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STORAGE DEVICES


                 Other than input devices, processing device and output devices, a computer also uses

                 storage devices. The storage devices are used to store our work. Some of the storage
                 devices are:

                 Hard Disk


                 It is fixed inside the CPU box. It can store the files that we create on
                 computer and can be used later.


                                                 CD and DVD


                                                 These are small storage devices. The storage capacity of a
                                                 DVD is more than a CD.



                 Pen Drive or USB Flash Drive

                 It is a very small storage device. The storage capacity of a pen drive is
                 more than a DVD but less than a hard disk.



                      WORKING OF MACHINES


                 Have you seen your mother making mango shake for you? This is what she does to
                 make the mango shake.

                 1.  She puts the mango pieces, sugar and milk in the blender.

                   This is the input.

                 2. The blender mixes all the things. This is the process.

                 3.  She pours the mango shake in the glass. You can drink it

                   now. This is the output.












                                   INPUT                                 PROCESS                        OUTPUT


                 This is also called IPO cycle. Let us look at some more examples of IPO cycle.






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