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DMA 4 meg v. 8 meg
- Subject: DMA 4 meg v. 8 meg
- From: KP <kjpmail@gmail.com>
- Date: Wed, 4 May 2011 16:48:16 -0700 (PDT)
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I have a 4 meg RAM card in the memory slot of my ROM 03 IIgs. I have
often heard that only the first 4 megs of expansion-card RAM is DMA-
compatible. Can somebody explain what DMA actually is?
Does this mean that AppleWorks v5.1 will only recognize 5 megs (1 meg
motherboard RAM + 4 meg expansion card RAM) even if I put an 8 meg
expansion RAM card in the memory card slot?
Does this mean that the second 4 meg of expansion card RAM is useful
only as a RAM disk, and not as memory for programs to access, in order
to store long documents that the user is editing, graphics being
opened from disk, sounds being edited, HyperStudio stacks, etc.?