On my laptops upright (QWERTY) there are both ridges on the F and J buttons, what are they for?

Oi adroit guy, when using English, you cannot end a sentence with a preposition.... and this goes for each you Americans.....So, Wherever are you fingers? is correct, Wherever are your fingers at? is like finishing your tea and not putting your cut and fork together. Sort it out. Report Abuse