Difference between microkernel architecture and kernel architecture? Define distributed file system? Explain how it is implemented in Windows 2000?

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Manoj Kumar Vishwakarma

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Hi, you can get difference between them by below steps---- Kernel: kernel is the indispensable and therefore most important part of an operating system. Roughly, an operating system itself consists of two parts: the kernel space (privileged mode) and the user space (unprivileged mode). Without that,...
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Hi, you can get difference between them by below steps---- Kernel: kernel is the indispensable and therefore most important part of an operating system. Roughly, an operating system itself consists of two parts: the kernel space (privileged mode) and the user space (unprivileged mode). Without that, protection between the processes would be impossible. There are two different concepts of kernels: · monolithic kernel. · ?-kernel (micro kernel). Monolithic kernel: The older approach is the monolithic kernel, of which Unix, MS-DOS and the early Mac OS are typical represents of. It runs every basic system service like process and memory management, interrupt handling and I/O communication, file system, etc. in kernel space see Figure 1 (click here for Anatomy of Linux Kernel). It is constructed in a layered fashion, built up from the fundamental process management up to the interfaces to the rest of the operating system (libraries and on top of them the applications). The inclusion of all basic services in kernel space has three big drawbacks. · The kernel size increase. · Lack of extensibility. · The bad maintainability. read less
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A microkernel runs most of the operating system's background processes in user space,to make the operating system more modular and, therefore, easier to maintain. The kernel (also called nucleus) is a computer program that constitutes the central core of a computer's operating system. It has complete...
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A microkernel runs most of the operating system's background processes in user space,to make the operating system more modular and, therefore, easier to maintain. The kernel (also called nucleus) is a computer program that constitutes the central core of a computer's operating system. It has complete control over everything that occurs in the system. As such, it is the first program loaded on startup, and then manages the remainder of the startup, as well as input/output requests from software, translating them into data processing instructions for the central processing unit. It is also responsible for managing memory, and for managing and communicating with computing peripherals, like printers, speakers, etc. The kernel is a fundamental part of a modern computer's operating system. read less
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Compared to a typical kernel, a microkernel is compact, performing only the basic functions universal to all computers. Designed to be integrated into different operating systems, a microkernel works with OS-specific servers that provide higher level functions. This component-based structure improves...
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Compared to a typical kernel, a microkernel is compact, performing only the basic functions universal to all computers. Designed to be integrated into different operating systems, a microkernel works with OS-specific servers that provide higher level functions. This component-based structure improves a system's portability, but potentially at the expense of performance. Mach and its derivatives, the most prominent examples of the microkernel architecture, are the foundations of systems such as Tru64 Unix, the GNU Hurd, and Mac OS X. read less
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