# CSER F-6 Digital Technologies: Foundations “Task 3: Data Representation”.

## What is it?

The binary number system is a base-2 number system. This means it only has two numbers: 0 and 1. All information in a computer (words, pictures, movies, sound) is stored and transmitted as sequences of bits, or binary digits. A bit is a single piece of data which can be thought of as either zero or one. Each binary number is made up of bits, for example, the number 1010 is made of 4 bits. When you have 8 bits altogether, this is known as a byte. A byte may look like the number 01000100 and in this case represents the letter ‘D’. https://www.digitaltechnologieshub.edu.au/teachers/topics/binary

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