Kernel (operating system) - WikipediaEnter your mobile number or email address below and we'll send you a link to download the free Kindle App. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. To get the free app, enter your mobile phone number. Would you like to tell us about a lower price? The fifth edition of Jane and Charles Holcombe's Survey of Operating Systems provides an introduction to the most widely used desktop operating systems including Windows Mac OS and Linux and includes a more visual approach with illustrations and an interactive approach.
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The kernel is a computer program that is the core of a computer's operating system , with complete control over everything in the system. It handles memory and peripherals like keyboards, monitors, printers, and speakers. The critical code of the kernel is usually loaded into a separate area of memory, which is protected from access by application programs or other, less critical parts of the operating system. The kernel performs its tasks, such as running processes, managing hardware devices such as the hard disk , and handling interrupts, in this protected kernel space. In contrast, application programs like browsers, word processors, or audio or video players use a separate area of memory, user space.
Emphasis is placed on understanding the crisp mathematical idea behind each algorithm, in a manner that is intuitive and rigorous without being unduly formal. To me, the highest value of the book is not the particular methods explained, but the good style and the way of thinking about programs that the book teaches. There are very few books that can actually teach good style, and this is probably one of the best. This book is a must read for anyone wishing to become a great programmer, not merely an average one. Applications to science, engineering, and industry are a key feature of the text.
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