Teletext default graphics mode (mode 7) was based on Teletext display, and the computer could be used to create and serve Teletext-style pages over a modem connection. With a suitable adapter, the computer could receive and display teletext pages, as well as software over the BBC's Ceefax service, for a time. The Philips P2000 home computer's video logic was also based on a chip designed to provide teletext services in TVs. Prestel was a British information-retrieval system based on teletext protocols. However, it was essentially a different system, using a modem and the phone system to transmit and receive the data,
ORACLE (teletext) By the mid-2000s, however, all of the Jobfinder services had ended. For a short period in 1987, prior to the start of 24-hour broadcasting on ITV, a selection of teletext pages were broadcast in-vision prior to the start of TV-am. These pages mostly consisted of news and information about TV-am. ORACLE began to disappear at 23:31:09 on 31 December 1992, with the outer border of pixels turning black. This process continued until 23:55:55 when only a white square was left, with the text ORACLE gone 1978-1992. It was then replaced by the service from Teletext Ltd. ORACLE did not carry