digital television group

- call pickup group
- cathode group
- channels group
- circuit group
- closed-user group
- common-line group
- contact group
- data-packet group
- data-time group
- dedicated-line group
- departmental communication radio group
- digital group
- digital television group
- digital transmission group
- diode group
- direct-channel group
- duplex radio group
- entended numbers group
- Euro-beam group
- exchange group
- external interference group
- full accessible group
- fundamental group
- generator data group
- group of blocks
- group of computers
- group of pictures
- half-group
- high-usage trunk group
- hunting group
- link group
- locked group
- low-orbit group
- master group
- messages group
- multimaster group
- nonlocked group
- Or Borealis group
- Or Concordia group
- orbit group
- outlet group
- partially-accessible group
- peer group
- primary channels group
- programmable-talk group
- pulse group
- radio group
- road communication radio group
- screening group
- secondary channels group
- terminal-endpoint functional group
- tertiary channels group
- through group
- transformer group
- trunk group
- trunking channel group
- twelve-channel group
- user group

- analog subscriber set
- answer relay set
- antisidetone set
- ASCII-character set
- automatic zero set
- auxiliary communication type set
- beacon set
- bridging set
- callback-telephone set
- channel set
- character set
- coded-character set
- command set
- common-battery set
- conference set
- conference-communication set
- converter set
- cord set
- cradle set
- crystal set
- customer set
- data set
- device-control code set
- dial-telephone set
- dictaphone set
- digital subscriber set
- direct-data set
- discharging set
- domestic-television set
- duplex-trunk communication set
- executive set
- expansion set
- extension set
- fiber-optic terminal set
- four-wire set
- freehand set
- frequency changer set
- G1 code set
- G2 code set
- generating set
- ground-to-airplane UHF-communication set
- handset set
- hybrid set
- incoming set
- industry TV-set
- infrared-communications set
- interface set
- key set
- key-telephone set
- language set
- LH-termination set
- local battery telephone set
- local communication set
- long distance dial set
- loud-speaking communication set
- magnet telephone set
- magneto telephone set
- manual telephone set
- matching relay set
- mosaic graphic set
- noise/interference set
- noise-immune set
- nontemporary data set
- null set
- n-wire set
- open-standard digital television set
- operator's set
- outgoing set
- paging telephone set
- paired subscriber's set
- paired telephone set
- PBX components set
- personal hearing set
- polar set
- polar-battery set
- primary group converting set
- primary trunking set
- projection set
- push-button set
- quaternary trunking set
- radiac set
- radio set
- radiosonde set
- receiving set
- relay set
- resistance set
- satellite communication set
- searching signaling set
- selective communication set
- SHF-antenna set
- simplex trunk communication set
- speaking devices set
- standard code set
- standard cord set
- station-master assistant set
- subaudio telegraph set
- subscriber set
- subscriber's cord set
- telegraph set
- telephone set
- television set
- temporary data set
- terminating set
- terrestrial satellite radio set
- tester set
- time-signal set
- tone dialing set
- transmission measuring set
- transmission test set
- transmitting set
- transponder set
- trunk communication set
- UHF-device set
- universal cord set
- universal relay set
- USB-set
- user's set

- acoustic alarm system
- acoustic image system
- acoustic systems
- actiontrack system
- active IR-system
- actuator system
- adaptive communication system
- adaptive teleinformation system
- adaptive telemetering system
- advanced information system
- Afsatcom system
- air system
- aircraft intercommunication system
- airfield communication system
- air-ground automatic system
- airline reservation system
- air-to-ground TV system
- alarm signal system
- alarm system
- all-channel signaling system
- ALL-IN-ONE system
- alphanumeric system
- amplified speaker system
- amplitude shift-keying system
- AMPS system
- analog cellular communication system
- analog cellular system
- analog component video system
- analog television system
- analog tropospheric system
- anisochronous system
- antenna system
- antitheft system
- AR system
- Arabsat system
- ASK system
- associated channel analog system
- asynchronous address communication system
- audio recording system
- Aurora system
- Aussat system
- automatic communication system
- automatic connection establishment system
- automatic control system
- automatic data acquisition system
- automatic telegraphy system
- automatic telephone system
- automatic tuning system
- automatized cellular system
- auxiliary alarm system
- balanced cable transmission system
- band sharing system
- base station system
- baseband system
- basic input/output system
- bass-reflex speaker system
- batch processing system
- batch transmission system
- batch-and-forward system
- batteryless system
- bilateral CTV system
- binary tariff system
- biocontrol system
- bit parallel interface system
- bit transport system
- bridge duplex system
- broadband mobile system
- broadcast satellite system
- broadcasting delivery media systems
- burglar alarm system
- byte-serial interface system
- cabinet system
- cabinetless system
- cable distribution system
- cable TV system
- call-accounting system
- call-answering system
- call-counting system
- call-distributing system
- call-processing system
