What is a USB Touchpad?
A USB touchpad adds a laptop-like pointing device to a desktop keyboard to avoid having to use a mouse. For many people who have become used to the touchpads built into their mobile computers, returning to a desktop computer with a conventional mouse can be uncomfortable and inconvenient. A USB touchpad requires virtually no pressure to point-and-click and arms can stay relaxed at the sides when the device is secured to the keyboard. A USB touchpad looks like a standard touchpad with an attached cable that plugs into the USB port. The touchpad itself is a slightly rectangular pad with a touch-sensitive surface. The lightest swipe of a fingertip controls cursor movement, and taps emulate clicks. Scrolling is accomplished by sliding a fingertip up or down the vertical edge of the pad, or along the bottom edge for horizontal scrolling,. Software is used to adjust general sensitivity, tap pressure, and the time gap between taps to indicate a double-click. Additional drivers can enhance a U
