01 Dec 2025 - 5 min read
Talk about raking over old coals! Well, for those of you who follow my YouTube channel this’ll mostly be old news but here I am, six months after the event, finally updating …
06 Oct 2019 - 5 min read
In my last post I covered the design for the GOTO opcode which will enable my relay computer to perform branching, loops and so on. Here’s where I got to last time: …
23 Sep 2019 - 7 min read
There’s been a common theme recently in the comments on my YouTube videos … people are ready to see my relay computer gain the power of branching and become a …
19 Sep 2014 - 12 min read
Sequencing & Control Design: Overview
I’ve now got my computer to a state where I can perform ALU operations and push values around the four registers by manually operating the various control lines. …
07 Nov 2013 - 4 min read
Architectural breakdown: Programming and Control 2
So, the last post didn’t quite wrap up this ‘mini-series’ but hopefully this one will. Continuing on with how the Programming and Control of the computer …
07 Nov 2013 - 8 min read
Architectural breakdown: Programming and Control
In this post I’ll wrap up this ‘mini-series’ of trying to explain away the various bits of the architecture that will make up my relay computer project — …
07 Nov 2013 - 4 min 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 — this time it’s the Arithmetic …
06 Nov 2013 - 5 min 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 — this time it’s the memory. …
05 Nov 2013 - 4 min read
Architectural breakdown: Buses and Registers
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 — this time it’s buses and …
04 Nov 2013 - 7 min read
Architectural breakdown: Binary
… and it all begins with binary. Binary is a ‘base 2’ numbering system which means it uses the numbers 0 and 1. In contrast humans tend to use decimal (base …