acronyms.comp revision 1.235
1$NetBSD: acronyms.comp,v 1.235 2019/03/23 17:56:23 sevan Exp $ 23WHS three-way handshake 38VSB 8-state vestigial side band modulation 4AA anti-aliasing 5AAA authentication, authorization, [and] accounting 6AAT average access time 7ABI application binary interface 8ABR available bit rate 9ABRT automatic bug reporting tool 10AC alternating current 11ACI adjacent channel interferer 12ACID atomicity, consistency, isolation, durability 13ACK Amsterdam compiler kit 14ACK acknowledgement 15ACL access control list 16ACL active current loop 17ACL asynchronous connection less 18ACP auxiliary control {process,program} 19ACPI advanced configuration and power interface 20ACS access control set 21ACU automatic calling unit 22ADB Apple desktop bus 23ADC analog [to] digital converter 24ADD acronym driven development 25ADO active data objects 26ADP automatic data processing 27ADPCM adaptive differential pulse code modulation 28ADS alternate data stream 29ADSL asymmetric digital subscriber line 30ADT abstract data type 31AER advanced error reporting 32AES Advanced Encryption Standard 33AFP Apple Filing Protocol 34AFS Andrew File System 35AGC automatic gain control 36AGP accelerated graphics port 37AI analog input 38AI artificial intelligence 39AL access list 40AL active link 41ALE address latch enable 42ALS ambient light sensor 43ALU arithmetic and logical unit 44ALUA asymmetric logical unit access 45AM access method 46AM alignment mask 47AM amplitude modulation 48AMD Advanced Micro Devices Inc 49AMDD Agile model-driven development 50AMI alternate mark inversion 51AMP asymmetric multiprocessing 52AMQP advanced message queuing protocol 53AMT active management technology 54AN Arabic number 55ANR application not responding 56ANSI American National Standards Institute 57AO analog output 58AOL Alert-on-LAN 59AOS add or subtract 60AP access point 61AP application processor 62API application programming interface 63APEI ACPI platform error interface 64APIC advanced programmable interrupt controller 65APIPA automatic private IP addressing 66APM advanced power management 67APM application performance management 68APU accelerated processing unit 69APT advanced persistent threat 70AQM active queue management 71ARAT always running APIC timer 72ARC adaptive replacement cache 73ARC Advanced RISC Computing 74ARC automatic reference counting 75ARM Advanced RISC Machines 76ARP Address Resolution Protocol 77ARPA Advanced Research Projects Agency 78ARQ automatic repeat request 79ARR address range register 80ARU audio response unit 81AS autonomous system 82ASA Adaptive Security Appliance 83ASAN Address Sanitizer 84ASC advanced smart cache 85ASCII American Standard Code for Information Interchange 86ASD agile software development 87ASE advanced software environment 88ASF alert standard format 89ASIC application-specific integrated circuit 90ASK amplitude shift keying 91ASLR address space layout randomization 92ASN autonomous system number 93ASPM active state power management 94ASQ automated software quality 95ASR address space register 96AST abstract syntax tree 97AST asynchronous system trap 98AT access time 99AT advanced technology 100ATA advanced technology attachment 101ATAPI advanced technology attachment packet interface 102ATC address translation cache 103ATM asynchronous transfer mode 104ATX advanced technology extended 105AV anti virus 106AVL Adelson-Velsky-Landis 107AVX advanced vector extensions 108BA byte align 109BAL basic assembly language 110BAR base address register 111BBS bulletin board system 112BCC blind carbon copy 113BCD binary coded decimal 114BCR byte count register 115BCS base configuration space 116BD baud 117BDD binary decision diagram 118BDI bit deinterleave 119BDUF big design up front 120BEDO burst extended data output 121BER basic encoding rules 122BER bit error {rate,ratio} 123BERT boot error record table 124BFD binary {file,format} descriptor 125BFKL big fscking kernel lock 126BFS breadth-first search 127BFT binary file transfer 128BGA ball grid array 129BGP Border Gateway Protocol 130BGPSEC BGP Security 131BIND Berkeley Internet Name Daemon 132BIOS Basic Input/Output System 133BIOS built-in operating system 134BIST built-in self-test 135BIU bus interface unit 136BKDG BIOS and kernel developer's guide 137BLAS basic linear algebra subprograms 138BLC back light control 139BLOB binary large object 140BM bus master 141BMC baseboard management controller 142BMIC bus master interface controller 143BN boundary neutral 144BNF Backus-Naur form 145BO binary output 146BOF beginning of file 147BOM beginning of message 148BOM byte order mark 149BP base pointer 150BP boot processor 151BPB BIOS parameter block 152BPDU bridge protocol data unit 153BPF Berkeley Packet Filter 154BPI bits per inch 155BPM business process modelling 156BPS bits per second 157BPSK binary phase shift keying 158BQS Berkeley quality software 159BRE basic regular expression 160BS backspace 161BS binary sequence 162BSA basic service area 163BSD Berkeley Software Distribution 164BSDP Boot Service Discovery Protocol 165BSF bit scan forward 166BSOD blue screen of death 167BSP binary space partition 168BSP board support package 169BSP bootstrap processor 170BSR bit scan reverse 171BSS basic service set 172BSS block started by symbol 173BSSID basic service set identifier 174BT BitTorrent 175BT Bluetooth 176BT bit test 177BTC bit test [and] complement 178BTR bit test [and] reset 179BTS bit test [and] set 180BTS bug tracking system 181BW bandwidth 182BWM block-write mode 183BUAG big ugly ASCII graphic 184CA certificate authority 185CAD computer-aided design 186CAM computer assisted manufacturing 187CAM conditional access module 188CAM content addressable memory 189CARP Common Address Redundancy Protocol 190CAS column address strobe 191CAS compare and swap 192CAS computer algebra system 193CASE computer aided software engineering 194CAU control access unit 195CAV constant angular velocity 196CBC cipher block chaining 197CBR constant bit rate 198CC carbon copy 199CCD charge coupled device 200CCI co-channel interferer 201CCNUMA cache-coherent non-uniform memory access 202CD cache disable 203CD compact disc 204CDDA compact disc digital audio 205CDMA code division multiple access 206CDP Cisco Discovery Protocol 207CDRAM cache dynamic random access memory 208CER canonical encoding rules 209CF compact flash 210CFB cipher feedback 211CFG context-free grammar 212CFG control-flow graph 213CFI control-flow integrity sanitizer 214CG control gate 215CGA Color Graphics Adapter 216CGI common gateway interface 