Information About Windows NT 3.1 (From Wikipedia) :Windows NT 3.1 is a 32-bit operating system developed by Microsoft. It constitutes the first operating system of the Windows NT family and was released on July 27, 1993. Although it is the first version in the NT line, the name was chosen as a brand extension of the similar Windows 3.1.
The architecture of Windows NT 3.1 was designed from scratch, and was originally intended to be a rewrite of the OS/2 operating system that Microsoft had co-developed with IBM; however, the popularity of Windows 3.0
resulted in a change to a more Windows-like architecture, a change which subsequently resulted in IBM discontinuing its partnership with Microsoft. The central design goals were portability to multiple processor architectures, as well as higher security and stability than the previous DOS-based operating systems. Windows NT 3.1 was released in a workstation variant, called just Windows NT 3.1, and a server variant called Windows NT 3.1 Advanced Server.
The operating system's success on the market was only limited, mostly due to the high system requirements for its time and the lack of 32-bit applications which used the capabilities of Windows NT 3.1. Nevertheless, the operating system laid the foundation for all future releases of the Windows NT line.