Cool_boy_men

Hey, I would like to make a player count system, to know how many players visited my base, shop. I have some idea's, but not sure how to do it. So far this is what I'm trying to do: use a tripwire on an adapter connected to the computer. My idea was that when the redstone signal turns true, it should add +1 to a count program or something. Can anyone help my with the code? So far I only have only the setup, no code yet. Here is a picture if it would make it easier: