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英文原版CSAPP 英文版 pdf A Tour of Computer Systems 1 1.1 Information Is Bits + Context 3 1.2 Programs Are Translated by Other Programs into Different Forms 4 1.3 It Pays to Understand How Compilation Systems Work 6 1.4 Processors Read and Interpret Instructions Stored in Memory 7 1.4.1 Hardware Organization of a System 7 1.4.2 Running the he llo Program 10 1.5 Caches Matter 12 1.6 Storage Devices Form a Hierarchy 13 1.7 The Operating System Manages the Hardware 14 1.7.1 Processes 16 1.7.2 Threads 17 1.7.3 Virtual Memory 17 1.7.4 Files 19 1.8 Systems Communicate with Other Systems Using Networks 20 1.9 Important Themes 21 1.9.1 Concurrency and Parallelism 21 1.9.2 The Importance of Abstractions in Computer Systems 24 1.10 Summary 25 Bibliographic Notes 26