y do the buttons of the keyboard are arranged randomly?

Answer 1

The QWERTY keyboard layout was devised and created in the 1860s by the creator of the first modern typewriter, Christopher Sholes, a newspaper editor who lived in Milwaukee. Originally, the characters on the typewriters he invented were arranged alphabetically, set on the end of a metal bar which struck the paper when its key was pressed. However, once an operator had learned to type at speed, the bars attached to letters that lay close together on the keyboard became entangled with one another, forcing the typist to manually unstick the typebars, and also frequently blotting the document. A business associate of Sholes, James Densmore, suggested splitting up keys for letters commonly used together to speed up typing by preventing common pairs of typebars from striking the platen at the same time and sticking together. The effect this rearrangement of letters had on maximum typing speed is a disputed issue. Some sources falsely assert that the QWERTY layout was designed to slow down typing speed to further reduce jamming. Other sources assert the rearrangement worked by separating common sequences of letters in English. Ostensibly, the hammers that were likely to be used in quick succession were less likely to interfere with each other.

The home row (ASDFGHJKL) of the QWERTY layout is thought to be a remnant of the old alphabetical layout that QWERTY replaced. QWERTY also attempted to alternate keys between hands, allowing one hand to move into position while the other hand strikes a key. This sped up both the original double-handed hunt-and-peck technique and the later touch typing technique; however, single-handed words such as stewardesses, lollipop and monopoly show flaws in the alternation.

An unfortunate consequence of the layout, for right-handed typists, is that many more words can be spelled using only the left hand. In fact, thousands of English words can be spelled using only the left hand, while only a couple of hundred words can be typed using only the right hand. This is helpful for left-handed people. It is also helpful for those on a computer where the right hand is primarily used for the mouse leaving the left hand as the primary hand to type with.

The first network email sent was sent in 1971 by Ray Tomlinson to another computer in his office. The message read QWERTYUIOP - the top row of the keyboard.

Answer 2

If you're asking why they're not in alphabetical order then the answer is simple:

The layout for a normal, modern day keyboard is based on the QWERTY layout created in 1867 for the typewriter. It was originally made to increase typing speed. The most common used letters (like r, t ,and e) are arranged towards the center of the keyboard for easier reach with the index and middle fingers and the uncommon letters (like z and x) are near the outside.

Answer 3

They are not arranged randomly. The arrangement was designed in the old days of mechanical typewriters, so that frequently used pairs of letters were kept apart to avoid them jamming when pressed at the same time.

Answer 4

They are not random - read this:

http://abckeyboard.co.uk/qwerty.htm

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