Hello

I am a new mac user and I was curious about terminal. What is it, and what does It do. I have only had the mac for a short time, maybe a few months, and I wanted to learn as much as the mac as much as possible. Their is nothing and no one like apple. Everything fits together like sliced bread and I love it. I'm trying to learn voiceover as much as possible on the mac but theirs so much to learn.