a) List the main tasks of an Operating System. b) Draw the main elements of a computer system. c) What is an interrupt? How it is generated? What is a trap?

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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a) List the main tasks of an Operating System.

b) Draw the main elements of a computer system.

c) What is an interrupt? How it is generated? What is a trap?

d) What is an interrupt vector?

e) What is a system call? Which types of system call do you know?

f) In a time-sharing environment, several users share the system simultaneously: How can we reach MM protection?

g) In a time-sharing environment, several users share the system simultaneously: How can we reach I/O protection?

h) Draw the diagram of 5 process states. What is the semantic of every state? How does a process move from one state to the other?

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