217CGN Carrier-Grade NAT 218CHAP Challenge-Handshake Authentication Protocol 219CHS cylinder/head/sector 220CI continuous integration 221CI {common,component} interface 222CIDR Classless Inter-Domain Routing 223CIF common intermediate format 224CIFS Common Internet File System 225CIL common intermediate language 226CIR carrier-to-interference ratio 227CIS contact image sensor 228CISC complex instruction set {computer,computing} 229CJK Chinese, Japanese, [and] Korean 230CLF common log format 231CLI command line interface 232CLR common language runtime 233CLTT closed loop thermal throttling 234CLUT color look-up table 235CLV constant linear velocity 236CM configuration management 237CMA concert multithread architecture 238CMC chassis management controller 239CMC corrected machine check 240CMS {configuration,content,course} management system 241CMI control {management,method} interface 242CMOS complementary metal-oxide-semiconductor 243CMP chip multi-processing 244CMS content management system 245CMYK cyan magenta yellow black 246CN {common,canonical} name 247CNC computer numerical control 248CNR carrier-to-noise ratio 249COF current operating frequency 250COFDM coded orthogonal frequency division multiplexing 251COFF common object file format 252COM component object model 253COM computer on module 254COMA cache-only memory architecture 255CORBA common object request broker architecture 256COS class of service 257COW copy-on-write 258CP continuous pilot 259CPB core performance boost 260CPC central processor complex 261CPC cpu performance counters 262CPE common phase error 263CPE common platform enumeration 264CPER common platform error record 265CPG clock pulse generator 266CPI cycles per instruction 267CPL current privilege level 268CPLD complex programmable logic device 269CPP C preprocessor 270CPS characters per second 271CPT command pass through 272CPU central processing unit 273CR carriage return 274CRC cyclic redundancy check 275CRL carrier recovery loop 276CRLF carriage return line feed 277CRT cathode ray tube 278CRUD create, read, update, and delete 279CS cable select 280CS chip select 281CS code segment 282CS computer science 283CSDL {common,conceptual} schema definition language 284CSI channel state information 285CSI common system interface 286CSMA carrier sense multiple access 287CSMA/CA carrier sense multiple access with collision avoidance 288CSMA/CD carrier sense multiple access with collision detection 289CSR control [and] status registers 290CSRG Computer Systems Research Group 291CSS cascading style sheets 292CSV comma-separated values 293CTF compact c type format 294CTM close to metal 295CTR counter [mode] 296CTS clear to send 297CUA common user access 298CUT coordinated universal time 299CV control voltage 300CVE common vulnerabilities and exposures 301CVS Concurrent Versions System 302DA destination address 303DAA distributed application architecture 304DAB digital audio broadcasting 305DAC digital [to] analog converter 306DAC discretionary access control 307DAD duplicate address detection 308DANE DNS-based Authentication of Named Entities 309DAO disk at once 310DAP Directory Access Protocol 311DAT digital audio tape 312DAT dynamic acceleration technology 313DB database 314DBA database administrator 315DBA dynamic bandwidth allocation 316DBB data bus buffer 317DBC design by contract 318DBL dynamic buffer limiting 319DBMS database management system 320DBS database server 321DC direct current 322DCC Direct Client-to-Client 323DCC direct cable connect 324DCD data carrier detect 325DCE data control equipment 326DCE distributed computing environment 327DCIM data center infrastructure management 328DCIM digital camera images 329DCL Digital Command Language 330DCOM distributed component object model 331DCOP Desktop COmmunication Protocol 332DCS data collection systems 333DCT discrete cosine transform 334DCU data cache unit 335DDC display data channel 336DDE dynamic data exchange 337DDK device driver kit 338DDL data description language 339DDR double data rate 340DDS direct digital sound 341DDWG Digital Display Working Group 342DE debugging extensions 343DE desktop environment 344DEA data encryption algorithm 345DEC Digital Equipment Corporation 346DEK data encryption key 347DEP data execution prevention 348DER distinguished encoding rules 349DES Data Encryption Standard 350DF don't fragment 351DFA deterministic finite automaton 352DFC data flow control 353DFS depth first search 354DFS distributed file system 355DFSAN Data Flow Sanitizer 356DFT diagnostic function test 357DFT discrete Fourier transform 358DGL data generation language 359DH Diffie-Hellman 360DHCP Dynamic Host Configuration Protocol 361DIFS distributed inter-frame space 362DIMM dual inline memory module 363DIRT design in real time 364DL diode logic 365DL discrete logarithm 366DL download 367DLE data link escape 368DLL dynamic link library 369DLP discrete logarithm problem 370DMA direct memory access 371DMI desktop management interface 372DMS document management system 373DMT discrete multitone modulation 374DMU data management layer 375DNARD Digital network appliance reference design 376DND drag and drop 377DNLC directory name lookup cache 378DNS Domain Name System 379DNSSEC DNS Security Extensions 380DOE distributed object environment 381DOF data over fibre 382DOM document object model 383DOS denial of service 384DOS disk operating system 385DP DisplayPort 386DPC deferred procedure call 387DPCM differential pulse code modulation 388DPD dead peer detection 389DPI deep packet inspection 390DPI dots per inch 391DPL descriptor privilege level 392DPS Display PostScript 393DPST display power savings technology 394DRAAS disaster recovery as a service 395DRAM dynamic random access memory 396DRBG deterministic random bit generator 397DRI direct rendering infrastructure 398DRM digital rights management 399DRRS display refresh rate switching 400DS debug store 401DSA digital signature algorithm 402DSAP destination service access point 403DSB double-sideband modulation 404DSDT differentiated system descriptor table 405DSL dataset and snapshot layer 406DSL digital subscriber line 407DSL domain specific language 408DSLAM digital subscriber line access multiplexer 409DSN delivery status notification 410DSO dynamic shared object 411DSP digital signal processor 412DSSS direct sequence spread spectrum 413DTD document type definition 414DTE data terminal equipment 415DTE dumb terminal emulator 416DTL diode-transistor logic 417DTLS datagram transport layer security 418DTS digital thermal sensor 419DUT device