- call-queueing system
- camp-on system
- CAPTAIN system
- car component audio system
- carrier reinsertion system
- carrier system
- carrier-communication system
- carrier-current communication system
- Cassegrain-Schmidt system
- cassette recording system
- cassette reproducing system
- CATRIN system
- caution system
- CD 900 system
- cellular system
- cellular-radio system
- central-battery system
- centralized control system
- chirp binary telegraph system
- cipher system
- circuit switched telecommunication system
- circuit switching telecommunication system
- circular telecontrol system
- clock system
- closed-circuit communication system
- closed-circuit telegraph system
- closed-numbering system
- code-dependent system
- code-division multiple access system
- code-independent system
- code-insensitive system
- code-sensitive system
- coding system
- coherent fiber-optic system
- collimating system
- collocated system
- color separating system
- combined numbering system
- combined power supply system
- combined satellite communication system
- common-battery system
- common-carrier system
- common-channel signaling system
- common-engineering communication system
- common-purpose cellular system
- common-using band system
- common-using cordless telephone system
- common-using paging system
- communication system
- communication traffic system
- communications system
- community antenna system
- community antenna television system
- community TV-system
- commununication switching system
- compact disk digital audio system
- compatible color television system
- compatible single sideband system
- compatible single-band system
- compatible TV-system
- complex radio communication system
- computer vision system
- computer-telephone system
- Comsar system
- Comsat system
- Conax system
- concentrated-insonation system
- conference system
- conference-communication system
- congested system
- congress-class system
- constant-current system
- control generating system
- conventional television system
- Conversant system
- cordless-communication system
- crossbar system
- crossed-coincident microphone system
- Crosspoint system
- CSE system
- C-system
- cubical video projecting system
- data processing system
- data system
- data transport system
- data-collection system
- data-compression system
- data-exchange system
- dataflow system
- data-gathering system
- data-handling system
- data-measuring system
- data-reduction system
- data-transmission system
- Decca Navigator system
- DECfax system
- decision-feedback system
- dedicated control channel system
- dedicated multimedia system
- delta-sigma system
- deluxe presentation system
- departmental communication system
- desktop-video system
- DFS/Copernicus system
- dial-telephone system
- differential phase shift-keying system
- differential-duplex system
- differential-magnetic system
- digital camera system
- digital hybrid-key telephone system
- digital mass storage system
- digital microwave radio transmission system
- digital telephone communication system
- digital transmission system
- digital TV-communication system
- Digital UNIX system
- digital-analog system
- digital-cellular system
- digital-data modulation system
- digital-effect system
- digital-message entry system
- digital-termination system
- direct-broadcasting satellite system
- directing system
- direct-modulation system
- direct-sequence system
- direct-telephone communication system
- discrete communication system
- discrete sound system
- discrete-addressing system
- disk-operating system
- DISOSS system
- dispatch telephone communication system
- dispatch-center system
- dispersed-insonation system
- distributed-insonation system
- distributed-processing system
- documental-type communication system
- Dolby systems
- domestic satellite communication system
- double-band telephone communication system
- double-channel transmission system
- double-current transmission system
- double-pole communication system
- double-sideband large carrier system
- DSCS system
- D-system
- dual-cable system
- dual-reflector system
- duplexed system
- Earth-to-space transmission system
- ECM system
- electric communication system
- electronic antishock system
- electronic data-gathering system
- electronic data-processing system
- electronic-message system
- electronic-scanning system
- electronic-switching system
- Ellipso system
- emergency telephone communication system
- emergency-broadcast system
- EMX system
- equidistant system
- error-correction system
- error-detection system
- Eutelsat system
- extensible system
- external paging system
- facsimile system
- fast-acting servicing system
- fault-tolerant system
- fax communication system
- fax transmitting system
- feed system
- fiber transmission system
- fiber-optic transmission system
- field-sequential system
- final mile system
- finishing system
- fire alarm system
- fire warning system
- first generation cellular system
- five-channel communication system
- fixed satellite system
- Flexcam system
- flexible access system
- Flitsatcom system
- focusing system
- four-channel sound system
- four-dimensional system
- four-wire telephone communication system
- frame-sequential system
- frequency shift-keying system
- frequency-carrier system
- frequency-control system
- front-bass reflex speaker system
- fully digital system
- gate system
- Gaussian system
- generalized system
- generating dynamic system
- generator-dc-motor system
- GIGASET radio system
- global positioning system
- Global system
- Gopher system
- grandfathered system
- group-alerting and dispatching system
