Introduction to Computing (Question Paper)

Department of Computer Science 

& Engineering, University of Kalyani

CBCS-Part-I 2^nd Semester Examination, 2025

Subject: Introduction to Computing

Paper: MCS-GEC-201

Full marks=40 Time: 2 Hours

The figures in the right-hand margin 

indicate marks.

Candidates are required to give their answers 

in their own words as far as possible.

The notations follow their 

standard meanings.

Answer question number one and 

any three from rest.

1. Answer any five questions: (2 x 5 = 10)

(i) What do you mean by I-P-O cycle?

(ii) Realize the AND Gate by using 

universal gate.

(iii) What is the use of sizeof() operator?

(iv) What do you mean by 

‘Non-positional Number System’ 

and ‘Positinal Number System’?

(v) What do you mean by ‘Modulo Division’?

(vi) Write down the different types of modern 

computers based on shapes, sizes and

 capabilities. Also, classify modern 

computers based on working principle.

(vii) What do you mean by ‘scanf()’ and 

‘printf()’ function in C-Programming?

(viii) What do you mean by ‘BASE’ for a given 

number system? Propose a number

system having ‘BASE’ as (N+1).

2. (a) Solve the following. (i) (9A8C)₁₆ = ( ? )₈ 

(ii) (1010111101.1010111101)₂ = ( ? )₁₆

(iii) (29.25)₁₀ = ( ? )₂ (iv) (10101)₂ + (11101)₂ 

(v) The ASCII stands for ______

(b) What is the common disadvantage of the 

sign magnitude and 1’s complement

 representation of signed numbers? 

Express (-36)₁₀ as a 16 bit 2’s complement

 representation of a signed number. 

                                                            (5+(2+3))

3. (a) What do you mean by flowchart? 

Discuss the symbols used in drawing a 

flowchart.

(b) Draw a flowchart to find the roots of a 

quadratic equation ax² + bx + c = 0 

for real value of ‘x’ and a ≠ 0.

(c) Draw a flowchart to check whether the 

given integer is odd or even.      ((1+2)+4+3)

4. (a) What do you mean by C-Tokens? 

Write down the difference between keywords 

and identifiers.

(b) Find the value of ‘y’ in the following 

expression: 

(98) ₁₀ + (y) ₂ = (AB) ₁₆ + (20) ₈ .

(c) Write a C-Program to convert the number 

of days into years, months and days.

                                                                                       (4+2+4)

5. (a) Write a C-program to find the ‘x’ to the 

power ‘y’ (x^y) by using pow() function.

(b) Write a C-program for finding the 

largest from three positive integers a, b and c.

(c) Write a C-program to print the 

multiplication table from 1 x 1 to M x N.

                                                                                                        (2+4+4)

6. Short notes:

                                                                                                        (2 x 5)

Answer any two of the following:

a) Catalan Numbers.

b) Amicable Numbers.

c) Anagram String.

d) Magic Square Puzzle.