P6

The impact on young peoples society life mobile phone causes are it could damage your eye's for life or you would have to get a pair of glasses, you could also get addicted to it which means nothing else will matter to you but the phone and all your time will be spend on your phone, another reason is it could be too expensive so if your on contract and you text or talk to someone over the phone for hours you will get a high bill to pay back, next if your in your car driving and someone texts/phones you and while your answering them you might get interrupted and not pay any attention to the road you might cause or get in to a car crash and injury your self with an injury that could stay there for your life.

P5

I recommend an iphone 5 to make the delivery service more efficient. The reason i chose iphone 5 is because iphone 5 has great futures such as it has fast wifi connection, so you can connect and browse to get all the information you need if there's an connection, it also has a map app which is very useful because you will not get lost with the app map as it will show you all the shortcuts and where you are at. Iphone 5 is also useful because iphone 5 also has a notebook app where you can write all the needed information such as their address, how much they have to pay, this makes it even more useful because you won't have to carry lots of paper round with you when you can have all the information on your phone, and you will be even more safer knowing that you won't lose the papers because all the information you need will be in your phone.

P4

You can send photos from your smartphone to your laptop or computer through email if you have an account, you can also buy a USB cable but most cameras come with USB cables so if you have one you can use that and connect it to your phone on to your laptop to send all the photos you want on to your laptop or you can use fire wire to download the pictures on to your laptop and last if your laptop has Bluetooth and so does your phone you can use Bluetooth to transfer the photos you want.
The other way you can send photos is through WiFi if there's a connection, although if your not at home and there's no connection you can connect your phone to 3G so you can get some internet access to send the photos.

P3

WiFi - is a wireless internet you can connect online on your phone, tablet, laptop, ipod. You can be connected to WiFi as long as there's a connection. Most people connect to WiFi weather they'r at home or shops that has WiFi or even buses.

Bluetooth - is where you can send either messages, video messages, images, clips, to another phone device if the persons Bluetooth is turned on. You can send stuff through Bluetooth if the phones are close to each other as long as they'r Bluetooth is turned on. 

3G - is wireless data and voice communication and access to fast internet. You can call/text, high speed web, TV streaming, navigation/maps, global roaming. You can be connected to 3G where ever you are.