程序员视角下的计算机系统详解:从基础到网络通信

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《计算机系统:程序员视角》是一本深入浅出的计算机组成和操作系统教材,作者是Randal E. Bryant和David R. O'Hallaron。本书于2001年11月发布,版权受到保护。该书从程序员的角度出发,探讨了计算机系统的各个方面,帮助读者理解核心概念和技术。 章节一,"Introduction",首先强调了信息在计算机中的基本单位——比特,并指出程序是通过其他程序转换成不同形式的。学习编译系统的工作原理有助于程序员更好地设计和优化代码。处理器负责读取和解释存储在内存中的指令,硬件组织对性能至关重要。例如,处理器架构、内存访问速度(如缓存)以及存储设备的层次结构都是关键要素。 在运行hello程序的示例中,读者可以了解到如何将程序指令与硬件交互,理解程序执行的基本流程。接着,章节提到缓存技术对于提升系统效率的重要性,它能加速数据访问速度。 操作系统是计算机的灵魂,负责管理硬件资源。它通过进程管理来调度任务,进程是程序在其执行上下文中的实例。书中介绍了线程的概念,它们是并发执行的轻量级进程,共同维护虚拟内存,提供更高效的资源分配。文件系统是操作系统中存储和组织数据的重要部分,使得数据持久化且易于访问。 此外,网络通信是现代系统不可或缺的一环,操作系统通过网络协议让系统与其他系统进行数据交换和通信。总结这一章后,读者对计算机系统的基础有了坚实的认识。 第二部分"Program Structure and Execution"进一步深入到程序的内部结构和执行过程。内容包括信息的表示和处理,如数据存储的不同形式,如十六进制、字节和数据大小,以及地址空间和字节顺序的概念。字符串的表示方法也是这部分的重点。 通过对这些基础知识点的讲解,这本书旨在帮助程序员建立全面的计算机系统认知,以便他们在设计、优化和调试软件时能够更加得心应手。无论是从底层硬件到上层应用,还是从单个系统到网络环境,都能在《计算机系统:程序员视角》中找到答案。
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经典计算机操作系统教材第三版,详细内容可见亚马逊。 https://www.amazon.com/Computer-Systems-Programmers-Perspective-Engineering/dp/0134123832/ref=sr_1_2?ie=UTF8&qid=1541476471&sr=8-2&keywords=computer+systems+a+programmer's+perspective Computer systems: A Programmer’s Perspective explains the underlying elements common among all computer systems and how they affect general application performance. Written from the programmer’s perspective, this book strives to teach readers how understanding basic elements of computer systems and executing real practice can lead them to create better programs. Spanning across computer science themes such as hardware architecture, the operating system, and systems software, the Third Edition serves as a comprehensive introduction to programming. This book strives to create programmers who understand all elements of computer systems and will be able to engage in any application of the field--from fixing faulty software, to writing more capable programs, to avoiding common flaws. It lays the groundwork for readers to delve into more intensive topics such as computer architecture, embedded systems, and cyber security. This book focuses on systems that execute an x86-64 machine code, and recommends that programmers have access to a Linux system for this course. Programmers should have basic familiarity with C or C++. Personalize Learning with MasteringEngineering MasteringEngineering is an online homework, tutorial, and assessment system, designed to improve results through personalized learning. This innovative online program emulates the instructor’s office hour environment, engaging and guiding students through engineering concepts with self-paced individualized coaching With a wide range of activities available, students can actively learn, understand, and retain even the most difficult concepts.