This is my own space and I am trying to migrate my old stuff from my blogs to this place. Inspiration to put it all here came from realisation that I used to get information from the internet because some one else contributed but when I looked at myself, I realised what did I contribute. People who are experts don't need help but people who are trying to learn things, who are new, certainly need some information as I used to search for many years. This is a kind of my personal wiki to keep things for my future reference and also to help new learners if they are looking for this information.