Hey Everyone- Jeff here with the Windows Outreach Team. Here is a solid explanation Gizmodo provided in a recent article- ?To keep it simple, the whole bit thing (16-bit, 32-bit, 64-bit) refers to how much data the computer can keep track of, or talk to, at once, and that's what determines how much memory it can handle. A processor with 32-bit memory addresses can basically roll with 4GB of RAM. A 64-bit system can rock, on the other hand, 16 exabytes of RAM. That's 16.8 million terabytes. Of RAM. You're not going to get that kind of memory, not anytime soon; for now, from a user standpoint, this means there's simply no ceiling to memory expansion.?
I hope this helps explain what the difference is. Here is a link to the article too if you are interested: http://i.gizmodo.com/5076473/giz-explains-...me-about-64+bit
Cheers,
Jeff
Windows Outreach Team