WHY HEXADECIMAL?. Why bother with Hexadecimal? 1. Binary numbers are difficult for us to work with. 2. Hexadecimal can be used as “shorthand” for binary.

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Presentation transcript:

WHY HEXADECIMAL?

Why bother with Hexadecimal? 1. Binary numbers are difficult for us to work with. 2. Hexadecimal can be used as “shorthand” for binary (two hexadecimal digits represent one binary byte).

Hex Example: Computer Colours Any colour on a computer display can be made from: These shade values are often represented in hex. 256 shades of red 256 shades of green 256 shades of blue

Computer Colours The basic colours: FF = 255 red, 0 green, 0 blue 00 FF 00 = 0 red, 255 green, 0 blue FF = 0 red, 0 green, 255 blue

Colour Challenge! How much red, green & blue does this lavender colour contain? CC is a nice lavender colour!

Try it for yourself!