Changes
'''Amstrad Expansion System''' aka '''Maplin ROM Card'''
* MAPLIN PROJECTS BOOK 18 - Amstrad Expansion System Part 1: an external ROM card system for the Amstrad
* MAPLIN PROJECTS BOOK 19 - Amstrad Expansion System Part 2: describes the 6 x 8-bit parallel I/O Port and PSU Card
* MAPLIN PROJECTS BOOK 20 - Amstrad 8 Bit Input Port
== Pictures ==