under test 420DVB digital video broadcasting 421DVCS distributed version control system 422DVD digital versatile disc 423DVFS dynamic voltage and frequency scaling 424DVI device independent 425DVI Digital Visual Interface 426DVR digital video recorder 427E-XER extended XML encoding rules 428EABI embedded-application binary interface 429EAI Email Address Internationalization 430EAI Enterprise Application Integration 431EAP Extensible Authentication Protocol 432EAPOL EAP over Lan 433EBCDIC Extended Binary Coded Decimal Interchange Code 434EBDA Extended BIOS Data Area 435EBR extended boot record 436EC elliptic curve 437ECC elliptic curve cryptography 438ECC error correction code 439ECDH elliptic curve Diffie-Hellman 440ECDL elliptic curve discrete logarithm 441ECDLP elliptic curve discrete logarithm problem 442ECDSA elliptic curve digital signature algorithm 443ECL emitter-coupled logic 444ECN explicit congestion notification 445ECP enhanced capability port 446ECS enhanced chip set 447ECS extended configuration space 448EDAC error detection and correction 449EDAT enhanced dynamic acceleration technology 450EdDSA Edwards curve digital signature algorithm 451EDGE explicit data graph execution 452EDID extended display identification data 453EDO extended data out 454EDS electronical data sheet 455EEE energy efficient ethernet 456EEPROM electrically erasable programmable read only memory 457EFI extensible firmware interface 458EFL emitter follower logic 459EFM eight to fourteen modulation 460EGA Enhanced Graphics Adapter 461EGP exterior gateway protocol 462EH extension header 463EIDE enhanced IDE 464EISA extended industry standard architecture 465EINJ error injection table 466ELF executable and linking format 467ELS entry level system 468EMI electro-magnetic interference 469EMP electro-magnetic pulse 470EMR electro-magnetic radiation 471EMACS Editor MACroS 472EOF end of file 473EOI end of interrupt 474EOIS end of interactive support 475EOL end of life 476EOL end of line 477EOT end of transmission 478EPIC explicitly parallel instruction computing 479EPP enhanced parallel port 480EPRML extended partial response, maximum likelihood 481EPROM erasable programmable read only memory 482ERD emergency recovery disk 483ERD entity relationship diagram 484ERE extended regular expression 485ERST error record serialization table 486ESAN Efficiency Sanitizer 487ESB enterprise service bus 488ESDI enhanced small disk interface 489ESDRAM enhanced synchronous dynamic random access memory 490ESI enclosure services interface 491ESS electronic switching system 492ESS extended service set 493ESSID extended service set identifier 494EST enhanced speedstep 495ETL extract, transform, load 496EU execution unit 497EULA end user license agreement 498FAT file allocation table 499FBRAM frame buffer random access memory 500FCIF full common intermediate format 501FCL fiber channel loop 502FCS frame check sequence 503FDC floppy disk controller 504FDD floppy disk drive 505FDDI fiber distributed data interface 506FDE full disk encryption 507FDT flattened device tree 508FEA finite element analysis 509FEC forward error correction 510FET field-effect transistor 511FF finite field 512FF form feed 513FFDH finite-field Diffie-Hellman 514FFH functional fixed hardware 515FFI foreign function interface 516FFM focus follows mouse 517FFS Fast File System 518FFS find first set 519FFT fast Fourier transform 520FG floating gate 521FHSS frequency hop spread spectrum 522FID frequency identifier 523FIFO first in, first out 524FILO first in, last out 525FIPS Federal Information Processing Standards 526FIR fast infrared 527FLOPS floating [point] operations per second 528FLOSS free/libre/open source software 529FM frequency modulation 530FMR false match rate 531FOSS free/open source software 532FPGA field programmable gate array 533FPM fast page mode 534FPR floating point register 535FPU floating point unit 536FQDN fully qualified domain name 537FRR false rejection rate 538FRU field replaceable unit 539FS file system 540FSB front side bus 541FSCK file system check 542FSF Free Software Foundation 543FSK frequency shift keying 544FSM finite-state machine 545FTA fault tree analysis 546FTL flash translation layer 547FTP File Transfer Protocol 548FTPS File Transfer Protocol Secure 549FUS fast user switching 550FWH firmware hub 551FWS folding white space 552GAL generic array logic 553GAS generic address structure 554GC garbage collector 555GCM Galois counter mode 556GCR group-coded recording 557GDI Graphics Device Interface 558GDT global descriptor table 559GEM graphics environment manager 560GEM graphics execution manager 561GENA general event notification architecture 562GHC Glasgow Haskell compiler 563GHES generic hardware error source 564GIC generic interrupt controller 565GID group identifier 566GIF graphics interchange format 567GMCH graphics and memory controller hub 568GNU GNU's Not Unix 569GOP graphics output protocol 570GOT global offset table 571GPE general purpose event 572GPF general protection fault 573GPG GNU Privacy Guard 574GPL [GNU] General Public License 575GPR general purpose register 576GPS generalized processor sharing 577GPT GUID partition table 578GPU graphics processing unit 579GR golden ratio 580GRE generic routing encapsulation 581GSI global system interrupt 582GUI graphical user interface 583GUID globally unique identifier 584GVFS git virtual file system 585HA high availability 586HAL hardware abstraction layer 587HAT hashed array tree 588HATEOAS hypermedia as the engine of application state 589HBA host bus adapter 590HCF halt and catch fire 591HCI host controller interface 592HCI human-computer interaction 593HCL hardware compatibility list 594HDCP High-bandwidth Digital Content Protection 595HDD hard disk drive 596HDL hardware description language 597HDMI High-Definition Multimedia Interface 598HDTV high-definition television 599HECI host embedded controller interface 600HEST hardware error source table 601HF high frequency 602HFM highest frequency mode 603HID human interface device 604HKP HTTP Keyserver Protocol 605HLL high-level language 606HMA high memory area 607HMI human-machine interface 608HOOD hierarchical object oriented design 609HP Hewlett-Packard 610HPC high performance computing 611HPET high precision event timer 612HSM hardware security module 613HSM hierarchical storage management 614HT hyper-threading 615HTC hardware thermal control 616HTCC high temperature co-fired ceramic 617HTML HyperText Markup Language 618HTT hyper-threading technology 619HTTP Hypertext Transfer Protocol 620HTTPS