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[MUSIC]

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Hi, I'm Chris and
I'm a teacher here at Tree House.

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If you're here taking courses at Tree
House, chances are that eventually you'll

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want to make something and that thing
whether it's an iOS app Android app or

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web app with Java, Ruby, PHP,
Node.js, Python or what have you.

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This app will likely involve some
sort of internet connection.

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Maybe you're making a website for
your family's new cured meat business.

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And you want to establish a web
presence by communicating

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to potential customers in your region.

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Or maybe you've written the latest
animated gif library so that your future

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users can log in and share their craziest
animated cat gifs in their browsers.

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Or maybe you've just jammed
together a sweet IoS app

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with Swift that allows your
users minute by minute

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forecast data by connecting to
a remote weather data provider.

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In any of these cases,
you'll be communicating over the internet.

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Now I'm not gonna show you how
to code any of these apps.

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You can check out our extensive library
of programming courses to do that.

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What I will do in this course is help you
understand the language that's used to

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communicate over the internet, it's called
HTTP or Hyper Text Transfer Protocol.

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And it is the set of rules
that govern how two devices

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should communicate with each
other over the internet.