Explanation

Data and program stored in the Main memory when the processor uses them. The main memory acts as the central storage unit in a computer system. It can be classified into two major units. RAM (Random Access Memory) integrated circuit chips ROM (Read Only Memory) integrated circuit chips Secondary memory: Secondary memory refers to storage devices, such as hard drives and solid-state drives. It may also refer to removable storage media, such as USB flash drives, CDs, and DVD etc. Program Memory: Program Memory (ROM) is used for the permanent saving program being executed. While Data Memory (RAM) is used for temporarily storing and keeping intermediate results and variables.