Computer Programming Software Terms, Glossary and Dictionary
W2K: Windows 2000
Windows 2000 (Win2K or W2K), part of the Microsoft Windows operating systems released in the year of 2000, is a preemptible and interruptible, graphical, business-oriented operating system that was designed to work with either uniprocessor or symmetric multi-processor (SMP) 32-bit Intel x86 computers. Windows 2000 comes in four versions: Professional, Server, Advanced Server, and Datacenter Server. Additionally, Microsoft offers Windows 2000 Advanced Server- Limited Edition, which runs on 64-bit Intel Itanium microprocessors. Windows 2000 is classified as a hybrid kernel operating system, and its architecture is divided into two modes: user mode and kernel mode. The kernel mode provides unrestricted access to system resources and facilitates the user mode, which is heavily restricted and designed for most applications.