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In computing, an input device is computer hardware which is used to enter data for processing. Examples of input devices include keyboard, mouse, image scanner, digital cameras and joysticks. A touchscreen is a combined input and output device.
- Doyle, Stephen (2010). Essential GCSE ICT for AQA: Student Book. Oxford University Press. p. 4, 303. .
- GCSE ICT (Information Communication Technology): Complete Revision and Practice. Coordination Group Publications. 2003. p. 13. .
- "Input device". Computer Hope. http://www.computerhope.com/jargon/i/inputdev.htm. Retrieved 2011-09-11.