teletext

As nouns the difference between telefax and teletext

is that telefax is while teletext is teletext.

As a verb telefax

is to transmit by telefacsimile.

As nouns the difference between teletext and fax

is that teletext is a text-based information retrieval system using television sets with a suitable decoder; developed by the BBC while fax is the hair of the head.

As a verb fax is

to send a document via a fax machine.

Teletext is a synonym of videotext.

As nouns the difference between videotext and teletext

is that videotext is alternative form of lang=en while Teletext is a text-based information retrieval system using television sets with a suitable decoder; developed by the BBC.

As nouns the difference between teletext and videotex

is that teletext is teletext while videotex is teletext.

As nouns the difference between teletext and telesoftware

is that teletext is teletext while telesoftware is (computing|dated) the broadcasting of software for home computers via teletext, viewdata systems, etc.