What are computer’s main memory and its function?

The main memory is a dynamic random access memory, or DRAM. It is used to store the computer’s operating system, application programs, and data. The main memory is also used to hold the contents of the computer’s registers, which are the small, fast storage locations used by the microprocessor.

The main memory is accessed by the microprocessor through a set of special control signals that are part of the microprocessor’s instruction set. When the microprocessor needs to read or write data to the main memory, it sends one or more of these …