Cows is a simple puzzle. Four brown cows and four white cows have met in the middle of a field. The brown cows are going to the right, and the white cows are going to the left. They need to get past each other. The puzzle is finished when all the brown cows get to the right, and all the white cows get to the left.
GeekStat tells you stuff about your device. Use GeekStat to get at information such as: your device's unique ID, the IP and MAC addresses of the networking interfaces, even the time the device was last booted, and how long it has been up.