Modern Operating Systems,4th Edition, is intended for introductory courses in Operating Systems in Computer Science, Computer Engineering, and Electrical Engineering programs. The widely anticipated revision of this worldwide best-seller incorporates the latest developments in operating systems (OS) technologies. The 4th Edition includes up-to-date materials on relevantOS. Tanenbaum also provides information on current research based on his experience as an operating systems researcher. The full text downloaded to your computer With eBooks you can: search for key concepts, words and phrases make highlights and notes as you study share your notes with friends eBooks are downloaded to your computer and accessible either offline through the Bookshelf (available as a free download), available online and also via the iPad and Android apps. Upon purchase, you'll gain instant access to this eBook. Time limit TheeBooks products do not have an expiry date. You will continue to access yourdigitalebookproducts whilst you have yourBookshelf installed.
CHAPTER 1 INTRODUCTION 1.1 WHAT IS AN OPERATING SYSTEM? 3 1.1.1 The Operating System as an Extended Machine 4 1.1.2 The Operating System as a Resource Manager 5 1.2 HISTORY OF OPERATING SYSTEMS 6 1.2.1 The First Generation (1945-55): Vacuum Tubes 7 1.2.2 The Second Generation (1955-65): Transistors and Batch Systems 8 1.2.3 The Third Generation (1965-1980): ICs and Multiprogramming 9 1.2.4 The Fourth Generation (1980-Present): Personal Computers 15 1.2.5 The Fifth Generation (1990-Present): Mobile Computers 19 1.3 COMPUTER HARDWARE REVIEW 20 1.3.1 Processors 21 1.3.2 Memory 24 1.3.3 Disks 27 1.3.4 I/O Devices 28 1.3.5 Buses 32 1.3.6 Booting the Computer 34 1.4 THE OPERATING SYSTEM ZOO 35 1.4.1 Mainframe Operating Systems 35 1.4.2 Server Operating Systems 35 1.4.3 Multiprocessor Operating Systems 36 1.4.4 Personal Computer Operating Systems 36 1.4.5 Handheld Computer Operating Systems 36 1.4.6 Embedded Operating Systems. 37 1.4.7 Sensor-Node Operating Systems 37 1.4.8 Real-Time Operating Systems 37 1.4.9 Smart Card Operating Systems 38 1.5 OPERATING SYSTEM CONCEPTS 38 1.5.1 Processes 39 1.5.2 Address Spaces 41 1.5.3 Files 41 1.5.4 Input/Output 45 1.5.5 Protection 45 1.5.6 The Shell 45 1.5.7 Ontogeny Recapitulates Phylogeny 47 1.6 SYSTEM CALLS 50 1.6.1 System Calls for Process Management 53 1.6.2 System Calls for File Management 56 1.6.3 System Calls for Directory Management 57 1.6.4 Miscellaneous System Calls 59 1.6.5 The Windows Win32 API 60 1.7 OPERATING SYSTEM STRUCTURE 62 1.7.1 Monolithic Systems 63 1.7.2 Layered Systems 64 1.7.3 Microkernels 65 1.7.4 Client-Server Model 68 1.7.5 Virtual Machines 69 1.7.6 Exokernels 73 1.8 THE WORLD ACCORDING TO C 73 1.8.1 The C Language 73 1.8.2 Header Files 74 1.8.3 Large Programming Projects 75 1.8.4 The Model of Run Time 76 1.9 RESEARCH ON OPERATING SYSTEMS 77 1.10 OUTLINE OF THE REST OF THIS BOOK 78 1.11 METRIC UNITS 79 1.12 SUMMARY 80 CHAPTER 2 PROCESSES AND THREADS 2.1 PROCESSES 85 2.1.1 The Process Model 86 2.1.2 Process Creation 88 2.1.3 Process Termination 90 2.1.4 Process Hierarchies 91 