RiscPC <computer> The final addition to {Acorn}'s {Archimedes} family of {personal computers}, released in April 1994. The RiscPC allowed a second processor, e.g. an {Intel 486} or a second {ARM}, to share the {bus}, memory and {peripherals} with the main processor. It also had full 24-bit colour graphics support. The Risc PC 600 (the first to be launched) had the new {ARM600} processor and {RISC OS} 3.5. The RiscPC 700 had an {ARM710} processor and RISC OS 3.6, and the SA had the {StrongARM} processor and RISC OS 3.7. {Castle Technology Ltd} later introduced the {IYONIX pc} with the 32-bit {X-Scale} processor and {USB} sockets. USB and StrongArm can also be retrofitted to earlier RiscPCs. RiscPCs are among the most energy efficient home computers. Acorn Computer Museum (http://pages.zoom.co.uk/acorn.computer/riscpc.html). (2004-09-21)