CBSE Class 11 Computer Revision Worksheet Set A

CBSE Class 11 Computer Worksheet - Revision (1)

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International Indian School, Riyadh

Class – XI I Term

Worksheet 1 Subject – Computer Science


What is an operating system? What are its functions?


What do you mean by utility software? Give one example.


What do you mean by Non-Pre emptive scheduling? Give examples


What do you meant by Pre emptive scheduling? Give examples.


What is meant by multiprogramming and multitasking?


Define device management.


Define file management.


What is a bus? How are they classified?


Convert (4A8C)16 to binary.


Convert 10010110101110 to hexadecimal.


Convert the following binary number to decimal

(a)10010 (b)101010


Convert the decimal no 84 to its binary equivalent.


Which character is automatically added to a string in C++?


What are the difference between a keyword and an identifier?


What is the input operator ”>>” and output operator “<<” called?


Write a program in C++ to accept marks in five subjects for a student and display the average mark.


Write a program in C++ to accept marks in five subjects for a student and display the average mark.


What is the difference between Runtime and Syntax errors?


What will be the character size of the following constants: ‘\a’, “\a”, “sachin\’s bat”.


What will be the character size of the following constants: ‘\a’, “\a”, “sachin\’s bat”.


What type of constants are the following: 14,011, 3.123, 0xA.


Given the following two definitions

Unsigned int u1=0, u2=7;

What is the result of each of the following expressions?

(a) u1&&u2 (b)u1||u2 (c)!u1 (d)!!u1


Given the following set of identifiers:

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