WEBVTT

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The beginnings of the internet
reach back to the 1960s.

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At first it meant that
computers talk to each other

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by identifying themselves with numbers.

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Every computer had a number
known as an IP number,

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and if you knew the computer’s number,

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you could send it a message
and someone on the other end would read it.

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As the number of computers grew,
this approach was considered impractical.

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It's hard to remember
such long numbers and who's who.

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Then somehow the people
who were developing the internet,

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came up with the idea of using domains.

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These are character strings,
simple and familiar, such as

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organisation names, surnames, first names,
etc., and it’s easier to remember them

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and also easier to access some
interlocutors and sources on the internet.

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And this is a domain system.

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Once you have domains,
computers still communicate

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via numbers and thus you need

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some sort of a system

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to map these domains
to numbers and vice versa.

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And that’s called a DNS system.