QWERTY is the most common modern-day keyboard layout.
It has variants depending on countries: AZERTY in French, QWERTZ in German, etc.
Originally, it was designed to avoid mechanical collisions of typewriter hammers when typing fast, hence the strange layout.
Ranked in these QuestionsQuestion Ranking
You don't have to carry your own keyboard everywhere, QWERTY is pretty popular
Con Not made for typing on a keyboard
It was created before computers get popular.
this layout was created for typing machines, to prevent collision between character hammers and slowing down the typist.