computer A family of microcomputers produced by AcornComputers, Cambridge, UK. The Archimedes, launched in June

1987, was the first RISC based personal computer

(predating Apple Computer's Power Mac by some seven

years). It uses the Advanced RISC Machine (ARM) processor

and includes Acorn's multitasking operating system and

graphical user interface, RISC OS on ROM, along with an

interpreter for Acorn's enhanced BASIC, BASIC V.