User Agent

An application that browses the web.

Text Messaging

Communication by texting through phones.

Spam

To post or send inappropriate messages and comments.

Signature

Is a text that shows the users name.

Packets

A small amount of computer data that is being sent over a network.

Mailing List

A list of address that sent you an email.

Instant Messaging

An application that allows users to communicate like live chat.