qlwiki:cst [Sinclair QL Wiki]

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 ====== CST ======
CST (Cambridge Systems Technology) were one of the early hardware designers for the QL, and used many of the QL standards developed by [[qlwiki:Tony Tebby]].


They produced a wide range of hardware, including:


[[qlwiki:CST Expander]] \\ 
[[qlwiki:CST RAMPlus]]-  RAM expansion with through port\\ 
[[qlwiki:CST Q488]] - interface to connect a Sinclair QL to the IEEE 488 Instrument Bus\\ 
[[qlwiki:CST QDisk Interface]] - Standard disk interface\\ 
[[qlwiki:CST Q4 Interface]] - a device to allow you to connect 4 different interfaces to the QL at the same time\\ 
[[qlwiki:CST QPI Printer Module]] - a parallel port interface\\ 
[[qlwiki:CST SCSI Interface]] - an interface to connect SCSI devices to the Sinclair QL\\ 
[[qlwiki:CST Thor]] - a replacement for the Sinclair QL computer\\ 
[[qlwiki:CST Winchesters]] - Hard drives\\ 


In November 1985, CST also announced that they would offer their own [[qlwiki:internal 512K memory upgrade]]s at a cost of £172.50, with a 90 day warranty, to cover the microdrive units.