Class 11 Computer Science — Chapter 2: ENCODING SCHEMES AND NUMBER SYSTEM
Free AI tutor + NCERT notes for Chapter 2: ENCODING SCHEMES AND NUMBER SYSTEM. 8 topics covered. Ask any question by voice or text in Hindi or English.
What you'll learn
- ▸Data Encoding Fundamentals
- ▸ASCII Encoding Scheme
- ▸ISCII Encoding Scheme
- ▸Unicode Standard
- ▸Introduction to Number Systems
- ▸Decimal Number System (Base-10)
- ▸Binary Number System (Base-2)
- ▸Octal and Hexadecimal Number Systems
Chapter Summary
--- PAGE 1 --- CHAPTER 2 ENCODING SCHEMES AND NUMBER SYSTEM 2.1 INTRODUCTION Have you ever thought how the keys on the computer keyboard that are in human recognisable form are interpreted by the computer system? This section briefly discusses text interpretation by the computer. We have learnt in the previous chapter that computer understands only binary language of 0s and 1s. Therefore, when a key on the keyboard is pressed, it is internally mapped to a unique code, which is further converted to binary. Example 2.1 When the key ‘A’ is pressed (Figure 2.1), it is internally mapped to a decimal value 65 (code value), which is then converted to its equivalent binary value for the computer to understand. “We owe a lot to the Indians, who taught us how to count, without which no worthwhil…
Practice Questions from this Chapter
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- Explain binary numbers simply. Get Solution →
- Compare ASCII and Unicode now. Get Solution →
- Decode this secret computer message. Get Solution →
- What is the primary language that a computer understands? Get Solution →
- What does ASCII stand for? Get Solution →
- How many unique characters can be represented by the initial 7-bit ASCII code? Get Solution →
- What is the base of the Decimal Number System? Get Solution →
- Which two digits are used in the Binary Number System? Get Solution →
Did you know?
- 💡 The number zero was invented in India over 1,500 years ago.
- 💡 Computers only understand two simple words: "on" and "off".
- 💡 Every emoji you see is a special coded character.
- 💡 Early computers were so big they filled entire rooms.
- 💡 Morse code uses just dots and dashes to send secret messages.
Frequently Asked Questions
How many topics are covered in this chapter?
This chapter covers 8 key topics: Data Encoding Fundamentals, ASCII Encoding Scheme, ISCII Encoding Scheme, Unicode Standard, Introduction to Number Systems, and more. The BrainWeave AI tutor explains each one with examples.
Is Chapter 2: ENCODING SCHEMES AND NUMBER SYSTEM important for board exams?
Class 11 is a foundation year. Mastering this chapter now will help you build strong fundamentals for the higher classes.
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