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Evolution of input devices

The concept of input devices originated in the late 19th century. At that time, people needed to transmit financial stock data over the telephone line, which improved the early prototype of the keyboard, so the teletypewriter was born. This machine is able to print a piece of text from the launch pad to the stock market machine, making it easy for people to transfer information quickly.
In the 20th century, typewriters became more and more common, and the QWERTY keyboard layout was born and began to rule the Western world. At that time, the appearance of this keyboard layout solved the problem probabilistically due to the fact that the common letter keys in the continuous knocking caused the entire machine to get stuck, although its input efficiency was not the highest. At the same time, there are keyboards like QWERTZ and DVORAK, but it is still not as popular as the QWERTY keyboard layout. If you still want to know how the names of these keyboard layouts come from, look at the 6 letters on your keyboard starting from Q and counting to the left.
Back to today, many of us have become accustomed to codewords on Ultrabooks or keyboards with Little Red Riding Hood, the most common membrane buttons. For many geeks, they enjoy the retro tapping feel of mechanical keyboards and IBM’s sturdy spring-axis membrane mechanical keyboard. If you want to start with a similar one, you can consider starting with the Razer BlackWidow.
???????As technology evolved into the field of Pocket-PC and PDA, various forms of data entry requirements began to be raised. To this end, Palm introduced Graffiti, a method for text input on a resistive screen.

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