2.1.5 Process States 92 2.1.6 Implementation of Processes 94 2.1.7 Modeling Multiprogramming 95 2.2 THREADS 97 2.2.1 Thread Usage 97 2.2.2 The Classical Thread Model 102 2.2.3 POSIX Threads 106 2.2.4 Implementing Threads in User Space 108 2.2.5 Implementing Threads in the Kernel 111 2.2.6 Hybrid Implementations 112 2.2.7 Scheduler Activations 113 2.2.8 Pop-Up Threads 114 2.2.9 Making Single-Threaded Code Multithreaded 116 2.3 INTERPROCESS COMMUNICATION 119 2.3.1 Race Conditions 119 2.3.2 Critical Regions 121 2.3.3 Mutual Exclusion with Busy Waiting 122 2.3.4 Sleep and Wakeup 127 2.3.5 Semaphores 130 2.3.6 Mutexes 132 2.3.7 Monitors 137 2.3.8 Message Passing 144 2.3.9 Barriers 146 2.3.10 Avoiding Locks: Read-Copy-Update 148 2.4 SCHEDULING 149 2.4.1 Introduction to Scheduling 150 2.4.2 Scheduling in Batch Systems 156 2.4.3 Scheduling in Interactive Systems 158 2.4.4 Scheduling in Real-Time Systems 164 2.4.5 Policy Versus Mechanism 165 2.4.6 Thread Scheduling 166 2.5 CLASSICAL IPC PROBLEMS 167 2.5.1 The Dining Philosophers Problem 167 2.5.2 The Readers and Writers Problem 171 2.6 RESEARCH ON PROCESSES AND THREADS 172 2.7 SUMMARY 173 CHAPTER 3 MEMORY MANAGEMENT 3.1 NO MEMORY ABSTRACTION 182 3.2 A MEMORY ABSTRACTION: ADDRESS SPACES 185 3.2.1 The Notion of an Address Space 186 3.2.2 Swapping 187 3.2.3 Managing Free Memory 190 3.3 VIRTUAL MEMORY 194 3.3.1 Paging 195 3.3.2 Page Tables 198 3.3.3 Speeding Up Paging 201 3.3.4 Page Tables for Large Memories 205 3.4 PAGE REPLACEMENT ALGORITHMS 209 3.4.1 The Optimal Page Replacement Algorithm 209 3.4.2 The Not Recently Used Page Replacement Algorithm 210 3.4.3 The First-In, First-Out (FIFO) Page Replacement Algorithm 211 3.4.4 The Second-Chance Page Replacement Algorithm 212 3.4.5 The Clock Page Replacement Algorithm 212 3.4.6 The Least Recently Used (LRU) Page Replacement Algorithm 213 3.4.7 Simulating LRU in Software 214 3.4.8 The Working Set Page Replacement Algorithm 215 3.4.9 The WSClock Page Replacement Algorithm 219 3.4.10 Summary of Page Replacement Algorithms 221 3.5 DESIGN ISSUES FOR PAGING SYSTEMS 222 3.5.1 Local versus Global Allocation Policies 222 3.5.2 Load Control 225 3.5.3 Page Size 225 3.5.4 Separate Instruction and Data Spaces 227 3.5.5 Shared Pages 228 3.5.6 Shared Libraries 229 3.5.7 Mapped Files 231 3.5.8 Cleaning Policy 232 3.5.9 Virtual Memory Interface 232 3.6 IMPLEMENTATION ISSUES 233 3.6.1 Operating System Involvement with Paging 233 3.6.2 Page Fault Handling 234 3.6.3 Instruction Backup 235 3.6.4 Locking Pages in Memory 237 3.6.5 Backing Store 237 3.6.6 Separation of Policy and Mechanism 239 3.7 SEGMENTATION 240 3.7.1 Implementation of Pure Segmentation 243 3.7.2 Segmentation with Paging: MULTICS 243 3.7.3 Segmentation with Paging: The Intel x86 247 3.8 RESEARCH ON MEMORY MANAGEMENT 252 3.9 SUMMARY 253 CHAPTER 4 FILE SYSTEMS 4.1 FILES 4.1.1 File Naming 4.1.2 File Structure 4.1.3 File Types 4.1.4 File Access 4.1.5 File Attributes 4.1.6 File Operations 4.1.7 An Example Program Using File-System Calls 4.2 DIRECTORIES 4.2.1 Single-Level Directory Systems 4.2.2 Hierarchical Directory Systems 4.2.3 Path Names 