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So welcome to section eight,
this is the binary system and

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other number formats explained.

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Now just a bit of a disclaimer for

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this section, if you find it a little
rough going, don't be put off.

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This is actually a special section and

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really you don't need to understand it
fully to get the most out of python.

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So it's all about binary,

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it's gonna teach you what binary
is How to actually use binary.

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How to actually use addition, and
subtraction, et cetera with binary.

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And then we'll go into hexadecimal,
what that is as well as octal.

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And there will be a brief challenge
at the end to challenge you.

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So, have a go at it and
see how you get on, but

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again don't be too perturbed if you find
this particular section too complex.

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Things actually get easier
in the next section.

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But with that said, we felt,
both myself and Jean-Paul

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thought it was very important for you to
understand what binary is and how things

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work at a low level on a computer, and
that's why put this chapter together.

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So let's make a start