ICL DRS POWERBUILD Concurrent Dos and UNIX Machines.

The first release of the ICL DRS POWERBUILD came in 1985. (A1 Processor Unit)

80186 Processor used in this unit.

This was renamed later during 1985 to the ICL DRS300. (A2 or A3 Processor Units)

80286 Processor used in the A2 unit. 80286/80287 Processors used in the A3 unit.

These were followed by A4 and A5 units, these had 80386 and 80386/80287 Processors.

ICL DRS300 Concurrent Dos Machine

ICL DRS300 Unix Machine (Kindly donated by Ian McIlhiney)

ICL DRS300 Concurrent CP/M Machine (Basic Later Type)