- guide system
- hard-wired CCTV system
- hazard system
- helical-scan system
- HF-synchronizing system
- high-precision navigating system
- Hi-linear system
- home system
- home-telephone system
- home-type system
- homing-guidance system
- host system
- hydroacoustic system
- ideal communication system
- idealized system
- image informaion system
- image-forming system
- immedial servicing system
- incompatible system
- independent system
- information retrieval system
- information system radio system
- information system
- information-feedback system
- information-measuring system
- infrared alarm system
- Inmarsat system
- Inmarsat-A system
- Inmarsat-B system
- Inmarsat-C system
- Inmarsat-D system
- Inmarsat-M system
- Inmarsat-P system
- integrated telephone system
- integrated videographic teleconferencing system
- integrated-antenna system
- integrated-communication system
- integrated-modulation system
- integrated-office system
- Intelsat system
- interactive system
- intercarrier-sound system
- intercommunication system
- intercontinental tropospheric system
- interlock system
- intermachine exchange system
- intermediate system
- international communication system
- interphone system
- Intervision system
- intraband signaling system
- intruder alarm system
- inward-outward dialing system
- ionoscatter system
- ionosphere sounder system
- ionospheric system
- Iridium system
- isolated system
- Italsat system
- J-carrier system
- joint-multichannel trunking and switching system
- K-carrier system
- key system
- key-telephone system
- land satellite communication system
- large-grained communication system
- laser communication system
- L-band satellite system
- L-carrier system
- Leasat system
- lightning protection system
- limited distortion system
- line amplifiers system
- link system
- little-channel relay system
- local alarm system
- local battery system
- local communication system
- local radio paging system
- long-haul system
- long-range system
- loop system
- loud-speaking communication system
- low-traffic system
- magnetic tape recording system
- Mail system
- management-information system
- manual cellular system system
- manual telephone set system
- Marisat system
- master television system
- master-antenna television system
- matrix sound system
- message feedback system
- message procession system
- message registration system
- message-switched system
- meteor radio system
- Metrobus system
- micro component system
- Micro Press Cluster Printing system
- micro-lens system
- microprocessor system
- microwave relay system
- midi system
- mine radio telephone system
- mini system
- mixed media system
- mixed numbering system
- mobile cellular communication system
- mobile land communication system
- mobile radio system
- mobile relay system
- mobile system
- modulated system
- monetary mobile system
- MS-Mail system
- multiareal system
- multicassette system
- multichannel telephone system
- multicomputer system
- multidisk system
- multiformat recording system
- multifrequency tone signaling system
- multiguard system
- multilevel mixed system
- multimedia system
- multiple-channel system
- multiqueue system
- Multiscrypt system
- multistandard system
- multitrack editing system
- mutibeam antenna system
- muting system
- Nagravision system
- NAMTS system
- narrow-angle TV system
- national communication system
- navigation system
- n-channel communication system
- n-channel DPSK system
- n-channel transmission system
- network standalone system
- network system
- network-operation system
- networks numbering system
- neutral direct-current telegraph system
- n-head video system
- NMT system
- noise-reduction system
- nonhoming tuning system
- noninterlaced television system
- nonsegmented system
- Norsat system
- n-satellite system system
- n-tone DPSK system
- n-tone MFSK system
- NTSC system
- NTT system
- obligatory message system
- Odyssey system
- off-line system
- on-line computer system
- on-line secured system
- open numbering system
- open system
- operative-engineering communication system
- opposite signals system
- optical-communication system
- optical-information system
- optical-projection system
- optoelectronic system
- oscillating system
- oscillation system
- outband signaling system
- package-and-resource tracking system
- pagemaster system
- paging system
- PAL system
- parametric system
- PATHWORKS system
- pattern recognition system
- personal holding guard system
- phase shift-keying system
- phone system
- Piccolo system
- pilot-controller system
- polar direct-current telegraph system
- portable mobile system
- power control system
- power controlling system
- power-line carrier system
- power-supply system
- press-to-talk system
- Prestel system
- primary-supply system
- privacy system
- private branch paging system
- private movable system
- private videodata system
- private videotex system
- process-interface system
- PROFS system
- programmable cross-connect system
- programmable cross-connected system
- programmed radio system
- prompting system
- protected wireline distribution system
- protection system
- pseudoquadraphony system
- pseudotrunking system
- public videodata system
- public videotex system
- pulse-code system
- pulse-frequency system
- pulse-time system
- quadraphonic sound system
- quadruple-diversity system
- R1 system
- R2 system
- radio buoy system
- radio command system
- radio communication system
- Radio Data system
- radio facsimile system
- Radiocom 2000 system
- radio-control system
- radio-paging system
- radio-relay system
- radiosonde-radio-wind system
