Input Device - A piece of computer hardware used to provide data and control signals to a computer., Scanner - Converts physical documents or images into digital format., QR Code Reader - Scans Quick Response codes and interprets stored information., Sensors - input devices which read or measure physical properties., Data input - devices that convert user information into digital data that the computer can process., Optical Mouse - Moves the cursor on the screen based on hand movements over a surface, Microphone - Captures analogue sound and converts it into digital signals, Touch Screen (Infra-red) - Detects touch by interrupting infrared light beams across the screen, Where are Two-Dimensional (2D) Scanners used? - Digitises documents and photos for storage, editing, or sharing, Which input device detects sound - Microphone,

Input devices

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