Forget learning English, Spanish or German, if you want to be friends with computers then you'll need to speak binary. Unfortunately you'd need millions of years to become completely fluent, but at least you can make a start by installing this simple clock app, which displays the time in binary format. Essentially just a bit of fun, the program shows you the current time coded in a series of lights which are either turned off or on. Once you've learned how the system works it'll be amusing for a while and will get you thinking about how the binary language works, but it's ultimately a pretty lame way of telling the time.