IBM
The Plexus P/20 is now fully operational!
The Plexus P/20 is now fully operational!
#Plexus #P20 #fully #operational
“Adrian’s Digital Basement”
It’s been quite a journey that I’ve been on with this Plexus P/20 computer. Is this going to be the video where I can finally say that the machine might actually be fully operational?
Part 1:
Part 2:
Part 3:…
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One more 'Well done' to add to the collection. Your tenacity is impressive.
Fantastic
If I remember correctly, PROCS error in unix is a setting for the Processor(s) access. I could be wrong.
Not into retro computing personally, but i just absolutely love seeing the troubleshooting and repair process. Calming and fascinating. Especially in the case of obsecure machines that have been forgotten.
Loved the longer format. Always excited when you do cuts for troubleshooting as i know you are coming back with a discovery.
Been eating your channel up lately.
just wow
Incredible work from you and the community. What an absolute retro tech treasure trove. Massive props to the original developers of this machine for putting together such a comprehensive and well-engineered debugging and configuration interface as well, way ahead of it's time.
1:01:58 hmm, probably the 8th revision of Plexus' variant of System V release 2 i would guess
Every time you said "Bat Signal" it made me grin 🦇
Ramy fixed it.
Why do you say freaking so much? We all know you mean the other F word. It sounds lame.
Mind blowing work on this one sir.
Now the most important question: can you run Doom on it? 😁
description is on the right 😉
What a series of videos with an amazing successful outcome. Kudos to all who assisted. Well done, Adrian
Well that was an interesting rabbit hole to go down and explore.. what’s the next exciting expedition going to be .. I guess we’ll have to wait. Cheers mate.
What a climax! 😁 Great series
When Adrian checked where the Clock enable signal went and it said "BATT", i was "oh oh"..
Well, it makes sense there was a battery in the P20 in the first place.
You must be an utter optimist hoping the floppy is using any form of common format 😁 – Honestly, just go for Kermit or use hexdump/hexread over Terminal to transfer data.
I also would suggest doing some heavy load to test it. a simple while true; do wc -c /dev/whatever_harddrive; done might do the trick.
For your console not responding issue after sleep…
If you are using a USB Serial adapter, it may be the power management settings being enabled for the USB bus and devices.
Forgot about the wall command. That brings back the novelty of using a multi user supercomputer operating system for gootube commenting.
what did people actually do with this back in the day a lot of ram and cpu power for the time but it doesn't seem to do anything less advanced systems couldn't do
Please don't spoil the outcome of the video in the title. Still, I have enjoyed this series very much.
Your troubleshooting technique is spot on!!…that’s half the battle. You have inspired me to tackle my dead Amiga 4000T…thanks
This P/20 mini series kept me coming back just to see if it could finally run error free. Seeing the troubleshooting process and help from the discord users was pretty awesome.
The retro computer community is like the retro car community, people selflessly helping each other and expecting nothing in return.
Awesome repair!! Can't wait to see what more you can do with it!!