Binary and Hexadecial Numbers

Binary numbers are the way computers store all data. Up until now you have probably used the numbers 0-9, these are called decimal. base 10 or denary numbers. In binary, there are only two numbers: 0 and 1. Each digit is called a "bit." You can think of each bit as a light switch. If it's off (0), there's no light, and if it's on (1), the light is on.

Computational thinking for digital technologies

At the end of this topic students will have had the opportunity to cover;

• understand that digital devices store data using just two states represented by binary digits PO3

• understand that digital devices represent data with binary digits and can detect errors in data storage and transmission PO4

• understand how computers store more complex types of data using binary digits PO5