Wednesday, February 3, 2010

A scanner basically records images : text , pictures, graphics? True or False?

True





In computing, a scanner is a device that analyzes a physical image (such as a photograph, printed text, or handwriting) or an object (such as an ornament) and converts it to a digital image.





Most scanners today are variations of the desktop (or flatbed) scanner The flatbed scanner is the scanner most people will have as it is simple to use and effective in its purpose. Hand-held scanners, where the device is moved by hand, were briefly popular but are now not used due to the difficulty of obtaining a high-quality image. Both these types of scanners use a charge-coupled device (CCD) as the image sensor, whereas a drum scanner uses a photomultiplier tube as the image sensor.A scanner basically records images : text , pictures, graphics? True or False?
True





In computing, a scanner is a device that analyzes a physical image (such as a photograph, printed text, or handwriting) or an object (such as an ornament) and converts it to a digital image

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