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MicroMac, a Macintosh for under £5 A microcontroller Macintosh This all started from a conversation about the RP2040 MCU, and building...
15th Jun 2024
36

MicroMac, a Macintosh for under £5

from axio.ms [alt+shift+b] in technology

15th Jun 2024
A microcontroller Macintosh This all started from a conversation about the RP2040 MCU, and building a simple desktop/GUI for it. I’d made a comment along the lines of “or, just run some old OS”, and it got me thinking about the original Macintosh. The original Macintosh was...
Classical virtualisation rules applied to RISC-style atomics In 1974, Gerald Popek and Robert Goldberg published a paper, “Formal Requirements for Virtualizable...
15th May 2022
34

Classical virtualisation rules applied to RISC-style atomics

from axio.ms [alt+shift+b] in technology

15th May 2022
In 1974, Gerald Popek and Robert Goldberg published a paper, “Formal Requirements for Virtualizable Third Generation Architectures”, giving a set of characteristics for correct full-machine virtualisation. Today, these characteristics remain very useful. Computer architects will...
A small ode to the CRT Built October 2018 I used to hate Cathode Ray Tubes. As a kid in Europe, everything flickered at...
8th Feb 2022
34

A small ode to the CRT

from axio.ms [alt+shift+b] in technology

8th Feb 2022
Built October 2018 I used to hate Cathode Ray Tubes. As a kid in Europe, everything flickered at 50Hz, or made a loud whistle at 15.625KHz (back when I could still hear it). CRTs just seemed crude, “electro-brutalist” contraptions from the valve era. They were heavy, and...
Mac SE/30 odyssey I’ve always wanted an Apple Macintosh SE/30. Released in 1989, they look quite a lot like the other...
1st Oct 2021
56

Mac SE/30 odyssey

from axio.ms [alt+shift+b] in technology

1st Oct 2021
I’ve always wanted an Apple Macintosh SE/30. Released in 1989, they look quite a lot like the other members of the original “compact Mac” series, but pack in a ton of interesting features that the other compact Macs don’t have. This is the story of my journey to getting to the...
32-bit hat, with LEDs Built in November 2015 (now-traditional multi-year writeup delay applied) A hat,...
14th Sep 2021
36

32-bit hat, with LEDs

from axio.ms [alt+shift+b] in technology

14th Sep 2021
Built in November 2015 (now-traditional multi-year writeup delay applied) A hat, bejewelled with 38 RGB LEDs Is this thing on..? It’s been a while since I’ve written one of these. So, the hat. It’s been on the writeup pile for almost 6 years, nagging away. Finally...
Pickle plus mains Back in February 2014, it was a cold (but dry) winter’s night and we decided to warm our hearts with...
17th Mar 2018
25

Pickle plus mains

from axio.ms [alt+shift+b] in technology

17th Mar 2018
Back in February 2014, it was a cold (but dry) winter’s night and we decided to warm our hearts with some science. Our experiment was to observe the conduction of electricity through a pickle, using salt ions. We connected a pickle to the mains supply. Pickles have a strong...
Maths is Fun and Useful but Lasers Are More So Way back when, I made a cool but basic paper sculpture (in Maths is Fun and Useful) by hand, using a...
11th Aug 2017
26

Maths is Fun and Useful but Lasers Are More So

from axio.ms [alt+shift+b] in technology

11th Aug 2017
Way back when, I made a cool but basic paper sculpture (in Maths is Fun and Useful) by hand, using a perl script for the shape template. For cultural reasons, I wanted to make a gift out of paper and it had to be Heaps Good. I had finally got access to a laser cutter (omgomg)...
Internet of kitchen lighting, with OSC This project was completed in June 2015. Wow, is it 2017 already? In this post, I’d like to say...
3rd Jan 2017
26

Internet of kitchen lighting, with OSC

from axio.ms [alt+shift+b] in technology

3rd Jan 2017
This project was completed in June 2015. Wow, is it 2017 already? In this post, I’d like to say that I wrote a useful little bit of software and built up a crappy hack to demonstrate it but, secretly, the crappy hack came first and I’ve retroactively found something vaguely...
Axio.ms site refresh This is the obligatory “first post on new platform” post, coupled with a bit of “first post in 4...
28th May 2016
23

Axio.ms site refresh

from axio.ms [alt+shift+b] in technology

28th May 2016
This is the obligatory “first post on new platform” post, coupled with a bit of “first post in 4 years, I’m still alive”. The original axio.ms site was a very HTML1.0 affair and while this was kind of intentional-tongue-in-cheek-chic, it was also a PITA to update. It wasn’t...
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