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Compact Disc (CD)


                                         The compact disc is circular in shape. It is a portable storage
                                         device. The storage capacity of a CD is less than the hard disk.


                         CD

                  Digital Versatile Disc (DVD)

                  DVD is used to store  a  large  amount  of data.  The  storage
                  capacity of a DVD is more than a CD.


                                                                                                          DVD
                                          Pen Drive


                                          It is a small storage device, also known as the USB Flash drive.
                                          The storage capacity of a pen drive is greater than that of a
                      Pen Drive           DVD, but less than a hard disk.


                                                                                   #Ethical & Moral Reasoning

                                         The computer has special ports for
                            !            pen drive called the USB Ports. We                                   USB


                                         insert the pen drive into a USB port                                 Port
                       CAUTION           to store or transfer data.




                         Boost Bits


                   Storage devices act as both input and output devices.







                         The parts of a computer are divided into three categories—input devices,
                        output devices and storage devices.

                         Input devices are used to instruct the computer what to do.

                         Keyboard, mouse, scanner and microphone are some of the input devices.
                         Output devices are used to give the result.
                         Monitor, printer, speakers, headphones and headset are some of the output

                        devices.

                         Storage devices are used to store our work.

                         Hard disk, CD, DVD and pen drive are some of the storage devices.



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