acronyms.comp revision 1.234
1$NetBSD: acronyms.comp,v 1.234 2019/03/04 14:31:26 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 253COMA cache-only memory architecture 254CORBA common object request broker architecture 255COS class of service 256COW copy-on-write 257CP continuous pilot 258CPB core performance boost 259CPC central processor complex 260CPC cpu performance counters 261CPE common phase error 262CPE common platform enumeration 263CPER common platform error record 264CPG clock pulse generator 265CPI cycles per instruction 266CPL current privilege level 267CPLD complex programmable logic device 268CPP C preprocessor 269CPS characters per second 270CPT command pass through 271CPU central processing unit 272CR carriage return 273CRC cyclic redundancy check 274CRL carrier recovery loop 275CRLF carriage return line feed 276CRT cathode ray tube 277CRUD create, read, update, and delete 278CS cable select 279CS chip select 280CS code segment 281CS computer science 282CSDL {common,conceptual} schema definition language 283CSI channel state information 284CSI common system interface 285CSMA carrier sense multiple access 286CSMA/CA carrier sense multiple access with collision avoidance 287CSMA/CD carrier sense multiple access with collision detection 288CSR control [and] status registers 289CSRG Computer Systems Research Group 290CSS cascading style sheets 291CSV comma-separated values 292CTF compact c type format 293CTM close to metal 294CTR counter [mode] 295CTS clear to send 296CUA common user access 297CUT coordinated universal time 298CV control voltage 299CVE common vulnerabilities and exposures 300CVS Concurrent Versions System 301DA destination address 302DAA distributed application architecture 303DAB digital audio broadcasting 304DAC digital [to] analog converter 305DAC discretionary access control 306DAD duplicate address detection 307DANE DNS-based Authentication of Named Entities 308DAO disk at once 309DAP Directory Access Protocol 310DAT digital audio tape 311DAT dynamic acceleration technology 312DB database 313DBA database administrator 314DBA dynamic bandwidth allocation 315DBB data bus buffer 316DBC design by contract 317DBL dynamic buffer limiting 318DBMS database management system 319DBS database server 320DC direct current 321DCC Direct Client-to-Client 322DCC direct cable connect 323DCD data carrier detect 324DCE data control equipment 325DCE distributed computing environment 326DCIM data center infrastructure management 327DCIM digital camera images 328DCL Digital Command Language 329DCOM distributed component object model 330DCOP Desktop COmmunication Protocol 331DCS data collection systems 332DCT discrete cosine transform 333DCU data cache unit 334DDC display data channel 335DDE dynamic data exchange 336DDK device driver kit 337DDL data description language 338DDR double data rate 339DDS direct digital sound 340DDWG Digital Display Working Group 341DE debugging extensions 342DE desktop environment 343DEA data encryption algorithm 344DEC Digital Equipment Corporation 345DEK data encryption key 346DEP data execution prevention 347DER distinguished encoding rules 348DES Data Encryption Standard 349DF don't fragment 350DFA deterministic finite automaton 351DFC data flow control 352DFS depth first search 353DFS distributed file system 354DFSAN Data Flow Sanitizer 355DFT diagnostic function test 356DFT discrete Fourier transform 357DGL data generation language 358DH Diffie-Hellman 359DHCP Dynamic Host Configuration Protocol 360DIFS distributed inter-frame space 361DIMM dual inline memory module 362DIRT design in real time 363DL diode logic 364DL discrete logarithm 365DL download 366DLE data link escape 367DLL dynamic link library 368DLP discrete logarithm problem 369DMA direct memory access 370DMI desktop management interface 371DMS document management system 372DMT discrete multitone modulation 373DMU data management layer 374DNARD Digital network appliance reference design 375DND drag and drop 376DNLC directory name lookup cache 377DNS Domain Name System 378DNSSEC DNS Security Extensions 379DOE distributed object environment 380DOF data over fibre 381DOM document object model 382DOS denial of service 383DOS disk operating system 384DP DisplayPort 385DPC deferred procedure call 386DPCM differential pulse code modulation 387DPD dead peer detection 388DPI deep packet inspection 389DPI dots per inch 390DPL descriptor privilege level 391DPS Display PostScript 392DPST display power savings technology 393DRAAS disaster recovery as a service 394DRAM dynamic random access memory 395DRBG deterministic random bit generator 396DRI direct rendering infrastructure 397DRM digital rights management 398DRRS display refresh rate switching 399DS debug store 400DSA digital signature algorithm 401DSAP destination service access point 402DSB double-sideband modulation 403DSDT differentiated system descriptor table 404DSL dataset and snapshot layer 405DSL digital subscriber line 406DSL domain specific language 407DSLAM digital subscriber line access multiplexer 408DSN delivery status notification 409DSO dynamic shared object 410DSP digital signal processor 411DSSS direct sequence spread spectrum 412DTD document type definition 413DTE data terminal equipment 414DTE dumb terminal emulator 415DTL diode-transistor logic 416DTLS datagram transport layer security 417DTS digital thermal sensor 418DUT device under test 419DVB digital video broadcasting 420DVCS distributed version control system 421DVD digital versatile disc 422DVFS dynamic voltage and frequency scaling 423DVI device independent 424DVI Digital Visual