Page "International Computers Limited" Paragraph 23

Now with serious financial backing at its disposal, the new company nevertheless decided not to come up with its own design, and instead licensed the RCA Spectra 70 ( the design ICT rejected ).

The result was the System 4 series.

While there were a number of models in the range, the smaller 4 / 10 and 4 / 30 were seen as underpowered, and the more successful variants were the larger 4 / 50 and 4 / 70 models.

A model 4 / 75 was also supplied to the EELM ( later Baric ) Bureau subsidiary and installed at Winsford, Cheshire as the hardware for a bureau-developed commercial system for interactive use by bureau customers.

Although several multi-user commercial packages ( e. g. sales and purchase ledger systems ) were developed and trialled with customers, this was not commercially successful, and the service was soon withdrawn.