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    Thank you!

    Thank you!
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    Question about the RAM for CP/M 3

    I know that for the banked version of CP/M 3 there should be a common block of RAM and several blocks (up to 16) that can be swapped. The System Guide says the common block can be as small as 4 KB...
  3. First a question: do you have a drive? What you...

    First a question: do you have a drive? What you can do at least is to make a copy of the disk. If that works out fine then you know that the floppy is still readable and you have a backup disk.
    I...
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    To disassemble the program? That would be one of...

    To disassemble the program? That would be one of the last options. Anyway, an article in Dr. Dobb's led me to this DOSRIF.ZIP but I couldn't download it, even after registering. Another search lead...
  5. Very nice idea. I hope you had a lot of fun!

    Very nice idea. I hope you had a lot of fun!
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    FYI, I'm not. Thinking about it, it will be a...

    FYI, I'm not. Thinking about it, it will be a driver that enables a PC to recognize the directory structure of another computer as parts of its own. I would prefer a driver that can be placed on both...
  7. The second picture shows the part of an EPROM...

    The second picture shows the part of an EPROM programmer where you insert the EPROM to be burned.

    Regarding the computer: there exist various programs that can tell you what for CPU and...
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    First: I realized that I don't need the server...

    First: I realized that I don't need the server side software at all. I'm only interested how I can integrate the obtained information of the directory structure into the directory of the client. HOW...
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    Unfortunately it is just the software, no sources.

    Unfortunately it is just the software, no sources.
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    Mainly to learn HOW it is done. I can use the...

    Mainly to learn HOW it is done. I can use the knowledge for other projects.


    I have the original Novell-DOS 7.01 and I made it work so that was not the problem. But in general it takes so much...
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    Network over LPT or COM port

    You have INTERSVR and INTERLNK from MS-DOS and Lantastic 4.1 that can be used to access the drives of another PC over the LPT or COM port as if they were part of your own directory. I'm quite well in...
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    Maybe a bit off-topic but one of the ideas I...

    Maybe a bit off-topic but one of the ideas I still have is replacing the 4116s by 41256s. This is doable. In the '80s the magazine Elektor published a 16 KB expansion card and later published an...
  13. But.... you cannot use any 6845 to replace the...

    But.... you cannot use any 6845 to replace the 6545. The ones that did not work, at least for me, were the original Motorola 6845s. The ones that did work were the UM6845 and the ones from Hitachi. I...
  14. Could you explain what you mean with "zx",...

    Could you explain what you mean with "zx", please? I first thought about the ZX-Spectrum but I'm not sure if you mean that.
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    As above but with a 20 GB HDD and using the XTIDE...

    As above but with a 20 GB HDD and using the XTIDE BIOS. And now it is "only" using 8 GB.
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    AFAIK they only did that with the 30xx series....

    AFAIK they only did that with the 30xx series. Have you, or anybody, ever seen one? (just curiosity, not disagreeing)
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    This is what I know: - The Fat Forties, the 40xx...

    This is what I know:
    - The Fat Forties, the 40xx with a big screen, have the same motherboards as the 8032 series. The differences is the way some configuration wires are soldered on the board.
    -...
  18. Hook the oscilloscope to the reset line and that...

    Hook the oscilloscope to the reset line and that will tell you if that is the source for resetting your computer. If indeed, have a look at that circuit. Also have a look at the power-good signal...
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    When going through my stack of boards I happened...

    When going through my stack of boards I happened to find a board that has a 386SX: not soldered but using a socket. Because this board was not of the usual AT format, wrong placed holes and LPT/COM...
  20. Very good argument! :)

    Very good argument! :)
  21. Never so far. So that's why I wondered why...

    Never so far. So that's why I wondered why somebody took the trouble to create these boards. If it were boards with enhancements, I could understand but these plain copies?

    Just wondering, not...
  22. Thread: Original CPU?

    by Ruud
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    Picture?

    Picture?
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    This "cloudy" is not normal. I have seen it on...

    This "cloudy" is not normal. I have seen it on old boards that were not stored properly i.e. a bit mosty conditions. Sometimes you can get rid of it by using some alcohol.

    These "burnt" are...
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    You have to use ALL pins to power the card. That...

    You have to use ALL pins to power the card. That also includes pin B10 (IIRC) that is also a GND. Reason: I have seen cards where B3 and B29 powered different parts of the card. If that is case with...
  25. I found out later that the info can be found...

    I found out later that the info can be found here: matthieu.benoit.free.fr/all03/source.htm, at the bottom of the page.
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