Hypertext Transfer Protocol Secure 621HVM hardware virtual machine 622HVDS High-Voltage Differential Signaling 623HWASAN Hardware-assisted Address Sanitizer 624HZ Hertz 625I2O intelligent input/output 626IA information assurance 627IAAS infrastructure as a service 628IANA Internet Assigned Numbers Authority 629IBC iterated block cipher 630IBM International Business Machines 631IBS instruction based sampling 632IBSS independent basic service set 633IC integrated circuit 634ICA independent computer architecture 635ICB Internet Citizen's Band 636ICE in-circuit emulator 637ICE internal compiler error 638ICH I/O controller hub 639ICMP Internet Control Message Protocol 640ICT information and communications technology 641ICW initialization command word 642IDA Intel dynamic acceleration 643IDCMP Intuition direct communication message port 644IDE integrated development environment 645IDE integrated drive electronics 646IDPS intrusion detection [and] prevention system 647IDRP inter-domain routing protocol 648IDS intrusion detection system 649IDT interrupt descriptor table 650IE Internet Explorer 651IEC International Electrotechnical Commission 652IEEE Institute of Electrical and Electronics Engineers 653IESG Internet Engineering Steering Group 654IETF Internet Engineering Task Force 655IF intermediate frequency 656IFCM isochronous flow control mode 657IFF Interchange File Format 658IFS internal field separator 659IGD Internet gateway device 660IGMP Internet Group Management Protocol 661IGP interior gateway protocol 662IHV independent hardware vendor 663IKE Internet key exchange 664ILM internal loopback mode 665ILOM integrated lights-out management 666ILP instruction level parallelism 667IM instant messaging 668IMAP Internet Message Access Protocol 669IMC integrated memory controller 670IMCR interrupt mode configuration register 671IMR interrupt mask register 672IMS information management system 673IMSI international mobile subscriber identity 674INCITS InterNational Committee for Information Technology Standards 675IO input/output 676IOCTL input/output control 677IOMMU input/output memory management unit 678IOT Internet of Things 679IP Internet Protocol 680IP intellectual property 681IPC instructions per cycle 682IPC interprocess communication 683IPE integrated programming environment 684IPI intelligent peripheral interface 685IPI interprocessor interrupt 686IPL Initial Program Load 687IPL Interrupt Priority Level 688IPMB Intelligent Platform Management Bus 689IPMI Intelligent Platform Management Interface 690IPNG Internet Protocol, Next Generation 691IPS in-plane switching 692IPS intrusion prevention system 693IPSEC Internet Protocol Security 694IRC Internet Relay Chat 695IRDA infrared data association 696IRQ interrupt request 697IRQL interrupt request level 698IRR interrupt request register 699IRTF Internet Research Task Force 700IS information system 701ISA industry standard architecture 702ISA instruction set architecture 703ISDN integrated services digital network 704ISI inter-symbol interference 705ISM industrial, scientific, [and] medical 706ISN initial serial number 707ISO International Standards Organization 708ISOC Internet Society 709ISP Internet service provider 710ISR in-service register 711ISR interrupt service routine 712IST interrupt stack table 713ISV independent software vendor 714IT information technology 715ITB Intel Turbo Boost 716ITIL information technology infrastructure library 717ITP in-target probe 718ITSM IT service management 719IV initialization vector 720IVT interrupt vector table 721JBOD just a bunch of disks 722JFET junction [gate] field-effect transistor 723JIT just in time 724JPEG Joint Photographic Experts Group 725JRE Java Runtime Environment 726JSON JavaScript Object Notation 727JTAG joint test action group 728KASLR kernel address space layout randomization 729KB keyboard 730KB kilobyte 731KBD keyboard 732KBD kilobaud 733KCS keyboard controller style 734KLOC thousand lines of code 735KMS kernel-mode setting 736KPI kernel programming interface 737KVA kernel virtual address 738KVM kernel virtual machine 739KVM kernel virtual memory 740KVM keyboard, video, [and] mouse 741LAMP Linux Apache MySQL {Perl,PHP,Python} 742LAN local area network 743LAPIC local advanced programmable interrupt controller 744LAR load access rights 745LBA logical block addressing 746LBS location-based service 747LCD liquid crystal display 748LCP link control protocol 749LDA local delivery agent 750LDAP Lightweight Directory Access Protocol 751LDR light-dependent resistor 752LDT local descriptor table 753LE logical extent 754LED light emitting diode 755LELL low energy link layer 756LER label edge router 757LF line feed 758LF low frequency 759LFM lowest frequency mode 760LFN long file names 761LFO low-frequency oscillation 762LFS log-structured file system 763LFU least frequently used 764LHP loop heat pipe 765LIFO last in, first out 766LILO LInux LOader 767LILO last in, last out 768LINT local interrupt 769LIR local Internet registry 770LISP LISt Processor 771LISP Locator/ID Separation Protocol 772LKM {Linux,loadable} kernel module 773LKML Linux kernel mailing list 774LL load linked 775LL/SC load linked/store conditional 776LLC logical link control 777LLDP link layer discovery protocol 778LLF low level format 779LLMNR link-local multicast name resolution 780LLVM Low Level Virtual Machine 781LM long mode 782LMM link management mode 783LMP link management protocol 784LNO loop nest optimization 785LOC lines of code 786LOM lights-out management 787LPE Linux performance events 788LPC low pin count 789LPS local positioning system 790LRC longitudinal redundancy check 791LRM left-to-right mark 792LRO left-to-right override 793LRU least recently used 794LSAN Leak Sanitizer 795LSB Linux standards base 796LSB least significant {bit,byte} 797LSI large scale integration 798LSL load segment limit 799LSM log structured merge 800LSN Large Scale NAT 801LSN log sequence number 802LSR label switch router 803LTCC low temperature co-fired ceramic 804LTO linear tape-open 805LTO link time optimization 806LTR left to right 807LTR load task register 808LTR letter(-sized paper) 809LTS long term support 810LUA Lua Uppercase Accident 811LUN logical unit number 812LV logical volume 813LVM logical volume management 814LVT local vector table 815LVDS Low-Voltage Differential Signaling 816LWP light-weight process 817LZW Lempel Ziv Welch 818MAC mandatory access control 819MAC {media,medium} access control 820MAC message authentication {check,code} 821MADT multiple APIC descriptor table 822MB megabyte 823MBA