Tamil Nadu Open University (TNOU) 2009-1st Year B.C.A Computer Application .>>INTRODUCTION TO SYSTEM SOFTWARE>>E .>> - Question Paper

B.C.A. DEGREE EXAMINATION
JUNE 2009.

First Year

INTRODUCTION TO SYSTEM SOFTWARE

Time : 3 hours Maximum marks : 75

PART A (5 5 = 25 marks)

Answer any FIVE questions.

1.         What is meant by Machine-Code? What are its disadvantages?

2.         What is an assembler? State and explain its functions.

3.         What is meant by multiprogramming?

4.         Define the term Medium-term schedules.

5.         Explain the following commands with this syntax :

             (a) man

             (b) is.

6.         What is a UNIX shell? Explain briefly.

7.         What are the two modes of security mechanism in UNIX? Explain briefly.

PART B (5 10 = 50 marks)

Answer any FIVE questions.

8.         What is meant by code optimization? Explain briefly.

9.         Bring out the classifications of system software with examples.

10.       Explain shortest job first of process management.

11.       Explain briefly file accessing methods.

12.       What is meant by Deadlock avoidance? Explain briefly.

13.       Explain Pipe lines in UNIX.

14.       Write short notes on :

             (a) Critical section

             (b) Programming tools.