4.2.4 Directory Operations 4.3 FILE SYSTEM IMPLEMENTATION 4.3.1 File-System Layout 4.3.2 Implementing Files 4.3.3 Implementing Directories 4.3.4 Shared Files 4.3.5 Log-Structured File Systems 4.3.6 Journaling File Systems 4.3.7 Virtual File Systems 4.4 FILE-SYSTEM MANAGEMENT AND OPTIMIZATION 4.4.1 Disk-Space Management 4.4.2 File-System Backups 4.4.3 File-System Consistency 4.4.4 File-System Performance 4.4.5 Defragmenting Disks 4.5 EXAMPLE FILE SYSTEMS 4.5.1 The MS-DOS File System 4.5.2 The UNIX V7 File System 4.5.3 CD-ROM File Systems 4.6 RESEARCH ON FILE SYSTEMS 4.7 SUMMARY CHAPTER 5 INPUT/OUTPUT 5.1 PRINCIPLES OF I/O HARDWARE 5.1.1 I/O Devices 5.1.2 Device Controllers 5.1.3 Memory-Mapped I/O 5.1.4 Direct Memory Access 5.1.5 Interrupts Revisited 5.2 PRINCIPLES OF I/O SOFTWARE 5.2.1 Goals of the I/O Software 5.2.2 Programmed I/O 5.2.3 Interrupt-Driven I/O 5.2.4 I/O Using DMA 5.3 I/O SOFTWARE LAYERS 5.3.1 Interrupt Handlers 5.3.2 Device Drivers 5.3.3 Device-Independent I/O Software 5.3.4 User-Space I/O Software 5.4 DISKS 5.4.1 Disk Hardware 5.4.2 Disk Formatting 5.4.3 Disk Arm Scheduling Algorithms 5.4.4 Error Handling 5.4.5 Stable Storage 5.5 CLOCKS 5.5.1 Clock Hardware 5.5.2 Clock Software 5.5.3 Soft Timers 5.6 USER INTERFACES: KEYBOARD, MOUSE, MONITOR 5.6.1 Input Software 5.6.2 Output Software 5.7 THIN CLIENTS 5.8 POWER MANAGEMENT 5.8.1 Hardware Issues 5.8.2 Operating System Issues 5.8.3 Application Program Issues 5.9 RESEARCH ON INPUT/OUTPUT 5.10 SUMMARY CHAPTER 6 DEADLOCKS 6.1 RESOURCES 6.1.1 Preemptable and Nonpreemptable Resources 6.1.2 Resource Acquisition 6.2 INTRODUCTION TO DEADLOCKS 6.2.1 Conditions for Resource Deadlocks 6.2.2 Deadlock Modeling 6.3 THE OSTRICH ALGORITHM 6.4 DEADLOCK DETECTION AND RECOVERY 6.4.1 Deadlock Detection with One Resource of Each Type 6.4.2 Deadlock Detection with Multiple Resources of Each Type 6.4.3 Recovery from Deadlock 6.5 DEADLOCK AVOIDANCE 6.5.1 Resource Trajectories 6.5.2 Safe and Unsafe States 6.5.3 The Banker's Algorithm for a Single Resource 6.5.4 The Banker's Algorithm for Multiple Resources 6.6 DEADLOCK PREVENTION 6.6.1 Attacking the Mutual Exclusion Condition 6.6.2 Attacking the Hold and Wait Condition 6.6.3 Attacking the No Preemption Condition 6.6.4 Attacking the Circular Wait Condition 6.7 OTHER ISSUES 6.7.1 Two-Phase Locking 6.7.2 Communication Deadlocks 6.7.3 Livelock 6.7.4 Starvation 6.8 RESEARCH ON DEADLOCKS 6.9 SUMMARY CHAPTER 7 VIRTUALIZATION AND THE CLOUD 7.1 HISTORY 7.2 REQUIREMENTS FOR VIRTUALIZATION 7.3 TYPE 1 AND TYPE 2 HYPERVISORS 7.4 TECHNIQUES FOR EFFICIENT VIRTUALIZATION 7.4.1 Virtualizing the Unvirtualizable 7.4.2 The Cost of Virtualization 7.5 ARE HYPERVISORS MICROKERNELS DONE RIGHT? 