multi-boot agent 824MBR master boot record 825MBS megabits per second 826MC memory controller 827MCA machine check architecture 828MCA MicroChannel architecture 829MCC multiversion concurrency control 830MCE machine check exception 831MCGA Multi-Color Graphics Array 832MCH memory controller hub 833MCM multi-chip module 834MCQ memory controlled queue 835MD machine-dependent 836MD-SAL model-driven service abstraction layer 837MDA mail delivery agent 838MDA Monochrome Display Adapter 839MDC Management Data Clock 840MDI Medium Dependent Interface 841MDI-X Medium Dependent Interface Crossover 842MDIO Management Data Input/Output 843MDMX MIPS Digital Media eXtension 844MDRAM multibank dynamic random access memory 845MESI modified, exclusive, shared, invalid 846MFC merge from current 847MFC Microsoft Foundation Classes 848MFM modified frequency modulation 849MFU most frequently used 850MI machine-independent 851MIB management information base 852MIC message integrity {check,code} 853MID mobile Internet device 854MIDI musical instrument digital interface 855MIF management information format 856MII media independent interface 857MIM man in the middle 858MIMD multiple instruction, multiple data 859MIME Multipurpose Internet Mail Extensions 860MIMO multiple input multiple output 861MIPS million instructions per second 862MIPS Microprocessor without Interlocked Pipeline Stages 863MISD multiple instruction, single data 864MIT Massachusetts Institute of Technology 865MITM man in the middle 866ML machine language 867ML machine learning 868ML mailing list 869ML markup language 870ML maximum likelihood 871MLC multi-level cell 872MLD multicast listener discovery 873MLHP micro loop heat pipe 874MMF multi-mode fiber 875MMIC monolithic microwave integrated circuit 876MMIO memory mapped input/output 877MMORPG massive multiplayer online role playing game 878MMU memory management unit 879MMX matrix math extension 880MMX multimedia extension 881MMX multiple math extension 882MO magneto-optical 883MOESI modified, owned, exclusive, shared, invalid 884MOF maximum operating frequency 885MOSFET metal-oxide-semiconductor field-effect transistor 886MOSI modified, owned, shared, invalid 887MP multi-platform 888MP multiplayer 889MP {multiprocessing,multiprocessor} 890MPEG moving picture experts group 891MPI message passing interface 892MPLS Multiprotocol Label Switching 893MPP massively parallel processor 894MPS memory pool system 895MPS multiprocessor specification 896MQTT Message Queuing Telemetry Transport 897MR modem ready 898MRU most recently used 899MS Microsoft 900MSAN Memory Sanitizer 901MSB most significant {bit,byte} 902MSC message sequence chart 903MSE mean square error 904MSF minutes seconds frames 905MSI message signaled interrupt 906MSI modified, shared, invalid 907MSR {machine state,model-specific} register 908MSS maximum segment size 909MSTP Multiple Spanning Tree Protocol 910MT machine translation 911MTA mail transfer agent 912MTBF mean time between failures 913MTP media transfer protocol 914MTRR memory type range register 915MTTF mean time to failure 916MTU maximum transmission unit 917MUA mail user agent 918MUD multi-user domain 919MVCC multiversion concurrency control 920MWE module width encoding 921MX mail exchange 922NACK negative acknowledgement 923NAK negative acknowledgement 924NAN not a number 925NAPT Network Address Port Translation 926NAS network attached storage 927NAT network address translation 928NAV network allocation vector 929NC numerical control 930NCO numerically-controlled oscillator 931NCP Network Control Protocol 932NCQ native command queuing 933ND neighbor discovery 934NDFA nondeterministic finite automaton 935NE numeric error 936NEWS Network extensible Window System 937NFA nondeterministic finite automaton 938NFC near-field communication 939NFCI no functional change intended 940NFS network file system 941NFV network function virtualization 942NIA next instruction address 943NIC network information center 944NIC network interface card 945NIDS network intrusion detection system 946NIP network interface protocol 947NIPS network intrusion prevention system 948NIS network information service 949NIST National Institute of Standards and Technology 950NLS native language support 951NMI non-maskable interrupt 952NNTP Network News Transfer Protocol 953NOC network operations center 954NOP no operation 955NOS network operating system 956NP nondeterministic polynomial time 957NRND not recommended for new designs 958NRZ non-return to zero 959NSA nation-state adversary 960NSA no such agency 961NSA National Security Agency 962NTM non-deterministic Turing machine 963NTP Network Time Protocol 964NUMA non-uniform memory access 965NVRAM non-volatile random access memory 966NW not write-through 967NX no execute 968OAEP optimal asymmetric encryption padding 969OAM operations, administration, and {management,maintenance} 970OBO off by one 971OBOE off by one error 972OCL object constraint language 973OCR optical character recognition 974ODCM on-demand clock modulation 975ODT on-die termination 976OEM original equipment manufacturer 977OFB output feedback 978OFDM orthogonal frequency division multiplexing 979OFET organic field-effect transistor 980OLAP online analytical processing 981OLE object linking and embedding 982OLTP online transaction processing 983ONFI open nand flash interface 984OO OpenOffice 985OO object oriented 986OOB out of band 987OOE out of order execution 988OOM out of memory 989OOO OpenOffice.org 990OOP object oriented programming 991OOPS object oriented programming systems 992OOSE object oriented software engineering 993OPM operations per minute 994OPS operations per second 995OQL Object Query Language 996ORB object request broker 997ORM object-relational mapping 998OS operating system 999OSD open source definition 1000OSF open software foundation 1001OSI Open Source Initiative 1002OSI open systems interconnection 1003OSPF open shortest path first 1004OSPM OS power management 1005OSS open sound system 1006OSS open source software 1007OSVW operating system visible workarounds 1008OTP one time password 1009OTP open telecom platform 1010OU organizational unit 1011OUI organizationally unique identifier 1012OWL Web Ontology Language 1013P2P PCI to PCI 1014P2P peer to peer 1015PA phase accumulator 1016PA physical address 1017PAAS platform as a service 1018PAC phase-amplitude converter 1019PAE physical address extension 1020PAL phase alternating line 1021PAL programmable array logic 1022PAM pluggable authentication modules 1023PAM pulse amplitude modulation 1024PAP password