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  1. So it seems that the CPU board is not...

    So it seems that the CPU board is not functioning. Check to be certain that there is a ribbon cable connecting the H37 Double Density soft-sectored controller to the main CPU board. That cable must...
  2. I also think this is the first thing to check....

    I also think this is the first thing to check. Since it is echoing what you type, that suggests it is in "offline" mode, where the CPU board is disconnected from the H19 and the H19 is in "loopback"....
  3. FYI, RETURN is ^M and sends the cursor to the...

    FYI, RETURN is ^M and sends the cursor to the left edge of the screen (same line). LINE FEED (^J) is the traditional/simple cursor-down function. But many terminal types define a cursor down ESC...
  4. A nice, simple solution. The Kaypro (just one...

    A nice, simple solution. The Kaypro (just one example) does just that for the entire "meat" of the BIOS. It does require you to carve-out part of memory for variables/data used by the routines, and...
  5. ..or uses shared/dual-ported memory...

    ..or uses shared/dual-ported memory...
  6. That should work fine, no need to abandon...

    That should work fine, no need to abandon anything. The CP/M BIOS can provide any code necessary for the "console". There is no (or at least shouldn't be any) assumption that the console is a serial...
  7. I'm not sure when xmodem became ubiquitous, but I...

    I'm not sure when xmodem became ubiquitous, but I never used it. The H89 console is just another serial port (INS8250 chip like the other ports), and there is an H19 built-in to the box. What little...
  8. We had an old product called "tandem consoles"...

    We had an old product called "tandem consoles" which is essentially what you're asking, I think. In this product, the customer had an H89 and a remote H19, and they wanted to be able to use either...
  9. I am concerned about the information that PIP...

    I am concerned about the information that PIP does not run on your machine, and appears to have problems with interrupts and requires such drastic recovery. PIP should be the most generic and...
  10. The two boards described in the OP are visually...

    The two boards described in the OP are visually (nearly) identical, and both ROMs are incompatible with the 2X (2/84). One has a date stamp of 1984, but that must be one of the last "2/83" ("II / 4")...
  11. I think you said both of yours are pre "2X"...

    I think you said both of yours are pre "2X" (2/84) vintage, so no custom LSI chips.
  12. There is a section later in the technical manual...

    There is a section later in the technical manual that describes various "standard" floppy drives and their jumper settings. I'm not certain that older TM100s are the same as newer (IBM-PC) ones, but...
  13. I didn't mean to say Gary invented the idea. But...

    I didn't mean to say Gary invented the idea. But I think Gary, et al., correctly "read the writing on the wall" and realized this was important. Unlike most machines before them, the 8-bit...
  14. You might already know this, but the drive...

    You might already know this, but the drive jumpers should not be exactly identical. The drive select jumper needs to be different for A vs. B. The IBM PC, I think, had a twist in the cable so that...
  15. Opinions vary, but the PC certainly killed...

    Opinions vary, but the PC certainly killed hardware innovation, at least as far as the core platform was concerned. That might not have been so bad, if the PC were "perfect" - or at least close to.
  16. Beware, boards can have traces changed and...

    Beware, boards can have traces changed and otherwise look identical. I don't see any difference in U87 on the schematics, so I would guess that the 81-149 board had some errors in it that were fixed...
  17. It's difficult to defend something that seems...

    It's difficult to defend something that seems obvious to me. There were early 8086 machines that were considerably different from the IBM PC, but in general that was considered inferior in a lot of...
  18. I guess the other angle on your question was "how...

    I guess the other angle on your question was "how compatible was the hardware". In stark contrast to the PC world, the hardware was quite diverse and not very compatible at all. This speaks to the...
  19. I'll just add that a wide variety of applications...

    I'll just add that a wide variety of applications were portable. Some, like Magic Wand word-processor, provided overlay modules for terminal and printer and one could often find existing modules to...
  20. Note, boards designed for 81-149 ROMs are not the...

    Note, boards designed for 81-149 ROMs are not the same as boards designed for 81-232 ROMs. The one difference I found was support for double-sided disks was added to the boards/ROMs 81-232. I'd have...
  21. I'm not sure there is much, if any difference...

    I'm not sure there is much, if any difference between II and 2. Perhaps one is actually the IV (4/83) board. But, what worries me is that you said the II has both ROMs populated with 81-149? One of...
  22. It depends. Programs like wordstar are dependent...

    It depends. Programs like wordstar are dependent on screen control, i.e. terminal type. So they may require configuration when moving from one computer to another - or in some cases won't work...
  23. CP/NET can be used to create a connection between...

    CP/NET can be used to create a connection between the Eagle II and a modern PC, and the "server" code on the PC can act as a proxy to the internet. But, it's probably (somewhat) more work to set this...
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    Fred Wang inherited a ship already on the rocks....

    Fred Wang inherited a ship already on the rocks. It's speculation whether anybody could have saved it. The beginning of the end was when Wang stopped producing innovative products, 10-15 years prior....
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    Reading up on the Wang 2200VP/VS, which appears...

    Reading up on the Wang 2200VP/VS, which appears to be a *late* 70s offering, that was more of a minicomputer. But in the early 70s there was only the original design 2200s, using discrete logic. I...
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