What do you mean by memory devices? Explain RAM and ROM.

Q. What do you mean by memory devices? Explain RAM and ROM.

Answer :-

Memory unit (Primary/Main Memory) is used as a storage unit for program as well as data. The memory can be both primary and secondary depending upon its location in the computer system. The main or primary memory stores information (data and instructions).

• The memory unit or main memory is divided into:
(a) Random Access Memory (RAM)
(b) Read Only Memory (ROM)

RAM (Random Access Memory):-

It is a read/write memory as it is possible to both read from and write to location within RAM. It is used for primary storage in computers to hold active information of data and instructions. The RAM is a volatile memory as it loses its contents when the power is switched off or interrupted.

ROM (Read Only Memory):-

It is a read-only memory, i.e., the data and instructions are placed in the ROM at the time of its manufacturing and can't be changed thereafter.
ROM is slower than RAM and is used to hold certain essential instructions to check basic hardware components such as booting, procedures to load operating system, and frequently-needed functions.