PC or computer scanner is a device which transforms images from real pictures, sketches, drawings and text into computerized documents. It reads all the human brain friendly data and changes it into a computer brain friendly data. The principle behind a scanner is that of reflection of light. It converts an image into a collection of dots that can be read and understood by the computer. Now day�s scanners are available in different variants like flatbed, sheetfed and film scanners. Top electronic brands have entered in scanner market now like Canon, HP, Epson, Benq, Xerox, Microtech, Umax and providing a range of top class scanners of all kinds at competitive rates.