retrochallenge's profile picture. RC2024/10 entry is open during September

RetroChallenge

@retrochallenge

RC2024/10 entry is open during September

shebangs! shebangs! Louis Paul implements video mode (reminds me of Timeshock Pinball!) hackaday.io/project/204138…


decl is thoroughly documenting his Drof drof-computox.blogspot.com

retrochallenge's tweet image. decl is thoroughly documenting his Drof drof-computox.blogspot.com

Purist has an update, and is attempting to draw triangles on the R500: r500.idk.st


New Entry - Robert Price: @robertprice@mastodonapp.uk Platform: RC2014 Project :  This year, I want to interface a classic Nintendo NES / Famicom joypad from 1983 to my RC2014 computer. 📷


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The N-Queens problem in VAX BASIC is enough to start tripping up Claude Code! #retrochallenge urbancamo.github.io/retrostuff/rc2…


Don't forget to post your updates on X and tag us either as @retrochallenge or #retrochallenge and we will re-tweet-x-whatever for you!


New entry from purist - Project :  Radeon R500 will be 20 years old as of 05 October 2025, so it now qualifies for Retro Challenge. The primary/minimal project goal is "draw a triangle on a Radeon R500 via direct memory-mapped hardware register and texture memory accesses". 📷


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ACMS - October 2025 - Retrochallenge - Win cash and prizes! Rebuild a Mac SE/30! - mailchi.mp/86935c36f93f/a…

digitalrampage's tweet image. ACMS - October 2025 - Retrochallenge - Win cash and prizes! Rebuild a Mac SE/30! - mailchi.mp/86935c36f93f/a…

RetroChallenge 님이 재게시함

Microsoft Excel turns 40 today. This is what Excel 1.0 looked like (it was only released on Macs).

mikko's tweet image. Microsoft Excel turns 40 today. This is what Excel 1.0 looked like (it was only released on Macs).

RetroChallenge 님이 재게시함

#retrochallenge I'm out of the block with my first update: urbancamo.github.io/retrostuff/rc2…

urbancamo's tweet image. #retrochallenge I'm out of the block with my first update: urbancamo.github.io/retrostuff/rc2…

LambdaMikel: Previously, I built a graphics card for the MPF-1B. So far it has done text output and Mandelbrot fractals. For RC2025/10, I want to see a rotating 3D cube on it!


decle is first out of the block: I'll attempt to reverse engineer and document The Drof Computox, an electro-mechanical noughts and crosses machine. It seems to have been built by a hobbyist from telephone exchange parts perhaps at some point in the 1960s.


And we're back for another month of madness! If you want to be a part of RC2025/10 fill in the form for a place docs.google.com/forms/d/e/1FAI…


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Can't have too much green! Or can you? Come and see my table at the Retro Computer Festival and find out (and bring sunglasses) computinghistory.org.uk/det/72253/Retr…


This is what I've been up to: installed Solaris 2.6 under qemu and then WordPerfect 6.0/5.2 for Unix - I have a full box including the required serial number!

retrochallenge's tweet image. This is what I've been up to: installed Solaris 2.6 under qemu and then WordPerfect 6.0/5.2 for Unix - I have a full box including the required serial number!

RetroChallenge 님이 재게시함

More work on this year's @RetroChallenge I can now read from my new Rotary Encoder module and control output on the Digital I/O module on my #RC2014 Classic 2 computer. robertprice.co.uk/robblog/rc2024…


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