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Unlike most hardware devices, the mouse has endured for several decades. A similar pointing device designed for desktop computers is a trackball-an upside-down mouse that allows a user to control the cursor by rotating the ball in the direction of desired cursor motion. To manipulate the cursor, a user moves a mouse on a flat surface the cursor’s motion is proportional to the relative change in position of the mouse. The de facto pointing device for desktop computers is a mouse, which was invented by Douglas England in 1967. A pointing device is a type of input devices that allows a user to interact with a computer by moving a cursor on a monitor to select icons and trigger desired actions. IntroductionĪn input device allows a user to interact with a computer by converting human motor responses into signals a computer processes. We conclude that a deįacto pointing device for wearable computers, unlike laptops, is not likely to emerge. The objective of this paper is to showcase a variety of pointing devices developed for wearable computers and bring structure to the design space for wearable pointing devices.

We survey a representative set of pointing devices for wearable computers using an “adaptation of traditional devices” versus “new devices” dichotomy and study devices according to their control and sensing mechanisms and form factor. However, unlike laptops, since wearable computers are operated from different body positions under different environmental conditions for different uses, researchers have developed a variety of innovative pointing devices for wearable computers characterized by their sensing mechanism, control mechanism, and form factor. Just as the advent of laptops resulted in the development of the touchpad and trackpoint, the emergence of wearable computers is leading to the development of pointing devices designed for them. Since traditional pointing devices (i.e., mouse, touchpad, and trackpoint) were designed to be used on a steady and flat surface they are inappropriate for wearable computers. We present a survey of pointing devices for wearable computers, which are body-mounted devices that users can access at any time.