Acorn System

The Eurocard business was then sold on to one of its principal resellers, Control Universal Ltd, which continued to develop various cards for industrial use based on the Acorn-standard bus during the 1980s, but ultimately went into receivership in 1989.

Placing the two Eurocards from the original Acorn Microcomputer onto a backplane made the system straightforward to expand in a modular way.

It was a small machine built on two Eurocard-standard circuit boards and it could be purchased ready-built or in kit form.

The system comprised four Eurocard-sized printed circuit boards mounted in a 19 inch sub-rack frame on an 8-slot backplane, plus a (separately supplied) additional external keyboard.

A minimum configuration contained: In 1982 this was being offered for £775, or £1075 with power supply, casing, and two further 8K RAM cards; plus, again, an additional £136 for a keyboard.

Acorn System 3 computer equipped with (from left) a 6502 CPU card, a 40-column VDU card, three memory cards, an Econet card, and a floppy disc drive.