M2

WiFi has fast connection, you can stay connected as long there's a connection, it's better to browse videos, music, images as the connection is faster, also its quicker to download file with WiFi connection, although if you drive away from your house you won't be able to browse as there's not connection, you can find WiFi for free in certain places, or per monthly it would cost you £30.00 - £60.00.

3G is a phone service which you can browse at any time where ever you are, it's less slower than WiFi connection and it takes more time to open images, load videos and music or download any files,  You have to pay for 3G  sometimes it can be expensive depends on what the phone is. Monthly it would cost around from £11.00 to £75.00 depending on what phone you have.

M1

Protocols keep data safe by many ways, for example you could set a code or a password or even a lock on to your phone if you want to keep your phone safe and people not looking through you phone, setting a lock/password/code is very useful for your phone sometimes because if you loose your phone and someone finds won't able to get on to the phone. 

Another example is if you got an internet wi fi connection at home it most likely have a password written at back of the wi fi box for you to remember and keep it safe from other people trying to connect to it.

You can keep your Bluetooth safe by setting a password or by simply turning it off. 

P7

How to sent a contact through your iphone 

1. Turn on your the phone.

2. Second go on to your contacts and find the one you're looking for.

3. Third copy the number with the name and other details

4. Go on to your messages.

5. Click on to write a new message.

6. Paste the details.

7. Choose the person you want to send it to.

8. When you're done click send.