Most personal computers today are 64-bit, and mobile devices are expected to begin using 64-bit CPUs in the 2014-2015 time frame. A 64-bit operating system will not work in a 32-bit computer ...

Starting in the 1990s, Windows NT ushered in a new architecture that has been carried forward more or less intact ever since. Current client version of Windows. Windows is a 64-bit OS and runs ...