UK Videotex

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prestel popular time, never gained anywhere near popularity of ceefax. may have been due relatively low penetration of suitable hardware in british homes, requiring user pay terminal (today referred set-top box), monthly charge service, , phone bills on top of (unlike us, local calls paid in of europe @ time). in late 1980s system re-focused provider of financial data, , bought out financial times in 1994. continues today in name only, ft s information service. closed access videotex system based on prestel model developed travel industry, , continues universally used travel agents throughout country.


using prototype domestic television equipped prestel chip set, michael aldrich of redifon computers ltd demonstrated real-time transaction processing in 1979 or online shopping called. 1980 onwards designed, sold , installed systems major uk companies including world s first travel industry system,the world s first vehicle locator system 1 of world s largest auto manufacturers , world s first supermarket system. wrote book ideas , systems among other topics explored future of teleshopping , teleworking has proven prophetic. before ibm pc, microsoft ms-dos , internet or world wide web, invented , manufactured , sold teleputer , pc communicated using prestel chip set.


the teleputer range of computers suffixed number. teleputer 1 , teleputer 3 manufactured , sold. teleputer 1 simple device , worked teletex terminal, whereas teleputer 3 z80 based micro computer. ran pair of single sided 5¼ inch floppy disk drive; 20mb hard disk drive version available towards end of product s life. operating system cp/m or proprietary variant cp*, , unit supplied suite of applications, consisting of word processor, spreadsheet, database , semi-compiled basic programming language. display supplied unit (both teleputer 1 , 3) modified rediffusion 14 inch portable colour television, tuner circuitry removed , being driven rgb input. unit had 64kb onboard memory expanded 128kb plug in card. graphics standard videotext (or teletext) resolution , colour, high resolution graphic card available. 75/1200 baud modem fitted standard (could run @ 300/300 , 1200/1200), , connected telephone via old style round telephone connector. in addition ieee interface card fitted. on of unit there rs232 , centronic connections , on front connector keyboard.


the proposed teleputer 4 & 5 planned have laser disk attached , allow units control video output on separate screen.








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