Ccd scanner Bar code Scanner
CCD (Charge Coupled Device) Bar code Scanner use an imaging CCD (similar to the ones found in digital cameras) to take a picture of bar codes which are then decoded into a sequence of characters. CCD Bar code Scanner have a very fast scan speed, but a low scan range (often less than 3 inches from the bar code). CCD Bar code Scanner can be very durable because they do not contain any moving parts, but are limited because they cannot read any bar codes wider than the imaging element. Their low cost and speed make CCD Bar code Scanner well suited for point of sale applications, but their short read range makes them a poor choice for warehouse or industrial applications.