Macintosh performa 640 and dos card

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Level 1

5 points

Macintosh performa 640 and dos card

Hi there, I have a Macintosh performa with a DOS card, a 486, with no operating system for the pc. I can't find a way to install DOS on it. I know it's not a Mac problem but it is part of a Mac.

Power Macintosh G3 (beige), PowerBook G4, and Macintosh classic II, Mac OS 9.2.x, ,Mac os x 10.5, and system 7

Posted on Dec 26, 2010 5:01 PM

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Answer 1

Jeff

Level 6

12,328 points

Dec 26, 2010 7:25 PM in response to air97

Your Performa 640's PC Compatibility card supports MS-DOS 6.22, Windows 3.11, and Windows 95. The installation disks for the included version shipped with your 640 when new. If you haven't done so, I think you should read the Performa 640 DOS-Compatible User Guide, as many of your questions will be answered. You may also want to install some memory (72-pin SIMM, 60ns) in the DOS card's single RAM slot, to avoid sharing the Performa's installed memory with the Mac OS environment. A separate DOS User Guide was also included with your 640 when new.

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