... System Calls 622.4 Types of System Calls 662.5 System Programs 742.6 Operating- System Design andImplementation 752.7 Operating- System Structure 782.8 Operating- System Debugging 862.9 Operating- System ... Open-Source Operating Systems 431.13 Summary 47Exercises 49Bibliographical Notes 52Chapter 2 Operating- System Structures2.1 Operating- System Services 552.2 User and Operating- System Interface ... 1 Introduction1.1 What Operating Systems Do 41.2 Computer -System Organization 71.3 Computer -System Architecture 121.4 Operating- System Structure 191.5 Operating- System Operations 211.6...
... andis the unit of work in a modern time-sharing system. Such a system consists of a collectionof processes: Operating- system processes executing system code and user processes executinguser code. ... errors possible on a system. 3.7 What is the purpose of system calls?Answer: System calls allow user-level processes to request services of the operating sys-tem.3.8 Using system calls, write ... morereliable operating system. 3.13 What is the main advantage for an operating- system designer of using a virtual-machinearchitecture? What is the main advantage for a user?Answer: The system is...