CBSE Computer Science sample paper3 Class XI 2010

http://www.cbseguess.com/-------------------------------------------------------------------------------------------------------www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com | www.dulife.com | www.magicsense.com Sample Paper – 2010 Class – XI Subject – Computer Science MM 70 TIME 3hrs Note All the questions are compulsory. Q1. Define Software and its types (2) Q2. What are the basic operations of a computer (2) Q3 Write two types of Micro Computers? (1) Q4 What is a Source Code? (1) Q5 Differentiate between the logical errors and runtime errors with one example each? (2) Q6 Write down the steps to be followed while running a program. (2) Q7 What is the use of comments in a program and its types? (2) Q8 What are the characteristics of a good program? (2) Q9 . An Error in a program is known as _________. (1) Q10 Draw the symbol used in the flow chart to read the values? (1) Q11 What is the difference between the „a‟ and “a”? (1) Q12 Write any four escape sequence characters? (1) Q13 What will be the result of the following two expressions if i=10 initially? 1)++i<=1 2)i++<=10 (2) Q14 Explain tokens in details with example. (3) Q15 Find errors if any in the following statements. (2) cout<<”X=”;X cin>>x;>>y; cout<<”Enter a number”; cin>>x; Q16 Define operators and its types? (4) Q17 Generate the series 0,1,1,2…N (4) http://www.cbseguess.com/-------------------------------------------------------------------------------------------------------www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com | www.dulife.com | www.magicsense.com Q18 What are Iteration Statements? Explain them in detail. (4) Q19 . Write a program to transpose the matrix of size M*N? (3) Q20 Explain various types of Constants with example. (3) Q21 Write a program to compare two strings without using functions. (3) Q22 Write a program to find the factorial of 1 to 10 number ? (3) Q23 What does booting of the system mean? (2) Q24 Why C++ is called object oriented language? (2) Q25 Write a program to input square matrix and interchange rows to column and column to rows. (4) Q26 How many times “hello” will be printed in the following code fragment: for (i=0; i<5; i++) for (j=0; j<4; j++) cout<< “hello”; (2) Q27 Explain procedural programming and modular programming (3) Q28 Write a program to reverse a number. (3) Q29. Find the syntax error(s), if any, in the following program: # include(iostream.h) void main ( ) int X,Y; cin>>X; for(Y=0,Y<10, Y++) if X= =Y cout<>Y; } (5) Paper Submitted by: Harpreet Singh Email : happymphilcs@rediffmail.com Ph No . : 09950213099 KENDRIYA VIDYALAYA JHALAWAR(RAJASTHAN)