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.

Let's talk about something silly, but quite revealing: Would you press the red button or the blue button? A version of this puzzle goes viral on social media from time to time; this week, writer Tim ...

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 ...