What is the differnece between windows 64 and 32 bit?

[Homeroids]

Xoj said:

Homeroids said:
@Xoj

It all depends on the Win7 version in regards to the memory limitation. Most versions go to 192gb.

http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.aspx#physical_memory_limits_windows_7

i know i said it could go as 256gb theorically, but min limit it's 8gb for home basic.

Soz, misunderstood :). However upper limit is 192gb (not that we will be using a full 192gb anytime soon) and I think the Starter version, which is limited to 2gb, is not available in Western type countries?