How to add a repository in Ubuntu

       Get to the title of the material, on this occasion I will explain how to add a "repository" in Ubuntu. Repository is a set of application packages or programs for an operating system (Linux) is used to bolster the performance of an application, program, etc. obtained from the server site mirror those packets.

         There are 2 ways to add the repository, namely:

1. Open the "Terminal"> Type:

     - sudo add-apt-repository ppa:AUTHOR_NAME / PACKAGE_NAME
     - sudo apt-get update
     - sudo apt-get install NAME OF APPLICATION

2. Open "System" > "Administration" > "Software Sources"

Then just click "Add" button. . .
....... Done .......