One of Google's most well kept secrets has always been the details of their data center. But Google has finally taken the cloak off of the secret bunkers and is showing off their facilities and some of the hardware.
It has always been known that Google's server farm was large. While Google still isn't saying how many servers they have, they are showing off the hardware behind it all. The server that they showed off was a 2U rackmount with two hard drives and eight memory slots and featured its own battery backup.
The data center itself is actually comprised of multiple standard 1AAA 40-foot shipping containers. Each of the containers hold 1160 servers and Google has figured out out to maximize both cooling and power efficiency. Apparenlty Google has been using the shipping containers since 2005.