What does HTML URL and http mean?

HTML stands for HyperText Markup Language. It's basically a coding language that web designers use to create web pages. URL means Uniform Resource Language. That's just fancy talk for a web address like www.google.com. HTTP means hypertext transfer protocol. That's just the type of address that the web page is coming from. With HTTP, you can basically only view the pages. There are a few different ones. With FTP, for example, you can upload and view other documents.