diff --git a/notes_solution.html b/notes_solution.html new file mode 100644 index 0000000..b72d946 --- /dev/null +++ b/notes_solution.html @@ -0,0 +1,72 @@ + + + + + A bit about the internet + + + + +

A bit about the internet

URL

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URL stands for Uniform Resource Locator. It contains several different parts, including: + +

the protocol: e.g. http, https, ftp
the host: e.g. www.facebook.com, www.bbc.co.uk
the path: e.g. /news/local or /john.smith.95

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DNS

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DNS stands for Domain Name System. You buy a domain name from a registrar (e.g. 123-reg, GoDaddy). They arrange for your server's IP address to be added next to the domain name on a DNS server, so that people can find your site. THis process can take a couple of days to spread out over the entire internet, as DNS servers take time to update one another using a 'gossiping' mechanism.

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Server-side vs. Client-side technologies

Client-side

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Client side technologies run in your web browser (e.g. Firefox, Google Chrome, or Internet Explorer). The three main client-side technologies are:

HTML
CSS
Javascript

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Server-side

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Server-side technologies run on the server. There are many more possibilities here.

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Technology	Description
Ruby on Rails	A web development framework built on the Ruby programming language.
Node.js	A web development framework built using javascript.
MySQL	A common open-source database.
php	A programming language used for the majority of dynamic sites in the early 2000s

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Here's a picture of a server:

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