Bluetooth is a type of connection with different types of electrical wireless devices like a mobile phone which can send information like a picture, a video, a piece of writing or a song to another electrical wireless device. Nearly every mobile phone has Bluetooth and every phone has its own Bluetooth name and code but you can change the code and name into anything you like.

To send some sort of information using Bluetooth, then both electrical wireless devices need to have their Bluetooth turned on. Then the person sending the information clicks ‘send using Bluetooth’ and then you click onto the name of the phones Bluetooth and then click send and it would of sent to the other mobile phone.

A 4G Smart Phone is the fourth generation of mobile phone. You can do a lot of things on the 4G Smart phone than the first generation of mobile phone because all you could do on the 1G Smart phone is to text or call someone or play a game and most of them were in black and white.

Now the 4G Smart phone can let you do all sorts of things like go on the internet, download and listen to music, watch videos, change settings, download and play full games and of course text and call someone. Everything is fast on the 4G Smart phone and the screen is in high definition.

Most people who use their mobile phone for Internet and music and interacting with people then they should have a 4G Smart phone.

A 4G LTE is an easy wireless communication for high-speed data for mobile phones. The IPad 3 uses a 4G LTE because it has faster data and downloading speed which is up to 299.6 Mbit/s.

What is so brilliant about it is that it uses a High Definition voice which supports the entire bandwidth range from 20Hz to 20kHz.

A Firewall is a protection against the computer. It basically rejects any bad viruses or any unsafe sources.

It can be software based or hardware based so you can either connect it to the computer yourself or you can programme it into the computer.

There are different types of Firewall because it depends on where the communication is taking place. There is a Network Layer or Packet Filters, an Application-Layer, a Proxy, a Network Address Translation.

A Router is a special machine that allows the computer to use the internet without them having to have an Ethernet cable plugged into the computer. This also means that the person who is using the computer is safe from any wires that they can easily trip on.

If you are using a laptop and you move the laptop from the router (about 4 miles) then the internet connection will be lost and you have to go back to the router to get the internet connection back.