Scanner is an optical device that reads a printed page or transparency and converts it into a graphics image for the computer. The scanner does not recognize or differentiate in any manner the content of the material it is scanning. Everything is converted into a bitmapped image, which is a pattern of dots. Scanners are used to read and convert the images into the digital format, which are mainly used for website. They are also used in the film Industries, to scan the slides and film. Scanners are just like having a radio in the car, as it has the ability to get tuned to the selected frequency and are available in various sizes at reasonable rates. They can also be used to modify the images depending upon customer's requirement. Scanning make the images more attractive, sharp and beautiful. Therefore, they are used in almost all the industries and can also be used to take out print out. Different types of Scanners are readily available in the market such as Canon Pixma, Drum Scanners, Flatbed Scanners, photo scanners, Film Scanners, industrial barcode scanners, police scanners, radio scanner etc.