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Difference between a 32-bit and 64-bit computer

By Archana

The number of bits in a processor refers to the size of the data types that it handles and the size of its register.A register is a small amount of memory available to the processor in order to speed up its operations.Thus,a 64-bit processor can address  a larger physical memory locations and hence,can handle larger amount of RAM, than a 32-bit processor.
Another difference is the speed.A 64-bit processor can perform more number of calculations per second than a 32-bit processor.Windows 95, 98, and XP are 32-bit operating systems and
Windows Vista, Windows 7, and Windows 8 are 64-bit.

A  64-bit machine can have a 32-bit or 64-bit operating systems installed on it whereas a 32-bit machine cannot have a 64-bit operating system installed.
Although it is possible for a 32-bit software to run on a 64-bit machine,a 64-bit software cannot run on a 32-bit machine.

How to find out whether a computer is running a 32-bit or 64-bit version of windows?
Right click My Computer and then click Properties.Under System,the system type will be available. 







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