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Random Access Memory (RAM)

                  RAM is  a  temporary memory that loses  its data
                  when the computer is turned off. This is why it is
                  known  as  volatile  memory.  It temporarily stores

                  the data and instructions given by the user, as well
                  as the results produced by the computer.

                  Types of RAM:

                  There are two types of RAM:
                  1.  Dynamic RAM (DRAM): It needs a constant supply of power to keep the stored

                     data refreshed.
                  2.  Static RAM (SRAM): It also needs a continuous power supply to maintain the
                     data, but unlike DRAM, it does not require constant refreshing.

                  However, SRAM is much faster and consumes less power compared to DRAM.
                  Read-only Memory (ROM)


                  ROM is  a type of permanent  memory, also called
                  non-volatile memory. It keeps data even when the computer
                  is turned off. ROM stores the essential instructions needed
                  to start up the computer.



                                    If you have a magical computer that can store all your favourite things
                                    in special boxes, how would you label these boxes to remember
                                    your best memories, like your favourite games or school projects?


                  Secondary Memory

                  Secondary memory is a type of permanent memory where the computer keeps
                  things for a long time. Data stored in secondary memory can be retrieved later

                  when required.
                  Secondary memory devices are also called secondary storage devices. They are
                  categorised into three types:


                                            Secondary Storage Devices




                    Magnetic Disk                    Optical Disc                    Flash Drive




                       Hard Disk           CD     DVD       Blu-ray Disc      Pen Drive     Memory Card        SSD




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