7.6 MEMORY VIRTUALIZATION 7.7 I/O VIRTUALIZATION 7.8 VIRTUAL APPLIANCES 7.9 VIRTUAL MACHINES ON MULTICORE CPUS 7.10 LICENSING ISSUES 7.11 CLOUDS 7.11.1 Clouds as a Service 7.11.2 Virtual Machine Migration 7.11.3 Checkpointing 7.12 CASE STUDY: VMWARE 7.12.1 The early history of VMware 7.12.2 VMware Workstation 7.12.3 Challenges in Bringing Virtualization to the x86 7.12.4 VMware Workstation: Solution Overview 7.12.5 The Evolution of VMware Workstation 7.12.6 ESX Server: VMware's type-1 hypervisor 7.13 RESEARCH ON VIRTUALIZATION AND THE CLOUD CHAPTER 8 MULTIPLE PROCESSOR SYSTEMS 8.1 MULTIPROCESSORS 8.1.1 Multiprocessor Hardware 8.1.2 Multiprocessor Operating System Types 8.1.3 Multiprocessor Synchronization 8.1.4 Multiprocessor Scheduling 8.2 MULTICOMPUTERS 8.2.1 Multicomputer Hardware 8.2.2 Low-Level Communication Software 8.2.3 User-Level Communication Software 8.2.4 Remote Procedure Call 8.2.5 Distributed Shared Memory 8.2.6 Multicomputer Scheduling 8.2.7 Load Balancing 8.3 DISTRIBUTED SYSTEMS 8.3.1 Network Hardware 8.3.2 Network Services and Protocols 8.3.3 Document-Based Middleware 8.3.4 File-System-Based Middleware 8.3.5 Object-Based Middleware 8.3.6 Coordination-Based Middleware 8.4 RESEARCH ON MULTIPLE PROCESSOR SYSTEMS 8.5 SUMMARY CHAPTER 9 SECURITY 9.1 THE SECURITY ENVIRONMENT 9.1.1 Threats 9.1.2 Attackers 9.2 OPERATING SYSTEMS SECURITY 9.2.1 Can We Build Secure Systems? 9.2.2 Trusted Computing Base 9.3 CONTROLLING ACCESS TO RESOURCES 9.3.1 Protection Domains 9.3.2 Access Control Lists 9.3.3 Capabilities 9.4 FORMAL MODELS OF SECURE SYSTEMS 9.4.1 Multilevel Security 9.4.2 Covert Channels 9.5 BASICS OF CRYPTOGRAPHY 9.5.1 Secret-Key Cryptography 9.5.2 Public-Key Cryptography 9.5.3 One-Way Functions 9.5.4 Digital Signatures 9.5.5 Trusted Platform Module 9.6 AUTHENTICATION 9.6.1 Authentication Using a Physical Object 9.6.2 Authentication Using Biometrics 9.7 EXPLOITING SOFTWARE 9.7.1 Buffer Overflow Attacks 9.7.2 Format String Attacks 9.7.3 Dangling Pointers 9.7.4 Null Pointer Dereference Attacks 9.7.5 Integer Overflow Attacks 9.7.6 Command Injection Attacks 9.7.7 Time of Check to Time of Use (TOCTOU) Attacks 9.8 INSIDER ATTACKS 9.8.1 Logic Bombs 9.8.2 Back Doors 9.8.3 Login Spoofing 9.9 MALWARE 9.9.1 Trojan Horses 9.9.2 Viruses 9.9.3 Worms 9.9.4 Spyware 9.9.5 Rootkits 9.10 DEFENSES 9.10.1 Firewalls 9.10.2 Antivirus and Anti-Antivirus Techniques 9.10.3 Code Signing 9.10.4 Jailing 9.10.5 Model-Based Intrusion Detection 9.10.6 Encapsulating Mobile Code 9.10.7 Java Security 9.11 RESEARCH ON SECURITY 9.12 SUMMARY CHAPTER 10 CASE STUDY 1: UNIX, LINUX, AND ANDROID 10.1 HISTORY OF UNIX AND LINUX 10.1.1 UNICS 10.1.2 PDP-11 UNIX 10.1.3 Portable UNIX 10.1.4 Berkeley UNIX 10.1.5 Standard UNIX 10.1.6 MINIX 10.1.7 Linux 10.2 OVERVIEW OF LINUX 10.2.1 Linux Goals 10.2.2 Interfaces to Linux 10.2.3 The Shell 10.2.4 Linux Utility Programs 10.2.5 Kernel Structure 10.3 PROCESSES IN LINUX 10.3.1 Fundamental Concepts 10.3.2 Process Management System Calls in Linux 10.3.3 Implementation of Processes and Threads in Linux 10.3.4 Scheduling in Linux 10.3.5 Booting Linux 10.4 MEMORY MANAGEMENT IN LINUX 10.4.1 Fundamental Concepts 10.4.2 Memory Management System Calls in Linux 10.4.3 Implementation of Memory Management in Linux 10.4.4 Paging in Linux 10.5 INPUT/OUTPUT IN LINUX 10.5.1 Fundamental Concepts 10.5.2 Networking 10.5.3 Input/Output System Calls in Linux 10.5.4 Implementation of Input/Output in Linux 10.5.5 Modules in Linux 10.6 THE LINUX FILE SYSTEM 10.6.1 Fundamental Concepts 10.6.2 File System