Lavalier

Hello, I am looking for a microphone for my pc. My pc has two ports (One for headphone and one for mic). What should I look into the microphone so that I know its compatible with my pc. Will a mic with a jack of 2 rings work on my pc?

I am currently on an extremely tight budget. The idea is to sell my Steam items and my laptop and buy a cheap trash laptop to run Linux on and get a good gaming rig. I already have a 25 inch monitor, keyboard, and a mouse. I will be playing F2P games and simple Source-based games on my PC. I...