INPUT DEVICES

Definition:

In computing, an input device is a piece of 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, computer mice, scanners, cameras, joysticks, and microphones.

TYPES OF INPUT DEVICES:

😊 KEYBOARD:

A keyboard is a human interface device which is represented as a matrix of buttons. Each button, or key, can be used to either input an alphanumeric character to a computer, or to call upon a particular function of the computer. It acts as the main text entry interface for most users.

😊POINTING DEVICE:

A pointing device allows a user to input spatial data to a computer. It is commonly used as a simple and intuitive way to select items on a computer screen on a graphical user interface (GUI), by moving a mouse pointer. Common pointing devices include mice, touchpads, and touch screens.

😊SENSORS:

A sensor is an input device which produces data based on physical properties.Sensors are commonly found in mobile devices to detect their physical orientation and acceleration but may also be found in desktop computers in the form of a thermometer used to monitor system temperature.

😊COMPOSITE DEVICES:

Input devices, such as buttons and joysticks, can be combined on a single physical device that could be thought of as a composite device. These are generally considered to have more than two different forms of input.

😊VIDEO INPUT DEVICES:

Video input devices are used to digitize images or video from the outside world into the computer. The information can be stored in a multitude of formats depending on the user's requirement. Many video input devices use a camera sensor.