The Risc PC (codenamed Medusa) was Acorn Computer's next generation RISC OS/Acorn RISC Machine computer, launched in April 1994, which superseded the Acorn Archimedes.
Like the Archimedes, the Risc PC continued the practice of having the RISC OS operating system in a ROM module. Risc PC augmented the ROM-based core OS with a disk-based directory structure containing configuration information, and some applications which had previously been kept in ROM.
In July 1995, with the launch of the Risc PC 700 , the Risc PC 600 was upgraded to use a 33MHz ARM610 CPU, 16bit sound and RISC OS 3.60. This machine is an ACB60 - Acorn Risc PC600, 0/4/425Mb, 33MHz ARM610, Risc OS 3.6, Single Slice
Further information is available at http://acorn.chriswhy.co.uk/Computers/RiscPC600.html
We are extremely grateful to Robert J Davis for donating this machine which is in excellent condition