1. Controlling A Computer
Chapter 2
Controlling A Computer

2. FIGURE 2.0.F01: The working insides of a computer.
© iStockphoto/Thinkstock © Péter Gudella/Dreamstime.com Courtesy of Dr. Richard Smith

3. FIGURE 2.0.F02: Older and newer ATA cables.
Courtesy of Dr. Richard Smith

4. FIGURE 2.0.F03: Executing a machine instruction in a computer.
Courtesy of Dr. Richard Smith, © iStockphoto/Thinkstock

5. FIGURE 2.0.F04: Separate control and data sections.

6. FIGURE 2.0.F05: Running two processes at once.
Used with permission from Microsoft.

7. FIGURE 2.0.F06: A partial list of processes displayed by the Unix ps command.
Courtesy of Dr. Richard Smith

8. FIGURE 2.0.F07: Data section for the finger service.

9. FIGURE 2.0.F08: Attacking a computer via the finger process.

10. FIGURE 2.0.F09: Buffer overflow in the finger service.

11. FIGURE 2.0.F10: Example of steganography.

12. FIGURE 2.0.F11: Two processes sharing a control section.

13. TABLE 2.0.T01: Access matrix for processes in Figure 2.11

14. FIGURE 2.0.F12: Two processes (a program and a device driver) share a data section.

15. TABLE 2.0.T02: Access matrix for Figure 2.12

16. FIGURE 2.0.F13: Categories of security controls.

17. TABLE 2.0.T03: Alice’s security controls

18. TABLE 2.0.T04: Security requirements for process protection

19. TABLE 2.0.T05: Security controls for process protection