The Computers: Software: Operating Systems: (Microkernel Operating Systems )

This section is on operating systems (OSs) which main trait is that they have a microkernel architecture. A microkernel is a minimal OS kernel providing only basic OS services (system calls), while other services (usually done by kernels) are done by user-space programs called servers. Usually, microkernels provide services such as address space (memory) management, thread management, and inter-process communication, but not networking, or display. Later extensions of microkernel designs led to new architectures such as nanokernels, exokernels, and hardware abstraction layers (HAL). Monolithic kernels (DOS, Linux, most Unix, Windows, etc.) go in their own section. Microkernel Operating Systems Software Computers.

In computer science, a microkernel (also known as μ-kernel ) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). (wikipedia)