That little red nub on a ThinkPad keyboard has been there since IBM launched the line in 1992. Here's what it actually does and why Lenovo kept it.

Everyone on earth takes a private vote by pressing a red or blue button. If more than 50% of people press the blue button, everyone survives. If less than 50% of people press the blue button, only ...

Add Yahoo as a preferred source to see more of our stories on Google. Since IBM launched the ThinkPad in 1992, the iconic laptop has carried a unique identity with it in the form of a small red ...

close-up of lenovo laptop keyboard with trackpoint visible - Stas Malyarevsky/Shutterstock Since IBM launched the ThinkPad in 1992, the iconic laptop has carried a ...