Microkernels

2.7.3 Microkernels
The basic idea behind micro kernels is to remove all non-essential services from the kernel, and implement them as system applications instead, thereby making the kernel as small and efficient as possible.
Security and protection can be enhanced, as most services are performed in user mode, not kernel mode


http://www.cs.uic.edu/~jbell/CourseNotes/OperatingSystems/2_Structures.html