Web hosting is the one that offers you web server on which your site’s documents and files are saved.
The server serves as a place or room where your site lives on the internet.
As you live in a particular room in your house as your site lives in a particular server on the internet, hope you understand ?
Now, the cheapest web hosting type is shared hosting.
Shared hosting is the cheapest, easiest and most economical way to get your website started and connected to the Internet so you can start building it.