Ever wonder why the “F” and “J” letters on your keyboard have ridges (small pertruding dashes)? Well I was Googling this very question earlier when I realized that this was somethign worth sharing.
The answer is quite simple actually… it’s not like I’ve uncovered the secret to immortality!
People who touch-type (type without looking) use these two ridges that can be found on the letters “F” and “J” to determine the position of their fingers on the keyboard. Touch typists put the index finger of their left hand on F and the index finger of their right hand on J before they type so they know where their fingers are at.
I think this will be the shortest post I post for a long long while. 
Huh! Very insightful! I’ve never wondered to be honest lol but now i’m so delighted that I know what they are for! Thanks for sharing!
I’ve been touch typing for about 10 years now. As you said, if you were a touch typist you’d know why those exist
I knew that a couple days ago ,, but i have been a touch typist for a couple of years !! i NEVER NEVER needed them !!
I like the blog Khaled
HAHAH..good observation..I didn’t know that!
I know.. I’ve never really noticed them until recently. But yeah, now we know what they’re for.