A touchpad is a small rectangular pad used to control the pointer used in place of a mouse. It is usually operated with the index or middle finger and two buttons representing the left and right buttons on a standard mouse. It can also be integrated into an ordinary desktop keyboard or come as a separate device.
Types of Touchpads
Kinds of Touchpads include the following:
An external touchpad connects to computers using a USB, serial or PS/2 port. It is housed in a separate case containing the click buttons and other additional controls. It allows users to program specific key shortcuts to access PC programs and internet applications.
A portable touchpad combines the features of a flat keyboard and a touchpad. It is usually lightweight and designed for easy portability. It can be used with a standard desktop PC, a tablet PC, or a flat LCD monitor. It connects to most computers through a USB port or wireless connection.
Built-in touchpad keyboard
A built-in touchpad keyboard is an ordinary desktop keyboard with a touchpad at the bottom panel. It is ideal for users with limited arm movement and for computers lacking a standard mouse.
Choosing Touchpads (Buying tips)
Compatibility: Choose a touchpad that plugs into available ports in your computer. Make sure it leaves extra ports to connect other devices.
Wrist support: If you frequently use the computer, choose a keyboard touchpad with built-in wrist supports, which are ergonomically designed to protect your wrists from strain and injury.