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The AmigaOS Exec kernel was an early example, introduced in 1986 and used in a PC with relative commercial success. The lack of memory protection, considered in other respects a flaw, allowed this kernel to have very high message-passing performance because it did not need to copy data while exchanging messages between user-space programs. [9]
The poor performance of first-generation microkernels, such as Mach, led a number of developers to re-examine the entire microkernel concept in the mid-1990s. The asynchronous in-kernel-buffering process communication concept used in Mach turned out to be one of the main reasons for its poor performance. This induced developers of Mach-based ...
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).
Micro-Controller Operating Systems (MicroC/OS, stylized as μC/OS, or Micrium OS) is a real-time operating system (RTOS) designed by Jean J. Labrosse in 1991. It is a priority-based preemptive real-time kernel for microprocessors , written mostly in the programming language C .
MkLinux (for Microkernel Linux) is an open-source software computer operating system begun by the Open Software Foundation Research Institute [1] and Apple Computer [2] in February 1996, to port Linux to the PowerPC platform, and Macintosh computers.
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μT-Kernel is an open source real-time operating system (RTOS) designed for 16-and 8-bit microcontrollers. "μ” in the name stands for "micro" and pronounced as such. It is not pronounced as "mu". It is not pronounced as "mu".
K42 uses a microkernel architecture rather than the traditional monolithic kernel design. K42 consists of a small exception-handling component that serves as the microkernel, a fast inter-process communication (IPC) mechanism named protected procedure call (PPC), and servers for most other components of the operating system.