Keyboard – Definition, Features, Six Types, Applications, and More

Table of Contents

What is the keyboard?

The keyboard is a peripheral or input device or input (input) information.
It is a set of keys or buttons arranged horizontally on a sheet, which act as levers mechanical or electronic switches.
And also, it allows the user’s entry of information encoded to the computer system.

The keyboards operate using a microcontroller’s operation, equipped with its software.
It is capable of carrying out matrix scans each time we press a key and thus knowing which one it was and what character or function corresponds.
It occurs by assigning different keys a numerical value through a code linked to its physical position, called the Scan Code.
This code, for example, is different when we press various keys at the same time.
It allows the composition of many more signs than are drawn on the keyboard.
On the other hand, keyboards can communicate with the system differently, depending on whether they physically separate from the CPU, laptops. They are part of it.
There are wireless keyboards that use it for WiFi technology, while others are faithful to the connecting cable.
Even removable models allow all users to handle the different blocks that compose it separately physically.

The most straightforward and easy way to classify keyboards is by looking at their physical form, structure, and industrial design.
Thus, we have the following cases:

Those that are rectangular and follow the aesthetics of the standard IBM keyboard.

Those designed to fit the shape of human hands and not cause as much damage to their joints.

It can have direct access keys to different.
The computer system’s various functionalities, especially those that have to do with its audio, video, connectivity, or even specific applications

They produce from lightweight elastic materials, such as silicone or soft plastic.
Therefore, they can fold back on themselves, adapt to uneven surfaces, or even submerging in water without affecting their functionality.

It does not exist physically but projects on a touch screen or touch screen and presses directly.

Discontinued due to low resistance to use, they consist of two thin plastic sheets or membranes.
Equips with conductive tracks on the inside, the electronic signal was allowed to pass when pressing with the finger.

Similarly, there are different critical layouts on the keyboard, depending on the language it is in the manufacturer company and the computer model.
The West’s standard is the IBM keyboard, in its QWERTY layout, named for being the first three letters of the alphanumeric block.
This distribution comes from the Anglo-Saxon typewriters.
It intends for English, but later it was moved to other languages, adding accents and special characters such as the Spanish or the Portuguese.
However, this layout criticizes from an ergonomic point of view.
There are friendlier alternatives like Colemak, Carpalx, or Workman, which put less strain on the hands, or the Dvorak Simplified Keyboard.

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