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New In Box IBM PS/2 Model 25

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Uploaded by on Sep 8, 2008

A rare find...never opened, seldom used.

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Science & Technology

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Standard YouTube License

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Uploader Comments (uxwbill)

  • can it run Crysis?

  • @roygner215 That joke is almost as old as this computer. I think you'll need a new one. ;-)

  • @uxwbill Can it run Doom? :P

    (actually, that -might- not be too unreasonable to ask of that computer...)

  • @Fuzy2K It might be a possibility with one of the 386SX/SLC (25SX/7386/educational market only) variants. So far as I know, DOOM utilizes the DOS4GW extender and would therefore require at least a 386.

    A "Reply Board" is a series of upgrade motherboards offered to PS/2 users in the 90s and early 2000s. These boards replaced the original, and for those machines that had microchannel slots, allowed you to keep using your microchannel hardware. There was a Reply board for the Model 25.

  • has that thing got 6mb of ram? that's quiet a lot for the time my DX4 100 Mitac only had 8mb in 96

  • @Zer0kbps No. It has only 640K of installed RAM. This computer could only address 1MB of RAM due to the type of processor it uses. However, using expanded (EMS) memory could work, as that allows additional memory beyond the hardware limits by way of a "windowing" scheme. Access to this additional memory is provided through a small "window" (usually 64KB) that fits into the system's memory map. Software must be written to take advantage of this, since it's not the common approach.

Top Comments

  • @hakemon That's pretty cool, to have a computer that has been in your family since it was new. It adds to the historical interest.

    This Model 25 remains bone stock, but I have a fully tricked out Model 30 8086...it has an IDE hard drive, 1.44MB floppy (knew about that from experiments and inspecting the board to see an HD capable FDC), NEC V30, Windows 3.0 (notice the theme here), 8-bit Soundblaster card and a 2400BPS fax modem. It's a lot of fun.

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  • It is actually possible to format a 720k floppy in Windows XP. It's just you can't do it through the GUI - you have to drop into the commandline and use a few quirky switches with the format command.

  • @uxwbill LOL how is it as old it started way after Youtube even began

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