What is a Binary Number? 

Binary System : Uses only 0 and 1 

Base-2: Binary is a base-2 numeral system.

Digital Data: Fundamental for computers.

Binary Digits: Called bits. 

0 and 1: Represent off and on. 

Computations: Enables calculations. 

Storage: Stores digital information.

Conversions: Convert binary to decimal. 

Applications: Used in programming and electronics. 

Summary: Binary is essential for digital technology.