He spent two years with Plessey Telecommunications Ltd (Poole, Dorset, UK) a major UK Telecom equipment manufacturer, working on distributed transaction systems, message relays, and bar code technology.
In 1978 Tim left Plessey to join D.G Nash Ltd (Ferndown, Dorset, UK), where he wrote among other things typesetting software for intelligent printers, and a multitasking operating system.
A year and a half spent as an independent consultant included a six month stint (Jun-Dec 1980)as consultant software engineer at CERN, the European Particle Physics Laboratory in Geneva, Switzerland. Whilst there, he wrote for his own private use his first program for storing information including using random associations. Named "Enquire", and never published, this program formed the conceptual basis for the future development of the World Wide Web.
From 1981 until 1984, Tim worked at John Poole's Image Computer Systems Ltd, with technical design responsibility. Work here included real time control firmware, graphics and communications software, and a generic macro language. In 1984, he took up a fellowship at CERN, to work on distributed real-time systems for scientific data acquisition and system control. Among other things, he worked on FASTBUS system software and designed a heterogeneous remote procedure call system.
In 1989, he proposed a global hypertext project, to be known as the World Wide Web. Based on the earlier "Enquire" work, it was designed to allow people to work together by combining their knowledge in a web of hypertext documents. He wrote the first World Wide Web server, "httpd", and the first client, "WorldWideWeb" a what-you-see-is-what-you-get hypertext browser/editor which ran in the NeXTStep environment. This work was started in October