CBSE Class 11 Computer Science Sample Paper Set 20

Q.1 Answer the following

A 1 MB and 1GB is equitant to _________ and _________ 

B Data is a collection of 

i) Facts and entities ii relevant to user raw material

iii) Numbers of alphabets iv input material for computers.

C Explain briefly the major innovation of second generation Computers? 

D Name any two utility software’s? 

E What are the functions of operating system? 

F What is Multitasking? 

Q.2 Answer the Following

A Difference between procedural and Object oriented programming ? 

B What is polymorphism? Explain it? 

C Explain Logical errors? 

D Mention the steps you would follow while writing program? 

E Advantages and disadvantages of OOPS? 

Q.3. Answer the Following

A Name the header files to which the following belongs to 

i) sqrt()     ii) randomize()        iii) toupper()      iv) abs()

B Arrange the following datatypes from smallest to largest  Float, char, double, long double, long, short, int

C Evaluate following in C++ expression 

int a,mb=2,k=4;

a=mb*3/4+k/4+8-mb+5/8;

D Explain identifiers in C++ ? 

E How many times following loop executed 

int s=0,i=0

        do

           {

                s+=i;

           } while(i<5); 

Please refer to attached file for CBSE Class 11 Computer Science  Sample Paper Set T