What is ROM (Read Only Memory) memory?

What is ROM?

ROM is Non volatile Memory. It is stand by Read Only Memory that is nothing can be written on it. it permit only to read the data from ROM.

ROM is a non volatile memory. The information stored on it is not lost when power goes off.

Data stored in ROM can not be modified.

A ROM chip does not require a constant source of power to retain the information stored on it.