Making sense of the differences

This was the first time that i read the difference between the operating systems , Linux, Solaris and FreeBSD and could make sense. Thanks this to this lovely article that i could make sense of the different operating systems.
All look the same when u type ls or pwd in these operating systems.

Thanks once again.

A note on Graphs

Being a computer science student , i feel it is very very necessary to get your foundations right. Getting the basics in any field is the key to survival in that field.

I assume the notes i found are a good starting point for the Graph data structures which is not studied in depth. These server as a good starting point. Every practical mostly uses graphs. So this could be a good beginning.

Part 1

Part 2