Computer memory and memory of computer

Memory of computer

                                  Memory

Primary memory.               Secondary memo
(RAM and ROM).                   USB pen drive
                                                  Hard disc CD
                                                  DVD HDD
 




About of memory



memory is an internal storage area in the computer system which is used to store data and program other temporary or permanently computer memory 

The computer memory can we widely divided into group primary and secondary



Primary memory
   (  The primary memory or main memory or internal memory. )
   It is the only type of memory that is directly accessed by CPU

This memory available in market RAM and ROM

RAM temporary memory

ROM permanent memory






Secondary memory
       the secondary memory it also known as external memory of computer system the secondary memory is not directly access of CPU the secondary memory storage device hold Tata even when the computer switch off


Like that

HDD CD DVD USB or pendrive
These are external memory in your computer system and is used to and put the system for your PC even when your computer is switch off before

after your system of it is memory not used and not a storage in your computer system