Teletext Ltd. on 31 January 2011, with editorial content from the Radio Times instead of Teletext Ltd. In spite of its name, the ""Teletext""-branded service was neither the first nor the only teletext service in the UK. The BBC (one of the original developers of teletext) launched its Ceefax teletext service in 1974, the same year that "Teletext's" predecessor, ORACLE also appeared. Although ORACLE closed at the end of 1992 (when Teletext Ltd outbid it for the franchise), Ceefax continued to run on BBC analogue channels until the cessation of analogue signals in October 2012. FourText, originally called 4-Tel, was first run
Network Information Service some functionssuch as the distribution of netmask information to clients, as well as the maintenance of e-mail aliasesmay still be performed by NIS or LDAP. NIS maintains an NFS database information file as well as so called maps. Network Information Service The Network Information Service, or NIS (originally called Yellow Pages or YP), is a client–server directory service protocol for distributing system configuration data such as user and host names between computers on a computer network. Sun Microsystems developed the NIS; the technology is licensed to virtually all other Unix vendors. Because British Telecom PLC owned the name "Yellow Pages"