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Hard disk              CD                DVD                Pen drive           Memory card

                 Need for Storing Work on a Computer


                 When your teacher teaches you something, you keep it in your
                 brain and recall it when required, but sometimes you might forget.
                 If you note it down in your notebook, you can revise it later, again
                 and again. So whatever you have learnt remains forever.

                 In the same way, if the power goes off while you are working and
                 you have not saved your work, you might lose it. When you turn
                 the computer back on, you will not be able to find your work.

                 But if you save it on any of the storage devices, you can open it
                 again later. Storing work on a computer or any storage device is
                 called saving.
                 Suppose you are drawing a ‘Rainy day’ in Paint. You

                 have finished half of it and your computer period is
                 over. What will you do? You will save it and continue
                 the rest of it in the next period.

                        Boost Bits


                  Many  years  ago,  people used a  storage device called
                  Floppy Disk. It is not used nowadays. The save icon you see
                  in almost all software is actually an image of a floppy disk.




                    WHAT IS A FILE?


                 When you write or draw in a notebook or drawing
                 book, those books are similar to files.
                 When you work on a computer in any software and
                 save it, it gets saved in the form of a file on the hard

                 disk. A file in a computer is a piece of information
                                                                                                        Paint File
                 stored on a storage device.







                                                                             File Management—An Introduction     67
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