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Scanner

                                                      Scanner is a device that helps to input printed pictures
                                                      and text into the computer by reading them. Different
                                                      types of scanners are available. The choice of scanners
                                                      depends on the purpose for which these are to be
                             Scanner
                                                      used. Some popular types of scanners are:



                       Hand-Held Scanner: It is a type of scanner that is held in
                       hand and rolled over a flat image or document. It is used
                       to scan documents into their digital forms.

                                                                                                  Hand-Held Scanner

                                                  Flatbed Scanner: It is a type of scanner that uses a flat,
                                                    glass surface for scanning documents. It looks like a
                                                    photostat machine.
                      Flatbed Scanner


                       Sheetfed Scanner: It is a type of scanner that allows multiple
                       papers to be scanned at a time. In this scanner, the stack of
                       papers is kept on top and the scanner automatically scans
                       the pages one by one. It is widely used in offices to scan
                       documents.
                                                                                                   Sheetfed Scanner
                   Clickipedia



                    The difference between a flatbed scanner and a sheetfed scanner is that a sheetfed
                    scanner allows you to scan a stack of papers, while a flatbed scanner deals with one
                    paper at a time.



                  Webcam


                  It is a digital video camera connected to a computer. It helps
                  to put your image into the computer when you are connected
                  to the Internet.



                                                                                                           Webcam
                                                        Graphic Tablet

                                                        It allows to directly draw on a computer screen. The
                                                        device consists of a flat surface upon which you can

                          Graphic tablet                draw with an attached stylus which looks like a pen.


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