Draw and explain memory organisation

 

main memory:-

• Due to the direct connection with the CPU it is known as a central memory.
• The main memory holds the data and the Programs that are needed by the CPU.
• The main memory consist of RAM.

Cache memory:-

• Cache memory is at the top level of the memory.
• This is high speed memory used to increase the speed of current programs.

Type of memory

1. RAM - Random access memory.

• RAM is best known form of computer memory.
• It is known as access memory as it can access any memory directly if you know the row and column.

Types:- 1. Static RAM

              2. Dynamic RAM

2. Rom - Read only memory

• It is used for storing programs that are permanently resident in computer.

Types of Rom:- 1. PROM

                           2. EEPROM

                           3. EPROM

                           4. ROM