====== Technology Research Limited ====== Technology Research Limited were a company based in Staines, Middlesex. The Company appear to have been dissolved in 1990. They produced a range of 3 in 1 disk interfaces for the Sinclair QL, offering a centronics interface, double density floppy disk interface and extra RAM (with a RAM disk) built into one unit, the [[qlwiki:Delta 64 and 128]].