Hi Joseph,
That was a helpful and understandable explanation.
I haven't been able to look at the page you referenced yet, but I
hope to soon.
I suppose what I mostly questioned was where would the virtual
memory come from.
As I understand it, on some systems, the total virtual memory is
the physical memory, (RAM), + pagefile(s), (areas of disk into
which data or code is moved, bringing those parts of disk under
memory management control).
The memory on the BN might not be like that--I don't know.
If it was though, I think you implied that the most it could have
was 32 MB, (of virtual memory).
I don't know how much RAM is on a BN, but the remainder might be
permenantly set aside from one, or even both of the disks.
If that were so, it might not show up in the disk space, because
it would always be considered as virtual memory, and not really
as available disk.
However, I am doing rather a lot of speculating here--I don't
know.
My question is just out of curiosity.
Regards,
Steve.
----- Original Message -----
From: "Joseph Lee" <[EMAIL PROTECTED]
To: "'stephen'" <[EMAIL PROTECTED]
Date sent: Wed, 28 Nov 2007 16:40:29 -0800
Subject: RE: [Braillenote] Where does virtual memory physically
come from?
Hi Stephen,
Virtual memory is a way of storing information, such as data and
program
code that is larger than availible RAM. A"s it is "virtual," it
is not
physically present. Under some operating systems such as Windows
NT and CE,
each program (more precisely, process) gets certain amount of
virtual
memory. Under Windows NT and similar operating sywstems (2000,
XP, Vista),
each program is allowed to use whatever virtual space it needs.
The overall
virtual memory limit on these operating systems is 4 GB (for
32-bit systems.
Under Windows CE, the limit is 32 MB (under CE 6.0 and above, the
limit is 2
GB). Since it is "virtual," you won't see any reduction of free
space on
either KeySoft System Disk or on the Flash Disk.
To learn more about how virtual memory works, go to:
http://www.cs.umd.edu/class/spring2003/cmsc311/Notes/Memory/virtu
al.html
My knowledge ends here. I think Jonathan, Alex Parks or any other
people can
explain more about this.
Cheers,
Joseph P.S. Was this post hard for you to understand?
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
stephen
Sent: Wednesday, November 28, 2007 11:54 AM
To: BrailleNote List
Subject: [Braillenote] Where does virtual memory physically come
from?
Hi Folks,
Just wondered, where does the nonphysical part of virtual memory
come from?
Is it taken from the flash or system "disk" or even somewhere
else?
Thanks and regards,
Steve.
"seek ye first the kingdom of God, and his righteousness;"
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