Bumps on the keyboard can help you find your way without looking
If you look at the keyboard on your computer or laptop right now, you will notice that the F and J keys have two small bumps on them. Have you ever wondered why they are there? Contrary to popular belief, tactile aids were not designed to assist blind persons with typing. The ridges found on the F and J buttons are here for another reason.
They are for the users’ convenience, as they can simply navigate the keyboard without having to look at it. Only these keys feature ridges to aid users in getting their hands into the best typing position. Try it, and you will find that using your keyboard is a lot easier, even if it takes some time to get used to.