First find the key position of the keyboard lock. It is usually a lock icon. If there is no icon, it is probably the key F 1 1 or F 12. Then press FN+ keyboard lock key to unlock. If the keyboard lock is F 1 1, press Fn+F 1 1 to unlock it. To unlock some keyboard locks, press FN+ right Alt+ lock.
The origin of keyboard arrangement
The alphabetical order of the keyboard is sorted according to the frequency of using letters. Interested readers may wonder why 26 letters are arranged in such a random way. It is difficult to remember and master. It is said that the reason is this:
19 In the 1970s, Shoals Company was the largest professional typewriter manufacturer at that time. Because the mechanical technology was not perfect at that time, the keys rebounded slowly after being struck. Once the typist hits the keys too fast, the two keys are easily twisted together and have to be carefully separated by hand, which seriously affects the typing speed.
So the company often receives complaints from customers.
In order to solve this problem, a clever engineer suggested that the reason why typewriters twist keys is that the keys are played slowly on the one hand and the typist is too fast on the other. Since you can't improve the rebound speed, why not try to slow down the typing speed?
There are many ways to slow down the typist. The easiest way is to disrupt the arrangement of 26 letters and put the more commonly used letters under clumsy fingers. For example, the letters "O", "S" and "A" are frequently used, but they are hit by the clumsiest right hand ring finger, left hand ring finger and left hand little finger. Unusual letters such as "V", "J" and "U" are handled with the most flexible index finger.
Thus, this "QWERTY" combination keyboard was born and gradually took shape. Later, due to the development of materials and technology, the speed of keys bouncing back is much faster than that of typists, but the alphabetical order of keyboards cannot be changed. Although there are many reasonable letter design schemes, none of them can be popularized, which shows how powerful the customary forces of society are.
The universal keyboard with 10 1 key or 102 key is named QWERTY keyboard because of the arrangement of English letters. There is no doubt that it was born on the English typewriter. Bill Gates once used this keyboard to illustrate the standard of "fact": "The alphabetical order on English typewriters and computer keyboards is QWERTY, and there is no law that it must be arranged in this way.
But they are effective and most users will stick to this standard. Interestingly, this arrangement is not a reasonable layout.
The inventor of QWERTY keyboard is C. Shoals, who lived in the American Civil War in the19th century and was the editor of Milwaukee News. With the help of his good friend Saul, Shoals developed the page numbering machine and obtained the invention patent. Glidden, a colleague of the newspaper, suggested that he further develop a typewriter on this basis and bring him the experimental data of the British.
After years of efforts by Shoals and two partners, they made a prototype of the typewriter at 1860. However, Shoals regrets to find that as long as the typing speed is faster, his machine will not work normally. Traditionally, Shoals arranged 26 English letters in the order of ABCDEF on the keyboard. In order to make the typed words one by one, the keys should not be too far apart.
In this case, as long as the finger is a little faster, the metal rods connecting the keys will interfere with each other. In order to overcome the interference phenomenon, Shoals rearranged the position of letter keys and arranged the spacing of common letters as much as possible, which prolonged the process of finger movement.
The abnormal way of thinking has actually succeeded. Shoals excitedly typed a line of letters: "The first blessing is for all men, especially for all women."
Shoals "deliberately" dedicated his invention to women, and he wanted to create a new career for them-"typist". 1868 On June 23rd, the US Patent Office officially accepted the invention patents of typewriters registered by Shoals, Glidden and Sol.
From this point of view, the keyboard alphabet invented by Shoal has too many shortcomings. For example, eight of the most commonly used letters 10 in English are too far away from the designated finger position, which is not conducive to improving typing speed; In addition, there are too many letters on the keyboard that need to be typed with the left hand. Because most people are right-handed, it is awkward to use.
Some people have done statistics, using QWERTY keyboard, a skilled typist can move his finger for 25.7 kilometers in 8 hours. However, QWERTY keyboard is still the "de facto" standard for computer keyboards. Although A.DVORAK, a professor at the University of Washington, designed a keyboard with more scientific key arrangement in 1932, it has never been popularized.
Windows built-in support for it. Open the control panel → keyboard, enter the Input Method Regional Settings tab, click the Add button, set the Input Method Regional to English (USA), and find "American English -DVORAK" in the keyboard layout/input method column.
Upon confirmation, all key positions have been changed. You have the capital to improve your English typing speed. Of course, it will take time to re-adapt to the new system and train patiently to succeed.