authentication protocol 1025PAT page attribute table 1026PAT port address translation 1027PATA parallel ATA 1028PAX portable archive exchange 1029PBE pending break encoding 1030PBE programming by example 1031PC personal computer 1032PC program counter 1033PCB printed circuit board 1034PCB process control block 1035PCB Protocol Control Block 1036PCC Portable C Compiler 1037PCD page-level cache disable 1038PCE path computation element 1039PCE performance-monitor counter enable 1040PCEP Path Computation Element Protocol 1041PCH platform controller hub 1042PCI peripheral component interconnect 1043PCM phase change memory 1044PCM pulse code modulation 1045PCMCIA Personal Computer Memory Card International Association 1046PCP Port Control Protocol 1047PD public domain 1048PDA personal digital assistant 1049PDA pushdown automaton 1050PDAG propositional directed acyclic graph 1051PDB power distribution board 1052PDF portable document format 1053PDM pulse-duration modulation 1054PDN pull-down network 1055PDP page {descriptor,directory} page 1056PDS product data sheet 1057PDU protocol data unit 1058PE protection enable 1059PEAP Protected EAP 1060PECI platform environment control interface 1061PEP protocol extension protocol 1062PER packed encoding rules 1063PFS perfect forward secrecy 1064PGAS partitioned global address space 1065PGE page global enable 1066PGP Pretty Good Privacy 1067PHB PCI host bridge 1068PHP PHP: Hypertext Preprocessor 1069PIC performance instrumentation counters 1070PIC position independent code 1071PIC programmable interrupt controller 1072PICNIC problem in chair, not in computer 1073PID process id 1074PIE position independent executable 1075PIL Priority Interrupt Level 1076PIM personal information manager 1077PIM platform-independent model 1078PIO programmed input/output 1079PIPT physically indexed, physically tagged 1080PIQ prefetch input queue 1081PIT programmable interrupt timer 1082PIV personal identity verification 1083PIX Private Internet eXchange 1084PKCS public-key cryptography standards 1085PKI public key infrastructure 1086PLC programmable logic controller 1087PLD programmable logic device 1088PLL phase locked loop 1089PLRU pseudo LRU 1090PLTM package level thermal management 1091PM power management 1092PM {phase,pulse} modulation 1093PMC performance monitoring counters 1094PME power management event 1095PMEG page map entry group 1096PMI performance monitoring infrastructure 1097PMI platform management interrupt 1098PMIC power management integrated circut 1099PMIO port-mapped input/output 1100PMT photo-multiplier tube 1101PMU performance monitoring units 1102PMU power management unit 1103PNG portable network graphics 1104PNP plug and play 1105POE power over ethernet 1106POF probability of failure 1107POP Post Office Protocol 1108POP power on password 1109POSIX Portable Operating System Interface [for Unix] 1110POST power on self test 1111POTS plain old telephone system 1112POWER Performance Optimization With Enhanced RISC 1113POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1114PP pair programming 1115PPB PCI [to] PCI bridge 1116PPC PowerPC 1117PPC Power Performance Computing 1118PPI pixels per inch 1119PPM pages per minute 1120PPP Point-to-Point Protocol 1121PPPOA Point-to-Point Protocol over ATM 1122PPPOE Point-to-Point Protocol over Ethernet 1123PPU physics processing unit 1124PRAM Parameter RAM 1125PRBS pseudorandom bit sequence 1126PRG pseudorandom generator 1127PRF pseudorandom function [family] 1128PRML partial response, maximum likelihood 1129PRN pseudorandom {noise,number} 1130PRNG pseudorandom number generator 1131PROM programmable read only memory 1132PRP pseudorandom permutation 1133PRU Programmable Realtime Unit 1134PS PostScript 1135PSD power spectral density 1136PSE page size extensions 1137PSK phase shift keying 1138PSK pre-shared key 1139PSTN public switched telephone network 1140PSW program status word 1141PTE page table entry 1142PTLA pseudo top level aggregator 1143PTP page table page 1144PTV perceived target value 1145PU processing unit 1146PUC personal unblocking code 1147PUN physical unit number 1148PV physical volume 1149PVG physical volume group 1150PVI protected-mode virtual interrupt 1151PVST Per-VLAN Spanning Tree 1152PWM pulse width modulation 1153PXE preboot execution environment 1154QA quality assurance 1155QAM quadrature amplitude modulation 1156QAM quality assurance management 1157QBE query by example 1158QC quality control 1159QDI quasi delay insensitive 1160QCIF quarter common intermediate format 1161QOS quality of service 1162QVL qualified vendor list 1163R/O read only 1164R/W read/write 1165RA receiver address 1166RA remote assistance 1167RA resource affinity 1168RA router advertisement 1169RAD rapid application development 1170RAID redundant array of {independent,inexpensive} disks 1171RAM random access memory 1172RAS reliability, availability and serviceability 1173RAS remote access service 1174RAS restartable atomic sequence 1175RAS row address strobe 1176RBF radial basis function 1177RBT red-black tree 1178RC release candidate 1179RC remote control 1180RC run commands 1181RCS Revision Control System 1182RCS revision control system 1183RCU read, copy, update 1184RDB Rigid Disk Block 1185RDBMS relational database management system 1186RDF Resource Description Framework 1187RDM relational data model 1188RDMA remote direct memory access 1189RDRAM Rambus DRAM 1190RE regular expression 1191REST representational state transfer 1192RF radio frequency 1193RFI radio frequency interference 1194RFO request for ownership 1195RGB red green blue 1196RGBA red green blue alpha 1197RGMII reduced gigabit media independent interface 1198RH read hit 1199RHEL Red Hat Enterprise Linux 1200RHL Red Hat Linux 1201RIB routing information base 1202RIFF Resource Interchange File Format 1203RIP Raster Image Processor 1204RIP Routing Information Protocol 1205RIR regional Internet registry 1206RISC reduced instruction set {computer,computing} 1207RKM ROM Kernel Manual 1208RLE run length encoding 1209RLL run length limited 1210RLO right-to-left override 1211RM read miss 1212RMCP Remote Management Control Protocol 1213RMI remote method invocation 1214RMO Relaxed Memory Ordering 1215RMPM rapid memory power management 1216RMS root mean square 1217RMW read, modify, write 1218RNG random number generator 1219ROM read only memory 1220RPC remote procedure call 1221RPKI resource PKI 1222RPL requested privilege level 1223RPM revolutions per minute 1224RPN reverse Polish notation 1225RPVST Rapid Per-VLAN Spanning Tree 1226RR random