I am reading a book about System Testing. It says the bugs will be duplicated across to the system and different project. I think this is because the code is re-using everywhere and sometime, we do some cut and paste. The worst case is the bug in the cut-paste code. As I remember, my thesis used a lot of cut-paste code too. I know this is not a good practice. That is better now. I am a C# programmer and learned to use component technologies. If there is in a component, it just needs to replace the DLL across projects. Yes, I know that is still a painful job.

I have not bought a PDA Phone at all.My friend asked me about this. That costs too much for me. Normally, it costs around AUD$1K. Moreover, this is not very useful for me. I am not a salesperson. I don't need to track my schedule. All I need that makes call and record my contact list.

Apple II History
http://en.wikipedia.org/wiki/Apple_II_series

Please read BBC World http://news.bbc.co.uk/2/hi/technology/6908946.stm

One Laptop per Child, they are building a USD$100 Laptop. They are aiming to provide a laptop to some third wold countries.