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  1. 6502 Made from 74-Series Logic at 20 MHz

    Very groovy, but I think there's way more reason to implement the 6510. Clearly more units utilized the 6502. But you can still find them new on eBay from time to time.
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  2. 74LS244 Question

    Quote Originally Posted by Chuck(G) View Post
    Assuming that pin 1 stays high, it should be possible to "feed through" pin 8 to pin 12. But the solution ultimately will be figuring out why pin 1 stays high.
    Yeah that is is the goal for sure. I just want to prove out my theory a bit. After the experience with the TVT I don't trust schematics or circuit descriptions 100%. I did try feeding through but didn't see any text appear... although I didnt type anything so maybe it would only change new text being added. I'm ...
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  3. What makes something collectible?

    Hello, folks. First time posting to this blog thing. I've managed to accumulate several dozen computers over the past several years. A thread from a few months ago has had me thinking about exactly what makes a computer collectible. Here are the criteria which I consider:

    1. Age: A given, but what's the cut-off? Personally, I think that, barring a few exceptions, a computer has to be 25 years old or older. Others, naturally, may have a different definition when it comes to their own ...

    Updated October 3rd, 2018 at 07:29 PM by AdamAnt316

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  4. TRS-80 Knowledge Archive

    by , September 1st, 2018 at 05:44 AM (Rainer's addiction to obsolete computers)
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    https://groups.yahoo.com/neo/groups/trs80archive/info <----
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    This Yahoo information group (no discussion group) is especially dedicated to TRS-80 beginners and TRS-80 fans who need more knowledge . Please check - registration is required - It can't be visited without a registration, sorry. All TRS-80 fans are welcome.

    ...
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  5. Obtaining a Forgotten Login on an IBM System/36




    This blog post comes from the issue where you may end up with a System/36 where just the administrator or all of the user accounts and passwords have been forgotten. This article has been created to help de-obfuscate an existing procedure posted about 15 years ago here on Usenet. The purpose of redoing this procedure is to be a bit friendlier on those folks ...

    Updated May 12th, 2018 at 07:17 PM by NeXT

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