Chapter Overview
This chapter explains how data is represented inside a computer using various number systems and encoding schemes. It introduces binary, decimal, octal, and hexadecimal number systems, and teaches how to convert between them. It also covers character encoding standards such as ASCII and Unicode, which are used to represent text in computers.
Important Keywords
- Binary Number System: Base-2 number system using digits 0 and 1.
- Decimal Number System: Base-10 number system using digits 0 to 9.
- Octal Number System: Base-8 number system using digits 0 to 7.
- Hexadecimal Number System: Base-16 number system using digits 0–9 and A–F.
- ASCII: American Standard Code for Information Interchange – uses 7 or 8 bits to represent characters.
- Unicode: A universal character encoding standard capable of representing characters from all writing systems.
Detailed Notes
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