Does anyone know what this is?

Posted by Deep_Cut_320@reddit | vintagecomputing | View on Reddit | 57 comments

Does anyone know what this is?

I have these vague memories of playing games on my parents’ computer in the early 2010s, and there was this thing on the bottom of the monitor that I could spin around with my finger. I remember really enjoying doing that, but I still don’t know what the thing was called, or what it was supposed to actually do. Could anyone fill me in about it?