Technical information on the Master 128 including the memory map, sideways ROMs, private RAM, registers, CMOS RAM allocations, and keyboard table.

Photograph and technical details.

Photograph of the PCB, along with technical specification.

Details year 2000 bug fixes for the BBC Master.

Description of a ROM based fix for the year 2000 problem suffered by the BBC microcomputer series

Information about replacing the battery pack and restoring the Master 128's configuration settings.