Interface 425DVR digital video recorder 426E-XER extended XML encoding rules 427EABI embedded-application binary interface 428EAI Email Address Internationalization 429EAI Enterprise Application Integration 430EAP Extensible Authentication Protocol 431EAPOL EAP over Lan 432EBCDIC Extended Binary Coded Decimal Interchange Code 433EBDA Extended BIOS Data Area 434EBR extended boot record 435EC elliptic curve 436ECC elliptic curve cryptography 437ECC error correction code 438ECDH elliptic curve Diffie-Hellman 439ECDL elliptic curve discrete logarithm 440ECDLP elliptic curve discrete logarithm problem 441ECDSA elliptic curve digital signature algorithm 442ECL emitter-coupled logic 443ECN explicit congestion notification 444ECP enhanced capability port 445ECS enhanced chip set 446ECS extended configuration space 447EDAC error detection and correction 448EDAT enhanced dynamic acceleration technology 449EdDSA Edwards curve digital signature algorithm 450EDGE explicit data graph execution 451EDID extended display identification data 452EDO extended data out 453EDS electronical data sheet 454EEE energy efficient ethernet 455EEPROM electrically erasable programmable read only memory 456EFI extensible firmware interface 457EFL emitter follower logic 458EFM eight to fourteen modulation 459EGA Enhanced Graphics Adapter 460EGP exterior gateway protocol 461EH extension header 462EIDE enhanced IDE 463EISA extended industry standard architecture 464EINJ error injection table 465ELF executable and linking format 466ELS entry level system 467EMI electro-magnetic interference 468EMP electro-magnetic pulse 469EMR electro-magnetic radiation 470EMACS Editor MACroS 471EOF end of file 472EOI end of interrupt 473EOIS end of interactive support 474EOL end of life 475EOL end of line 476EOT end of transmission 477EPIC explicitly parallel instruction computing 478EPP enhanced parallel port 479EPRML extended partial response, maximum likelihood 480EPROM erasable programmable read only memory 481ERD emergency recovery disk 482ERD entity relationship diagram 483ERE extended regular expression 484ERST error record serialization table 485ESAN Efficiency Sanitizer 486ESB enterprise service bus 487ESDI enhanced small disk interface 488ESDRAM enhanced synchronous dynamic random access memory 489ESI enclosure services interface 490ESS electronic switching system 491ESS extended service set 492ESSID extended service set identifier 493EST enhanced speedstep 494ETL extract, transform, load 495EU execution unit 496EULA end user license agreement 497FAT file allocation table 498FBRAM frame buffer random access memory 499FCIF full common intermediate format 500FCL fiber channel loop 501FCS frame check sequence 502FDC floppy disk controller 503FDD floppy disk drive 504FDDI fiber distributed data interface 505FDE full disk encryption 506FDT flattened device tree 507FEA finite element analysis 508FEC forward error correction 509FET field-effect transistor 510FF finite field 511FF form feed 512FFDH finite-field Diffie-Hellman 513FFH functional fixed hardware 514FFI foreign function interface 515FFM focus follows mouse 516FFS Fast File System 517FFS find first set 518FFT fast Fourier transform 519FG floating gate 520FHSS frequency hop spread spectrum 521FID frequency identifier 522FIFO first in, first out 523FILO first in, last out 524FIPS Federal Information Processing Standards 525FIR fast infrared 526FLOPS floating [point] operations per second 527FLOSS free/libre/open source software 528FM frequency modulation 529FMR false match rate 530FOSS free/open source software 531FPGA field programmable gate array 532FPM fast page mode 533FPR floating point register 534FPU floating point unit 535FQDN fully qualified domain name 536FRR false rejection rate 537FRU field replaceable unit 538FS file system 539FSB front side bus 540FSCK file system check 541FSF Free Software Foundation 542FSK frequency shift keying 543FSM finite-state machine 544FTA fault tree analysis 545FTL flash translation layer 546FTP File Transfer Protocol 547FTPS File Transfer Protocol Secure 548FUS fast user switching 549FWH firmware hub 550FWS folding white space 551GAL generic array logic 552GAS generic address structure 553GC garbage collector 554GCM Galois counter mode 555GCR group-coded recording 556GDI Graphics Device Interface 557GDT global descriptor table 558GEM graphics environment manager 559GEM graphics execution manager 560GENA general event notification architecture 561GHC Glasgow Haskell compiler 562GHES generic hardware error source 563GIC generic interrupt controller 564GID group identifier 565GIF graphics interchange format 566GMCH graphics and memory controller hub 567GNU GNU's Not Unix 568GOP graphics output protocol 569GOT global offset table 570GPE general purpose event 571GPF general protection fault 572GPG GNU Privacy Guard 573GPL [GNU] General Public License 574GPR general purpose register 575GPS generalized processor sharing 576GPT GUID partition table 577GPU graphics processing unit 578GR golden ratio 579GRE generic routing encapsulation 580GSI global system interrupt 581GUI graphical user interface 582GUID globally unique identifier 583GVFS git virtual file system 584HA high availability 585HAL hardware abstraction layer 586HAT hashed array tree 587HATEOAS hypermedia as the engine of application state 588HBA host bus adapter 589HCF halt and catch fire 590HCI host controller interface 591HCI human-computer interaction 592HCL hardware compatibility list 593HDCP High-bandwidth Digital Content Protection 594HDD hard disk drive 595HDL hardware description language 596HDMI