Did You Ever Notice Keyboard 'F' And 'J' Keys Have Bumps

Have you ever noticed your keyboard and thought why keys 'F' have bumps?
You'll also find the same bump on key 'J' and the 'Down' key on your keyboard. It's not a manufacturing defect. In fact these keys serve a special purpose.
These key are designed in such a way that it helps you in positioning the fingers. This smartly improves the typing speed, as you are not really looking down while typing.
They also enable you to have a correct typing position. This feature was introduced in 2002 and has been followed since then.

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