What is Web Development?

Let’s Talks About Web Development and Web Developers. Web Developer is a programmer who develops websites or Applications.
Such as Chrome, internet explorer, Fire fox.
For example’I want to develop a website for company i need 1 or more developers’
As u r thinking that What skills we need to become a web developer.
Before thinking of skills we want to know how many types that web developers have?
For me there are two types of web developers.
1-Front end developer
2-Back end developer