Originally Posted By: jford
4GB RAM is the hard limit for a 32-bit operating system. If you are running a 64-bit operating system, you can (as your computer will allow) install more than that and it is all accessible.

In Windows, when you launch a 32-bit app (such as BIAB), the O/S carves out up to a 4-GB virtual memory space for that app (depending upon how much you have and how much is already in use). If you launch another 32-bit app, it carves out up to another 4-GB virtual memory space. So a computer with 32-GB of RAM can theoretically run 8 32-bit apps with all of them having access to to a full 4-GB of RAM. Your processor then becomes the limiting factor, not how much RAM the program uses.

With just 4-GB on your computer, all the concurrently loaded apps effectively share that same 4-GB of space, just like they did in 32-bit Windows.


Hi John,

Yes, you are correct about 32-bit systems limited to 4 Gig of RAM. I have a quad-core CPU, Windows 10 64-bit OS. Wouldn't that allow the the processor to better accommodate the resource demands of other apps running in the background, thus not requiring your processor to put a higher demand on the initial 4 Gig of RAM. Hope I didn't confuse you with that. if I did, let me know and I'll try another approach. I've learned a lot from reading your posts to the various members. I appreciate that!

Alan

Last edited by Al-David; 05/08/17 04:15 PM.
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