Orgnisation : Council For Indian School Certificate Examinations
Exam :ICSE (Class X) Computer Science
Document type : Question Paper
Website : cisce.org
Download Sample/Model Question Papers :https://www.pdfquestion.in/uploads/cisce.org/5897-Computer%20Science.pdf
Computer Science Question Paper :
SECTION A (20 Marks)
Attempt all questions.
Question 1 :
Related : Council For Indian School Certificate Examinations ICSE Environmental Science Question Paper : www.pdfquestion.in/5894.html
(a) (i) Name universal gates.
(ii) State one advantage of batch processing. [2]
(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? [2]
(c) (i) Name the high level language which was developed by IBM.
(ii) Convert the number (1288)10 into an octal number, [2] (d) (i) Convert (101110)2 into a Hexadecimal number.
(ii) Multiply 1001011 by 1101. [2]
(e) Differentiate between Logical error and Execution error. [2]
Question 2 :
(a) Write an algorithm to find the sum of two numbers. [2]
(b) Name two conditional statements and explain. [2]
(c) Explain any two looping statements. [2]
(d) Write the full form of the following :
(i) ASCII
(ii) COBOL [2]
(e) How does a data file different from a program file? [2]
Section B : (60 Marks)
Attempt any four questions from this Section.
Each program should be written in such a way that it clearly depicts the logic of the problem. This should be achieved by using Mnemonic Names and Comments in the program. Students have the option of using BASIC or C++ for solving the given problems.
Question 3 :
Write a program in BASIC or C++ to calculate the interest and total amount to be paid by entering the amount of loan and the number of years, either by simple interest method or by compound interest method, as per the choice of user.
For Simple Interest,
Interest = (Amount * Rate * Number of Years) / 100 and Total amount = Amount + Interest
For Compound Interest,
Interest = Total amount – Amount. [15]
Question 4 :
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. [15]
Question 5 :
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. [15]
Question 6 :
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 [15]
Question 7 :
A cricket team has the following table of batting figures for a series of test matches for N number of players.
Player’s Name | Runs Scored | Innings | Times Not-out
Sachin 982 11 2
Dhoni 779 14 3
Robin 775 14 1
Write a program in BASIC or C++ to create a sequential file named AVG.DAT and do the following
(a) Store the given data.
(b) Read the figures to calculate and display the batting average of each player. Also, print the above format. [15]
Question 8 :
(a) Develop a program using user-defined function to convert a temperature from Fahrenheit scale Celsius scale using the formula C = (5/9) * (F – 32).
(b) Write a program in BASIC or C++ using FOR Loop to print any number in reverse order.
Hint : Number entered : 1 2 3 4 5
Reverse order : 5 4 3 2 1 [15]
Computer Applications Question Paper :
SECTION A : (40 Marks)
Attempt all questions :
(a) Name any four tokens of Java. [2]
(b) Give the difference between actual parameter and formal parameter. [2]
(c) What is an identifier- [2]
(d) Write an expression in Java for cos x + 2 2 a b . [2]
(e) What is the result produced by 2 – 10*3 + 100/11- Show the steps. [2]
(a) What is the difference between local variable and instance variable- [2]
(b) int x =20, y = 10, z; z = ++x * (y – –) – y – Show the steps. [2]
(c) What is the purpose of default in a switch- [2]
(d) Give the difference between linear search and binary search. [2]