1. Understanding Operating Systems “ I think there is a world market for maybe five computers.” — Thomas J. Watson (1874–1956; chairman of IBM 1949–1956)
2.
3.
4. Operating System Software (continued) Figure 1.1: Model of a non - networked operating system
5.
6. Operating System Software (continued) Figure 1.2: Subsystems managers at the base of a pyramid
7.
8.
9.
10.
11.
12. Operating System Software (continued) Figure 1.3: Model of a networked operating system
13.
14. Machine Hardware (continued) Figure 1.4: Computer system hardware configuration
15. Machine Hardware (continued) Table 1.1: Different platforms and operating systems
16.
17.
18.
19.
20.
21.
22. System Architecture (continued) Figure 1.10: (a) Early operating systems; (b) & (c) Modern object-oriented systems