DipIETE – ET/CS (NEW SCHEME) - Code:
DE53/DC53
Subject: COMPUTER FUNDAMENTALS & C PROGRAMMING
Time: 3 Hours Max. Marks: 100
NOTE: There are 9 Questions in all.
· Question 1 is compulsory and
carries 20 marks. Answer to Q.1 must be written in the space provided for it in
the answer book supplied and nowhere else.
· Out of the remaining EIGHT
Questions answer any FIVE Questions, selecting TWO questions from part A and THREE
questions from part B. Each question carries 16 marks.
· Any required data not
explicitly given, may be suitably assumed and stated.
Q.1 Choose
the correct or the best alternative in the following: (2
10)
a. ASCII code use
______ bits per character.
(A) 6 (B) 10
(C) 8 (D) 12
b. OCR stands for
(A) Open
Character Reader (B) Optical Character Recognition
(C) Output
Computer Reader (D) None of the above
c. Who developed
the C language?
(A) Ken
thompson (B) Bjarne strou strup
(C) Dennis
Ritchie (D) Kernighan
d. The number of
bitwise operators in C is
(A) 4 (B) 5
(C) 6 (D) 7
e. What format is
used to print a character with the prints function?
(A)%5 (B) %C
(C) %Char (D) % 1C
f. Identify the
wrong construction
(A) for
(expr1;expr2;) (B) for (expr1;expr3)
(C) for (;expr;) (D) for (;;expr3)
g. Indentify the correct declaration
(A)int
a[10] [10]; (B) int a[10,10];
(C)int a
(10) (10); (D) int a (10,10);
h. The parameters
in a function call are
(A) Actual parameters (B) formal parameters
(C) dummy parameters (D) optional
i. Indentify the
correct declaration of pointer P1,P2
(A) int
P1,P2 (B) int *P1,P2
(C) int
P1,*P2; (D) int *P1,*P2
j. If fopen ( )
fails , it return
(A)-1 (B) NULL
(C) 1 (D) the filepointer
PART A
Answer any TWO questions. Each question
carries 16 marks.
Q.2 a. Draw the block of a computer. Explain the
function of each of the blocks. (8)
b. Convert the
following numbers into binary numbers. (4)
(i)
(ii) 
c. Convert
binary number 
into hexadecimal number (2)
d. What is the purpose of using a parity check
bit? (2)
Q.3 a. What
is the advantage of inkjet printer compared to dot matrix printer? What is its disadvantage? (4)
b. What is a speech output unit? What are its
applications? (4)
c. What is an assembly language for a computer?
What are the main disadvantages of an assembly language? (4)
d. What is an operating system? What are the
main functions of operating system? (4)
Q.4 a. What
is a microprocessor? Explain the internal structure of a microprocessor (6)
b. Differentiate
between RAM and ROM (3)
c. What
is an intranet? How is it different from internet? (3)
d. Write
a short note on Word Wide Web. (4)
PART B
Answer any THREE questions. Each question
carries 16 marks.
Q.5 a. State the features of ‘C’ language. Also describe the process of creating and
executing a C program under UNIX system. (4)
b. What
is a modulus operator? What are the restrictions of a modulus operator? (3)
c. Write
a program to convert an alphabet from uppercase to lowercase (3)
d. Write is the syntax of scanf( ) (3)
e. What
is the output of the following code? Main () (3)
{
int x = 20 , y = 35 ;
X = y++ + x++;
Y = ++y + ++x ;
printf (“%d %d \ n”, X , Y);
}
Q.6 a. Write
a program using if else to check whether an integer is odd or even. (4)
b. Give the
equivalent while structure and do while structure for the following loop
structure (4)
for (i = 0; i< 10; i++)
{
printf (“% d \ n” , i);
}
c. What is the
difference between break and continue? (4)
d. What
are to be replaced in ??? to get the sum of the series
sum(x) = 1+ (1+2) + (1+2+3) +…+ (1+2+3+4+….+x) in
the following code
sum
(int x)
{
int
i, term =1 , s = 1 ;
for
(i=2 ; i< = ??? ; i++)
{
???
s + = term
}
return s ;
}
Q.7 a. Define an array. How are arrays declared? (4)
b. Write a
program to reverse a string using the 
. (6)
c. Describe
the limitations of using getchar and
scanf for reading string? (3)
d. What will be
the output of the following segment? (3)
char s1[] = “New Delhi”;
char s2[] = “Bangalore”;
strcpy(s1, s2, s3);
printf(“%s, s1);
Q.8 a. Distinguish
between the following (6)
(i)
Formal and actual arguments
(ii) Function definition and Function declaration
b. Write a program to find the factorial of the given number using
recursion. (8)
c. What is the purpose of main( ) function (2)
Q.9 a. What is an array of pointer ? How is an array
of pointer declared. (3)
b. Write a program using pointers to compute the sum of all elements
store in an array (6)
c. What is a file? How is fopen( ) used? (5)
d. Describe the use and limitations of the
function getc and putc. (2)