- radio-telemetering system
- real time pulse-echo system
- real time system
- receiver lockout system
- recording system
- recovery system
- redundant system
- reference-information system
- regional electronic payment system
- relay-radio system
- remote concentrating system
- remote control system
- remote diagnostic system
- remote information system
- remote semiconcentrating system
- remote sensing system
- remote signaling system
- rendering system
- rerecording system
- reserved servicing system
- RF/Transmission system
- rotary system
- safety alarm system
- safety system
- Satcom system
- satellite comminication system
- satellite marine comminication system
- Satellite Master Antenna Television system
- satellite radio system
- satellite-aircraft communication system
- SB-communication system
- SBL communication system
- scalable system
- scanning trunking system
- SCO UNIX system
- searchless identification system
- seat reservation system
- SECAM system
- second generation cellular system
- second room system
- secondary supply system
- secrecy system
- section communication system
- security system
- segmented system
- seismic system
- selective calling system
- selective frequency base station system
- selective protective system
- selective telephone system
- self-adjusting system
- self-balancing differential system
- self-contained system
- self-test system
- selsyn system
- semiautomatic-switching system
- semiautomatized cellular system
- sensory system
- servo system
- shadow-batch system
- short-haul microwave system
- Sicral system
- Sigma Servo system
- signal system
- simplex movable system
- single-band transmission system
- single-busbar system
- single-cable communication system
- single-cable system
- single-channel system
- single-current transmission system
- single-pulse tracking system
- Skynet system
- small-grained communication system
- SmarTrunk II radio communication system
- solid-state uninterruptible power battery system
- Sony bus system
- sound alarm system
- sound equalization system
- sound navigation system
- sound reinforcement system
- sound warning system
- space-division system
- space-switched system
- spark-safe system
- speaker system
- special communication system
- speech-processing system
- speech-recognition system
- split-speaker system
- spread-spectrum system
- stabilizing system
- stage monitoring system
- standalone double point system
- star-circuit system
- STAREX CMX system
- starting communication system
- start-stop system
- stationary satellite system
- step-by-step system
- stereo sound system
- stereophonic sound system
- storage system
- storage-and-retrieval system
- Strowger system
- submarine fiber-optic system
- subprimary digital transmission system
- subscriber carrier system
- subscriber switching system
- suffix system
- Supersat system
- supervisory control system
- surround sound system
- switched telecommunication system
- switching system
- sync communication system
- synchro system
- synchronous communication system
- synchronous digital system
- TAGS system
- tandem system
- tariffication system
- T-carrier system
- TDF system
- teleautomatic system
- Telecom system
- telecommunication system
- telecommunications system
- telecommunication-service priority system
- telecommunications-service priority system
- telecontrol system
- telemechanic system
- telemetering system
- telemetry system
- telephone system
- telephone-answering system
- telephone-communication system
- telephone-communications system
- teleprocessing system
- Telesat system
- teletex system
- teletypewriter system
- television-telephone system
- Tele-X system
- Telsar system
- terminal system
- terrestrial radio-relay system
- theft-prevention system
- thin-route system
- third generation communication system
- three-axle stabilizing system
- three-channel HF-telephone system
- three-channel transmission system
- three-color system
- three-lens optical system
- three-primary system
- three-wire system
- time-dissemination system
- time-frequency hopping system
- time-switched system
- total access communication system
- total area coverage system
- transmission system
- trichromatic system
- triple-interlace system
- triplex system
- trunk communication system
- TV-observation system
- twelve-channel transmission system
- two-arm system
- two-band system
- two-color system
- two-roller transfer system
- two-step control system
- two-way CATV system
- two-way system
- two-wire telephone communication system
- ultra-match system
- ULTRIX system
- unified radioaccess system
- unilateral-control system
- unilateral-synchronization system
- uninterruptible-power system
- Unisat system
- universal alarm system
- universal-battery system
- universal-electronic system
- universal-movable system
- Uniworks system
- vestigial-sideband system
- video editing system
- video home system
- video recording system
- videocom system
- videoteleconference system
- videotex system
- virtual studio system
- vision system
- vocoder system
- voice dialog system
- voice frequency carrier telegraph system
- voice modulation system
- voice post system
- volume control system
- waiting system
- warning system
- watch system
- watching system
- waterside facsimile communication system
- wave-propagating system
- wide-angle TV system
- Winfax Pro system
- wired broadcasting system
- wireless CCTV system
- wireless home system
- wireless infrared speaker system
- wire-radio communication system
- XY system
- zone-selective protection system
- zoning system

- active network
- adjustment network
- all-pass network
- analog cellular network
