It's a printer interface. This magazine has an article which describes it in some depth:
retro8bitcomputers.co.uk/Content/downloads/magazines/yourcommodore/YourCommodore05-Feb85.pdf
16.07.2025 12:17 — 👍 1 🔁 0 💬 1 📌 0
The future we were promised™
www.commodore.net
Retro computer YouTuber and nerd. From the small town of Bodø in the arctic Norway. Arctic retro on YouTube. My day time job is software engineer.
Hello Cave Dwellers this is The Cave, a vintage Computer, Console
and gaming channel and museum in Stroud, UK.
Watch videos at https://youtube.com/@TheRetroCollective
Book Tickets at https://retrocollective.co.uk
vintage computers, tubes, the MOnSter6502, cross-sectioned electronic parts, capacitors, and other detritus. coauthor of http://nostarch.com/open-circuits
The Future was 8bit, and still is in my house.. C64p, SD2IEC, Penultimate+ Cart, divMMC Future, all sorts. VIC20's rulez. Commodore, Sinclair, BBC, Oric, Dragon
www.tfw8b.com www.thefuturewas8bit.com
Programmer, hardware tinkerer.
Website:
www.factorofmatt.com
Youtuber. Retro Gaming and Computing Tinkering. Prone to cases of epic self ownage. www.youtube.com/markfixesstuff - UK / North Hampshire
Exploring retro computers and electronics.
http://youtube.com/NoelsRetroLab
http://patreon.com/NoelsRetroLab
My personal/gamedev account: @noel-llopis.me
Embedded Software Engineer. Former Electronics R&D engineer. Loves to play with electronics on my free time.
https://youtube.com/@bwack
Programming, gaming, collecting, and making videos about 8-bits. Amateur computer detective and historian, gradually finding everything is connected. Commodore is my first love, but there's something interesting about every make and model.
I'm Glen and I run the YouTube channel Casual Retro Gamer or CRG for short where we take a laid back look over some old retro computers while trying to fix them or build mods and expansions.
Soul of an artist, mind of a nerd. Passionate creator who loves Commodore #Amiga, #Synthesizers, Music Creation, Art, Photography, #Retro Systems, Electronics and more.
Website: https://msmadlemon.com
Youtube Channel: https://www.youtube.com/@MsMadLemon
Hello everyone! I'm Adrian Black, a retro computer YouTuber who fixes stuff from Portland, Oregon.
Main: youtube.com/@adriansdigitalbasement
Second: youtube.com/@adriansdigitalbasement2
Extras: youtube.com/@adriansdigitalbasementextras
Resurrecting old technology one part at a time.
youtube.com/@TheRetroChannel
discord.com/invite/393FYaM6gM
tindie.com/stores/theretrochannel/
patreon.com/theretrochannel
I repair/hack/make/destroy stuff on YouTube/PeerTube.
Retrocomputing, VintageAudio, Tinkering. As unprofessional as it gets.
Chaotic good. Anti fascist. C64 rules.
https://janbeta.net/
Retro and vintage tech YouTube fun and games over at
Main channel
https://www.youtube.com/c/MoreFunMakingIt
Second channel
https://youtube.com/@morefunmakingit2
Website:
https://www.morefunmakingit.co.uk/
Long-time Commodore 64 scener and floppy botherer, Linux guy, retro-computing and electronics enthusiast, occasional writer / artist / designer / musician. Also that kid with the weird eyes off of GamesMaster.
official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app
