32 Bit OS so far can RECOGNIZE 4GB of RAM but it only uses around 3.5 GB of ram.
64 Bit OS can theoretically be almost unlimited. (math calculations)
In 20 years we will have 256-bit machinesI disagree with you.
The maximum RAM size on 64-bit machines is 16.8 million terabytes (or 16 exabytes).
It can't be achieved yet, but maybe in 20 years it will not be enough.
Remember the 16k RAM machines from the '70s to '80s? Who thought that it may become 4 GB (4 GB= (aprox.) 4 000 000 kb) in about 2008?
I disagree with you.
The maximum RAM size on 64-bit machines is 16.8 million terabytes (or 16 exabytes).
It can't be achieved yet, but maybe in 20 years it will not be enough.
Remember the 16k RAM machines from the '70s to '80s? Who thought that it may become 4 GB (4 GB= (aprox.) 4 000 000 kb) in about 2008?
I thought windows only supported 4 gigs of memory but that does that include your video card memory? how much does 64 bit vista support?