Any 'Skill' does not come overnight. Technical skill development is a long process of understanding the actual processes going on, in almost all parts of world, wherever the computer is implanted. So, start with the computer itself.
First, look into the computer, physically. Various hardware parts in it. Understand what they do.
Then, look into the computer, virtually. Operating Systems and application software.
Now, connect the computer to a network and see what happens in the network.
