4. Touchpad

A touchpad is an input device which is usually found on a laptop computer.

touch padBecause a laptop is meant to be portable, people are not always able to attach a traditional mouse, it might be too much hassle or there might not be enough room to use one. A touchpad can be used in place of a mouse.

By dragging your finger over the surface of the touchpad, sensors underneath detect the movement direction and speed. The sensors only react to a fingertip and not a pencil or other object. There are usually two buttons next to the touchpad which are used to replace the left and right mouse button.

  • Useful for laptops when using a mouse is not practical
  • The pad's position is fixed compared to the keyboard, unlike with a traditional mouse
  • Very short finger movements are required to move the cursor
  • Takes practice and skill to control the position of the cursor using the touchpad
  • Gloves cannot be worn i.e. in a cleanroom environment
  • Moist, sweaty or calloused fingers can disrupt the signals picked up by the sensors.

challenge see if you can find out one extra fact on this topic that we haven't already told you

Click on this link: Touchpad Mouse