196 1 the electric typewriter appeared, which had a far-reaching impact on modern computer keyboards. Executives gradually began to like the keyboard experience of Selectric, so many keyboards of early computers imitated it.
Ergonomic keyboard "(Ergonomics)
Since 1977, a PCD Maltron keyboard has appeared in the market, which aims at reducing repetitive labor injuries and is suitable for disabled users. 1989, Martron introduced a new one-handed keyboard product (pictured above).
A classic keyboard was born.
1985, known as IBM Model M, deployed hundreds of keys for the keyboard for the first time. Because of the large feedback of keys, its mechanical spring design even fascinates many collectors (if you especially like mechanical keyboards).
1978, IBM obtained an important patent called "buckle spring", which can imitate the use experience of the old electric typewriter. The principle is to connect a small spring on the lower side of the non-horizontal keycap. When the user presses a key, it will sound like an IBM keyboard.
The joy of hackers:
With the popularity of IBM Model M, geeks who are used to blind typing have begun to show off another way-using a "blank" keyboard, reducing the number of keys to about 60 without printing any letters.
1996, PFU co., ltd introduced this keyboard made by Fujitsu. In addition to its compact shape, it also optimizes the keyboard layout for UNIX. Its early model used membrane structure, and later changed to capacitor.
Pixels perceive "touch pixels"
Virtual keyboards, whether projected or on the screen, lack tactile feedback. Although mobile devices can be prompted by vibration, there is still a considerable gap between them and physical keys.
In view of this, Tactus developed "tactile liquid crystal display technology". These "perceptual pixels" will disappear when they are not applicable, and will "emerge" when needed.
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