This is my blog covering the design and construction of a computer made from relays. If you're new here then a good place to start is the overview page.
The summaries also give more detail on the various aspects of the computer: ALU, Assembly, Control, Enclosure, Instructions, Registers & UI
To see how far I've got check out the Progress page.
Latest Post - 05 Dec 2022 - 8 min read
Controller Design: MOV8, MOV16 & MISC Instructions
Way back in 2019 I discussed how you can’t ‘half design a PCB’ and that, as a result, my controller cards already have all the required functionality laid down … I just haven’t explained how those ‘missing’ …
27 Nov 2022 - 10 min read
Assembling an assembler - token scanning
In the last episode of this mini-series I explained about how an assembler’s job is effectively to convert a program written in a language a human programmer can …
20 Nov 2022 - 4 min read
Well, what a journey that’s been then … I started work on a clock for my relay computer back in May 2020 and today (20th Nov 2022) this post marks the end of it. …
05 Nov 2022 - 3 min read
Quite a while ago I decided to give up on the tedious wire wrap technique for building my cards. Although it was certainly more authentic and in-keeping with my …
14 May 2022 - 9 min read
Assembling an assembler - overview
To make my relay computer do something interesting (or anything at all) it needs a list of instructions held in memory. Each instruction consists of an 8-bit value called an …
02 May 2022 - 4 min read
So, is fair to say that things have been a bit quiet around here of late … and if you’ve been following my YouTube channel I do hope you haven’t been holding your breath for …
You can also find more information at these sites ...
... and you can program and play with a simulation of my relay computer here ...