High-Definition Multimedia Interface 597HDTV high-definition television 598HECI host embedded controller interface 599HEST hardware error source table 600HF high frequency 601HFM highest frequency mode 602HID human interface device 603HKP HTTP Keyserver Protocol 604HLL high-level language 605HMA high memory area 606HMI human-machine interface 607HOOD hierarchical object oriented design 608HP Hewlett-Packard 609HPC high performance computing 610HPET high precision event timer 611HSM hardware security module 612HSM hierarchical storage management 613HT hyper-threading 614HTC hardware thermal control 615HTCC high temperature co-fired ceramic 616HTML HyperText Markup Language 617HTT hyper-threading technology 618HTTP Hypertext Transfer Protocol 619HTTPS Hypertext Transfer Protocol Secure 620HVM hardware virtual machine 621HVDS High-Voltage Differential Signaling 622HWASAN Hardware-assisted Address Sanitizer 623HZ Hertz 624I2O intelligent input/output 625IA information assurance 626IAAS infrastructure as a service 627IANA Internet Assigned Numbers Authority 628IBC iterated block cipher 629IBM International Business Machines 630IBS instruction based sampling 631IBSS independent basic service set 632IC integrated circuit 633ICA independent computer architecture 634ICB Internet Citizen's Band 635ICE in-circuit emulator 636ICE internal compiler error 637ICH I/O controller hub 638ICMP Internet Control Message Protocol 639ICT information and communications technology 640ICW initialization command word 641IDA Intel dynamic acceleration 642IDCMP Intuition direct communication message port 643IDE integrated development environment 644IDE integrated drive electronics 645IDPS intrusion detection [and] prevention system 646IDRP inter-domain routing protocol 647IDS intrusion detection system 648IDT interrupt descriptor table 649IE Internet Explorer 650IEC International Electrotechnical Commission 651IEEE Institute of Electrical and Electronics Engineers 652IESG Internet Engineering Steering Group 653IETF Internet Engineering Task Force 654IF intermediate frequency 655IFCM isochronous flow control mode 656IFF Interchange File Format 657IFS internal field separator 658IGD Internet gateway device 659IGMP Internet Group Management Protocol 660IGP interior gateway protocol 661IHV independent hardware vendor 662IKE Internet key exchange 663ILM internal loopback mode 664ILOM integrated lights-out management 665ILP instruction level parallelism 666IM instant messaging 667IMAP Internet Message Access Protocol 668IMC integrated memory controller 669IMCR interrupt mode configuration register 670IMR interrupt mask register 671IMS information management system 672IMSI international mobile subscriber identity 673INCITS InterNational Committee for Information Technology Standards 674IO input/output 675IOCTL input/output control 676IOMMU input/output memory management unit 677IOT Internet of Things 678IP Internet Protocol 679IP intellectual property 680IPC instructions per cycle 681IPC interprocess communication 682IPE integrated programming environment 683IPI intelligent peripheral interface 684IPI interprocessor interrupt 685IPL Initial Program Load 686IPL Interrupt Priority Level 687IPMB Intelligent Platform Management Bus 688IPMI Intelligent Platform Management Interface 689IPNG Internet Protocol, Next Generation 690IPS in-plane switching 691IPS intrusion prevention system 692IPSEC Internet Protocol Security 693IRC Internet Relay Chat 694IRDA infrared data association 695IRQ interrupt request 696IRQL interrupt request level 697IRR interrupt request register 698IRTF Internet Research Task Force 699IS information system 700ISA industry standard architecture 701ISA instruction set architecture 702ISDN integrated services digital network 703ISI inter-symbol interference 704ISM industrial, scientific, [and] medical 705ISN initial serial number 706ISO International Standards Organization 707ISOC Internet Society 708ISP Internet service provider 709ISR in-service register 710ISR interrupt service routine 711IST interrupt stack table 712ISV independent software vendor 713IT information technology 714ITB Intel Turbo Boost 715ITIL information technology infrastructure library 716ITP in-target probe 717ITSM IT service management 718IV initialization vector 719IVT interrupt vector table 720JBOD just a bunch of disks 721JFET junction [gate] field-effect transistor 722JIT just in time 723JPEG Joint Photographic Experts Group 724JRE Java Runtime Environment 725JSON JavaScript Object Notation 726JTAG joint test action group 727KASLR kernel address space layout randomization 728KB keyboard 729KB kilobyte 730KBD keyboard 731KBD kilobaud 732KCS keyboard controller style 733KLOC thousand lines of code 734KMS kernel-mode setting 735KPI kernel programming interface 736KVA kernel virtual address 737KVM kernel virtual machine 738KVM kernel virtual memory 739KVM keyboard, video, [and] mouse 740LAMP Linux Apache MySQL {Perl,PHP,Python} 741LAN local area network 742LAPIC local advanced programmable interrupt controller 743LAR load access rights 744LBA logical block addressing 745LBS location-based service 746LCD liquid crystal display 747LCP link control protocol 748LDA local delivery agent 749LDAP Lightweight Directory Access Protocol 750LDR light-dependent resistor 751LDT local descriptor table 752LE logical extent 753LED light emitting diode 754LELL low energy link layer 755LER label edge router 756LF line feed 757LF low frequency 758LFM lowest frequency mode 759LFN long file names 760LFO low-frequency oscillation 761LFS log-structured file system 762LFU least frequently