This document provides an overview of operating systems, including the main operating systems in use such as Windows, Mac OS, Linux, iOS, and Android. It discusses the functions of an operating system like memory management, process management, handling input/output, and providing a user interface. The document was written by Waqas Ahmed and copyrighted by McGraw-Hill in 2006.

1. Operating system
McGraw-Hill Technology Education
Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

2. 8A-2

3. 8A-3

4. 8A-4

5. Operating systems in use
8A-5

6. 8A-6

7. 8A-7

8. 8A-8

9. 8A-9

10. 8A-10

11. 8A-11

12. 8A-12

13. 8A-13

14. • By
• Waqas Ahmed
Fb.com/vicky937
8A-14