Google built a machine to test the speediness of laptop trackpads
 

An unresponsive trackpad can ruin a laptop. But how do you test for that without having access to ready-made equipment? If you're Google, you build your own machine. The company's Chrome OS team has created the Quickstep, a USB add-on that uses a...

http://www.engadget.com/2014/04/15/g...=rss_truncated