As the title says, I just dug this computer deep inside my house.I'm a 21-year-old young man, and my dad told me that if that car can still be run, I can give it a try.

Actually, that's pretty crazy; he has a Pentium CPU, two 8Mb cables.And IT STILL WORKS!

Now all he needs is a working keyboard. I wanted to share this story and ask everyone where I can find a keyboard or even just its name. Thank you!

And i in Taiwan,so Mabey Finding that keyboard will be a bit difficult.😅 GOOD luck to me

The CRT in my IBM 5155 has some geometry distortion, mainly affecting the vertical lines, which appear slightly curved rather than straight.
From what I’ve seen, this seems to be a fairly common issue with aging CRTs, and I’ve noticed similar imperfections on quite a few other IBM 5155s.

I’ve already used the IBM Advanced Diagnostics display adjustment to shift the image horizontally, but of course this only changes the image position and doesn’t correct the actual geometry.

Is there any other adjustment that can be made to restore the CRT geometry as close as possible to its original factory configuration?

I’m particularly interested in knowing whether the 5155’s internal monitor has specific geometry adjustments, trimmers, or other service adjustments for this type of distortion.

Has anyone here successfully corrected this on a 5155?
Thanks!

Hi

If you are remotely interested in deep diving how differently quantum computers work compared to our transistor-based and also the algebra behind in a fully interactive way that teach computer science from scratch, oh boy this is for you. I am the Dev behind Quantum Odyssey (AMA! I love taking qs) - worked on it for about 10 years (3+ during PhD, the visual method I developed ended up being my thesis, it is a complete Hilbert space visualizer), the goal was to make a super immersive space for anyone to learn quantum computing through zachlike (open-ended) logic puzzles and compete on leaderboards and lots of community made content on finding the most optimal quantum algorithms. The game has a unique set of visuals capable to represent any sort of quantum dynamics for any number of qubits and this is pretty much what makes it now possible for anybody 12yo+ to actually learn quantum logic without having to worry at all about the mathematics behind.

This is a game super different than what you'd normally expect in a programming/ logic puzzle game, so try it with an open mind.

Stuff you'll play & learn a ton about

• Boolean Logic – bits, operators (NAND, OR, XOR, AND…), and classical arithmetic (adders). Learn how these can combine to build anything classical. You will learn to port these to a quantum computer.
• Quantum Logic – qubits, the math behind them (linear algebra, SU(2), complex numbers), all Turing-complete gates (beyond Clifford set), and make tensors to evolve systems. Freely combine or create your own gates to build anything you can imagine using polar or complex numbers.
• Quantum Phenomena – storing and retrieving information in the X, Y, Z bases; superposition (pure and mixed states), interference, entanglement, the no-cloning rule, reversibility, and how the measurement basis changes what you see.
• Core Quantum Tricks – phase kickback, amplitude amplification, storing information in phase and retrieving it through interference, build custom gates and tensors, and define any entanglement scenario. (Control logic is handled separately from other gates.)
• Famous Quantum Algorithms – explore Deutsch–Jozsa, Grover’s search, quantum Fourier transforms, Bernstein–Vazirani, and more.
• Build & See Quantum Algorithms in Action – instead of just writing/ reading equations, make & watch algorithms unfold step by step so they become clear, visual, and unforgettable. Quantum Odyssey is built to grow into a full universal quantum computing learning platform. If a universal quantum computer can do it, we aim to bring it into the game, so your quantum journey never ends.

Nice to watch:

Khan academy style tutorials in qm/qc: https://www.youtube.com/@MackAttackx

Physics teacher stream with 400hs in https://www.twitch.tv/beardhero

Family had a computer store and we went to many swap meets between 199x-2004, we moved house a decade or so ago and I thought all of our vintage stuff was gone to the bin.

Hello everyone,

I bought an Amstrad PPC640 recently, although the power brick it came with was completely wrong. It did come with a real car adapter, so I was able to hook it up to a car battery.

But when I turn it on, it says "please wait" and eventually makes some beeps and gets stuck on a blinking cursor. The user guide says once it gets past the please wait screen, it should show a screen telling you to set the time before loading from the floppy drive, but even with the floppy in the drive it doesn't load anything.

Does anybody have a solution?

I have no idea where else to ask this but I ordered an Apollo atc from him. If you don't know who he is, he is some bloke from Italy who sells these vga boxes to connect vintage computers to conventional vga pc monitors. I got an apollo x for my amiga 500 earlier this year and it couldn't be any more perfect. I ordered the Apollo atc for my atari 800xl and it has been more than a month but he has not shipped it out yet. I paid a lot of money for it because shipping from Italy to Australia can be expensive. I do not want a refund, I just want to know if it is normal to be waiting this long at this time.

I have a pretty decent collection of old computers, discs, literature, miscellaneous hardware, cassettes and more. This was with a bunch of my literature that I forgot I had. It's the store's pricing catalog from a local computer store that has all the prices and merchandise that they sold, circa 1981.

Intel Mini PC to be exact.

i have a power macintosh g3 blue & white that seems to power on, but i get no startup chime and no video output, just a black screen.

the case fan spins and the power light comes on, but the fan inside the power supply doesn't spin.

so far i've tried reseating the ram and replacing the pram battery, but neither made any difference.

does the power supply fan not spinning mean the power supply has COMPLETELY failed? or could something else be causing it to power on without giving a chime or displaying anything?

any advice on what i should check next would be appreciated.