- asynchronous network
- automatic secure voice communication network
- automatic voice network
- average-capacity radio-relay network
- backbone network
- banyan network
- baseband network
- baseband-switched network
- baseline network
- branched network
- bridged-T network
- broadband integrated-service digital network
- building-out network
- bus network
- butterfly network
- cable telephone network
- cable-news network
- cable-television network
- carrier recovery network
- CATV network
- cellular paging network
- cellular radio network
- circuit-switched network
- circuit-switching network
- circular radiocommunication network
- closed cellular network
- combined distribution network
- commercial communication network
- common-telegraph network
- common-telephone network
- common-user network
- communication network
- compromise network
- computer network
- computerized transport communication network
- conferencing network
- coordinate network
- copy network
- core network
- corporate network
- corporative network
- corrective network
- coupling network
- cross-connect network
- customer network
- damaged network
- data-communication network
- data-computing network
- data-transmission network
- decoding network
- decoupling network
- deemphasis network
- Deep-Space network
- degraded network
- delay-line network
- democratic network
- democratically-synchronized network
- departmental communication network
- departmental data-transmission network
- departmental engineering communication network
- departmental facsimile network
- departmental radio network
- departmental telegraph network
- departmental telephone network
- derived-services network
- despotic network
- despotically-synchronized network
- dial network
- dial-up network
- differentiating network
- digital cellular network
- discrete communication network
- dispersed network
- district center telephone network
- district telephone network
- dual network
- electric communication networks
- electric switched network
- electrically switched network
- engineering subscribers network
- enhanced other networks
- equivalent network
- expansion network
- facsimile-communication network
- federal paging network
- fiber-hubbed network
- fiber-optical network
- flip network
- four-pole network
- four-wire distribution network
- full-service network
- gas-pipeline servicing relay network
- go-around radio network
- group channels network
- group network
- half-open cellular network
- hierarchic computer network
- hierarchical computer network
- hierarchically-synchronized network
- high-capacity radio relay network
- highly hierarchical network
- highly pipelined network
- H-network
- homogeneous network
- hybrid communication network
- hybrid fiber-and-coaxial network
- inductance network
- inductance-capacitance network
- inductance-resisitance network
- inductive cable network
- information network
- in-house network
- integrated digital communication network
- integrated digital network
- integrated transport network
- integrated-services backbone network
- integrated-services digital network
- intelligent network
- interactive network
- interbuilding network
- intercity network
- intercom network
- international communication network
- interoffice transit network
- interorganization network
- intraairport communication network
- intraareal network
- intrabuilding communication network
- intraindustrial communication network
- intraindustrial telephone network
- intraobject communication network
- intraoffice network
- joint-academic network
- landing radio network
- lead network
- leased-line network
- line communication network
- line radio communication network
- linear network
- line-building-out network
- local communication network
- local paging network
- local telephone network
- local transport network
- long distance communication network
- loop network
- loudspeaker dividing network
- main network
- managed-data network
- mesh network
- message switching network
- meteorological radio network
- metropolitan-area network
- microwave network
- mid-split network
- mine telephone network
- Ministry of Communication network
- mixed network
- modem-based network
- monochannel network
- multiaccess network
- multifrequency network
- multilayer network
- multipath network
- multiple-domain network
- multiple-switching network
- multiring network
- multistation network
- multisystem network
- mutually-synchronized network
- narrowband digital integrated-service network
- nation-wide network
- n-layer network
- NMT network
- nodeless network
- nonhomogeneous network
- nonintegrated network
- nonswitched network
- nonsynchronous network
- oil-pipeline servicing relay network
- oligarchically-synchronized network
- open cellular network
- optoelectronic network
- originating-switching network
- packet wireless communication network
- packet-radio network
- packet-switching network
- parallel-T network
- passenger train-chief radio network
- passenger train-master radio network
- passive network
- personal radio network
- phase-correcting network
- planetext network
- polled network
- port-annunciation network
- preemphasis network
- press-teletype network
- primary-trunk communication network
- private intercompany network
- private voice-band network
- private-business network
- proliferated network
- protected network
- provincial center telephone network
- public-data network
- public-switched telephone network
- public-telegraph network
- public-transport network
- pulse-delay network
- pulse-forming network
- queueing network
- radial paging network
- radio network
