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Understanding Operating Systems “ I think there is a world market for maybe five computers.” — Thomas J. Watson (1874–1956; chairman of IBM 1949–1956)
What  is  an Operating System? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) Figure 1.1: Model  of a non - networked   operating   system
Operating System  Software (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) Figure 1.2: Subsystems managers at the base of a pyramid
Operating System  Software (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) ,[object Object],[object Object],[object Object],[object Object]
Operating System  Software (continued) Figure 1.3: Model  of a networked   operating   system
Machine Hardware ,[object Object],[object Object],[object Object],[object Object],[object Object]
Machine Hardware  (continued) Figure 1.4: Computer system hardware configuration
Machine Hardware  (continued) Table 1.1: Different platforms and operating systems
Types of Operating Systems  (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of Operating Systems  (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of Operating Systems  (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of Operating Systems  (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Current Operating Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
System Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
System Architecture  (continued) Figure 1.10: (a) Early operating systems; (b) & (c) Modern    object-oriented systems
Threads ,[object Object],[object Object],[object Object],[object Object],[object Object]
Multiprocessing Configurations ,[object Object],[object Object],[object Object],[object Object],[object Object]
Multiprocessing Configurations  (continued) Figure 1.11:  Symmetric multiprocessing   system    with five   processors
Multiprocessing Configurations  (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object]
Summary (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Summary (continued) ,[object Object],[object Object],[object Object]

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An Introduction to Operating Systems

  • 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
  • 23.
  • 24.
  • 25. Multiprocessing Configurations (continued) Figure 1.11: Symmetric multiprocessing system with five processors
  • 26.
  • 27.
  • 28.
  • 29.