The Maclock hack I linked to many months ago is now a finished product (with various flavours of kit), which is kind of fun to see. I have managed to procrastinate assembling mine for a stupefying…

There are really only three contenders for the most popular spreadsheet software: VisiCalc, the first computer spreadsheet and a system-seller for some home computers in the late 1970s, Lotus 1-2-3…

Recently, El Explorador de RPG covered the Italian RPG Avventura 1, which drew my attention to two Italian games in my domain: Avventura 2 (a…

Writing software for a 30+ year old platform that nobody uses... Welcome to MCVT - a VT100 terminal emulator for the Psion MC400

KEYBOARDS STILL AVAILABLE – NEW PRICE! After a few years away from the Commodore 64 hobby, I am now slowly getting back into it again (link). As part of this, I have parts for a very limited…

alammo has been around for a while on youtube, posting pc-98 mixes with some very interesting and obscure picks (i recommend!). recently, they created this quirky website where you can browse various…

You can download MacBeeb from GitHub, where the source is too. MacBeeb is a BBC Micro emulator written for the Mac in Swift. I’ve spent a lot of time in the BBC Micro’s internals through…

Now that we have a working Forth environment running on the SG-1000, it makes some sense to start building up the video display capabilities. Can I get sprites working on the TMS9918 for the first…

-- Macintosh Plus: The Adventure of a 40 Year Old Computer"> Updates October 13: added Part 3 - Sailing the Open Seas October 20: added Part 4 - All work and no play makes Jack a dull boy This is my…

For at least the first few years I had my Amiga 500, Kickstart 1.3 was my OS version of choice. I’m not sure I chose it, per se, because it simply came this way, but it is still my go-to for…

My earlier piece on the need for “PC” AI got me thinking about history. The first movies about computing, like “Desk Set” in 1957, were necessarily about mainframes. While Desk Set is nominally a…

I just received a package from California from a fellow called Michael Yim. He got in touch some time ago. I think I’d seen his miniature CRT monitor MS-DOS prompt toy available online, and I…

Three Japanese Game Boy cartridges did more than hold a game: infrared eyes, a running clock, even an alarm. The Hudson chips that taught the DMG-01 new tricks.

LEARNED THAT SOMEONE RESTORING ASR-33'S LACKED THE POWER SUPPLY The Teletype ASR-33 comes with a paper tape reader attached to the left side of the body. There are two flavors of the tape reader -…

well! the longer-form Sun Ray blog posts I've been working on are taking much longer than I thought they would - but in the meantime, I have wonderful news, thanks to a few different people who've…

The week of 12 to 18 October on social.omgmog.net had a pile of retro software running in odd places, from the first iPhone in a browser tab to PS2 games on WebGPU. There’s also some Nintendo…

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I remember back when I was in school, just getting into computers. I didn&apos;t have a decent one at home yet, and I gazed upon these machines with awe and wonder as aspirational devices.The one…

Just switch the first letter, they'll never know.

# Doom on a DVD player This is the written version of the talk above. Same story, with more detail: the real bytes off the disc, the measurements, and a couple of figures you can poke at. Watch,…

For a while, I have wanted to run some of my old productions directly from UniDOS , as ordinary files instead of floppy-disk images. I finally managed to free up some time for it, and the work now…

With the London Show now just a week away &#8211; technically less given that it&#8217;s now the evening of the 17th &#8211; the announcements have started to appear, and RISCOSitory has had to…

It’s been a few months without an update on my quest to find the source code to Concurrent DOS.

I&#8217;ve said it before, I&#8217;ll say it again, and I&#8217;ll gladly say it until I&#8217;m in the grave: Windows XP is still my favorite Windows of all time, period. It&#8217;s not even close.…

MEGA65 Summer Filehost Roundup. Dan&rsquo;s MEGA65 Digest for October 2026.

PICO-8 and Retro Handheld I got PICO-8 running on my Anbernic RG35XXSP and I am having a blast with it.

I started this project before the massive boom in Claude-enabled decomps started rushing the scene, so this may now be mostly of historical rather than practical interest. I planned on comparing more…

Twenty years ago I wrote WGAfakap.exe, a simple windows application that removes the Windows XP Genuine Advantage Tattoo. WGAfakap was widely used around the world to help individuals or companies…

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GLITCHES CAUSING PROBLEMS IN SOME FUNCTIONS Virtual 2315 Cartridge Facility (V2315CF) attaches to an IBM 1130 computer system, working with the internal 2310 disk drive, to allow mini versions of the…

This article delves into the history and development of the Apple Macintosh in the 1980s, exploring its technical innovations, impact on the tech industry, and relevance to cybersecurity while…

Full-size Atari 800XL announced by Atari and Retro Games Ltd. Plus Phantasia: Zelda-style RPG for the Atari 7800, Hyper Runner - A wicked sci-fi racer for the Amiga AGA by Raster Wizards, Corellian…

Editor&apos;s note: In August 2023, I published an episode of&#xa0;Chronicles Revisited Podcast&#xa0;on Br&#xf8;derbund Software and its 1985 product, Science Toolkit. Below is a lightly edited…

Not much to say on this one. I've wanted the drawings for the PDT-11/150 for a long time, to make troubleshooting and modifications easier. I saw a set for sale on Ebay recently, but the price…

After rejuvenating a Psion 5mx ... I dug an old Palm IIIc out of my garage and decided to get it up and running. Once I managed to find a suitable power supply for the cradle the Palm appeared dead,…

Sharp pixels, gritty colour banding, and DOS games running at resolutions their own era couldn’t manage. Why I still prefer the software renderer, and why it needs a fast PC.

In this series of articles we’re going to put together a development environment for making video games as if we were in 1994. For practical reasons we won’t use real hardware, but the emulated…

Now that my port of CamelForth-80 to the Sega SG-1000 is sort of working, it’s time to get it working better. There’s a lot of undone odds and ends and little bugs that I need to take care of before…

In September I had the pleasure of visiting the Retro Computer Museum in Leicester. It had been on my list of places to go for probably nearly a decade and I&rsquo;m not sure why it took me so long…

If we accept that knowledge is power, power tends to corrupt, and absolute power corrupts absolutely*, then librarians are potentially the most corrupt people in the world: they have access to…

A flickery Macintosh computer from the old times proved challenging to photograph at a bustling exhibition. I&#39;m glad modern displays are better.