What is "Jailbreak"

In the world of smart phones, we often hear the word "Jailbreak" or Jailbreak which is always associated with iPhone phones, so what is Jailbreak? What is the benefit of the "Jailbreak" for those who do to his phone?
Jailbreak is a process of downloading a specific program on your computer and transferring it to the iPhone until the restrictions on your iPhone are deleted.
The advantages of Jailbreak:
Operation Jailbreak means that users can download applications without having to shop, control ringtones, add modifications to the system, and even unplug the company connected to the device such as AT & T or Verizon, and go beyond that in some obsessed with the amendment to the phone.
Most of the iPhone's "Jailbreak" users use Cydia to download and install software for their devices. Cydia is an application that allows owners of decrypted devices to browse and load applications without restrictions.
The disadvantages of Jailbreak:
But there are many who prefer to stay away from the "Jailbreak" Jailbreak, once this process, your device is outside the guarantee provided by Apple or the companies that sold you, and programs that work Jailbreak for iPhone are all unlicensed programs and can damage your iPhone Completely.

According to statistics conducted in 2013, there are more than 14 million Apple iOS6 system has been breached by Jailbreak.
Types of Jailbreak:
1 - Untethered jailbreak: This is the case where Jailbreak is done for iPhone without the need for a computer, but once the phone is turned off and restarted, this is the most difficult and requires a lot of experience.

2-Tethered Jailbreak: This is the case where you will need a computer every time you want to run your iPhone, because it will need to restart the Jailbreak process in every operation. If you do not do this and run the iPhone alone, it will be shut down in the first run.

3 - Semi-tethered Jailbreak: In this case you will be able to run your iPhone or iPad without a computer, but not the applications of the device, not even Cydia programs, will be able to do basic things such as calls and messages, but if you use a computer to run the device will be Able to do anything.
How Jailbreak Works:

1. Initially you will need to select your device category
   
2. You will choose whether you have broken the device's limitations before or if it has not broken the restrictions
   
3. A simplified explanation of Jailbreak will be provided if you want to know what you will accept, or you can continue by choosing Ready To Jailbreak:
   
4. Special instructions will then be offered from the site, but paid. Or continue on your own
   
5. After that, you will determine the version of your device then the system that works on the device, then you will download the necessary program and follow the simple instructions mentioned in the site.