used 763LHP loop heat pipe 764LIFO last in, first out 765LILO LInux LOader 766LILO last in, last out 767LINT local interrupt 768LIR local Internet registry 769LISP LISt Processor 770LISP Locator/ID Separation Protocol 771LKM {Linux,loadable} kernel module 772LKML Linux kernel mailing list 773LL load linked 774LL/SC load linked/store conditional 775LLC logical link control 776LLDP link layer discovery protocol 777LLF low level format 778LLMNR link-local multicast name resolution 779LLVM Low Level Virtual Machine 780LM long mode 781LMM link management mode 782LMP link management protocol 783LNO loop nest optimization 784LOC lines of code 785LOM lights-out management 786LPE Linux performance events 787LPC low pin count 788LPS local positioning system 789LRC longitudinal redundancy check 790LRM left-to-right mark 791LRO left-to-right override 792LRU least recently used 793LSAN Leak Sanitizer 794LSB Linux standards base 795LSB least significant {bit,byte} 796LSI large scale integration 797LSL load segment limit 798LSM log structured merge 799LSN Large Scale NAT 800LSN log sequence number 801LSR label switch router 802LTCC low temperature co-fired ceramic 803LTO linear tape-open 804LTO link time optimization 805LTR left to right 806LTR load task register 807LTR letter(-sized paper) 808LTS long term support 809LUA Lua Uppercase Accident 810LUN logical unit number 811LV logical volume 812LVM logical volume management 813LVT local vector table 814LVDS Low-Voltage Differential Signaling 815LWP light-weight process 816LZW Lempel Ziv Welch 817MAC mandatory access control 818MAC {media,medium} access control 819MAC message authentication {check,code} 820MADT multiple APIC descriptor table 821MB megabyte 822MBA multi-boot agent 823MBR master boot record 824MBS megabits per second 825MC memory controller 826MCA machine check architecture 827MCA MicroChannel architecture 828MCC multiversion concurrency control 829MCE machine check exception 830MCGA Multi-Color Graphics Array 831MCH memory controller hub 832MCM multi-chip module 833MCQ memory controlled queue 834MD machine-dependent 835MD-SAL model-driven service abstraction layer 836MDA mail delivery agent 837MDA Monochrome Display Adapter 838MDC Management Data Clock 839MDI Medium Dependent Interface 840MDI-X Medium Dependent Interface Crossover 841MDIO Management Data Input/Output 842MDMX MIPS Digital Media eXtension 843MDRAM multibank dynamic random access memory 844MESI modified, exclusive, shared, invalid 845MFC merge from current 846MFC Microsoft Foundation Classes 847MFM modified frequency modulation 848MFU most frequently used 849MI machine-independent 850MIB management information base 851MIC message integrity {check,code} 852MID mobile Internet device 853MIDI musical instrument digital interface 854MIF management information format 855MII media independent interface 856MIM man in the middle 857MIMD multiple instruction, multiple data 858MIME Multipurpose Internet Mail Extensions 859MIMO multiple input multiple output 860MIPS million instructions per second 861MIPS Microprocessor without Interlocked Pipeline Stages 862MISD multiple instruction, single data 863MIT Massachusetts Institute of Technology 864MITM man in the middle 865ML machine language 866ML machine learning 867ML mailing list 868ML markup language 869ML maximum likelihood 870MLC multi-level cell 871MLD multicast listener discovery 872MLHP micro loop heat pipe 873MMF multi-mode fiber 874MMIC monolithic microwave integrated circuit 875MMIO memory mapped input/output 876MMORPG massive multiplayer online role playing game 877MMU memory management unit 878MMX matrix math extension 879MMX multimedia extension 880MMX multiple math extension 881MO magneto-optical 882MOESI modified, owned, exclusive, shared, invalid 883MOF maximum operating frequency 884MOSFET metal-oxide-semiconductor field-effect transistor 885MOSI modified, owned, shared, invalid 886MP multi-platform 887MP multiplayer 888MP {multiprocessing,multiprocessor} 889MPEG moving picture experts group 890MPI message passing interface 891MPLS Multiprotocol Label Switching 892MPP massively parallel processor 893MPS memory pool system 894MPS multiprocessor specification 895MQTT Message Queuing Telemetry Transport 896MR modem ready 897MRU most recently used 898MS Microsoft 899MSAN Memory Sanitizer 900MSB most significant {bit,byte} 901MSC message sequence chart 902MSE mean square error 903MSF minutes seconds frames 904MSI message signaled interrupt 905MSI modified, shared, invalid 906MSR {machine state,model-specific} register 907MSS maximum segment size 908MSTP Multiple Spanning Tree Protocol 909MT machine translation 910MTA mail transfer agent 911MTBF mean time between failures 912MTP media transfer protocol 913MTRR memory type range register 914MTTF mean time to failure 915MTU maximum transmission unit 916MUA mail user agent 917MUD multi-user domain 918MVCC multiversion concurrency control 919MWE module width encoding 920MX mail exchange 921NACK negative acknowledgement 922NAK negative acknowledgement 923NAN not a number 924NAPT Network Address Port Translation 925NAS network attached storage 926NAT network address translation 927NAV network allocation vector 928NC numerical control 929NCO numerically-controlled oscillator 930NCP Network Control Protocol 931NCQ native command queuing 932ND neighbor discovery 933NDFA nondeterministic finite automaton 934NE numeric error 935NEWS Network extensible Window System 936NFA nondeterministic finite automaton 937NFC near-field communication 938NFCI no functional change intended 939NFS network file system 940NFV