Windows NT (New Technology) is a family of operating systems produced by Microsoft, the first version of which was released in 1993. Unlike earlier versions of Windows that relied on MS-DOS, NT was built from the ground up as a fully 32-bit (and later 64-bit) operating system designed for powerful workstations and servers.

• Stability (Preemptive Multitasking): The OS controls how much CPU time each application gets. If one program crashes, it doesn’t take down the entire system.
• Enhanced Security: It introduced the NTFS (NT File System), which allowed for individual file permissions and encryption, a huge leap over the older FAT system.
• Hardware Abstraction Layer (HAL): This layer hides hardware differences from the OS, making it easier to run the same software on different types of hardware.
• Scalability: Windows NT was designed to support multiple processors (Symmetric Multiprocessing), allowing it to handle very heavy workloads.