Still More Confusion over 64-Bit Computing

Q: I imagine that my system must use a 64-bit processor to use 64-bit software, and with that the whole motherboard and all hardware must be 64-bit capable—is that so? Or can I install a 64-bit OS on any system, regardless of the hardware, processor, and motherboard?—Markco Velazquea

A: Yes, you need a 64-bit CPU to run any 64-bit software, including a 64-bit operating system. Put another way: If you want to run a 64-bit application, you’ll first need to install a 64-bit OS such as the 64-bit version of Windows Vista.

Complete articles : http://www.pcmag.com/article2/0,2817,2339745,00.asp?kc=PCRSS03129TX1K0000625

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