Another buzz term comes in my mind, the Total Cost of Ownership (TCO). I can simply said it is to describe a cost to have something. You may find its definition in Google. But, the interesting part for me is this is the term we would find in Information Communication Technology (ICT), or some say Information Technology (IT), or we simply say something that computer related. The word was brought into my head few years ago when Microsoft made a FUD claimed FOSS-based solutions were costly. After the claim, several people try to justify it. I remember there were some even offered frameworks to compute TCO. Many methods even invented and fortunately some real experts defend the FOSS. But, seriously, how do you compute a TCO of a software? It even doesn't exists. How do you measure bytes inhibiting computer memory? Interestingly, you can compute it based on the how much other cost reduced and how the gain increased after the use of a software. In other words, TCO of a software is deter...