network function virtualization 941NIA next instruction address 942NIC network information center 943NIC network interface card 944NIDS network intrusion detection system 945NIP network interface protocol 946NIPS network intrusion prevention system 947NIS network information service 948NIST National Institute of Standards and Technology 949NLS native language support 950NMI non-maskable interrupt 951NNTP Network News Transfer Protocol 952NOC network operations center 953NOP no operation 954NOS network operating system 955NP nondeterministic polynomial time 956NRND not recommended for new designs 957NRZ non-return to zero 958NSA nation-state adversary 959NSA no such agency 960NSA National Security Agency 961NTM non-deterministic Turing machine 962NTP Network Time Protocol 963NUMA non-uniform memory access 964NVRAM non-volatile random access memory 965NW not write-through 966NX no execute 967OAEP optimal asymmetric encryption padding 968OAM operations, administration, and {management,maintenance} 969OBO off by one 970OBOE off by one error 971OCL object constraint language 972OCR optical character recognition 973ODCM on-demand clock modulation 974ODT on-die termination 975OEM original equipment manufacturer 976OFB output feedback 977OFDM orthogonal frequency division multiplexing 978OFET organic field-effect transistor 979OLAP online analytical processing 980OLE object linking and embedding 981OLTP online transaction processing 982ONFI open nand flash interface 983OO OpenOffice 984OO object oriented 985OOB out of band 986OOE out of order execution 987OOM out of memory 988OOO OpenOffice.org 989OOP object oriented programming 990OOPS object oriented programming systems 991OOSE object oriented software engineering 992OPM operations per minute 993OPS operations per second 994OQL Object Query Language 995ORB object request broker 996ORM object-relational mapping 997OS operating system 998OSD open source definition 999OSF open software foundation 1000OSI Open Source Initiative 1001OSI open systems interconnection 1002OSPF open shortest path first 1003OSPM OS power management 1004OSS open sound system 1005OSS open source software 1006OSVW operating system visible workarounds 1007OTP one time password 1008OTP open telecom platform 1009OU organizational unit 1010OUI organizationally unique identifier 1011OWL Web Ontology Language 1012P2P PCI to PCI 1013P2P peer to peer 1014PA phase accumulator 1015PA physical address 1016PAAS platform as a service 1017PAC phase-amplitude converter 1018PAE physical address extension 1019PAL phase alternating line 1020PAL programmable array logic 1021PAM pluggable authentication modules 1022PAM pulse amplitude modulation 1023PAP password authentication protocol 1024PAT page attribute table 1025PAT port address translation 1026PATA parallel ATA 1027PAX portable archive exchange 1028PBE pending break encoding 1029PBE programming by example 1030PC personal computer 1031PC program counter 1032PCB printed circuit board 1033PCB process control block 1034PCB Protocol Control Block 1035PCC Portable C Compiler 1036PCD page-level cache disable 1037PCE path computation element 1038PCE performance-monitor counter enable 1039PCEP Path Computation Element Protocol 1040PCH platform controller hub 1041PCI peripheral component interconnect 1042PCM phase change memory 1043PCM pulse code modulation 1044PCMCIA Personal Computer Memory Card International Association 1045PCP Port Control Protocol 1046PD public domain 1047PDA personal digital assistant 1048PDA pushdown automaton 1049PDAG propositional directed acyclic graph 1050PDB power distribution board 1051PDF portable document format 1052PDM pulse-duration modulation 1053PDN pull-down network 1054PDP page {descriptor,directory} page 1055PDS product data sheet 1056PDU protocol data unit 1057PE protection enable 1058PEAP Protected EAP 1059PECI platform environment control interface 1060PEP protocol extension protocol 1061PER packed encoding rules 1062PFS perfect forward secrecy 1063PGAS partitioned global address space 1064PGE page global enable 1065PGP Pretty Good Privacy 1066PHB PCI host bridge 1067PHP PHP: Hypertext Preprocessor 1068PIC performance instrumentation counters 1069PIC position independent code 1070PIC programmable interrupt controller 1071PICNIC problem in chair, not in computer 1072PID process id 1073PIE position independent executable 1074PIL Priority Interrupt Level 1075PIM personal information manager 1076PIM platform-independent model 1077PIO programmed input/output 1078PIPT physically indexed, physically tagged 1079PIQ prefetch input queue 1080PIT programmable interrupt timer 1081PIV personal identity verification 1082PIX Private Internet eXchange 1083PKCS public-key cryptography standards 1084PKI public key infrastructure 1085PLC programmable logic controller 1086PLD programmable logic device 1087PLL phase locked loop 1088PLRU pseudo LRU 1089PLTM package level thermal management 1090PM power management 1091PM {phase,pulse} modulation 1092PMC performance monitoring counters 1093PME power management event 1094PMEG page map entry group 1095PMI performance monitoring infrastructure 1096PMI platform management interrupt 1097PMIC power management integrated circut 1098PMIO port-mapped input/output 1099PMT photo-multiplier tube 1100PMU performance monitoring units 1101PMU power management unit 1102PNG portable network graphics 1103PNP plug and play 1104POE power over ethernet 1105POF probability of failure 1106POP Post Office Protocol 1107POP power on password 1108POSIX Portable Operating System Interface [for Unix] 1109POST power on self test 