What is the difference between web developer and a programmer?

Question

I am little bit confused about a programmer and a web developer.

Answer 1

Almost all (but not all) web developers are programmers - but some only use HTML and CSS and do things like authoring content....so we can't call them programmers but they are web developer.
Aside from that - there is little (if any) practical difference between a web developer who writes software for the web and a programmer who writes applications for PC’s, mobile devices, super computer or other machines which are based on programming!!
The person who can write program we can call them programmers!!