i wanted to know the difference b/w xp64 bit and 32 bit  

Well Tushar , The terms 32-bit and 64-bit refer to the way a computer's processor ( CPU ), handles information.

The 32-bit and 64-bit versions of Windows OS are designed for use in computers with 32-bit or 64-bit processors, respectively.

The main difference between the two is :
A 64-bit computer can process twice as much information as a 32-bit computer, and can have significantly more random access memory (RAM). This makes a 64-bit computer a good choice if you're working with video, large database searches, or games and other programs that require complex calculations and a lot of memory.
A 32-bit computer works very well for most programs, however.
For example, spreadsheet programs, web browsers, and word processing programs will run at about the same speed on either a 32-bit or a 64-bit computer.

Many programs designed for a computer running a 32-bit version of Windows will work on a computer running 64-bit versions of Windows without any changes.
However, in some cases there might be differences in performance. If you have a 64-bit computer, it's best to run programs designed to run on a 64-bit computer.

Hope this would help you out.

For more information, Visit the source site :

http://windowshelp.microsoft.c om/Windows/en-US/Help/41531554-d5ef -4f2c-8fb9-149bdc5c8a701033.mspx

Answered by Alok Gupta , an ibibo Guru, at 4:03 PM on August 04, 2008

A bit is short for “binary digit.” It is basically how a computer stores and makes references to data, memory, etc. A bit can have a value of 1 or 0, that’s it. So binary code is streams of 1’s and 0’s, such as this random sequence 100100100111. These bits are also how your processor does calculations. By using 32 bits your processor can represent numbers from 0 to 4,294,967,295 while a 64-bit machine can represent numbers from 0 to 18,446,744,073,709,551,615. Obviously this means your computer can do math with larger numbers, and be more efficient with smaller numbers.

Answered by msg4hk , an ibibo Master, at 2:50 PM on August 04, 2008