"The internet is a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols." - Google dictionary
The internet is a way of communicating with others. It uses a variety of different ways to communicate such as TCP (Transmission Control Protocol) and IP.
Definitions of computer language
css: cascading style sheet.
Wan: Wide area network
WWW: World wide web
What are packages
Packages are little bits of information your receive tiny bits at a time. If you sent a photo to someone, and it was 200 packages. If along the way of it being sent a package was lost. A pixel on the screen wouldn't load or display properly.