Friday 16 March 2018

32 bit - Why is it that 32bit Windows XP can only address 3GB




Possible Duplicates:
Windows XP and RAM 3.5GB+
How to Check RAM Size without Looking at Motherboard



If Windows XP is a 32-bit operating system, and 2^32 equals 4GB, why can't it support 4GB of memory?



Answer



There are other types of memory that also need to be accessed, such as the video memory.


512mb is often used for your vram while the other 3.5 is used for your system ram.


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