UNIT 14 D2 UPADATE

positive;

The protocol transmission i would use if i sent a photo would be Bluetooth the positive things are that the they would get it for free, they do not have to pay for it which is good for them. Also, it is very secure so no one can hack into it, you can create a password for it. You can switch Bluetooth on and off so no one can find you when its off and just switch it on when you want it to be.

negative;
Bluetooth can only be used in a certain distance which is bad because you have to be near the person if you wanted too send them a data file. Bluetooth is also very slow so it will take a while to transmit your data across to others.

another way you can send a photo is by sending it via text message. This works by sending it through your network such as 02, orange and 3.

UNIT 14 D2

positive;

The protocol transmission i would use if i sent a photo would be Bluetooth  the positive things are that the they would get it for free, they do not have to pay for it which is good for them. Also, it is very secure so no one can hack into it, you can create a password for it. You can switch Bluetooth on and off so no one can find you when its off and just switch it on when you want it to be.

negative;
Bluetooth can only be used in a certain distance which is bad because you have to be near the person if you wanted too send them a data file. Bluetooth is also very slow so it will take a while to transmit your data across to others.

another way you can send a photo is by sending it via text message. This works by sending it through your network such as 02, orange and 3.

UNIT 14 D1

I am comparing a blackberry and a nokia and the way that they are different .
What a blackberry can do
A blackberry has lots of things that you can do on it , there are lots of games that you can download and it is a very easy to use.
there are lots of things that you can go on like bbm , bbm is when you talk to people without if costing you money , on bbm you can send pictures and write things about you life it is very fun when you have a blackberry .
What a a nokia can do
A Nokia dosent do alot of things all you can do is put music on it and take photos and you can also text people and phone people there isn't lots about a Nokia they are not good at all but they are ideal for older people because all they do is phone family or text them and look at the time so they dont care .

What they both have in common
. take photos
. text people
. phone people
. take pictures

Ipad
On and iPad yo can take lots and lots of photos and you can also get on the internet and Facebook and all internet things like that . You can also download lots of games for free and you can also download music but music is not free you have to put money onto your iPad to play games

Ipod
on an ipod you can dowload games and you can make things on it . you can also go on the internet and go on social websites like twitter facebook and all the things like that , you can also do facetime and text people .

Similar
. facetime
. text pople
. download games
. download music

UNIT 14 M3

A mechanism that has been put in place to stop your human interaction is Skype. Skype excludes you from going out more, but if you own a webcam, you can actually speak face-to-face with people! If you have a microphone and a webcam then you can speak normally without typing, it's just like going out, but really you're not, as you can still see face-to-face!

A mechanism that has been put in place to improve data security is passwords and locating devices. If a thief managed to get hold of your phone and you have a password it will be very difficult for them to get in especially as with some phones it locks after a certain amount of tries this happens on blackberries and iPhones, you will then have too get it unlocked at a phone shop, which costs extra money. On the Iphone you can download tracking devices so if your phone gets lost you can track it from another phone and get it back!

To stop people using their phones whilst driving you have bluetooth so people can talk and answer the phone using voice activation.
To stop people downloading from dodgy sites, these sites have been blocked.

UNIT 14 M2

The difference between 3g and wifi is the speed of the network, WiFi is a lot faster than 3g. This is because you are closer to it so the signal is stronger. But with 3g you are always connected but it is kind of slow. WiFi is good because it allows you to access all areas of the internet a lot faster than 3g would allow you to. Although 3g is faster for emails. Another difference is that sending a picture message over 3g cost £1.50 whereas with WiFi it is free. WiFi is faster because you have to be near it to connect and is alot faster. 

UNIT 14 P1 how are are Bluetooth are protected and WIFI

Bluetooth is protected by a password where you have to connect with someone and the a password that comes up on booth phones that you have to put in. WiFi is like Bluetooth you have to have a private password to be connected to it. Most people have a password to stop people from hacking in and is also incripted.
Firewall: a technological barrier designed to prevent unauthorized or unwanted communications between computer networks or host.
Encrypting:using a secret code so as to be unintelligible to unauthorized parties.

UNIT 14 M1.....................

Unit 14

M1

How do devices and protocols keep data safe?

Most up to date devices can keep the majority of data safe, as they are very clever and they don't take a genius too work.
You can set your own password for security/protection.
On an iPhone you need a 4 digit code to unlock it that the owner can set. This can be very awkward and hard too guess as there are thousands of possibilities and the phone locks for 10+ minutes after ten wrong attempts.
On the iPhone you can download tracking devices and has a built in Satnav, this could be used too track your stolen phone. You can also have a password where it uses dots that you have to connect to each other.

On other phones like blackberries, you can set the password too whatever you like, including letters, so there will literally be billions upon billions of possibilities too keep your data safe.
You can also download tracking data and Satnav type apps on your blackberry too track a stolen phone etc!
Most Smartphones now-a-days can do things like this as they are clever devices!

There is also something called encryption; this is the process of sending a message privately so hackers and eavesdroppers cannot read it.

The difference between 3G and Wi-Fi I think Wi-Fi is faster because you have to be near it to be connected so it will have better connection and 3G I think will be slower because you could be anywhere and it might be a bit slower.

Bluethooth is also protected, because when you want to pair with someone you and them have to put a code in and keep your stuff safe. Wi-Fi is also safe because you also have to use a code to connect to that aswell.