Calls in Linux 10.6.3 Implementation of the Linux File System 10.6.4 NFS: The Network File System 10.7 SECURITY IN LINUX 10.7.1 Fundamental Concepts 10.7.2 Security System Calls in Linux 10.7.3 Implementation of Security in Linux 10.8 ANDROID 10.9 SUMMARY CHAPTER 11 CASE STUDY 2: WINDOWS 8 11.1 HISTORY OF WINDOWS THROUGH WINDOWS 8.1 11.1.1 1980s: MS-DOS 11.1.2 1990s: MS-DOS-based Windows 11.1.3 2000s: NT-based Windows 11.1.4 Windows Vista 11.1.5 2010s: Modern Windows 11.2 PROGRAMMING WINDOWS 11.2.1 The Native NT Application Programming Interface 11.2.2 The Win32 Application Programming Interface 11.2.3 The Windows Registry 11.3 SYSTEM STRUCTURE 11.3.1 Operating System Structure 11.3.2 Booting Windows 11.3.3 Implementation of the Object Manager 11.3.4 Subsystems, DLLs, and User-Mode Services 11.4 PROCESSES AND THREADS IN WINDOWS 11.4.1 Fundamental Concepts 11.4.2 Job, Process, Thread, and Fiber Management API Calls 11.4.3 Implementation of Processes and Threads 11.5 MEMORY MANAGEMENT 11.5.1 Fundamental Concepts 11.5.2 Memory Management System Calls 11.5.3 Implementation of Memory Management 11.6 CACHING IN WINDOWS 11.7 INPUT/OUTPUT IN WINDOWS 11.7.1 Fundamental Concepts 11.7.2 Input/Output API Calls 11.7.3 Implementation of I/O 11.8 THE WINDOWS NT FILE SYSTEM 11.8.1 Fundamental Concepts 11.8.2 Implementation of the NT File System 11.9 WINDOWS POWER MANAGEMENT 11.10 SECURITY IN WINDOWS 8 11.10.1 Fundamental Concepts 11.10.2 Security API Calls 11.10.3 Implementation of Security 11.10.4 Security Mitigations 11.11 SUMMARY CHAPTER 13 OPERATING SYSTEM DESIGN 13.1 THE NATURE OF THE DESIGN PROBLEM 13.1.1 Goals 13.1.2 Why Is It Hard to Design an Operating System? 13.2 INTERFACE DESIGN 13.2.1 Guiding Principles 13.2.2 Paradigms 13.2.3 The System Call Interface 13.3 IMPLEMENTATION 13.3.1 System Structure 13.3.2 Mechanism versus Policy 13.3.3 Orthogonality 13.3.4 Naming 13.3.5 Binding Time 13.3.6 Static versus Dynamic Structures 13.3.7 Top-Down versus Bottom-Up Implementation 13.3.8 Useful Techniques 13.4 PERFORMANCE 13.4.1 Why Are Operating Systems Slow? 13.4.2 What Should Be Optimized? 13.4.3 Space-Time Trade-offs 13.4.4 Caching 13.4.5 Hints 13.4.6 Exploiting Locality 13.4.7 Optimize the Common Case 13.5 PROJECT MANAGEMENT 13.5.1 The Mythical Man Month 13.5.2 Team Structure 13.5.3 The Role of Experience 13.5.4 No Silver Bullet 13.6 TRENDS IN OPERATING SYSTEM DESIGN 13.6.1 Virtualization 13.6.2 Multicore Chips 13.6.3 Large Address Space Operating Systems 13.6.4 Networking 13.6.5 Parallel and Distributed Systems 13.6.6 Multimedia 13.6.7 Battery-Powered Computers 13.6.8 Embedded Systems 13.6.9 Sensor Nodes 13.7 SUMMARY CHAPTER 14 READING LIST AND BIBLIOGRAPHY 14.1 SUGGESTIONS FOR FURTHER READING 14.1.1 Introduction and General Works 14.1.2 Processes and Threads 14.1.3 Memory Management 14.1.4 Input/Output 14.1.5 File Systems 14.1.6 Deadlocks 14.1.7 Virtualization and the CLoud 14.1.8 Multiple Processor Systems 14.1.9 Security 14.1.10 UNIX, Linux, and Android 14.1.11 Windows 8 14.1.12 Design Principles 14.2 ALPHABETICAL BIBLIOGRAPHY
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