Teletext systems network in the mid-late 1970s. Due to the adoption of a common teletext standard (WST), the ORACLE system ceased in 1976. The name was retained for the service itself, that continued after that year using the WST standard. "World System Teletext" (or "WST") is the name of a standard for teletext throughout Europe today. Almost all television sets sold in Europe since the early ’80s have built-in WST-standard teletext decoders as a feature. It originally stems from the UK standards developed by the BBC (Ceefax) and the UK Independent Broadcasting Authority (ORACLE) in 1974 for teletext transmission, extended in 1976
Teletext hardware that could download pages of up-to-date news, reports, facts and figures targeting U.K. agriculture. The original idea was the brainchild of Philips (CAL) Laboratories in 1970. In 1971, CAL engineer John Adams created a design and proposal for UK broadcasters. His configuration contained all the fundamental elements of classic Teletext including pages of 24 rows with 40 characters each, page selection, sub pages of information and vertical blanking interval data transmission. A major objective for Adams during the concept development stage was to make Teletext affordable to the home user. In reality, there was no scope to make an