The last type of switch, buckling spring, is a throw-back to the infamous IBM Model M that made it famous how many switches for 75 keyboard. As the name suggests, the switch works when the key puts pressure on a spring that is under pressure underneath, until finally the spring buckles under the pressure, allowing the key to be pressed. Then upon release, the spring regains its original form. While this type of key-switch is no longer commonly found in modern keyboards, it's important to understand where all this started.

Modern mechanical keyboards utilize perfectly engineered high-performance switches that help take away the strain of typing and provides you with the tactile and audio cues that will allow you to type faster and more efficiently. The only downside is that after you have used a mechanical keyboard, going back to a cheap "mushy" rubber-dome keyboard will seem like torture.