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Principles of Operating Systems Sarabjit Kumar, Lovely Professional University
Notes Unit 11: Operating System Structure
CONTENTS
Objectives
Introduction
11.1 Operating System Structure
11.1.1 Hardware Abstraction Layer
11.1.2 Kernel Layer
11.1.3 Executive
11.1.4 Device Drivers
11.1.5 Implementation of Objects
11.1.6 Object Name Space
11.1.7 Environment Subsystems
11.2 Summary
11.3 Keywords
11.4 Review Questions
11.5 Further Readings
Objectives
After studying this unit, you will be able to:
• Explain operating system structure
• Discuss the hardware abstraction layer
• Explain kernel layer
• Explain executive
• Understand the device drivers
• Explain implementation of objects
• Discuss object name space
• Explain environment subsystems
326 LOVELY PROFESSIONAL UNIVERSITY
