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Primary Memory

                 Primary memory is the main memory of a computer. Cpu can directly access this

                 memory. It is fixed on the motherboard
                 of a computer. Primary memory  is                        The human brain can hold about

                 further divided into two types:                            2.5 petabytes of information,
                                                                        equivalent to a tV show being played
                 ●  random Access Memory (rAM)                         for approximately 342 years non stop.

                 ●  read-only Memory (rOM)                                                                                  COMputer MeMOry

                 Random Access Memory (RAM)

                 rAM  is  a  temporary  memory.  the  information  stored

                 in this memory is lost when the computer is turned off.
                 that’s why it is also called volatile memory. It temporarily
                                                                                                                           7
                 stores data and instructions given by the user and also                                                   7
                 the results produced by the computer.                                                rAM


                 Types of RAM:

                 ●  Static RAM (SRAM): SrAM is a type of memory that holds data without needing
                   to be refreshed. It is fast and used for small amounts of memory.

                    example: think of it as a special notepad that always remembers what’s written

                    on it, even if you do not keep checking it.
                 ●  Dynamic  RAM  (DRAM): DrAM is a common type of memory that needs to be

                   refreshed thousands of times per second to keep the information.

                    example: Imagine a chalkboard that fades if you don’t keep writing over it to
                    make the writing stay clear.


                 Read-only Memory (ROM)

                 Information  stored  in  rOM  is  permanent  in  nature,  i.e.,

                 it holds the data even if the system is switched off. For
                 example, it holds the starting instructions that are required
                 to start a computer. It is also called non-volatile memory.                     rOM



                                    Suppose, you could create a virtual memory palace in your mind using a
                                    computer. What rooms and objects would you include to help you remember
                                    important information, like math formulas or historical facts?
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