NoxiousPluK

NoxiousPluK

@noxiouspluk.bsky.social

I enjoy messing with old smelly computer stuff. Open source enthousiast from the Netherlands. Hobby with gamedev and music. Technical advisor in my day job. https://noxiouspl.uk/

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This is a Unisys 286 'Network PC' (thin client) from 1991 It's designed to clip onto the back of a Unisys CRT monitor which I'm sure are unobtainable nowadays. I don't think they were ever very successful and its hard to find info on them. Managed to get one new in box. #retrocomputing

Working on properly emulating the RTL8019AS (thanks to the 86Box project) as a 'SLOT2 cartridge' in the 'M2000' P2000T emulator, so I can use the emulator to test/build software for my 8-bit NIC. Working IRC client!

Moderate success! Two Philips P2500 PSUs got sacrificed in the process of making one boot to ROM, but that totally worked! And the Philips monitor works too! 45+ old electronics struggle a bit when coming back to life. The next days/weeks will be PSU repair... #retrocomputing #z80 #p2500 #p2000b

Finally pulled apart one of the other P2500's and as expected this one has the secondary CPU card! ROM dump time ❤️ #retrocomputing #z80 #p2000

I have put online the source and first usable build of the Philips P2500/P2000B #emulator, including ROMs and disk images - ready to play with. See notes in 'Releases' for a quick 'how to run', or Readme for all the details. #retro #retrocomputing #emulators #cp/m #github #P2000

@hmblank.bsky.social I noticed on your website that you own a Philips P2500! Did you ever find more documentation or manuals? I happen to have a few that I've been working on reverse engineering (including tracing PCBs, dumping ROMs, building an emulator, etc) and documenting. Would love to chat!

Managed to make the P2000B/P2500 CPU card ROM boot in an emulator that I've been trying to build to the point that it shows this. Long road to go, but it finds the (emulated) floppy controller and tries to boot from it.

You are up to date.