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  1. Thread: Disks

    by Chuck(G)
    Replies
    5
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    226

    You know of someone still manufacturing 1/2"...

    You know of someone still manufacturing 1/2" 2400' open-reel computer tape? Care to divulge that information? I suspect that several people would be most appreciative, yours truly being one of...
  2. Once we get to the other side of this pandemic...

    Once we get to the other side of this pandemic and have a chance to look around, I fear that a lot of things that we've considered as part of our environment will be missing. With Paul Allen gone, I...
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    Recall, also that industry has used both...

    Recall, also that industry has used both pneumatic and hydraulic methods for computation. They have the advantage of ruggedness and operating over a wide temperature range. The disadvantage, of...
  4. There are several similar packages; all use the...

    There are several similar packages; all use the same (parallel) cable. Microsoft and Norton have similar offerings.
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    Faulty inverter boards weren't uncommon in...

    Faulty inverter boards weren't uncommon in earlier LCD monitors, mostly because of terrible design. You could purchase complete kits of replacement semiconductors for inverter boards. Of course,...
  6. Thread: Computer Fun

    by Chuck(G)
    Replies
    62
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    3,553

    It's funny how a little bit of airflow can solve...

    It's funny how a little bit of airflow can solve problems. I've got a couple of OrangePi Zero "cubes" here. One has a small 40mm 12v fan running on 5V (super quiet) and the thing runs for days (3...
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    Cue the Tom Lehrer song "Wernher von Braun" :)

    Cue the Tom Lehrer song "Wernher von Braun" :)
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    Search for Durango "Star BASIC"...

    Search for Durango "Star BASIC"

    Since this was around 1980, pre-anything, there's not a lot of stuff out there. However, note the benchmark numbers given here, neatly fitting just below a VAX...
  9. How many did Toshiba manufacture? I don't rely...

    How many did Toshiba manufacture? I don't rely on eBay as a guide for "rare".
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    The NEC professional line of displays is...

    The NEC professional line of displays is outstanding, IMOHO.
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    I did a full-featured business BASIC with lots of...

    I did a full-featured business BASIC with lots of extra features, cross-references, multi-tasking hooks and a full ISAM implementation in the late 70s for an 8085 based machine with 2 people on my...
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    Just curious--how many BASIC compilers have you...

    Just curious--how many BASIC compilers have you written? Having done a couple myself, I can say that it's not rocket science.

    It's more work to document the things. I suspect that there are more...
  13. There certainly are parallel port floppy...

    There certainly are parallel port floppy drives--the Microsolutions Backpack drives are perhaps the best known--but there were others; I've got one from Rancho, for example. The only serial port...
  14. Please qualify "rare". :)

    Please qualify "rare". :)
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    Given the intended purpose of the V2, I'd...

    Given the intended purpose of the V2, I'd hesitate at labeling it a "success", Dwight.
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    The inverter does handle a lot of power; between...

    The inverter does handle a lot of power; between that and the power supply is where I'd guess that the most heat is generated.
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    What drives the backlight on your IPS panel? ...

    What drives the backlight on your IPS panel? That's likely where the heat comes from.
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    No, but you have the structure and syntax (and...

    No, but you have the structure and syntax (and most of the documentation) already done. Porting the implementation to an 8088 MPU would be a job worthy of a junior-level programmer.
  19. Thread: "Bell Key"

    by Chuck(G)
    Replies
    22
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    310

    My first search involved stock tickers, which are...

    My first search involved stock tickers, which are probably the oldest of teleprinters. But I couldn't find an instance of a ticker with a bell. Interestingly, there's a 1930 Braille teletypewriter...
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    Actually, Dwight, we use differentiation in lots...

    Actually, Dwight, we use differentiation in lots of applications in analog and digital electonics in the guise of RC networks:
    ...
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    Aluminum anti-seize is not conductive--I've...

    Aluminum anti-seize is not conductive--I've measured it with my megger. Any aluminum particles are covered in a layer of non-conductive aluminum oxide. The oil carrier itself is insulating as well....
  22. I'd stay away from Styrofoam unless it's been...

    I'd stay away from Styrofoam unless it's been treated to suppress static electricity. That stuff can build up and hold some surprisingly high charges.
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    How many have constructed the more advanced...

    How many have constructed the more advanced mechanical analog computers? e.g. ball-and-disc integrators. Pneumatic computation was fairly common in industry years ago. For example, if you want...
  24. Thread: "Bell Key"

    by Chuck(G)
    Replies
    22
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    310

    Well, the Morkum model 12 (1923)...

    Well, the Morkum model 12 (1923) teleprinter certainly had a bell signal (see page 10). I haven't checked for anything earlier than that.
  25. Thread: "Bell Key"

    by Chuck(G)
    Replies
    22
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    310

    Some old terminal keyboards also used to have...

    Some old terminal keyboards also used to have keys with other TTY-esque labels, such as "Here is" and "WRU".
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