The touchpad is an input device which tracks the motion or touch of the user’s finger to a relative position on screen. This is a common feature found in desktops, laptops, phones, MP3 players, PDAs, etc. As per the ‘Smart Computing Encyclopaedia’, the touchpad was discovered by George E. Gerpheide in 1988. It is also known as a track pad, pointing device, glidepoint and touch sensitive input device. It was first brought to use for Psion’s MC 200/400/ 600/WORD Series in 1989.
The touchpad is usually used when information needs to be accessed or looked upon with minimum effort. The touchpad only works or regulates sensing the motion of fingers. Therefore, it would not even sense if the surface is accessed with gloved fingers. The more updated form of touchpads are multi touchpads which basically refer to those touchpads which can recognize the touch of more than one finger at a time.
