My relay computer is made up of several independent cards with each performing a specific function. This approach makes designing, constructing and testing each part of my computer much easier and means I can build it over time testing as I go.
Each card is based on a 160mm x 115mm PCB and either sits in one of 4 bays in the computer enclosure (bays W, X, Y and Z) or within the upper enclosure.
Below is a list of the cards making up my relay computer and each links to a list of blog articles relating to that card.