ICSE Class 10 2013 Question Paper Computer Science

ICSE Class 10 2013 Question Paper Computer Science. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

COMPUTER SCIENCE

(Two Hours)

Attempt all questions from Section A and any four questions from Section B. The intended marks for questions or parts of questions are given in brackets [ ].

Section-A

Question 1

(a) (i) Name universal gates.

    (ii) State one advantage of batch processing.

(b) (i) Represent the given Boolean function through a logic circuit diagram:

      F (X,Y, Z) = X . (Y Z+ Y Z)

(ii) What is the Boolean expression for X Y? 

(c) (i) Name the high level language which was developed by IBM.

(ii) Convert the number (1288)10 into an octal number, 

(d) (i) Convert (101110)2 into a Hexadecimal number.

(ii) Multiply 1001011 by 1101. 

(e) Differentiate between Logical error and Execution error. 

Question 2

(a) Write an algorithm to find the sum of two numbers. 

(b) Name two conditional statements and explain. 

(c) Explain any two looping statements.

(d) Write the full form of the following:

(i) ASCII

(ii) COBOL 

(e) How does a data file different from a program file? 

SECTION B

Question 3

Write a program in BASIC or C++ for the following:

(a) Input any word in lower case and display its output in uppercase.

(b) Total number of alphabets present in the word input.

For example, if

Lower case : snowy

Upper case: SNOWY

Total number of alphabets : 5.

Question 4

Write a program to store elements in an array of size 4 4 and perform the following. Find the sum of:

(a) each row and display

(b) each column and display

(c) all the elements of the array.

Question 5

Using BASIC or C++ program, read N numbers in a single dimensional array and calculate the highest and the least number along with their corresponding positions.

For example, if

INPUT : 8, 4, 5, 1, 7

OUTPUT,

Highest : 8 Position : 1

Lowest : 1 Position : 4 

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