An operating system that is designed to work in a computer that processes 64 bits at a time. Most personal computers today are 64-bit, and mobile devices are expected to begin using 64-bit CPUs in ...
Windows is a 64-bit OS and runs only on 64-bit processors ... Windows 95 (1995) - MS Version 4.0 Windows 95 was the first 32-bit Windows operating system and a major upgrade from Windows 3.1 ...