West Bengal Institute of Technology (WBIT) 2009-2nd Sem B.Tech Computer Science and Engineering Computer Science - Basic Computation & Principle of Computer Programming - Question Paper
CS/ Tech/SEM-2/C3-201/09 3 S
ENGINEERING St MANAGEMENT EXAMINATIONS, JUNE - 2009
Time : 3 Hours 1 I Full Marks : 70
GROUP-A ( Multiple Choice Type Questions )
1. Choose the correct alternatives for any ten of the following : 10x1 = 10
1) Which one of the following declaration is invalid ?
a) int 2A b) int A2A
c) intA2 d) intAA2. f 1
ii) Which one is the right output ? int x = 9 ;
if (10)
printf("%d", ++x);
else
printf("%d", x++);
a) 9 b) 10
c) 11 d) 12.
iii) Which one is the ilght output ?
char aj 50 ) = "computer" ; printiT'%d", strlen(a));
9 b) 10 .
Meftne int char niainO
int i = 65;
printf("si-.eof(l)=%d", sizeof(i));
a) ,;izcof(i)=l
b) sizeof(i)=2 d) sizeof(i)=8.
c) sizcof(i)=4
v) Which one is the light output ? inainO
int i = 5, j - 6, z;
printf("%d", t + ++J);
b) 10 d) 13.
a) 12 c) 11
In Hexadecimal number system, E is equivalen t to the number in decimal
vi)
b) 12 d) 15.
a] 10
c) 14 2321 ( 11/06 jT|
vli) What is the range of unsigned short Int ?
b) 0 to 255
n) 0 to 6553.1
d) none of these.
c) - 128 to 127
viii) Operating system is
b) System Software
a) Application Software
d) None of these.
Firmware
tx) ALU Is a part of
b) CPU d) Input device.
a) Memory
c) Output device
x) Member of xmion uses
a) different storage location b) same storage location
C
c) no storage location
d) none of these.
xi; V.'ltfit will be iiic value of i and m after executing the following code ?
int I ~ 1, m;
m = ( ++;
a) 6, 5 c) 5, 6
\2MUtTi<xT
b) 5, 5 d) 6, 6.
GROUP - B I, ( Short Answer Type Questions )
Answer any three of the following. 3x5-15
2. a) Convert ( 17-25) 10 to Binary. 1
b) What are 2's compliment numbers ? How do you use this system to peri m i ( 51 ) io - { 27 ) 10 in binaiy ? i + 3
c) What are the main differences between RAM & ROPvi ? 1
3. a) What is ternary operator ? Explain with example. 2 + 1
I
b) Write down the difference between compiler and interpreter. 3
4. a) Write down the r iain characteristics of algorithm. 2
b) Write a flowcnart to find the sum of the all integers ranging from 100 to 200 and divisible by both 2 and 3. 3
5. Briefly describe the function of different components of a conventional digit J computer with a suitable block diagram. 5
6. Write a C program to find out the G.C.D of two numbers. 5
GROUP -C ( Long Answer Type Qestioaa )
Answer any three of the following. 3x15 a 5
7. a) Differentiate between do-while" and "while'1 statements with suitable examo'es,
b) . Differentiate between "break and "continue" statements with examples. 4
c) Waat Is the difference between structure and union In C programra: ;g ? Supplement with examples. 4
d) Explain recursion with an example. 3
3. a) Write a C program to check whether a given nuAber is prime number or not. f
b) Write a progran/. to compute factorial of a number read from keyboard. 4
c) What are auto, external and static variables ? Explain their uses with, suitabl'.8 examples. 6
9. a) What is array of pointers ? Explain with example. 4 D) Explain call by value and call by reference with examples. a
c) Write a progr am in 0 to find the reail roots of a quadratic equation using defined function Qusa.(). '
10. a) Explain two iupui Exclusive OR gate using truth table. 2;
b) Why NAND gat e is called universal gate ? 2 /
cj Simplify' .
( A + B ), ( a.C } -! ( A. B + A .C ) . ( ~A + D ) i
d) Conv ere :
13 ( 2 AD ) 3 = ( ) r, iii ( 11100111101 }2 = ( ) 16 > " : *
03
iii) ( 25-125 j 10 - i ) 2. .. . ... .
321 ( 11/06 }
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