If you've taken a close look at your computer keyboard, you may see horizontal bumps on the F and J keys. Here's what they signify, and how they're useful.
The small lines on the F and J keys help typists find the correct finger placement without looking. These raised bumps mark the "home row" position, where index fingers rest during touch typing. This ...
Typing rarely announces itself, yet it shadows almost everything you do on a screen. It shows up during rushed replies, ...