COSC 4330                 QUIZ #1                      June 7, 1995


CLOSED BOOK.   You can have one sheet of notes.  Each question is
worth 20 points.

1.   What is the major function of timer interrupts?

2.   Which instructions should always be executed in privileged
     mode and why?

3.   What is the major disadvantage of the master/slave
     organization for multiprocessor operating systems?

4.   Which system events can bring a process:

     (a)  from the running state to the ready state?  (10 points)
      
     (b)  from the waiting state to the ready state?  (10 points)

5.   How can one single process execute several programs?

--IMPORTANT----IMPORTANT----IMPORTANT----IMPORTANT----IMPORTANT--
Please do not try to answer these questions by yourself BEFORE
having a clear idea of what's on the test for which you are
studying.

Materials covered in each test DO VARY from semester to semester
because the pace of the course can change, some materials are be
added and other deleted almost every semester.
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