What device measures its the proper acceleration relative to freefall, and is increasingly used in portable electronic devices and video game controllers to detect the orientation of the device or provide game input?
Accelerometer is quite variable. Single- and multi-axis models of accelerometer are available to detect magnitude and direction of the proper acceleration, as a vector quantity, and can be used to sense orientation (because direction of weight changes), coordinate acceleration, vibration, shock, and falling in a resistive medium (a case where the proper acceleration changes, since it starts at zero, then increases). Micromachined microelectromechanical systems (MEMS) accelerometers are increasingly present in portable electronic devices and video game controllers, to detect the position of the device or provide for game input. An accelerometer measures proper acceleration, which is the acceleration it experiences relative
Input device Input device In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks. Audio input devices may be used for purposes including speech recognition. Many companies are utilizing speech recognition to help assist users to use their device(s). Input devices can be categorized based on: 'Keyboards' are a human interface device which is represented as a layout of buttons. Each button, or key, can be used to either