Question

What are (computer) keyboards made of? (As in materials in keys or the board.)

Answer 1

Hint: There are three types of material present in the keyboards in which two of which are polymers and one of them is a metal or alloy of metals. This metal or alloy is used as a switch which is used to give the specific input.

Complete answer:
Keyboards are the important part of the computer in which we can type all the alphabets, numbers, signs, and many other functions like page up, page down, control, shift, backspace, etc. So, these are specific keys on the keyboard that are used to give specific input. There are many types of keyboards made up of different types of materials based on the company. But generally, we can say that there are three types of material present in the keyboards, two of which are polymers, and one of them is a metal or alloy of metals.
So, these are plastic, rubber, and either steel or aluminium. The outer part of the keyboard is made up of the plastic that we press, while the internal part of the keyboard is made up of plastic and rubber which makes it elastic when we press it the key comes back to its position. Under the internal part of the keyboard, there is a circuit that is made up of steel or aluminium. This is the common base of many keyboards.

Note:
If the keyboards are made up of expensive materials then at the place of aluminium or steel, there can be good plated internal circuits. The cheapest keyboard is made up of wood.