Programming ConceptsLesson 23Free preview

Binary Numbers

This lesson is part of Intro to Programming · All levels

Summary

This lesson is about binary numbers, a 2 system of numbers that uses only the digits 0 and 1. Each digit position represents a power multiplication of 2 so decimal numbers can be converted to binary and vice versa. The binary languages of the computer's native languages make their understanding important in computer science.

Key points

A 2-based binary uses only the digits 0 and 1.
The value of each position of the digit is 2 squares (1, 2, 4, 8, 16,...)
Decimal to binary: divide by 2 and then read the rest from below.
Binary to decimal: add the power of 2 to the position of 1

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