[Jaren] is occasionally forgetful, and frequently wonders if he’s left the lights on in his server room. Not knowing if the lights have been left on drives him nuts until he returns to work the next ...

A datacenter that contains a number of servers without human operators in attendance. The room is dark and under lock and key, and the servers are controlled via the network from a remote location.

There are plenty of software applications and services available to monitor servers, alerting you if you have a problem. But none of them come close to the awesomeness of this traffic light server ...