Understanding Scanner Technology

Most scanners work by reflecting light off of an object and detecting the reflected light with a charge-coupled device (CCD). Stated this broadly, scanners are no different from digital cameras. In practice, scanners usually take longer to form an image because their CCDs can't take in the entire image at once. Instead, the scanner builds up the image as its CCD views one part of the page after another. Precisely how the scanner shifts its point of view varies from one device to another. These variations form the basis of the major classifications of scanners.

Digital Cameras For Beginners

Digital Cameras For Beginners

Although we usually tend to think of the digital camera as the best thing since sliced bread, there are both pros and cons with its use. Nothing is available on the market that does not have both a good and a bad side, but the key is to weigh the good against the bad in order to come up with the best of both worlds.

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