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这个单词出现了两次！！

发表于：2007-05-24 18:40:25 楼主

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（层次） of （有层次的）virtual machines. the study of computer organization focuses on this hierarchy（这里指系统还是层次）, 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.

发表于：2007-05-24 23:40:541楼得分:0

这是一本关于计算机的组织和体系结构的书.它重点是计算机的做用和> > > > .....我只能这么多,那为大师有完整的dedication 一下啊

发表于：2007-05-25 09:14:512楼得分:0

有点长

发表于：2007-05-30 20:10:593楼得分:0

this is a book about computer organization and architecture.
这是一本关于计算机组成和结构的书。

it focuses on the function and design of the various components necessary to process information digitally.
它着重关注信息数字化处理的各式必要部件的功能和设计。

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.
我们把计算机系统划分成一系列的层次，它从底层的硬件和处理开始到高层次软件这包括汇编和操作系统。

these levels constitute a hierarchy of virtual machines.
这些层构成了一个虚拟机的等级层次。

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.
学习计算机组成应该把精力集中在这些等级层次上，这本书告诉我们怎样划分层和各个层是怎样实现的。

the study of computer architecture focuses on the interface between hardware and software, and emphasizes the structure and behavior of the system.
学习计算机结构应该集中关注软件与硬件的接口，尤其是系统的架构和行为。

the majority of information contained in this textbook is devoted to computer hardware, and computer organization and architecture, and their relationship to software performance.
这本书所要传递的主要信息是计算机硬件、计算机组成和结构以及它们与软件执行的关系。

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