Keyboards have a long history. As early as 17 14, people in Britain, America, France, Italy, Switzerland and other countries began to invent various types of typewriters. The earliest keyboards were used on typewriters with immature technology at that time.
It was not until 1868 that Christopher Larsen Shoals, the American "father of typewriters", patented the typewriter model and obtained the right to operate it. A few years later, he designed a practical form of modern typewriter and standardized the keyboard for the first time, which is now the "QWERTY" keyboard.
2. "dvorak" keyboard
Because of the appearance of blind typing technology, the keystroke speed is enough to meet the needs of daily work. However, 60 years later (1934), a man named dvorak invented a new arrangement method, which enabled his left and right hands to alternately type more words. This keyboard can shorten the training period by 1/2 times and increase the average speed by 35%.
3. "malt" keyboard
More reasonable and efficient than Dvorak keyboard is the malt keyboard invented by Lillian malt. It changes the original staggered rows of character keys, makes the thumb easier to use, and makes the keys such as backspace, which were far away from the center of the keyboard, easier to reach.
Extended data
Keyboard structure
Keyboard shell, some keyboards are fixed on the keyboard panel and base by plastic hook technology, which realizes the design of fixing without metal screws. Be careful when disassembling to avoid damage.
In order to meet the needs of different users, the conventional keyboard has three indicators (CapsLock (letter case lock), NumLock (numeric keypad lock) and ScrollLock (some wireless keyboards omit these three indicators) to mark the current state of the keyboard.
These indicators are generally located in the upper right corner of the keyboard, but some keyboards use the indicators built into the keycap. This design can make it easier to judge the current state of the keyboard, but the process is relatively complicated, so most ordinary keyboards don't use this design.
No matter how the keyboard shape changes, the basic key arrangement remains basically the same, which can be divided into main keyboard area, Num auxiliary keyboard area, F-key function keyboard area, control key area and multifunctional keyboard shortcut area.
The keyboard circuit board is the control core of the whole keyboard, which is located inside the keyboard and mainly serves as the interface for key scanning recognition, coding and transmission.
The reverse side of the keycap is all key plungers, which is directly related to the life of the keyboard, and its friction coefficient is directly related to the feel of the keys.
There are generally four printing technologies for keycaps: ink printing technology, laser etching technology, secondary molding technology and thermal sublimation printing technology.
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