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Which has the greatest mass density?
Digitizer
A device or technology that converts analog information into digital form, often used with touchscreens and drawing tablets to input data into computers.
Input Device
Hardware used to enter data and control signals into a computer or other devices, such as keyboards, mice, and microphones.
Webcam
Short for web camera, a small camera used for communicating via video across the Internet.
Live Video
Video broadcast in real time as events happen, without significant delay.
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