Answer: The two kinds of Main Memory are Primary Memory and Secondary Memory.
RAM and ROM are the primary memory. RAM is a primary-volatile memory whereas ROM is a primary-non-volatile memory. On the other hand, Hard drive, CD, etc. are the part of secondary memory.
Random Access Memory (RAM)
Below are some points concerned with the RAM:
It is also known as primary memory or main memory.
The information required by the CPU during the execution of a program is stored in the RAM.
There are two types of RAM: Static Random Access Memory (SRAM) and Dynamic Random Access Memory (DRAM).
It is temporary storage.
It is used in normal operations.
Read Only Memory (ROM)
The details on ROM can be read below:
It always retains its data.
It is used in calculators and peripheral devices.
It stores crucial information that is required to operate the system.
There are four types of ROM: MROM, PROM, EPROM, and EEPROM.
The two kinds of Main Memory are
Primary Memory and Secondary Memory are the two types of main memory. The memory unit can be implemented using a variety of memory chips- different speeds, different manufacturing technology, and different sizes.