
1248 TSP time synchronization protocol
1249 TSP traveling salesman problem
1250 TSS task state segment
1252 TTL transistor-transistor logic
1253 TTM translation table maps
1255 TUI {terminal,text-based,textual} user interface
1256 TX {transmit out,transmitter}
1258 UAC user {access,account} control
1259 UART universal asynchronous receiver/transmitter
1260 UAT user acceptance testing
1262 UCS uniform-cost search
1264 UDO ultra density optical
1265 UDP User Datagram Protocol
1266 UFS Unix File System
1269 UID unique identifier
1272 UMA uniform memory access
1273 UMA upper memory area
1274 UMB upper memory block
1275 UML unified modeling language
1276 UMPC ultra-mobile PC
1277 UPNP universal plug and play
1278 UPS uninterruptible power supply
1279 URI uniform resource identifier
1280 URL uniform resource locator
1281 URN uniform resource name
1282 USART universal synchronous/asynchronous receiver/transmitter
1283 USB universal serial bus
1284 USWC uncacheable speculative write combining
1286 UTC coordinated universal time
1287 UTP unshielded twisted pair
1288 UUCP Unix-to-Unix Copy Protocol
1289 UUID universally unique identifier
1290 UUOC useless use of cat
1293 VA vertical alignment
1296 VAX virtual address extension
1298 VCA variable-gain amplifier
1299 VCC common collector voltage
1300 VCF voltage-controlled filter
1301 VCM virtual channel memory
1302 VCO voltage-controlled oscillator
1303 VCS version control system
1304 VESA Video Electronics Standards Association
1305 VFO variable-frequency oscillator
1307 VGA Video Graphics Array
1308 VHDCI very high density cable interconnect
1309 VID voltage level identifier
1310 VIPT virtually indexed, physically tagged
1311 VIVT virtually indexed, virtually tagged
1312 VLAN virtual local area network
1313 VLIW very long instruction word
1314 VLSI very large scale integration
1315 VLSM variable length subnet mask
1316 VM virtual {machine,memory}
1317 VME virtual mode extension
1318 VMX vector multimedia extensions
1319 VMX virtual machine extensions
1321 VPN virtual private network
1323 VRAM video random access memory
1324 VRM voltage regulator module
1325 VRRP Virtual Router Redundancy Protocol
1327 W3C World Wide Web Consortium
1328 WAN wide area network
1329 WAP Wireless Application Protocol
1330 WAP wireless access point
1332 WEP Wired Equivalent Privacy
1333 WFI wait for interrupt
1334 WFQ weighted fair queuing
1336 WIFI wireless fidelity
1337 WLAN wireless local area network
1339 WMI Windows Management Instrumentation
1343 WORM write once read many
1347 WPA Wi-Fi Protected Access
1348 WPA2 Wi-Fi Protected Access II
1349 WPS Wi-Fi Protected Setup
1350 WRAM window random access memory
1352 WTC write through caching
1353 WWAN wireless wide area network
1355 WYSIWYG what you see is what you get
1357 XDMCP X Display Manager control protocol
1358 XER XML encoding rules
1359 XGA Extended Graphics Array
1360 XIP execute in place
1361 XML Extensible Markup Language
1363 XP extreme programming
1364 XSI X/Open System Interface
1365 XSL extensible stylesheet language
1366 XSS cross site scripting
1367 XT extended technology
1368 XUL XML user interface language
1369 YACC yet another compiler compiler
1370 YAWPFAPR you are welcome; please file a problem report
1373 ZBR zone bit recording
1374 ZFOD zero-filled on demand
1375 ZIF zero insertion force
1376 ZIFS zero insertion force socket
1377 ZMA zone multicast address