About web hosting
What is a registrar?
A registrar is the organization to which you should refer in order to get a domain name for a certain period of time.
What is a domain name?
A domain name is the nice name assigned to an IP address in order to make it easily understandable and remindable by any users… or at least easier to remember than an IP address.
What is a web hosting company ?
A web hosting company is giving you an access to their servers in order to host things on it. Technically you could host your own server in your house, it is just that you probably don’t want to do this for many reasons (noise, security, electricity consumption…).