1) Briefly explain what an Operating System is.

2) What does it mean to say, "UNIX is a multi-user Operating System?"

3) What does it mean to say, "UNIX is a multi-tasking Operating System?"

4) What does it mean to say, "UNIX is a portable Operating System?"

5) Why is UNIX portable?

6) What are the three major components of any UNIX system (UNIX as an Operating System)?

7) What are the names of the two prominent versions of UNIX, according to our text book?

8) Who (names) of people who designed the original UNIX?

9) What are the two different ways in which a user can interact (interface/work) with UNIX?

10) What is a UNIX account?

11) What is the username of the most powerful account in a UNIX system (the superuser)?

12) What does it mean to "login" to UNIX? What steps do you usually follow for this procedure?

13) What is a Shell?

14) What is a login Shell?

15) What has to be done to change the terminal emulation if it is not correct?

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