ICL (International Computers Limited) existed as a commercial entity and brand from 1968 to 2002; perhaps the flagship computer manufacturer of the UK until it was finally and completely absorbed into its eventual, Japanese owner Fujitsu.  The story of ICL illustrates many of the challenges in the UK computer industry over that time, political, technological and commercial.  Its roots go back to the days of immediate post-war development of British computer technology as diverse firms came together or were brought together in an industrial critical mass, firstly seeking commercially viable products and then attempting to compete on an international scale alongside IBM and others. Its history charts a key period of the development of IT as a tool for automating government and commerce, in between the pioneering phase and IT as a ubiquitous, societal phenomenon.