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Encoding Schemes and Number System — Chapter Summary

CBSE · Class 11 · Computer Science

Summary of Encoding Schemes and Number System for CBSE Class 11 Computer Science. Part of the CBSE Class 11 Computer Science syllabus.

86 questions80 flashcards16 formulas & key relations5 concepts

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Overview

Encoding converts human-readable characters into coded forms that a computer can process. Computers understand only binary 0s and 1s, so keyboard input is first mapped to a unique code and then converted into binary. ASCII, ISCII, and UNICODE are major encoding schemes, while decimal, binary, octal,

Key Concepts

Encoding is the mechanism of converting

Encoding is the mechanism of converting data into an equivalent cipher using a specific code. A key pressed on the keyboard is mapped to a unique code

ASCII stands for American Standard Code

ASCII stands for American Standard Code for Information Interchange. It was developed in the early 1960s for standardising character representation. I

ISCII stands for Indian Script Code

ISCII stands for Indian Script Code for Information Interchange. It was developed in India during the mid 1980s for Indian languages. It uses 8 bits a

UNICODE is a standard developed

UNICODE is a standard developed to include all characters of every written language of the world. It gives a unique number to every character, regardl

The decimal number system is

The decimal number system is the base-10 positional number system used in daily life. It uses the digits 0 to 9. The value of each digit depends on it

Learning Objectives

  • Understand the idea of encoding and cipher
  • Know the purpose and features of ASCII, ISCII, and UNICODE
  • Identify the four number systems used in computers
  • Use positional value to represent numbers in different bases
  • Convert numbers between decimal, binary, octal, and hexadecimal systems

Frequently Asked Questions

What are the important topics in Encoding Schemes and Number System for CBSE Class 11 Computer Science?
Key topics in Encoding Schemes and Number System include Encoding Schemes, ASCII, ISCII, and Unicode Examples, Number Systems and Positional Value, Binary, Octal, and Hexadecimal Number Systems. Study these first, then practise questions on each for Class 11 exams.
How should I revise Encoding Schemes and Number System for Class 11 exams?
Learn the core ideas first, then work through the 86 practice questions on Encoding Schemes and Number System. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Encoding Schemes and Number System

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