The defining characteristic of Windows NT is its , which separates the system into two distinct operational modes to ensure stability:
This is where standard application programs and "environment subsystems" (like Win32, POSIX, and OS/2) reside. Processes in user mode have limited access to system resources and must request help from the kernel to perform critical tasks. windows nt tutorial
Windows NT introduced several technologies that are now industry standards: The defining characteristic of Windows NT is its
Manages core functions like memory, security (via the Security Reference Monitor), and I/O. security (via the Security Reference Monitor)