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)
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4. Operating System Software (continued) Figure 1.1: Model of a non - networked operating system
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6. Operating System Software (continued) Figure 1.2: Subsystems managers at the base of a pyramid
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12. Operating System Software (continued) Figure 1.3: Model of a networked operating system
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14. Machine Hardware (continued) Figure 1.4: Computer system hardware configuration
15. Machine Hardware (continued) Table 1.1: Different platforms and operating systems
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22. System Architecture (continued) Figure 1.10: (a) Early operating systems; (b) & (c) Modern object-oriented systems
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