BMB Compuscience Soft ROM

  • The Soft ROM from BMB Compuscience is a daughterboard that plugs into the option ROM sockets on a PET/CBM machine (UD11 or UD12 on an 8032). It provides 4K of RAM, allowing code for the option ROM area to be loaded from disk. It also has a socket for a 2516 or 2716 EPROM.

    Resources

    SoftROM Connections – Drawn by Steve J. Gray
    SoftROM Switch (TORPET magazine, April 1982) – Article describing a modification to allow one SoftROM to be switched between $9000 and $A000.