on 5/18/02 5:28 PM, Chuck Israels at [EMAIL PROTECTED] wrote:

> I have always been thus advised, ...(to turn Virtual memory off)... and have
always done so.  So, just
> out of curiosity, what does virtual memory do, and why would one ever
> want it switched on, since all I ever hear is "switch it off?"
> 
> No need for a voluminous answer.  This is just a query so that I
> might better understand how the Mac works.

C'mon Chuck; you know better than that on this list! ;-)
As has been noted, it's advisable to turn it off for serious audio work. But
few people these days use it to have more than one program open. It's really
a memory management tool that allows programs to launch faster and use less
memory when running. I'm surprised that those of you who turn it off all the
time don't get "out of memory" messages in certain programs, especially when
exporting graphics into word processors or page layout programs. If this
happens, quit the application, select it (one click), open "get info" from
the "File" pull down menu, choose "memory" and assign more memory (usually
about 3000k does the trick) to that application. In fact, there is usually a
note at the bottom of the memory assignment window that tells you how much
more you'll need if you turn off VM.
I should add that I keep it on almost all the time and have never suffered
ill effects.
Doug

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