How does a computer work?

I am giving some information on the topic "How does a computer work?"
Computer does not do any work itself. It does any work on our direction according to the programme. Every programme needs data input to do its work. We send input data or programme to a computer by input means like keyboard, mouse, scanner etc.

Computer processor obeys our commands. The programme is written in the way that if a computer obeys it the work finishes.

When the programme is finished we send the output to out put means like screen or printer. We can see it there or prince it.

WE can safe them programme or our output for future use in Floppy disk or hard disk.

So know about the work of a computer and feel free from it.