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Reference.org
Charge-coupled device
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<p>A charge-coupled device (CCD) is an <a href="/facts/Integrated_circuit/fjn6vg7C">integrated circuit</a> containing an array of linked, or coupled, capacitors. Under the control of an external circuit, each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a major technology used in <a href="/facts/Digital_imaging/nTNga50f">digital imaging</a>. </p>