1110POTS plain old telephone system 1111POWER Performance Optimization With Enhanced RISC 1112POWERPC Performance Optimization With Enhanced RISC - Performance Computing 1113PP pair programming 1114PPB PCI [to] PCI bridge 1115PPC PowerPC 1116PPC Power Performance Computing 1117PPI pixels per inch 1118PPM pages per minute 1119PPP Point-to-Point Protocol 1120PPPOA Point-to-Point Protocol over ATM 1121PPPOE Point-to-Point Protocol over Ethernet 1122PPU physics processing unit 1123PRAM Parameter RAM 1124PRBS pseudorandom bit sequence 1125PRG pseudorandom generator 1126PRF pseudorandom function [family] 1127PRML partial response, maximum likelihood 1128PRN pseudorandom {noise,number} 1129PRNG pseudorandom number generator 1130PROM programmable read only memory 1131PRP pseudorandom permutation 1132PRU Programmable Realtime Unit 1133PS PostScript 1134PSD power spectral density 1135PSE page size extensions 1136PSK phase shift keying 1137PSK pre-shared key 1138PSTN public switched telephone network 1139PSW program status word 1140PTE page table entry 1141PTLA pseudo top level aggregator 1142PTP page table page 1143PTV perceived target value 1144PU processing unit 1145PUC personal unblocking code 1146PUN physical unit number 1147PV physical volume 1148PVG physical volume group 1149PVI protected-mode virtual interrupt 1150PVST Per-VLAN Spanning Tree 1151PWM pulse width modulation 1152PXE preboot execution environment 1153QA quality assurance 1154QAM quadrature amplitude modulation 1155QAM quality assurance management 1156QBE query by example 1157QC quality control 1158QDI quasi delay insensitive 1159QCIF quarter common intermediate format 1160QOS quality of service 1161QVL qualified vendor list 1162R/O read only 1163R/W read/write 1164RA receiver address 1165RA remote assistance 1166RA resource affinity 1167RA router advertisement 1168RAD rapid application development 1169RAID redundant array of {independent,inexpensive} disks 1170RAM random access memory 1171RAS reliability, availability and serviceability 1172RAS remote access service 1173RAS restartable atomic sequence 1174RAS row address strobe 1175RBF radial basis function 1176RBT red-black tree 1177RC release candidate 1178RC remote control 1179RC run commands 1180RCS Revision Control System 1181RCS revision control system 1182RCU read, copy, update 1183RDB Rigid Disk Block 1184RDBMS relational database management system 1185RDF Resource Description Framework 1186RDM relational data model 1187RDMA remote direct memory access 1188RDRAM Rambus DRAM 1189RE regular expression 1190REST representational state transfer 1191RF radio frequency 1192RFI radio frequency interference 1193RFO request for ownership 1194RGB red green blue 1195RGBA red green blue alpha 1196RGMII reduced gigabit media independent interface 1197RH read hit 1198RHEL Red Hat Enterprise Linux 1199RHL Red Hat Linux 1200RIB routing information base 1201RIFF Resource Interchange File Format 1202RIP Raster Image Processor 1203RIP Routing Information Protocol 1204RIR regional Internet registry 1205RISC reduced instruction set {computer,computing} 1206RKM ROM Kernel Manual 1207RLE run length encoding 1208RLL run length limited 1209RLO right-to-left override 1210RM read miss 1211RMCP Remote Management Control Protocol 1212RMI remote method invocation 1213RMO Relaxed Memory Ordering 1214RMPM rapid memory power management 1215RMS root mean square 1216RMW read, modify, write 1217RNG random number generator 1218ROM read only memory 1219RPC remote procedure call 1220RPKI resource PKI 1221RPL requested privilege level 1222RPM revolutions per minute 1223RPN reverse Polish notation 1224RPVST Rapid Per-VLAN Spanning Tree 1225RR random replacement 1226RR round robin 1227RS relay station 1228RSA Rivest, Shamir, [and] Adleman 1229RSIP Realm Specific IP 1230RSN Robust Secure Network 1231RSS really simple syndication 1232RSS residual sum of squares 1233RSTP Rapid Spanning Tree Protocol 1234RT real time 1235RTC real time clock 1236RTC real time computing 1237RTF rich text format 1238RTL register transfer language 1239RTL resistor-transistor logic 1240RTL right to left 1241RTOS real time operating system 1242RTS request to send 1243RTT round trip time 1244RUP rational unified process 1245RW Rabin-Williams 1246RWM read-write memory 1247RX {receive,receiver} 1248S/PDIF Sony/Philips Digital Interface Format 1249SA security advisory 1250SA security association 1251SA source address 1252SA structured analysis 1253SAAS software as a service 1254SACD super audio compact disc 1255SAD security association database 1256SAL {service,system} abstraction layer 1257SAM serial access memory 1258SAM sum addressed memory 1259SAML security assertion markup language 1260SAN storage area network 1261SAP service access point 1262SAPIC streamlined advanced programmable interrupt controller 1263SASD structured analysis, structured design 1264SASI Shugart Associates System Interface 1265SASL simple authentication [and] security layer 1266SATA serial advanced technology attachment 1267SAX simple API for XML 1268SB sound blaster 1269SBU standard build unit 1270SC store conditional 1271SCA source code analyzer 1272SCADA supervisory control and data acquisition 1273SCC single chip cloud 1274SCC source code control 1275SCCS Source Code Control System 1276SCI scalable coherent interface 1277SCI system control interrupt 1278SCM software configuration management 1279SCM source code management 1280SCM storage-class memory 1281SCO synchronous connection orientated 1282SCP secure copy 1283SCSI Small Computer System Interface 1284SCTP Stream Control Transmission