Using the computer

I use the computer in some classes. I am bad at using the computer. Until I entered the university, I had seldom used the computer. At the university we use the computer so many times, so my typing speed is faster than ever before. Today, we can't work without computers at places of work. I would like to be a good user of the computer and get a certification if I can. There are a lot of tools I don't know. Please teach me a variety of tools of the computer.

(91 words)