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Thread: Option 370 for AT

  1. #1
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    Default Option 370 for AT

    Trying to see who else has the rare and elusive Option 370 for AT. I haven't yet installed mine, nor have I opened the software, which is still sealed. I'm not sure if it comes with a control/monitor program, so I can run my own OS (I was thinking of installing MUSIC/SP, which is currently public domain).
    IBM Computers: 5150 (16-64K, 64-256K), 5160, 5161 expansion unit (several of these), 5170 (regular and Tempest) PS/2 Mods 30, 40SX, 50Z, 55SX, 60, 70, 77 (Lacuna & Bermuda), 80, 85, 90 XP.
    Vintage ThinkPads: 300, 360C/CE/CSE, 365X, 701C/CS, 720C, 730TE (tablet), 750C/P (color and tablet models), 755C/CE/CD/CDV/CX, 760ED, 770, 560/E, 600E/X.
    Vintage UNIX workstations: 2/120, 3/75, 3/60, SS 2/5/20, Ultra 2 Enterprise, HP 715/100, several RS/6000s ............And a bunch of other stuff

  2. #2
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    Default

    There was a customized version of VM/CMS that works with it, called VM/PC.
    Good luck getting any other version of software running if it doesn't know about the way the AT-370's I/O works through the PC.

  3. #3
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    Default

    Well despite being called Music/SP the free version is configured for ESA mode so it has no chance of running un-modified on an AT/370. I suspect that the P370 control program which you can download from

    http://www.bitsavers.org/bits/IBM/VM_PC/

    only supports the diagnose functions CMS uses for disk IO rather than StartIO which most IBM operating systems use...
    .. you will also find more info ...

    http://vm.marist.edu/~vmshare/
    Dave
    G4UGM

    Looking for Analog Computers, Drum Plotters, and Graphics Terminals

  4. #4
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    Default

    Would MTS run?

  5. #5
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    Quote Originally Posted by MrArgent View Post
    Would MTS run?
    Even more unlikely IMHO. The current "easy run code" is also ESA only The 360 version only ran on a 360/67. It should be possible to build a pure 370 version but I that needs DAT and I have no idea if the AT/370 has DAT (virtual memory). CMS is a very simple operating system. Its single user, real memory only. No shared disk. Single threaded. Of course that doesn't matter because because CP(aka VM) creates lots of virtual 370's and deals with all the mess....

    ... actually reading the docs I say it says "SIO is not supported" so you can't run a "real" OS only the CMS provided with the machine...

    ... you might do well asking on the Hercules/390 list. There are a few folks on there that used to have S/390 machines.
    Dave
    G4UGM

    Looking for Analog Computers, Drum Plotters, and Graphics Terminals

  6. #6
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    I recall seeing in an IBM sales brochure for the Option 370 that it was capable of using the hard drive for virtual memory, but I don't remember how much was able to be allocated.
    IBM Computers: 5150 (16-64K, 64-256K), 5160, 5161 expansion unit (several of these), 5170 (regular and Tempest) PS/2 Mods 30, 40SX, 50Z, 55SX, 60, 70, 77 (Lacuna & Bermuda), 80, 85, 90 XP.
    Vintage ThinkPads: 300, 360C/CE/CSE, 365X, 701C/CS, 720C, 730TE (tablet), 750C/P (color and tablet models), 755C/CE/CD/CDV/CX, 760ED, 770, 560/E, 600E/X.
    Vintage UNIX workstations: 2/120, 3/75, 3/60, SS 2/5/20, Ultra 2 Enterprise, HP 715/100, several RS/6000s ............And a bunch of other stuff

  7. #7
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    Quote Originally Posted by pkhoury View Post
    I recall seeing in an IBM sales brochure for the Option 370 that it was capable of using the hard drive for virtual memory, but I don't remember how much was able to be allocated.
    The IBM PC XT/370 should give you some idea, but I don't know if the AT's Option 370 has the same card complement etc.:
    https://en.wikipedia.org/wiki/PC-bas...omputer_XT/370

  8. #8
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    Here's a better question - is there anything I can actually do nowadays with this card, aside from showing it off at our club's next GTG? I'd obviously prefer to show it off doing something, though I'm only really familiar with using Hercules.
    IBM Computers: 5150 (16-64K, 64-256K), 5160, 5161 expansion unit (several of these), 5170 (regular and Tempest) PS/2 Mods 30, 40SX, 50Z, 55SX, 60, 70, 77 (Lacuna & Bermuda), 80, 85, 90 XP.
    Vintage ThinkPads: 300, 360C/CE/CSE, 365X, 701C/CS, 720C, 730TE (tablet), 750C/P (color and tablet models), 755C/CE/CD/CDV/CX, 760ED, 770, 560/E, 600E/X.
    Vintage UNIX workstations: 2/120, 3/75, 3/60, SS 2/5/20, Ultra 2 Enterprise, HP 715/100, several RS/6000s ............And a bunch of other stuff

  9. #9
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    Quote Originally Posted by pkhoury View Post
    Here's a better question - is there anything I can actually do nowadays with this card, aside from showing it off at our club's next GTG? I'd obviously prefer to show it off doing something, though I'm only really familiar with using Hercules.
    Well you should be able to use it as it was designed to work. So run VM/PC and its based on VM/SP3 which gives you REXX and XEDIT. You should also be able to install any of the software on the VM n-pack Y-Disk onto the system, but it will run slowly.
    Dave
    G4UGM

    Looking for Analog Computers, Drum Plotters, and Graphics Terminals

  10. #10
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    Default

    Huh, sounds like there's some major asterisks with this one.

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