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In computer science, a microkernel (often abbreviated as μ-kernel) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). These mechanisms include low-level address space management, thread management, and inter-process communication (IPC).
microkernel: No No Yes Yes No Unix permissions: Call profiling, statistical profiling, Minix Debugger (mdb) No No ? NetBSD kernel: C: NetBSD, GNU/kNetBSD (Debian GNU/NetBSD), The NetBSD Project: ELF, others - platform dependent monolithic, anykernel using rump kernel architecture IPFilter, PF, NPF: Yes Yes Yes Xen, chroot: kauth, Unix ...
A microkernel that is designed for a specific platform or device is only ever going to have what it needs to operate. The microkernel approach consists of defining a simple abstraction over the hardware, with a set of primitives or system calls to implement minimal OS services such as memory management, multitasking, and inter-process ...
x86 microarchitectures Year Microarchitecture Pipeline stages Max clock (MHz) Process node 1978 8086 (8086, 8088) : 2 5 3000 nm : 1982 186 (80186, 80188) : 2 25 1982 286 (80286) : 3
A microkernel is a minimal computer operating system kernel which, in its purest form, provides no operating system services at all, only the mechanisms needed to implement such services, such as low-level address space management, thread management, and inter-process communication (IPC).
F9 microkernel, [35] a BSD-licensed L4 implementation, is dedicated to ARM Cortex-M processors for deeply embedded devices with memory protection. The NOVA OS Virtualization Architecture [ 36 ] is a research project with focus on constructing a secure and efficient virtualization environment [ 37 ] [ 38 ] with a small trusted computing base.
Due to its microkernel architecture QNX is also a distributed operating system. Dan Dodge and Peter van der Veen hold U.S. Patent 6,697,876: Distributed kernel operating system based on the QNX operating system's distributed processing features known commercially as Transparent Distributed Processing. This allows the QNX kernels on separate ...
MINIX is a Unix-like operating system based on a microkernel architecture, first released in 1987 and written by American-Dutch computer scientist Andrew S. Tanenbaum.It was designed as a clone of the Unix operating system [10] and one that could run on affordable, Intel 8086 based home computers; MINIX was targeted for use in classrooms by computer science students at universities.