Protocol 1285SDEI software delegated exception interface 1286SDI symbol deinterleave 1287SDK software development kit 1288SDL Simple Declarative Language 1289SDL Simple Direct-media Layer 1290SDLC {software,system,systems} development life cycle 1291SDN software defined networking 1292SDP Session Description Protocol 1293SDRAM synchronous dynamic random access memory 1294SDS software defined storage 1295SDT syntax-directed translation 1296SEA synchronous external abort 1297SEGV segmentation violation 1298SEO search engine optimization 1299SES SCSI enclosure services 1300SFC sequential function chart 1301SFI simple firmware interface 1302SFI software fault isolation 1303SFTP SSH File Transfer Protocol 1304SFTP Serial File Transfer Protocol 1305SFTP Simple File Transfer Protocol 1306SGMII serial gigabit media independent interface 1307SGRAM synchronous graphics random access memory 1308SHA secure hash algorithm 1309SIDH supersingular isogeny Diffie-Hellman 1310SIEM security information and event management 1311SIF source input format 1312SIFS short inter-frame space 1313SIM subscriber identity module 1314SIMD single instruction, multiple data 1315SIMM single inline memory module 1316SIP Session Initiation Protocol 1317SIR signal-to-interference ratio 1318SIR slow infrared 1319SISD single instruction, single data 1320SLAAC stateless address auto-configuration 1321SLC single-level cell 1322SLDRAM synchronous-link dynamic random access memory 1323SLED single large expensive disk 1324SLI scalable link interface 1325SLI scan-line interleave 1326SLOC source lines of code 1327SLRU segmented LRU 1328SMA smart memory access 1329SMAF system management action field 1330SMAP Simple Mail Access Protocol 1331SMAP supervisor mode access prevention 1332SMART self-monitoring analysis and reporting technology 1333SMB Server Message Block 1334SMB system management bus 1335SMBIOS System Management BIOS 1336SMC system management controller 1337SMD storage module device 1338SMEP supervisor mode execution protection 1339SMF single mode fiber 1340SMI structure of management information 1341SMI system management interrupt 1342SMM system management mode 1343SMP symmetric multiprocessing 1344SMT simultaneous multithreading 1345SMTP Simple Mail Transfer Protocol 1346SMU system management unit 1347SNA systems network architecture 1348SNAP Sub-Network Access Protocol 1349SNIA Storage Networking Industry Association 1350SNMP Simple Network Management Protocol 1351SNR signal-to-noise ratio 1352SOA service oriented architecture 1353SOAP Simple Object Access Protocol 1354SOC system on chip 1355SOF start of frame 1356SOH start of header 1357SOHO small office/home office 1358SOL serial over LAN 1359SP service pack 1360SP stack pointer 1361SPA storage pool allocator 1362SPARC scalable processor architecture 1363SPARQL SPARQL Protocol and RDF Query Language 1364SPD security policy database 1365SPD serial presence detect 1366SPDIF Sony/Philips digital interface format 1367SPI serial peripheral interface 1368SPI stateful packet inspection 1369SPL system interrupt priority level 1370SPL spinlock 1371SPMD single process, multiple data 1372SPR special purpose register 1373SPT sectors per track 1374SQA software quality assurance 1375SQCIF sub quarter common intermediate format 1376SQL Structured Query Language 1377SRAM static random access memory 1378SRC sample rate conversion 1379SRP SCSI RDMA protocol 1380SS self-snoop 1381SS stack segment 1382SSA static single assignment 1383SSAP source service access point 1384SSB single-sideband modulation 1385SSD solid state drive 1386SSE streaming SIMD extensions 1387SSFDC solid state floppy disc card 1388SSH secure shell 1389SSI server side includes 1390SSID service set identifier 1391SSL secure sockets layer 1392SSP stack smashing protection 1393STC software thermal control 1394STD state transition diagram 1395STOMP Streaming Text Oriented Messaging Protocol 1396STP Spanning Tree Protocol 1397STP shielded twisted pair 1398SUN Stanford University Network 1399SUS Single Unix Specification 1400SUT system under test 1401SVG scalable vector graphics 1402SVGA Super Video Graphics Array 1403SVI {switch,switched} virtual interface 1404SVM secure virtual machine 1405SVM support vector machine 1406SVR System V Release 1407SVS Separate Virtual Space 1408SWF Shockwave Flash 1409SWIG simplified wrapper [and] interface generator 1410SYR symbol timing recovery 1411TA test assertion 1412TA transmitter address 1413TAI international atomic time 1414TAO track at once 1415TAOCP The Art of Computer Programming 1416TAP Test Anything Protocol 1417TAS test and set 1418TB terabyte 1419TCB trace capture buffer 1420TCB trusted computing base 1421TCC thermal control circuit 1422TCL tool command language 1423TCP Transmission Control Protocol 1424TCQ tagged command queueing 1425TDC time [to] digital converter 1426TDD test-driven development 1427TDD time division duplex 1428TDM time division multiplexing 1429TDMA time division multiple access 1430TDOA time difference of arrival 1431TDP thermal design {point,power} 1432TECO Text Editor and Corrector 1433TFT thin film transistor 1434TFTP Trivial File Transfer Protocol 1435TIAS try it and see 1436TIFF tagged image file format 1437TITS try it to see 1438TK temporal key 1439TKIP Temporal Key Integrity Protocol 1440TLA top level aggregator 1441TLB translation lookaside buffer 1442TLD top level domain 1443TLI transport layer interface 1444TLS thread local storage 1445TLS transport layer security 1446TM Turing machine 1447TM thermal monitor 1448TMDS transition minimized differential signaling 1449TMO