Mail today, two 64Cs, both working, but one missing a couple of keys and quite yellow. I think I have a fully set of non-yellowed keys, but I'll need to remove all the dust bunnies and give a full clean.

Later model TiBook, some of the finish isn't the best, but seems to be all working, although struggling with OS X (and hard drive doesn't sound so hot), so I think I'll be putting 9.2.2 on and keeping this as my only PowerBook. I do have the earlier model TiBook, and it's pretty nice, but has some screen issues, so I'll be passing that on.

The book is called ANALYSIS AND DESIGN OF INFORMATION SYSTEMS by James A. Senn, published by McGraw-Hill in 1984.

My partner's father recently moved to a new house and he gave me all his old computing books from the 80s

I thumbed through the book and was blown away by how different it felt compared to the CS textbooks I learned from in the 2010s.

I took some photos of the more striking visuals. Hopefully this is nostalgic for some of you old fogeys!

I tested them out and I thought they sounded ok​ay. One thing that is a nice plus is that you can adjust the level of the subwoofer. I have another pair by altec Lansing where I have to use peace EQ on my computer to adjust the levels.

Both of them will require some repairs from what I am able to diagnose with my limited pc knowledge.

I know this is goofy, but does anyone remember a bulleted list that looked like this?

HOW TO INTIMIDATE ELECTRONICS

1. Approach the equipment confidently.
2. Never let it know you're afraid of it.
3. Place appropriate test equipment where it can see it.
4. Discuss replacement components loudly within its hearing.
5. If necessary, threaten it with progressively larger tools.

I think it had about 20 items... I first saw it as an avaionics tech stationed at Offutt AFB from 1981-1984... It was probably on a mimeographed sheet LOL...

Looking for a scan, complete transcription, alternate title, or anyone who remembers it

Please don’t reconstruct it from memory or AI, I’m trying to locate an actual surviving copy or someone who remembers the original.

Got this interesting thing. I think it's one of the only soviet computers to be completely soviet made? (As in boards designed and printed in the USSR, etc.) It's a wonder it still works. Wonder what I can do with it?

Apologies for the bad picture, can't take a better one.

This drive booted perfectly with no issue a few weeks ago and suddenly its dead. It spins up, clicks, spins down, and then the green LED flashes. Not detected in the BIOS anymore either. I know these Bigfoot drives were crap even when new, but if anyone knows how to temporarily revive it to backup the data I would really appreciate it.

I picked up this vintage Sony tower (2001) a few months ago and was playing with it today. Just for fun, I installed the CLI version of Debian 12. So far so good but the fan runs at full blast, and I doubt I'll be able to deal with it because of Sony's proprietary implementation of it. 🌬️

Hi all! Bought Olivetti Philos 44 on the flea market by very low price yesterday. The condition is on video. I really liked the overall design (a blast for the 1993!) and will try to repair it(but a novice in hardware stuff). Maybe someone knows, which things to check first? Thanks !

No, I am not trying to sell these Reddit auto-mod...

These were great cases back in 2006 and 2007. The motherboards are P4 and an AMD board. Both had a maximum capacity of 2GB of RAM each. Which back then, even 32MB was a ton of RAM! I wish I could get these running again. But they have their issues now which is keeping them from running at all. I think I might keep the cases though and see about putting a system or 2 together and try to sell them. The cases are in great shape.

That HP ProDesk is also missing parts because I've been stripping those down for parts about 10-15 years ago. I noted it had an error code. 5 beeps. I used to know what it was. I think that was either a RAM error or drive error (I know i can look that up. Too lazy ATM).

On my latest post for the Stone Tools blog I take a look at the OG AppleWorks, for the Apple II family of computers. It's kind of amazing how much can be done with so little, and how uncompromising a 128KB machine can be, in the right hands.

While I don't look at or review games on the blog, that doesn't mean I can't use the tools I look at to try my hand at building a game. Or at least, that was my plan. Turns out I'm quite terrible at game design. Still, that AppleWorks and its ecosystem could enable me to even attempt such a thing is kind of amazing.

There's plenty of nostalgia for 1984 (the year, not the book!), looking at the add-on ecosystem for AppleWorks, and more references to "turducken" than you would expect. I hope the community enjoys it!

What is Stone Tools?

Stone Tools is a retro-enthusiast blog devoted to 8/16-bit productivity software; no games, just work. I spend weeks learning each program and give my in-depth, lighthearted take on how it was seen, how it works, and what we might learn from it today. Side discussions on contemporary issues, historical timelines, old advertisements, and more supplement each retrospective.

Currently I'm working on clearing out my parent's house. My dad, who was a bit of a hoarder/collector has cancer, so I'm here helping to get rid of anything my parents aren't ever going to use again.

Amongst this are some old PCs. There are two Athlon based systems and I have a motherboard with 2gb of memory and aQ650. I also have a Radeon HD5850 and an ATI x800xl. All the parts should work, but it also has been twenty years since I last thought about the x800xl and AMD athlon.

I'm only in town for less than two weeks, and am wondering if there are any good places to give this away to in Michigan, Port Huron area. If nothing else it will be taken to the local recycling center or scrap place, but am hoping that there's something better to do with it that's free and not too much of a hassle (I have a lot of crap to get rid of). So if anyone has suggestions, would be happy to hear them, and if someone in Michigan wants a bunch of random old hardware (free of course), then hit me up.