#Links used.

1. http://en.wikipedia.org/wiki/Mobile_device
2. http://en.wikipedia.org/wiki/Handheld_electronics
3. http://www.three.com.au/
4. http://www.danielcraig.com/indiana/classes/r521/ports/porttypes.html
5. http://en.wikipedia.org/wiki/Computer_port_(hardware)
6. http://en.wikipedia.org/wiki/Port
7. http://www.knowledgesutra.com/discuss/tmddil-types-ports.om
8. http://www.knowledgesutra.com/forums/topic/38817-different-types-of-ports/'

The social networking information was based of my own knowledge, as i am a teenager. I don't remeber the dates i used them, sorry about that.