why keys on a PC keyboard are not arranged in their alphabetical order ?

Answer 1

The letters are arranged in a way that makes it easy to type. The letters most used are positioned where they are the easiest to find. Which is why letters like Q and Z are at the end.
That is also why other languages have different lay-outs. Because they use different letters more frequently. That's why, for instance English keyboards have the QWERTY layout and some French have the AZERTY.

Answer 2

the layout was intended to place common two-letter combinations on opposite sides of the keyboard. On manual typewriters, each key is mechanically connected to a lever that has the reversed image of a letter on it. If a typist were to hit two keys on the same side of the keyboard in rapid succession, the second lever on its way up would hit the first on its way down, the keys would become stuck together, and the typist would have to stop typing and unstick the keys. The qwerty layout was a clever design that minimized this problem.

Answer 3

The keys are arranged same as an old typewriter to save the keys frequently used getting caught on each other when they were connected by bars on old typewriters. People have got used to the keybaord and it has stuck over the years.

It is in more detail here.
http://home.earthlink.net/~dcrehr/whyqwert.html

Answer 4

what a funy que
i am not sure but i think as you know it was arranged based on english language and to make it easy to write correctly it was arranged pay your attantion on keys when you write an artical you will feel for a word compleation
oh i am very bad in english getting trouble to say what i want

Answer 5

you need to rephrase your question! if you mean do they make a kybd that is in abc order, i havn't seen any! if you mean what keys is in abc order, none as i know of! hope this helps!