Who is the user of this software?

He is the most competent employee of our company.

Are you really not going to use this unused laptop?

He is an expert in electronics.

My electronic dictionary is very convenient.

I check my electronic mail every day.

An electron volt is a unit of energy.

I heat up the lunch box in the microwave oven.

Let's share information on the electronic bulletin board.

I read the electronic version of the newspaper every morning.