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  1. PCXT

    Stackoverflow got a new Code of Conduct, most downvoted post ever

    These CoCs are made for the one thing: To keep advertisers or shareholders. Modern Internet works because advertisement. For some anti-logic known only in western countries, hard disk space is getting cheaper so hosting goes more expensive, and pages must rely on advertising to live. The problem...
  2. PCXT

    Share your projects

    OK, I had to do something to relax. However, the problem is that making things of wood was out of question as it was too noisy. So I decided to do something useful with my open source IC tester software project. Yes, C++ and Qt, so relaxing... First thing, when I was making chip models for...
  3. PCXT

    What have you bought recently?

    More spare logic chips, TTLs and some CMOS. I found a good and even cheaper local source of these (now there's a question: Newspaper or 40-50 chips? :) ). With this, I plan to get 3-5 of every chip accessible there to have spares for 8-bit computer repairing purposes and get a bit more of...
  4. PCXT

    World News Thread (Politics,whatever)

    Unfortunately, in such controlled environment like modern "social media", in which even "private" communication are subjected to monitoring and censorship, I just cannot naively believe in "spontaneous" and "from-the-bottom" actions. Especially when many of these proposed by different actors...
  5. PCXT

    World News Thread (Politics,whatever)

    About this Stallman thing, this affair exposed social problems very well. That mob controlled by some party gives this party has a significant control. That people just don't want child abuse cases to be properly solved and criminals to be prosecuted, people just want to hang someone. That we've...
  6. PCXT

    New HDD dead?

    I remember about 5-8 years ago I bought very cheap 2TB WD Green drives (yes, these cursed Greens which failed mechanically but new) for backups and rarely accessed slow (but large) storage, they are generally OK if the proper firmware fix has been applied early (Timer3? Idle3? - something like...
  7. PCXT

    Share your projects

    Sometimes they were right in a design, just added in some specific versions, like for FM ranges in export versions of radios. Sometimes they were added in "starting" stage, when the mchine was started for the first time after assembly and inspection. I remember seeing a Z80-based computer with...
  8. PCXT

    Share your projects

    @FBnil The switch is mode selector, the mode works by extending one paddle in height. The paddles are generated just by stretching pulses, so adding more capacity = longer/wider paddle. The wood, or rather floor panel material (a bit more sound absorbing), was the problem as the "speaker" is the...
  9. PCXT

    Are you a Linux user or Windows user? Or maybe a macOS user?

    The last Windows I had contact with was XP. I still use it in some machines. I also have Win98 machine which runs EPROM programmer and floppy disk drives. After XP I found a really bad points in a license I couldn't accept, so I started to use Linux. I use Debian with Trinity Desktop Environment...
  10. PCXT

    Share your projects

    Finally the "Pong"-like is ready.Most parts are salvaged from different things, generally the design uses late 1970 - early 80s technology. Relatively simple from outside. Inside, there is a power supply unit, a set of modules, and all controls: I have a quick description of modules too.
  11. PCXT

    Share your projects

    Another Pong problem or the non-filtering of interferences. So last time I finished making PCBs and power supply unit. It was quite hard to make a generator, especially as it starts from 1MHz with my poor PCB technology but finally I got it. All readings on scope were OK, TV started to react to...
  12. PCXT

    Share your projects

    Another struggle while making PCBs using "McGyver" method. This time no need to improvise etching agent from contents of kitchen :). I decided to make a replica of Pong-like game, to be exact the earliest design I will find in domestic magazines. I have found a nice one in 1976 magazine, made of...
  13. PCXT

    What have you bought recently?

    First of all, don't buy the "XCSD" brand SDHC cards. Advertised as "Class 10"? No, they should be advertised as "Class 225" as in ST-225. 0.8-0.9MB/s write, 1.5-1.8MB/s read. Booting an RPi took 15 minutes and blown up, as some operations got timed out and ext4 fell apart right after resizing...
  14. PCXT

    What have you bought recently?

    Finally I found a source of very cheap TTL logic chips. I was thinking that it will be cheaper in Internet shops - wrong, it was a local man who sells electronic leftovers in the local market. At first, I bought a small quantity for testing are they OK, but it looks like they're OK, they are new...
  15. PCXT

    Wanna watch an old computer render? You're in luck!

    @TrashyMG I heard about POV-Ray, and it was similar, but not it. It was more function-oriented, a bit C-like, in fact it was impossible to do anything good looking without making own functions. In this program I could generate things in a different ways, there were some interesting tools for...
  16. PCXT

    Wanna watch an old computer render? You're in luck!

    @TrashyMG This Amiga has to be really boosted up. I remember about... 18 years ago I was doing a simple 3D graphics with my only Pentium computer (powered with MMX technology, overclocked to blazing 225MHz) and render times were significantly larger than these in the movie. The problem was that...
  17. PCXT

    Ubuntu is phasing out i386 (32bit) libraries altogether

    I wonder what will happen to WINE... In Debian it's not only 64-bit, it needs some significant i386 environment to run 32-bit Windows binaries. The transition was quite obvious for requirements reasons - today most so-called programmers do not know how their computers work and they write CLI...
  18. PCXT

    What have you bought recently?

    Last Sunday I went again to the flea market and I got something interesting: A 256kB XT mainboard in original package. The problem has been quickly found and bad chip has been replaced, so now I have a 4.77MHz mainboard in a good condition. Two weeks ago: Two Compaq Aero notebooks, 33MHz 486...
  19. PCXT

    Is it ok to distribute an OS with a passwordless ssh root access... ?

    It's totally OK if it's well documented. What is a difference between passwordless access and universal password which is quite standard in embedded distributions? If it is clearly in documentation or installer, users will be able to secure it when configuring system as they want - with...
  20. PCXT

    What have you bought recently?

    Wow, I missed that, really nice machine. It's Zenith, they were quite solid and many of them work well today. The only question is is it 8088/6 or 286? If it's pre-SlimsPort they are drive bays. They should rotate, showing its sides and floppy disk can be inserted. As far as I remember, left...
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