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.

ALU Design: 1-bit Logic Unit

This post covers the design of a 1-bit Logic Unit that can produce AND, OR, XOR, NOT and SHL (Shift Left) outputs from two input...

11 Nov 2013   —  5 minute read

Relay Rumination

If there’s one thing a relay computer needs a lot of it’s … erm … relays (of course) … which happens to be a bit...

10 Nov 2013   —  5 minute read

Instruction Set

In the last post I promised to reveal the planned instruction set for the computer and here it is (pdf file). This should be viewed...

07 Nov 2013   —  1 minute read

Architectural breakdown: the ALU

In this post I’ll continue to try and explain away the various bits of the architecture that will make up my relay computer project —...

07 Nov 2013   —  4 minute read

Architectural breakdown: Memory

In this post I’ll continue to try and explain away the various bits of the architecture that will make up my relay computer project —...

06 Nov 2013   —  4 minute read