timeout 1450TOD time of day 1451TOS terms of service 1452TOS trusted operating system 1453TOS type of service 1454TP transaction processing 1455TPI tracks per inch 1456TPM transactions per minute 1457TPM trusted platform module 1458TPR task priority register 1459TPS transactions per second 1460TPS transmission parameters signaling 1461TR task register 1462TR token ring 1463TRL timing recovery loop 1464TRNG true random number generator 1465TS terminal services 1466TS time series 1467TS time stamp 1468TS transport stream 1469TSAN Thread Sanitizer 1470TSC time stamp counter 1471TSD time stamp disable 1472TSDB time series database 1473TSL test, set, lock 1474TSO time sharing option 1475TSO Total Store Ordering 1476TSP Time-Stamp Protocol 1477TSP Tunnel Setup Protocol 1478TSP time synchronization protocol 1479TSP traveling salesman problem 1480TSS task state segment 1481TTL time to live 1482TTL transistor-transistor logic 1483TTM translation table maps 1484TTY teletype 1485TUI {terminal,text-based,textual} user interface 1486TX {transmit out,transmitter} 1487TXG transaction group 1488TZ time zone 1489UAC user {access,account} control 1490UAF use-after-free 1491UART universal asynchronous receiver/transmitter 1492UAT user acceptance testing 1493UB undefined behavior 1494UBSAN Undefined Behavior Sanitizer 1495UC uncacheable 1496UCS uniform-cost search 1497UDMA ultra DMA 1498UDO ultra density optical 1499UDP User Datagram Protocol 1500UEFI unified extensible firmware interface 1501UFS Unix File System 1502UGA universal graphics adapter 1503UI unit interval 1504UI user interface 1505UICC universal integrated circuit card 1506UID unique identifier 1507UID user identifier 1508UL upload 1509UMA uniform memory access 1510UMA upper memory area 1511UMB upper memory block 1512UML unified modeling language 1513UMPC ultra-mobile PC 1514UPNP universal plug and play 1515UPS uninterruptible power supply 1516URI uniform resource identifier 1517URL uniform resource locator 1518URN uniform resource name 1519USART universal synchronous/asynchronous receiver/transmitter 1520USB universal serial bus 1521USWC uncacheable speculative write combining 1522UT unit test 1523UTC coordinated universal time 1524UTP unshielded twisted pair 1525UUCP Unix-to-Unix Copy Protocol 1526UUID universally unique identifier 1527UUOC useless use of cat 1528UUT unit under test 1529UX user experience 1530VA vertical alignment 1531VA virtual address 1532VA volt-ampere 1533VAX virtual address extension 1534VB Visual Basic 1535VCA variable-gain amplifier 1536VCC common collector voltage 1537VCF voltage-controlled filter 1538VCM virtual channel memory 1539VCO voltage-controlled oscillator 1540VCS version control system 1541VESA Video Electronics Standards Association 1542VFO variable-frequency oscillator 1543VG volume group 1544VGA Video Graphics Array 1545VHDCI very high density cable interconnect 1546VID {VLAN,voltage level} identifier 1547VIM Vi IMproved 1548VIPT virtually indexed, physically tagged 1549VIVT virtually indexed, virtually tagged 1550VLAN virtual local area network 1551VLIW very long instruction word 1552VLSI very large scale integration 1553VLSM variable length subnet mask 1554VM virtual {machine,memory} 1555VME virtual mode extension 1556VMX vector multimedia extensions 1557VMX virtual machine extensions 1558VOD video on demand 1559VPN virtual private network 1560VR virtual reality 1561VRAM video random access memory 1562VRF virtual routing and forwarding 1563VRM voltage regulator module 1564VRRP Virtual Router Redundancy Protocol 1565VSTP VLAN Spanning Tree Protocol 1566VTP VLAN Trunking Protocol 1567W watt 1568W3C World Wide Web Consortium 1569WAMP Web Application Messaging Protocol 1570WAN wide area network 1571WAP Wireless Application Protocol 1572WAP wireless access point 1573WDM Windows Driver Model 1574WDDM Windows Display Driver Model 1575WDT watchdog timer 1576WEP Wired Equivalent Privacy 1577WFI wait for interrupt 1578WFQ weighted fair queuing 1579WH write hit 1580WIFI wireless fidelity 1581WLAN wireless local area network 1582WM write miss 1583WMI Windows Management Instrumentation 1584WOL Wake-on-LAN 1585WOM Wake-on-Modem 1586WOR Wake-on-Ring 1587WORM write once read many 1588WP WordPerfect 1589WP word processor 1590WP write protect 1591WPA Wi-Fi Protected Access 1592WPA2 Wi-Fi Protected Access II 1593WPS Wi-Fi Protected Setup 1594WRAM window random access memory 1595WS web services 1596WTC write through caching 1597WWAN wireless wide area network 1598WWW world wide web 1599WYSIAYG what you see is all you get 1600WYSIWYG what you see is what you get 1601XBAR crossbar 1602XDMCP X Display Manager control protocol 1603XER XML encoding rules 1604XGA Extended Graphics Array 1605XHR XMLHttpRequest 1606XIP execute in place 1607XML Extensible Markup Language 1608XNA XNA's not acronymed 1609XNS Xerox network systems 1610XOR exclusive or 1611XP extreme programming 1612XSI X/Open System Interface 1613XSL extensible stylesheet language 1614XSS cross site scripting 1615XT extended technology 1616XTI X/Open transport interface 1617XUL XML user interface language 1618YACC yet another compiler compiler 1619YAML YAML ain't markup language 1620YANG yet another next generation 1621YAWPFAPR you are welcome; please file a problem report 1622YP Yellow Pages 1623YTD year to date 1624ZAP ZFS attribute processor 1625ZBR zone bit recording 1626ZFOD zero-filled on demand 1627ZFS zettabyte file system 1628ZIF zero insertion force 1629ZIFS zero insertion force socket 1630ZIL ZFS intent log 1631ZMA zone multicast address 1632ZPL ZFS Posix layer 1633ZVOL ZFS Volume 1634