A computer operating system. The NT stands for New Technology. Often called NT for short, Windows NT is part of the Windows family of operating systems, but is quite different than some earlier versions of Windows in that it is not based on DOS, but instead is a whole new OS written from the ground up as a 32-bit system, which provides many improvements. NT has been out for a number of years and has found its niche in higher end workstations, especially where networking and security are major concerns.
