Page 24 - OS | TOPIC 1 | INTRODUCTION TO OPERATING SYSTEM
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     Analogy  :  The  visualization  is
                                   similar  to  a  sandwich  with  variety
                                   of ingredients layers which placed
                                   on  top  of  each  other  in  order  to
                                   produce           the        mouthwatering
                                   sandwiches.
                                  In  the  layered  operating  system,
                                  user  will  be  able  to  modify  or
                                  replacing  each  layers  without
                                  impacting  each  other,  just  similar
                                  to  customizing  the  sandwich  by
                                  altering the ingredient layers.
                                                                    Similar to how each
                                                               component of a sandwich
                                                             adds to the overall flavor and
                                                              texture, each layer interacts
                                                                with the layers above and
                                                                             below it.
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