Cambridge Systems Technology

Cambridge Systems Technology (CST) was a company formed in the early 1980s by ex-Torch Computers engineers David Oliver and Martin Baines, to produce peripherals for the BBC Micro, and later, with Graham Priestley, Sinclair QL microcomputers.^[1][2] Products included IEEE 488, floppy disk and SCSI interfaces.^[2][3]

CST floppy disk interface and Expanderam for Sinclair QL

Cambridge Systems Technology

Company type	Limited company
Industry	Computing Electronics
Founded	early 1980s
Founder	David Oliver, Martin Baines
Defunct	late 1980s
Products	IEEE 488, floppy disk and SCSI interfaces; CST Thor computers

Following the demise of the Sinclair QL in 1986, CST began producing the Thor series of QL-compatible personal computers.^[2] These had limited commercial success, and CST had ceased trading by the end of the decade.