What do 32-bit and 64-bit imply in the world of Windows Operating System? The term 32-bit and 64-bit refers to the way windows access the chunks of data in the computer's memory. Doubling the size obviously meant to improve your PC's performance. But it doesn't necessarily mean you notice an increase in speed unless you have a calibrated microsecond stopwatch to tell the difference. The real advantage having a 64-bit window is its ability to address the memory beyond the 4GB limit. That is very important when you are having a high-volume Web Server.
Having a 64-bit standard might be possible since Microsoft has publicly promised that the next version of Windows will be available in 64-bit editions only.