Chandler, perhaps? I attended a junior high school there which had this rickety chat system that functioned exactly like that. It was kinda functioning when I g

Chandler, perhaps? I attended a junior high school there which had this rickety chat system that functioned exactly like that. It was kinda functioning when I got there, but I took the app home and hacked it up considerably to be more stable, more colors for text, etc. Ended up leaving the updated source on the machines one day before I left the school for high school. Quite fun days, indeed.