input device

An input device is any hardware device that sends data to the computer, without any input devices, a computer would only be a display device and not allow users to interact with it, much like a TV. In the picture to the right, is a Logitech trackball mouse and an example of an input device. Below is a complete listing of all the different computer input devices that can be used on a computer.

Types of input devices

Audio conversion device
Barcode reader
Business Card Reader
Digital camera / Digital Camcorder
Finger (with touchscreen)
Fingerprint scanner
Gamepad / Joystick / Paddle / Steering wheel / Microsoft Kinect
Graphics tablet
Keyboard
Light gun
Magnetic-stripe reader
Medical imaging devices (i.e. X-Ray, CAT Scan, and Ultrasound images)
Microphone (using speech recognition)
MIDI keyboard
Mouse, touchpad, or other pointing device
Remote
Scanner
Sonar imaging devices
Touch screen
Video capture device
VR helmet and gloves
Webcam
 Keep in mind that drives such as a CD-ROM, DVD, and a Floppy diskette drive may be capable of sending the computer information but they are not input devices. These devices are considered storage devices.