An input device is any hardware device that sends data to a computer, allowing you to interact with and control the computer. The picture shows a Logitech trackball mouse, an example of an input device.
The most commonly used input devices on a computer are the keyboard and mouse.
However, there are dozens of other devices that can also be used to
input data into the computer. Below is a list of computer input devices
that can be used with a computer or a computing device.Types of input devices
- Audio conversion device
- Barcode reader
- Biometrics (e.g. fingerprint scanner)
- Business Card Reader
- Digital camera and Digital Camcorder
- Electroencephalography (EEG)
- Finger (with touchscreen or Windows Touch)
- Gamepad, Joystick, Paddle, Steering wheel, and Microsoft Kinect
- Gesture recognition
- Graphics tablet
- Keyboard
- Light gun and light pen scanner
- Magnetic ink (like the ink found on checks)
- Magnetic-stripe reader
- Medical imaging devices (e.g., X-Ray, CAT Scan, and Ultrasound images)
- Microphone (using voice speech recognition or biometric verification)
- MIDI keyboard
- MICR
- Mouse, touchpad, or other pointing device
- Optical Mark Reader (OMR)
- Paddle
- Pen or Stylus
- Punch card reader
- Remote
- Scanner
- Sensors (e.g. heat and orientation sensors)
- Sonar imaging devices
- Touch screen
- Video capture device
- VR helmet and gloves
- Webcam
- Yoke
Tip: Keep in mind that drives such as a CD-ROM, DVD, Floppy diskette drive, and a USB Flash drive may be capable of sending information to a computer, but they are not input devices. They are considered storage devices.
Source : http://www.computerhope.com/jargon/i/inputdev.htm
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