An open source software is manipulated by many programmers since it is very free to modify and change it. How can they do this? If programmers use software and they think that there is something lacking, they go to the source code and change it. How come? Are they permitted? Yes because the source code is visible to them. The developers of many open source software intended to make it open do that people who are using it will benefit from it. Well, this is reasonable because the programmers created software not only for themselves but also to all computer users. Examples of open source software are Mozilla, Google, Linux, WordPress, VLC Player, Media Wiki and many more.
Propriety Software is software that does not allow any programmers to be manipulating it. The original programmers or developers of software have the right to touch the codes only. This is why it is called close source since the source codes of software are invisible so that only those who have authorities will do something on it. In case users would like to modify it, they have to contact the software operator for their demand. The disadvantage is that the software will not be used more efficient and effective as the open source. Examples of the close source software are: Adobe Reader and Photoshop, Microsoft Office, Google Earth, Opera and many more.
Of course, the differences would determine which software the customers are closed to. Base on records, customers prefer the open source since they will know how to manage the demands of the customers.