Revision of Class IX Syllabus

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Class 10 Computer Applications Chapter 1
Revision of Class IX Syllabus
Important Questions

Presented here are significant queries pertaining to the class 10 Revision of Class IX Syllabus important questions and answers. These questions are thoughtfully constructed to assist students in revisiting and strengthening their understanding of essential concepts from the previous class. By engaging with various types of questions, students can solidify their grasp of fundamental topics, clarify uncertainties, and enhance their problem-solving abilities. This resource aims to fortify exam readiness, instil confidence, and refine skills essential for the ICSE Class 10 Computer Science Examination.

Introduction

The ‘Revision of Class IX Syllabus’ chapter in ICSE Class 10 Computer Science serves as a comprehensive review of fundamental concepts learned in the previous academic year. This chapter provides students with the opportunity to revisit and reinforce their understanding of essential topics from Class IX. Through this revision, students can consolidate their knowledge, address any gaps in comprehension, and prepare themselves effectively for the advanced concepts ahead in the curriculum. It acts as a bridge, facilitating a smooth transition to more advanced topics for solving ICSE class 10 computer important questions of Revision of Class IX Syllabus.

Class 10 Revision of Class IX Syllabus Important Questions and Answers

Q1. What is the type and value of the following expression? (Notice the integer division) – 4 + 1/2 + 2*–3 + 5.0
Options
(a) int -5
(b) double -4.5
(c) int -4
(d) double –5.0

Ans. (d) double –5.0
Explanation:
The execution goes on like this:
– 4 + 1/2 + 2*-3 + 5.0;
– 4 + 0 + -6 + 5.0; // integer division: 1/2 truncates .5
– 10 + 5.0; // higher type is double 5.0, so -10 is casted to double
– 5.0; // finally, double -5.0.

Q2. How many times ‘Hello’ is printed?
Public static void main(String args[])
{
for(i = 0;i<5;i++)
  {
System.out.println(“hello”);
break;
   }
}
Options
(a) 5
(b) 4
(c) 1
(d) 0

Ans. (a) 1

Explanation:
It is printed one time only because break; will terminate the current loop.

Q3. Rewrite the following loop using for loop :
while (true)
System.out.println(“*”)
Explanation:
for(int i = 0; ;i++)
  {
System.out.print(“*”);
  }
Q4. Evaluate the expression :
z = ++x * (y– –)–y
where, x = 20, y = 10, z;

Explanation:
z = ++x * (y– –)– y
= 21 * (10) – 9
= 210 – 9 = 201

Q5. Rewrite the following condition without using logical operators :
if (a > b | | a > c)
System.out.println(a);
Explanation:
if (a > b)
System.out.println(a);
if (a > c)
System.out.println(a);

ICSE Class 10 Computer Applications Chapter wise Important Questions

Chapter No.Chapter Name
Chapter 1Revision of Class IX Syllabus
Chapter 2Class as a Basis of all Computation
Chapter 3User - defined Methods
Chapter 4Constructors
Chapter 5Library classes
Chapter 6Encapsulation
Chapter 7Arrays
Chapter 8String handling

Conclusion

In conclusion, the ‘Revision of Class IX Syllabus’ chapter in ICSE Class 10 Computer Science serves as a pivotal review, consolidating fundamental concepts essential for the advanced curriculum. By revisiting and reinforcing these foundational topics, students lay a robust groundwork for their continued journey in computer science studies. If you are looking to further practice and enhance your understanding of the concepts discussed in the chapter, oswal.io provides a comprehensive set of class 10 Revision of Class IX Syllabus important questions and answers for understanding the concept in a better way.

Frequently Asked Questions

Ans: The chapter revisits fundamental concepts like data types, control structures, functions, arrays, and file handling, consolidating the core principles learned in Class IX.
Ans: Revisiting Class IX concepts helps reinforce foundational knowledge, ensuring a solid understanding before delving into more advanced topics. It aids in bridging gaps and building a strong base for upcoming lessons.
Ans: This chapter acts as a review, consolidating essential concepts from the previous year, providing a robust foundation for the more intricate concepts and applications in Class 10 Computer Science.
Ans: The chapter revisits topics such as data types, control structures, functions, arrays, and file handling, emphasizing their importance and relevance in computer science.
Ans: Utilizing practice exercises, solving problems, reviewing Class IX notes, and seeking additional resources like textbooks or online materials can aid in understanding and revising the concepts efficiently.