Encoding Schemes and Number System
Karnataka Board · Class 11 · Computer Science
Summary of Encoding Schemes and Number System for Karnataka Board Class 11 Computer Science. Key concepts, important points, and chapter overview.
Overview
This chapter explores how computers process and represent human-readable information through encoding schemes and different number systems. Since computers only understand binary language (0s and 1s), we need special methods to convert text, numbers, and symbols into a form that computers can proces
Key Concepts
The mechanism of converting data into
The mechanism of converting data into an equivalent cipher using specific codes. When you press a key on the keyboard, it gets mapped to a unique code
A 7
A 7-bit encoding scheme that can represent 128 different characters (2^7 = 128). It includes English letters (uppercase and lowercase), digits (0-9),
An 8
An 8-bit encoding scheme developed in India during the 1980s to support Indian languages. It can represent 256 characters (2^8 = 256) - retains all 12
A universal encoding standard that provides
A universal encoding standard that provides a unique number for every character of every written language in the world. Common encodings include UTF-8
The number system we use daily
The number system we use daily with 10 digits (0-9). Each position represents powers of 10. For example, 237 = 2×10² + 3×10¹ + 7×10⁰ = 200 + 30 + 7.
Learning Objectives
- Understand the concept of encoding and why it is necessary for computer systems
- Learn about different encoding schemes including ASCII, ISCII, and UNICODE
- Master the four number systems: decimal, binary, octal, and hexadecimal
- Develop skills to convert numbers between different number systems
- Apply knowledge of number systems in real-world computer applications
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Encoding Schemes and Number System covers several key topics that are frequently asked in Karnataka Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Sources & Official References
- Karnataka SSLC — kseeb.kar.nic.in
- Dept of Pre-University Education, Karnataka
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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