- radiotransmitters network
- railway center radio network
- railway communication network
- railway telephone network
- random-access network
- Raynet network
- RC network
- reconfigured network
- regional communication network
- regional paging network
- reserved radio network
- resistance-capacitance network
- ring network
- ring-radial network
- ring-star network
- road communication network
- routing network
- rural telephone network
- salvation radio network
- satellite network
- secondary computerized communication network
- selective network
- separate crossover network
- shaping network
- ship telephone network
- short-haul network
- shuffle-exchange network
- silent network
- simplex zonal radio network
- simulcast network
- single-frequency network
- slotted-envelope network
- slotted-ring network
- small-capacity radio relay network
- software-defined network
- space network
- space-time-space network
- special communication network
- spread of work radio communication network
- stage-controlled network
- star network
- star-shape network
- station communication network
- submarine cable network
- subscriber's telegraph network
- switched-message network
- switching network
- synchronous-data network
- take-off radio network
- talk-TV network
- taxi radio network
- telecode communication network
- telecommunication network
- telecommunication-management network
- telegraph communication network
- telephone network
- teleprocessing network
- teletex network
- teletype network
- teletypewriter network
- television network
- telex-communication network
- temporary line dispatch radio network
- terminating switching network
- token passing network
- token-bus network
- token-ring network
- token-sharing network
- toll-telephone network
- transit network
- transmission network
- trunk telephone network
- trunking channels network
- underground antenna network
- united automatized state communication network
- urban telephone network
- video area network
- virtual network
- voice network
- water-communication network
- waterside communication network
- wire-hanger network
- wireless network
- word processor network

- ASCII format
- audio interchange file format
- B-format
- Beta format
- Betacam format
- Betacam SP format
- Betacam SX format
- Betamax format
- binary format
- bootable CD format
- C-format
- CCTV format
- cell format
- character format
- closed-circuit television format
- CMF format
- comma number format
- Creative music file format
- Creative Labs music file format
- currency number format
- D1 format
- D2 format
- D3 format
- D5 format
- D6 format
- D7 format
- DAT format
- data format - date numeric format
- DCC format
- digital format
- digital audio stationary head format
- Digital Betacam format
- disk record format
- display format
- DLT format
- document format - file format
- fixed number format
- foreign format
- GEM file format
- general format
- global format
- graphic interchange format
- graphics file format
- Hi-8 format
- hidden number format
- high-level format
- High Sierra format
- High Sierra Group format
- HSB format
- HTML format
- IBK format
- input format
- instruction format
- instrument bank file format
- interchange file format
- ISO 9660 format
- JAR file format
- Joliet format
- logical format
- low-level format
- M-II format
- message format
- MIDI format
- modulation format
- NAB format
- NARTB format
- native file format
- numeric format
- office document interchange format
- open document interchange format
- operator format
- percent number format
- physical format
- printer format
- proprietary file format
- Q-format
- quadruplex format
- quadruplex transverse recording format
- range format
- raster image file format
- record format
- register retirement format
- resource interchange file format
- rich text format
- RGB format
- Rock Ridge format
- safe format
- SBI format
- scientific number format
- SMPTE type B-format
- SMPTE type C-format
- sound bluster instrument bank file format
- sound bluster instrument file format
- standard messaging format
- start-stop format
- Super VHS format
- S-VHS format
- tagged image file format
- TAR format
- tape archival and retrieval format
- television format
- text format
- text interchange format
- text numeric format
- text-only format
- TV format
- two-column format
- U-format
- U-format H
- U-format SP
- universal disk format
- VHS format
- VHS-C format
- Video-8 format
- video record format
- Windows metafile format
- word format
- YUV format
- +/- numeric format

- address format
- ASCII format
- audio interchange file format
- B format
- Beta format
- Betacam format
- Betacam SP format
- Betacam SX format
- Betamax format
- binary format
- bootable CD format
- C format
- CCTV format
- cell format
- character format
- closed-circuit television format
- CMF format
- comma number format
- Creative Labs music file format
- Creative music file format
- currency number format
- D1 format
- D2 format
- D3 format
- D5 format
- D6 format
- D7 format
- DAT format
- data format
- data interchange format
- date format
- date numeric format
- DCC format
- digital audio stationary head format
- Digital Betacam format
- digital format
- disk record format
- display format
- DLT format
- document format
- drawing exchange format
- DVC format
- file format
- fixed number format
- foreign format
- GEM file format
- general format
- global format
- graphic interchange format
- graphics file format
- Hi-8 format
- hidden number format
- High Sierra format
- High Sierra Group format
- high-level format
- HSB format
- HTML format
- IBK format
- input format
- instruction format
