qlwiki:rebel_hard_disk [Sinclair QL Wiki]

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 ====== Rebel Hard Disk ======
**Rebel RB1000**


A Winchester hard disk controller for the QL, from Rebel Electronics Ltd of Leeds, England, produced in 1989.


The RB1000 interface used a Western Digital chipset. It was a standard ST506/ST412 drive interface. It had an 32K sector buffer. It could control up to 2 hard disk drives and plugged into the QL expansion port or backplane such as the [[qlwiki:Rebel backplane]].


The hard disk interface cost £195 while a complete system (the RB2000) comprising the controller interface, 20MB drive and power supply cost £399, with a 30MB and 40MB hard disk available as an option.


The first versions of this harddisk uses software, which uses some kind of commands known by DOS users: "MD" for Make Directory, "CD" for Change Directory. We still have to examine the software (Missing In Action).