You have direct contact with the keyboard than with any other component of your PC.
You can go years without the
see less - much less play - the processor or hard drive of your PC, but most people pay much
more attention than these components in one part of the computer that
does not define the proper functioning of the computer, but the
quality of work performed on it.
A poorly designed keypad locks productivity and can even cause health problems.
A well-designed keyboard
is that you even forget it exists; thoughts seem to flow freely to the screen of your computer without you
aware of what your fingers are doing.
Despite the importance of the keyboard, most manufacturers - and many users - pay little attention to this part.
Today
days, some keyboards have built-in trackball or other pointing device.
Some have drawings
different, the designers believe alleviate repetitive motion syndrome.
The few changes that have emerged -
keyboard with concave keys equidistant fingers or keyboards where you can work with only one hand - not
caught.
Regardless of the manufacturers do not have the imagination or the computer users are not interested, the
basic operation of a keyboard not changed significantly since the first appearance of the early IBM PC
80.
Although the provision of all keys except the alphanumeric is at the top - especially in
keyboards of notebooks - the only practical difference in how keyboards work lies in the mechanism that converts
movement of a keystroke on a signal sent to the computer.
We'll see how these two mechanisms: contact
physical and capacitive.
Except for this difference, the movement of the signal from the keyboard to the PC is a technology
tested by time.
Source: Evolution of Computers
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