- instrument bank file format
- interchange file format
- ISO 9660 format
- JAR file format
- Joliet format
- logical format
- low-level format
- M II format
- message format
- MIDI format
- modulation format
- NAB format
- NARTB format
- native file format
- numeric format
- office document interchange format
- open document interchange format
- operator format
- percent number format
- physical format
- printer format
- proprietary file format
- Q format
- quadruplex format
- quadruplex transverse recording format
- range format
- raster image file format
- record format
- register retirement format
- resource interchange file format
- RGB format
- rich text format
- Rock Ridge format
- safe format
- SBI format
- scientific number format
- SMPTE type B format
- SMPTE type C format
- sound bluster instrument bank file format
- sound bluster instrument file format
- standard messaging format
- start-stop format
- Super VHS format
- S-VHS format
- tagged image file format
- tape archival and retrieval format
- TAR format
- television format
- text format
- text interchange format
- text numeric format
- text-only format
- TV format
- two-column format
- U-format H
- U-format SP
- U-format
- universal disk format
- VHS format
- VHS-C format
- video record format
- Video-8 format
- Windows metafile format
- word format
- YUV format

- access-barred signal
- accompanying-sound signal
- acoustic signal
- active line duration signal
- actuating signal
- address-complete signal
- address-incomplete signal
- alarm indication signal
- alarm signal
- alternating mark-inversion signal
- amplitude-modulated signal
- analog electric signal
- analog signal
- ancillary signal
- anisochronous signals
- answer signal
- aperiodic signal
- arrival signal
- audible signal
- authentication signal
- B signal
- background signal
- backward signal
- band-limited signal
- bell signal
- bidirectional signal
- binary signal
- bipolar signal
- black signal
- black-burst signal
- blanketing signal
- blocking acknowledgement signal
- blocking signal
- blue signal
- broadband coding signal
- busy signal
- buzzer signal
- B-Y signal
- call signal
- call-accepted signal
- call-acknowledgement signal
- callback ring signal
- call-confirmation signal
- call-control signal
- called number signals
- called-terminal answered signal
- called-terminal engaged signal
- call-failure signal
- calling indicator signal
- calling signal
- call-not-accepted signal
- call-progress signal
- call-request signal
- call-sending check signal
- camera signal
- carrier chrominance signal
- carrier color signal
- carrier sense signal
- carrier signal
- case-shift signal
- caution signal
- cellular signal
- channel-identification signal
- chirp signal
- chroma signal
- chrominance signal
- chrominance video signal
- circuit group congestion signal
- clear-back signal
- clear-confirmation signal
- clear-forward signal
- clearing signal
- clock signal
- code signal
- color bar signal
- color identification signals
- color signal
- color-difference signal
- color-picture signal
- color-separated signal
- color-sync signal
- common emergency signal
- common-mode signal
- compelled signal
- complete-address signal
- complex TV-signal
- component-coded digital video signal
- composite color sync signal
- composite video signal signal
- compressed-video signal
- conference communication signal
- confirmation-to-receive signal
- confusion signal
- connection-in-progress signal
- continuous time signal
- control track signal
- convergence signal
- cosine signal
- counterphase signal
- crosstalk signal
- cue signal
- danger signal
- data signal
- data-transfer request signal
- dc signal
- DCE clear signal
- DCE waiting signal
- desk-spot signal
- detected signal
- detection signal
- differential signal
- digital component video signal
- digital signal
- directivity signal
- disable signal
- discernible signal
- disconnect signal
- discrete-time signal
- dither signal
- doubleside signal
- driving signal
- DTE-clear signal
- duress signal
- electric signal
- electrooptic signal
- emergency signal
- enable signal
- enciphered signal
- encoded signal
- end-of-copy signal
- end-of-impulsing signal
- end-of-pulsing signal
- end-of-selection signal
- engaged signal
- error signal
- excitation signal
- exponential signal
- facsimile signal
- false signal
- fate signal
- fault signal
- feedback signal
- field sawtooth signal
- field synchronization signal
- figures-shift signal
- finite signal
- first-buzzer signal
- floating signal
- foreground signal
- forward recall signal
- four-aspect signal
- frame sync signal
- frame-alignment signal
- framing signal
- free-line signal
- full-frame test signal
- functional signal
- gate signal
- Gaussian signal
- green signal
- group signal
- G-Y signal
- hang-up signal
- HF signal
- homochronous signal
- horizontal sync signal
- hydroacoustic signals
- idle indication signal
- in-band signal
- information signal
- inhibiting signal
- injection signal
- in-phase signal
- input signal
- interfering signal
- intermediate-frequency signal
- international-code signal
- interoffice signals
- interrupt signal
- inversion signal
- isochronous signals
- jam signal
- left signal
- left-backward signal
- left-forward signal
- line sawtooth signal
- line synchronization signal
- linear signal
- line-drop signal
- line-out-of-service signal
- load-off signal
- local signal
- locking signal
- loop-down signal
- loop-error signal
- loop-up signal
- low-frequency signal
- luminance staircase signal
- M signal
- marking signal
- MAYDAY signal
- mesochronous signal
- microwave signal