replacement 1227RR round robin 1228RS relay station 1229RSA Rivest, Shamir, [and] Adleman 1230RSIP Realm Specific IP 1231RSN Robust Secure Network 1232RSS really simple syndication 1233RSS residual sum of squares 1234RSTP Rapid Spanning Tree Protocol 1235RT real time 1236RTC real time clock 1237RTC real time computing 1238RTF rich text format 1239RTL register transfer language 1240RTL resistor-transistor logic 1241RTL right to left 1242RTOS real time operating system 1243RTS request to send 1244RTT round trip time 1245RUP rational unified process 1246RW Rabin-Williams 1247RWM read-write memory 1248RX {receive,receiver} 1249S/PDIF Sony/Philips Digital Interface Format 1250SA security advisory 1251SA security association 1252SA source address 1253SA structured analysis 1254SAAS software as a service 1255SACD super audio compact disc 1256SAD security association database 1257SAL {service,system} abstraction layer 1258SAM serial access memory 1259SAM sum addressed memory 1260SAML security assertion markup language 1261SAN storage area network 1262SAP service access point 1263SAPIC streamlined advanced programmable interrupt controller 1264SASD structured analysis, structured design 1265SASI Shugart Associates System Interface 1266SASL simple authentication [and] security layer 1267SATA serial advanced technology attachment 1268SAX simple API for XML 1269SB sound blaster 1270SBU standard build unit 1271SC store conditional 1272SCA source code analyzer 1273SCADA supervisory control and data acquisition 1274SCC single chip cloud 1275SCC source code control 1276SCCS Source Code Control System 1277SCI scalable coherent interface 1278SCI system control interrupt 1279SCM software configuration management 1280SCM source code management 1281SCM storage-class memory 1282SCO synchronous connection orientated 1283SCP secure copy 1284SCSI Small Computer System Interface 1285SCTP Stream Control Transmission Protocol 1286SDEI software delegated exception interface 1287SDI symbol deinterleave 1288SDK software development kit 1289SDL Simple Declarative Language 1290SDL Simple Direct-media Layer 1291SDLC {software,system,systems} development life cycle 1292SDN software defined networking 1293SDP Session Description Protocol 1294SDRAM synchronous dynamic random access memory 1295SDS software defined storage 1296SDT syntax-directed translation 1297SEA synchronous external abort 1298SEGV segmentation violation 1299SEO search engine optimization 1300SES SCSI enclosure services 1301SFC sequential function chart 1302SFI simple firmware interface 1303SFI software fault isolation 1304SFTP SSH File Transfer Protocol 1305SFTP Serial File Transfer Protocol 1306SFTP Simple File Transfer Protocol 1307SGMII serial gigabit media independent interface 1308SGRAM synchronous graphics random access memory 1309SHA secure hash algorithm 1310SIDH supersingular isogeny Diffie-Hellman 1311SIEM security information and event management 1312SIF source input format 1313SIFS short inter-frame space 1314SIM subscriber identity module 1315SIMD single instruction, multiple data 1316SIMM single inline memory module 1317SIP Session Initiation Protocol 1318SIR signal-to-interference ratio 1319SIR slow infrared 1320SISD single instruction, single data 1321SLAAC stateless address auto-configuration 1322SLC single-level cell 1323SLDRAM synchronous-link dynamic random access memory 1324SLED single large expensive disk 1325SLI scalable link interface 1326SLI scan-line interleave 1327SLOC source lines of code 1328SLRU segmented LRU 1329SMA smart memory access 1330SMAF system management action field 1331SMAP Simple Mail Access Protocol 1332SMAP supervisor mode access prevention 1333SMART self-monitoring analysis and reporting technology 1334SMB Server Message Block 1335SMB system management bus 1336SMBIOS System Management BIOS 1337SMC system management controller 1338SMD storage module device 1339SMEP supervisor mode execution protection 1340SMF single mode fiber 1341SMI structure of management information 1342SMI system management interrupt 1343SMM system management mode 1344SMP symmetric multiprocessing 1345SMT simultaneous multithreading 1346SMTP Simple Mail Transfer Protocol 1347SMU system management unit 1348SNA systems network architecture 1349SNAP Sub-Network Access Protocol 1350SNIA Storage Networking Industry Association 1351SNMP Simple Network Management Protocol 1352SNR signal-to-noise ratio 1353SOA service oriented architecture 1354SOAP Simple Object Access Protocol 1355SOC system on chip 1356SOF start of frame 1357SOH start of header 1358SOHO small office/home office 1359SOL serial over LAN 1360SOM system on module 1361SP service pack 1362SP stack pointer 1363SPA storage pool allocator 1364SPARC scalable processor architecture 1365SPARQL SPARQL Protocol and RDF Query Language 1366SPD security policy database 1367SPD serial presence detect 1368SPDIF Sony/Philips digital interface format 1369SPI serial peripheral interface 1370SPI stateful packet inspection 1371SPL system interrupt priority level 1372SPL spinlock 1373SPMD single process, multiple data 1374SPR special purpose register 1375SPT sectors per track 1376SQA software quality assurance 1377SQCIF sub quarter common intermediate format 1378SQL Structured Query Language 1379SRAM static random access memory 1380SRC sample rate conversion 1381SRP SCSI RDMA protocol 1382SS self-snoop 1383SS stack segment 1384SSA static single assignment 1385SSAP source service access point 1386SSB single-sideband modulation 1387SSD solid state drive 1388SSE streaming SIMD extensions 1389SSFDC solid state floppy disc card 1390SSH secure shell 1391SSI server side includes 1392SSID service set identifier 1393SSL secure sockets layer 1394SSP stack smashing protection 1395STC software thermal control 1396STD state transition diagram 1397STOMP Streaming Text Oriented Messaging Protocol 1398STP Spanning Tree Protocol 1399STP shielded twisted pair 1400SUN Stanford University Network 1401SUS Single Unix Specification 1402SUT system under test 1403SVG scalable vector graphics 1404SVGA Super Video Graphics Array 1405SVI {switch,switched} virtual interface 1406SVM secure virtual machine 1407SVM support vector machine 1408SVR System V Release 1409SVS Separate Virtual Space 1410SWF Shockwave Flash 1411SWIG simplified wrapper [and] interface generator 1412SYR symbol timing recovery 1413TA test assertion 1414TA transmitter address 1415TAI international atomic time 1416TAO track at once 1417TAOCP The Art of Computer Programming 1418TAP Test Anything Protocol 1419TAS test and set 1420TB terabyte 1421TCB