An ancient build of Linux for Acorn PC cards has been uploaded to riscos.info as part of a new drive to revive the PC Card Linux project. A zipfile dating back to 1994, which contains Linux 1.1.29 and suitable drivers for pre-RiscPC machines fitted with PC cards, has been recovered, dusted off, and published online.Apparently, Mark Brinicombe originally ported Linux to Acorn's range of PC cards, but he has since disappeared along with the FTP sites hosting his work. The recovered files were republished under the GPL earlier this month, and anyone else with files relating to PC card Linux should contact riscos.info's Peter Naulls.
During the 1990s, Acorn and Aleph1 produced a range of PC cards for RiscPC and pre-RiscPC machines, which featured Intel 486-compatible processors. This allowed RISC OS users to run Windows and PC applications from their otherwise ARM-powered desktop machines.
Links
PC card Linux webpage
What's a PC second processor card?