unit 14 p3

Protocols

Wi-Fi   Wireless connection which allows you to use a wireless connection computers      

Edge is a wireless connection used for browsing internet and mobile phones  internet share pictures and send them 

3G is the third generation for mobile phones and allowing use of instant mobile broadband internet access and  sharing of data such as pictures and emails

4G fourth  generation it is a upgrade of 3G much faster not widely available

http hypertext transfer protocol

wi fi is protected by the owner of a house  where ever you go it needs a password some places offer and say its free to use to get people to stay like a café

edge is protected by a password protect known as a safe guard  to protect files and any ones private files

anywhere that you have access to internet needs a password or a safe guard to use it