Why keys in any standard keyboard are arranged in this manner? Specially the alphabets?
961683
WELL, MOSTLY ALL THE KEYBOARDS (EXCEPT SOME) ARE MANUFACTURED ON THE FORMAT OF 'QWERTY' WHICH IS THE INTERNATIONAL U.S STYLE KEYBORD (AS WE SEE ON THE STARTING ALPHABETS OF THE K.BOARD MOVING FROM LEFT TO RIGHT). THERE WAS A SCIENTIST NAMED DR. QWERTY WHO INVENTED THE DEVICE (i.e KEYBOARD) AS A MEDIUM TO COMMUNICATE BETWEEN A HUMAN AND A MACHINE . HENCE FROM THEN ALL THE KEYBOARDS WERE MANUFACTURED IN THE SAME U.S FORMAT (EXCEPT SOME) .                 "ROBIN"
628960
YOU SHOULD KEEP YOUR FIRST FOUR FINGERS ON THE A,S,D, AND F KEYS AND YOUR SECOND FOUR FINGERS ON THE J,K,L, AND SEMI-COLON KEYS....WITH YOUR THUMBS ON THE SPACE BAR....NOW IT HELPS TO MEMORIZE THE KEYS...WITH YOUR FINGERS ON THE ABOVE KEYS I MENTIONED, YOU CAN ACCESS ALL THE OTHER KEYS WITHOUT TAKING YOUR HANDS OFF THE KEYBOARD...I TOOK A KEYBOARDING CLASS WHEN I WAS IN HIGH SCHOOL....AND I HAVE NEVER FORGOT HOW TO TYPE USING THIS METHOD...IT'S BEEN ABOUT 8 YEARS SINCE I TOOK THE CLASS...YOU WILL GET THE HANG OF IT SOON ENOUGH...GOOD LUCK!
692381
THe keyboard for non english speaking countries are bilingual keys... meaning they look like ours, but they use the ALT key + the alpha key to create their character\n\nThis is the same for Spanish countries, and even in the UK where they have the Pound and Euro sign, rather than the $ sign.
889039
They are called special characters. They are created by holding down the "alt" key and entering a series of numbers. \n\nFor instance:\n\n Alt + 1 =☺\n Alt + 3 = ♥\n Alt + 4 = ♦\n Alt + 251 = √\n Alt + 0134 = †\n Alt + 0189 = ½
349135
it's actually very simple- it is in fact based on the removal of vowels to shorten the material being written.\n\n example:\nits actlly vry smpl- n fct bsd on rmvl o vwls 2 shrtn mtrl bng wrtn
316568
it is based on the usage of the english language and the percentage that each letter is used on average.  This is then put against the easyiness factor of where a key is located to be quickest to punch.
32567
Are to talking about the little line that's raised a little (if so there should be one on the 'J' key too)?  If you are, it's so you can feel whether or not your fingers are in the right place.  It reduces the need to look at the keyboad while typing (and I image would be extremely useful for blind people).  Incidently, on old Apple keyboards, there is a circular bump on 'D' and 'K' rather than a horizontal line bump on 'F' and 'J,' but at some point a few years back they changed it to match Microsoft keyboards so it would be easier to swtich back and forth between the two (if you can find an old Apple keyboard, try typing on it - it feels weirder than you might expect).
10678
In part for reasons of efficiency.  For them to use a keyboard such as the one you used when you typed the question, they would need to type four or five times the number of characters to same the same thing.\n\nDue to this, specialized keyboards have been developed to enhance the writing into pictograph, such as the Bicameral Keyboard Arrangement.  (see references below)\n\nEven notebook computers can be found with the Chinese enhanced keyboard.
902889
There is one on the J key, and are for touch typing.\nWhen the hands are at rest, ready to type, the two index fingers rest on these.\nYou can re centre your fingers, without looking.\nSame as a five on number pad, so you can use it touch typing, without looking, by working away from the centre.
743893
Sometimes there are hidden keys.\n\nTry [Shift] + F4  (should be F16)
716986
My typing teacher told us that everyone has some combination of letters they will always mess up, for some reason.  For myself, it's always the T and the H ... so my "the" looks like "hte".  It's apparently normal.
574926
They're not random.  The positions are based on different rules, depending on which keyboard layout you are using.  DVORAK keyboards, for example, are layed out such that the most common letters are directly under your fingers.  QWERTY keyboards, are layed out such that the mechanical keys on old typewriters don't hit each other as often when typing common words.\n\nThere are lot's of different layouts, for different purposes.  Choose one you that fits your purpose, and use it!
64962
ABSOLUTELY!!!  It is funny you ask that question, because I don't know what the keys are anymore.  If people ask me where a "key" is located anymore, you can watch me actually move my hands ( in the correct manner ) and then tell you where the key is ... my brain has not memorized the keyboard, but my fingers sure have ... :)
435133
Turn your keyboard upside down.
10459
Modern computer keyboards include a jumbled arrangement of letters. This arrangement is often referred to as "QWERTY" (pronounced kwer-tee) since that the order of the first six letter keys on the upper-left of the keyboard. \n\nQWERTY made its debut in 1872 on a device marketed as a typewriter by inventor Christopher Sholes. Some believe that the arrangement of letters was designed to slow typing speed in the effort to prevent jamming. It is generally believed, however, that the layout was designed to put common letter pairs on opposite sides of the keyboard thereby making typing easier. Alternative layouts have been presented, such as the Dvorak version, but despite claims of superiority, the QWERTY keyboard has survived. At this point, it seems that too many people have learned the layout and are not willing to relearn key locations even if improved efficiency were promised.\n\nAn interesting note about the QWERTY layout is that all the letters of the word "TYPEWRITER" are on the top row. Some believe that Sholes wanted to make it easy for salesmen to show off his new invention, but it was probably just a coincidence.\n\nhope that helps!
934540
There was a very good reason, but that reason is worthless now.\n\nRemember in the old days when typewriters had little arms attached to the keys that would go up and strike the ink ribbon and imprint the letter on paper?  Well, if you have ever typed on a typewriter like this, you know that if you hit 2 keys close together you would get the arms stuck.  The keyboard layout was made such that the likelyhood of the arms getting stuck together was minimal.\n\nIf anyone tells you that the keyboard layout is for ergonomic reasons that is the furthest from the truth.  The layout was the best working layout to prevent the typewriters from constantly jamming.  The reason for not changing it? Because that's the way it's always been.
198058
Someone may have messed with your keyboard definitions.