4 of 10Image
ICL started off as an initiative of the Wilson government — specifically technology minister Tony Benn — to create a strong British rival to the likes of IBM. Formed from various smaller companies in 1968, it began life with two mainframe product lines: the IBM System/360-compatible System 4 and the ICT 1900 series, which was not compatible with any other company's products.
ICL launched a new line, the 2900 Series, in 1974. Running the Virtual Machine Environment (VME) operating system, these machines were able to emulate both of their predecessors. The ICL Series 39 range of mainframes and minicomputers, introduced in 1985, included major hardware advances such as the use of optical fibres for central interconnect.
In 1984, ICL was taken over by Standard Telephones and Cables (STC) in a move that foresaw the convergence of computers and telecoms. Subsequent acquisitions included that of Nokia Data in 1991, taking ICL into the PC and desktop software markets.
However, ICL's long-standing partnership with Fujitsu became more permanent around that time, with the Japanese company buying up 80 percent of ICL in 1990. When Fujitsu Siemens was formed in 1999, the ICL brand was finally dropped from its PC and server lines.
Photo credit: HendrikHAM