Ever wondered why only 'F' and 'J' have bumps on the keyboard; the reason is surprisingly smart

Tiny raised lines on the F and J keys, known as tactile markers, serve as crucial landmarks for touch typists. Patented in ...
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Why Do the 'F' And 'J' Keys on Keyboards Have Bumps on Them? Who Invented It? Check Here

Ever noticed the tiny bumps on the F and J keys of your keyboard? They're not there by accident. These small lines help your fingers find the correct position without needing to look. When typing, ...