The F & J mystery
Unless you are a typist, you probably don’t know the purpose of these little, yet noticeable bumps on the F and J keys on a keyboard. These orientation keys are very helpful, especially for those who have mastered touch typing. These can be found in the home row and is where your fingers tend to rest when you’re not typing.
These subtle bumps are there to help users correctly position their right and left hand without having to look at the keyboard. Try to do it next time you have a keyboard in front, and without looking at your hands look for those bumps, then position your right and left index fingers on them, and once done you should be able to locate the rest keys in the keyboard. Once in that position, you should be able to locate the rest keys on the keyboard. A design hack that will help you type speedily.