What is internet?
Internet is the connection of many servers and computers, mobile phones etc which contain data to provide.
Many people seacrh thing on GOOGLE .
Google search every thing what u want u know who? I tell u firstly when he get any keword like movie
he connect with every server and seacrh result movie.
To use safe internet u should have an antivirus which can protect ur copmuter from ecternal threats like virus, hacking etc.