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- RAM confusion
- James Padolsey
July 16, 2006, 9:50 am
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Re: RAM confusion
A 32bit address bus can address 4 GB memory. When 32 bit OSs became available 4
GB was thought to be more than anyone would ever need (the same as they thought
about 640 KB with DOS) and the address space was arbitrarily divided with 2 GB
available for the OS and 2 GB available for applications. Since the OSs at the
time did not require much memory you were limited to slightly more than 2 GB of
useful memory. You can now use the /3GB switch in Boot.ini to make 3 GB
available to applications. It is still doubtful if it is worthwhile in most
cases to have more than 3 GB, or even more than 2 GB, because most applications
can not use more than 2 GB and even a bloated OS such as WinXP will not use much
of the memory reserved for it.
Bazzer Smith wrote:
West Palm Beach, Florida, U.S.A.
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