B.com(CS) C&CF 2013

1^st sem. B.A/B.com./B.com.N/B.Sc. Examination, Nov./Dec. 2013

(Semester Scheme)

COMPUTER SCIENCE

Paper-1: Computer fundamental and c programming

       Time : 3 Hours                                 Max.Marks: 60

Instruction: All sections are compulsory

I.            Answer any ten questions. Each question carries one mark        (1*10=10)

1. ‘C’ is a middle level language? Justify.

2. What are unary operators?

3. What is purpose of ‘continue’ command?

4. Give the syntax of two dimensional array declarations?

5. What is a library function?

6. What is the use of dot operator in structure?

7. Give one example for universal gate.

8. Define a ‘BUS’.

9. What is the difference between analog and digital computers?

10.  Define instruction set

11.  Mention any two optical input devices.

12. What is opcode ?

Section-B

II. Answer any five questions. Each questions carries 3 Mark.   (5*3=15)

1. Explain structure of c program.

2. What are the difference between structure and union?

3. Give the difference between pre-increment and post-increment. Write a program illustrate post-increment.

4. Write a C program to compute sine series.

5. Explain any three addressing modes

6. Explain basis gates with truth table.

7. Convert the following :

a) (0.274)10 = (?)2

b) (0.1110)2= (?)10

c) (2.21)8 = (?)2

Section-C

III. Answer any five questions. Each questions carries 7 marks. (5*7=35)

1)  a) Briefly Explain different operators used in C

b) What do you mean by loop? Mention difference between while and do-while loop.    (4+3)

2)  a) Describe the characteristics and purpose of escape sequences.

b) What is nested … if statement? Illustrate with suitable program.   (4+3)

3) a) What is string

b) Write a program to calculate product of two matrix.      (3+4)

4) a) Explain call by value and call by reference.

b) Illustrate the array of structure with suitable program. (3+4)

5) a) What are the features of 2nd generation and 4th generation computer?

b) Subtract (20-27) using 1’s Complement. (4+3)

6) a) State any four basic laws of Boolean theorem.

b) Differentiate between low level language and high level language. (4+3)

7) a) Explain different types of registers.

b) Explain full adder with logical diagram. (4+3)