The Internet and it's usage

If you look around, you will see the (a)   almost everywhere.

The internet is a ________ that connects millions of computer all over world.

The internet can not share information among computers.

Internet is used to collect (a)   from various websites of the world.

If you buy or sell something over the internet what is the name of that term?

One of the disadvantage of the computer is that it can spread -

Webpage contains informations only in text format.

(a)   is a collection of related webpages.

Homepage can also be called webpage.

(a)   is the first page that opens when you open a website.