UNESCO Thesaurus: hierarchical list

5.45 Information technology (hardware)

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Broadcasting equipment

Narrower Term

NT1 TV/radio equipment

UF Radio receivers, Radio transmitters, Television cameras, Television receivers, Television transmitters

NT2 Antennas

Communication equipment

Narrower Term

NT1 Recording equipment

UF Tape recorders, Video recorders

Computer systems

Narrower Term

NT1 Computer networks

UF Computer communications, Data networks, Electronic networking, Internet, LANs, Local area networks, WANs, Wide area networks

NT2 Computer interfaces

UF Computer links

Computers

Used For

UF Calculating machines, Computer hardware

Narrower Term

NT1 Analogue computers

NT1 Computer peripheral equipment

UF Input output media

NT2 Computer output microforms

UF COM

NT2 Computer printers

NT1 Computer storage devices

UF Computer memories, Storage devices

NT2 Magnetic discs

UF Diskettes, Floppy disks

NT2 Magnetic tapes

UF Cassettes (computer), DAT

NT2 Optical discs

UF CD-ROM, Digital optical disks

NT1 Computer terminals

UF Keyboards, Screens (computer)

NT1 Digital computers

NT1 Microcomputers

UF Personal computers

NT1 Minicomputers

Electronic equipment

Narrower Term

NT1 Electronic circuits

UF Circuits, Computer circuits, Digital circuits, Logic and switching circuits

NT2 Integrated circuits

NT1 Lasers

NT1 Microprocessors

UF Chip

NT1 Semiconductors

NT2 Transistors

Office equipment

Used For

UF Office machines, Photocopying equipment

Photographic equipment

Narrower Term

NT1 Film cameras

NT1 Microform equipment

UF Microfilm cameras, Microfilm readers

NT1 Projectors

Printing equipment

Used For

UF Printing machines

Telecommunications equipment

Used For

UF Data communication equipment, Modems

Narrower Term

NT1 Fax

UF Facsimile transmitters

NT1 Telephone

UF Videotelephone

NT1 Telex

UF Telegraph

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