文件名称:
The Essentials of Computer Organization and Architecture
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文件大小: 14mb
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上传时间: 2013-05-27
详细说明： This is a book about computer organization and architecture. It focuses on the function and design of the various components necessary to process information digitally. We present computing systems as a series of layers, starting with low-level hardware and progressing to higher-level software, including assemblers and operating systems. These levels constitute a hierarchy of virtual machines. The study of computer organization focuses on this hierarchy and the issues involved with how we partition the levels and how each level is implemented. The study of computer architecture focuses on the interface between hardware and software, and emphasizes the structure and behavior of the system. The majority of information contained in this textbook is devoted to computer hardware, and computer organization and architecture, and their relationship to software performance. Students invariably ask, “Why, if I am a computer science major, must I learn about computer hardware? Isn’t that for computer engineers? Why do I care what the inside of a computer looks like?” As computer users, we probably do not have to worry about this any more than we need to know what our car looks like under the hood in order to drive it. We can certainly write high-level language programs without understanding how these programs execute; we can use various application packages without understanding how they really work. But what happens when the program we have written needs to be faster and more efficient, or the application we are using doesn’t do precisely what we want? As computer scientists, we need a basic understanding of the computer system itself in order to rectify these problems ...展开收缩
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