Operating Systems Concepts - Section 8 Multiple Questions and Answers.




16.All the time a computer is switched on, its operating system software has to stay in
A. main storage
B. primary storage
C. floppy disk
D. disk drive

17.Can you name of the major Operating System used in computers?
A. MS DOS
B. OS/2
C. UNIX
D. All of the above

18.Which of the following is not an advantage of multiprogramming?
A. increased throughput
B. shorter response time
C. decreased operating-system overhead
D. ability to assign priorities to jobs

19.Virtual Memory
A. is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
B. consists of those addresses that may be generated by a processor during execution of a computation.
C. is a method of allocating processor time.
D. allows multiple programs to reside in separate areas of core at the time.

20.In a magnetic disk, data is recorded in a set of concentric tracks which are subdivided into
A. periods
B. sectors
C. zones
D. groups

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