What is Universal Software ?

There are a lot of software you can get all over the world. But it is some time so difficult to find out an appropriate software from anywhere of the world. I am trying here to add some software's link which is collected from all over the world. Any body can help me to do this. If you are the reader of my site and you have some link of free software, please leave a comment about informing these to me. I will add your link to me.