- minimum descernible signal
- minimum detectable signal
- modulated signal
- modulating signal
- monitor signal
- monitoring signal
- monochromatic signal
- monophonic signal
- multichannel telephony signal
- multipage signal
- multiplexed signal
- multitone test signal
- music melody signal
- narrowband return signal
- n-level output signal
- noise-free signal
- noise-shaped signal
- noncompelled signal
- noncomposite color picture signal
- note-off signal
- note-on signal
- n-position signal
- number received signal
- offering signal
- off-hook signal
- on-hook signal
- optical signal
- optimal amplitude signal
- orthogonal signal
- out-of-band signal
- output signal
- PAN-signal
- periodic signal
- permanent signal
- phantom signal
- phasing signal
- pickup signal
- picture signal
- picture-phone signal
- picture-shading signal
- pilot signal
- playback signal
- plesiochronous signal
- polar signal
- polling signal
- power signal
- pre-video signal
- primary signal
- probing signal
- proceed-to-select signal
- proceed-to-transmit signal
- program signal
- protection signal
- pseudonoise signal
- pulse control signal
- pulse signal
- pulsed signal
- Q-signal
- quadrature-phase subcarrier signal
- quantized signal
- quasi-harmonic signal
- radio-frequency signal
- radioimpulse signal
- radio-time signals
- reading signal
- ready-for-data signal
- ready-to-receive signal
- recall signal
- receiving acknowledgement signal
- rectangular signal
- RED signal
- red signal
- RED/BLACK signal
- redundant signal
- reference signal
- regenerated signal
- regular signal
- reorder signal
- request signal
- request-for-repetition signal
- re-reflected signal
- rering signal
- reset signal
- residual signal
- retransmitted signal
- return signal
- returned signal
- rewrite signal
- rewriting signal
- right signal
- right-backward signal
- right-forward signal
- ringing signal
- ring-off signal
- round-the-world signal
- runout signal
- safety signal
- sampled signal
- saturation signal
- saw-toothed signal
- second buzzer signal
- secondary signal
- security signal
- seizing signal
- sending acknowledgement signal
- sensed signal
- service signal
- shading compensation signal
- shading signal
- silhouette signal
- simplest sync signal
- sin signal
- single-ended signal
- single-sideband signal
- smear signal
- SOS-signal
- sound signal
- space signal
- speech signal
- spurious signal
- start dialing signal
- start signal
- start-record signal
- start-stop signal
- station answer signal
- stereophonic signal
- stop signal
- stop-record signal
- stuffed signal
- supersync signal
- supervisory signal
- suppressed sideband signal
- switch signal
- switchover signal
- synchronous signal
- synphase signal
- system busy signal
- teledata signal
- telegraph-control signal
- telephone-control signal
- ternary signal
- testing signal
- test-line signal
- test-pattern signal
- threshold signal
- ticker signal
- time signals
- timing reference signal
- total television signal
- transmission confirming signal
- triangular signal
- triggering signal
- tristimulus signal
- TV-control signal
- TV-transmission signal
- undesired signal
- unstuffed signal
- unvoiced signal
- urgent signal
- vertical synchronization signal
- vestigial sideband signal
- videoimpulse signal
- visual message signal
- voice analog signal
- voice answer signal
- wanted signal
- warning signal
- weighted signal
- white signal
- write signal
- writing signal
- Y-signal

- absolutely consistent system - absolutely direct indecomposable system - absolutely free system - absolutely irreducible system - absolutely isolated system - allowable coordinate system - almost linear system - ample linear system - artificial feel system - automatic block system - automatic deicing system - binary relational system - binary-coded decimal system - block tooling system - Cartesian coordinate system - completely controllable system - completely ergodic system - completely hyperbolic system - completely identifiable system - completely integrable system - completely irreducible system - completely regular system - completely stable system - completely stratified system - complex number system - conical coordinate system - derivational formal system - differential equation system - differential selsyn system - digital counting system - digital transmission system - elliptic coordinate system - elliptic cylindrical coordinate system - externally inconsistent system - finite state system - finitely axiomatizable system - finitely presented system - fully characteristic quotient system - fundamental system of solutions - hydraulic lift system - integrated switching system - isomorphically embedded system - kernel normal system - linearly dependent system - linearly independent system - live hydraulic system - locking protection system - meteor-burst communication system - modular programming system - parabolic cylindrical coordinate system - permanent four-wheel drive system - pure independent system - radio telephone system - reactor protection system - real number system - receiver-amplifier crioelectric system - remote-cylinder hydraulic system - semantically consistent system - simply consistent system - simply incomplete system - simply ordered system - spherical coordinate system - strongly multiplicative system - structurally stable system - sufficiently general coordinate system - system of frequency curves - system of rational numbers - time multiplex system - time-division multiplex system - uniformly complete system - univalent system of notation - universal system of notation - weakly closed system - weighted number system