The Torch Graduate is a second processor designed to be attached to the BBC Micro. Unlike most second processors, the Torch Graduate connects via the 1MHz bus instead of the Tube port. The Graduate has an 8088 processor and runs a version of MS-DOS 2.11. At boot time it copies 6502 code into the BBC Micro's address space and effectively takes control of it - the result is that the BBC Micro serves as an input/output terminal for the Torch processor. The Graduate has two 360KB 5.25" floppy disk drives and can have two full-length 8-bit ISA cards installed.
More information, including internal pictures, is available here.
Manufacturer: Torch Computers PLC
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