trace capture buffer 1422TCB trusted computing base 1423TCC thermal control circuit 1424TCL tool command language 1425TCP Transmission Control Protocol 1426TCQ tagged command queueing 1427TDC time [to] digital converter 1428TDD test-driven development 1429TDD time division duplex 1430TDM time division multiplexing 1431TDMA time division multiple access 1432TDOA time difference of arrival 1433TDP thermal design {point,power} 1434TECO Text Editor and Corrector 1435TFT thin film transistor 1436TFTP Trivial File Transfer Protocol 1437TIAS try it and see 1438TIFF tagged image file format 1439TITS try it to see 1440TK temporal key 1441TKIP Temporal Key Integrity Protocol 1442TLA top level aggregator 1443TLB translation lookaside buffer 1444TLD top level domain 1445TLI transport layer interface 1446TLS thread local storage 1447TLS transport layer security 1448TM Turing machine 1449TM thermal monitor 1450TMDS transition minimized differential signaling 1451TMO timeout 1452TOD time of day 1453TOS terms of service 1454TOS trusted operating system 1455TOS type of service 1456TP transaction processing 1457TPI tracks per inch 1458TPM transactions per minute 1459TPM trusted platform module 1460TPR task priority register 1461TPS transactions per second 1462TPS transmission parameters signaling 1463TR task register 1464TR token ring 1465TRL timing recovery loop 1466TRNG true random number generator 1467TS terminal services 1468TS time series 1469TS time stamp 1470TS transport stream 1471TSAN Thread Sanitizer 1472TSC time stamp counter 1473TSD time stamp disable 1474TSDB time series database 1475TSL test, set, lock 1476TSO time sharing option 1477TSO Total Store Ordering 1478TSP Time-Stamp Protocol 1479TSP Tunnel Setup Protocol 1480TSP time synchronization protocol 1481TSP traveling salesman problem 1482TSS task state segment 1483TTL time to live 1484TTL transistor-transistor logic 1485TTM translation table maps 1486TTY teletype 1487TUI {terminal,text-based,textual} user interface 1488TX {transmit out,transmitter} 1489TXG transaction group 1490TZ time zone 1491UAC user {access,account} control 1492UAF use-after-free 1493UART universal asynchronous receiver/transmitter 1494UAT user acceptance testing 1495UB undefined behavior 1496UBSAN Undefined Behavior Sanitizer 1497UC uncacheable 1498UCS uniform-cost search 1499UDMA ultra DMA 1500UDO ultra density optical 1501UDP User Datagram Protocol 1502UEFI unified extensible firmware interface 1503UFS Unix File System 1504UGA universal graphics adapter 1505UI unit interval 1506UI user interface 1507UICC universal integrated circuit card 1508UID unique identifier 1509UID user identifier 1510UL upload 1511UMA uniform memory access 1512UMA upper memory area 1513UMB upper memory block 1514UML unified modeling language 1515UMPC ultra-mobile PC 1516UPNP universal plug and play 1517UPS uninterruptible power supply 1518URI uniform resource identifier 1519URL uniform resource locator 1520URN uniform resource name 1521USART universal synchronous/asynchronous receiver/transmitter 1522USB universal serial bus 1523USWC uncacheable speculative write combining 1524UT unit test 1525UTC coordinated universal time 1526UTP unshielded twisted pair 1527UUCP Unix-to-Unix Copy Protocol 1528UUID universally unique identifier 1529UUOC useless use of cat 1530UUT unit under test 1531UX user experience 1532VA vertical alignment 1533VA virtual address 1534VA volt-ampere 1535VAX virtual address extension 1536VB Visual Basic 1537VCA variable-gain amplifier 1538VCC common collector voltage 1539VCF voltage-controlled filter 1540VCM virtual channel memory 1541VCO voltage-controlled oscillator 1542VCS version control system 1543VESA Video Electronics Standards Association 1544VFO variable-frequency oscillator 1545VG volume group 1546VGA Video Graphics Array 1547VHDCI very high density cable interconnect 1548VID {VLAN,voltage level} identifier 1549VIM Vi IMproved 1550VIPT virtually indexed, physically tagged 1551VIVT virtually indexed, virtually tagged 1552VLAN virtual local area network 1553VLIW very long instruction word 1554VLSI very large scale integration 1555VLSM variable length subnet mask 1556VM virtual {machine,memory} 1557VME virtual mode extension 1558VMX vector multimedia extensions 1559VMX virtual machine extensions 1560VOD video on demand 1561VPN virtual private network 1562VR virtual reality 1563VRAM video random access memory 1564VRF virtual routing and forwarding 1565VRM voltage regulator module 1566VRRP Virtual Router Redundancy Protocol 1567VSTP VLAN Spanning Tree Protocol 1568VTP VLAN Trunking Protocol 1569W watt 1570W3C World Wide Web Consortium 1571WAMP Web Application Messaging Protocol 1572WAN wide area network 1573WAP Wireless Application Protocol 1574WAP wireless access point 1575WDM Windows Driver Model 1576WDDM Windows Display Driver Model 1577WDT watchdog timer 1578WEP Wired Equivalent Privacy 1579WFI wait for interrupt 1580WFQ weighted fair queuing 1581WH write hit 1582WIFI wireless fidelity 1583WLAN wireless local area network 1584WM write miss 1585WMI Windows Management Instrumentation 1586WOL Wake-on-LAN 1587WOM Wake-on-Modem 1588WOR Wake-on-Ring 1589WORM write once read many 1590WP WordPerfect 1591WP word processor 1592WP write protect 1593WPA Wi-Fi Protected Access 1594WPA2 Wi-Fi Protected Access II 1595WPS Wi-Fi Protected Setup 1596WRAM window random access memory 1597WS web services 1598WTC write through caching 1599WWAN wireless wide area network 1600WWW world wide web 1601WYSIAYG what you see is all you get 1602WYSIWYG what you see is what you get 1603XBAR crossbar 1604XDMCP X Display Manager control protocol 1605XER XML encoding rules 1606XGA Extended Graphics Array 1607XHR XMLHttpRequest 1608XIP execute in place 1609XML Extensible Markup Language 1610XNA XNA's not acronymed 1611XNS Xerox network systems 1612XOR exclusive or 1613XP extreme programming 1614XSI X/Open System Interface 1615XSL extensible stylesheet language 1616XSS cross site scripting 1617XT extended technology 1618XTI X/Open transport interface 1619XUL XML user interface language 1620YACC yet another compiler compiler 1621YAML YAML ain't markup language 1622YANG yet another next generation 1623YAWPFAPR you are welcome; please file a problem report 1624YP Yellow Pages 1625YTD year to date 1626ZAP ZFS attribute processor 1627ZBR zone bit recording 1628ZFOD zero-filled on demand 1629ZFS zettabyte file system 1630ZIF zero insertion force 1631ZIFS zero insertion force socket 1632ZIL ZFS intent log 1633ZMA zone multicast address 1634ZPL ZFS Posix layer 1635ZVOL ZFS Volume 1636