Relay Computer

My journey in constructing an 8 bit relay computer from scratch ... made from of a ton of solder, wires, lights, relays, sweat, tears, swearing and money.

Memory Test

I’ve covered the construction of the upper and lower memory cards in my last two posts … it’s now time to bring those two cards...

30 Nov 2017   —  2 minute read

Memory Construction (Part 2 of 2)

In my last post I made a start on the memory unit construction with the lower memory card. The lower card centres around the memory...

25 Nov 2017   —  5 minute read

Program Counter Construction

In my last couple of posts I’ve been slightly distracted by some ‘miscellany’ but now I return to form and crack on with constructing the...

11 Nov 2017   —  3 minute read

Control Design: Fetch and Increment

The design of the computer’s memory, incrementer and program counter are now complete but there’s one last piece of the ‘puzzle’ required to get the...

17 Sep 2017   —  5 minute read

Memory Design (Part 2 of 2)

In my last post I started the design for the computer’s memory unit which is spread over two cards. With the lower memory card design...

06 Sep 2017   —  5 minute read