full form of ROM
ROM stands for Read Only Memory. It is a class of computer memory which could only be read. Such that the contents of the memory could be read multiple times but could not be written (modified), once written. ROM is a non-volatile type of memory, therefore data in it is retained even after the unavailability of power. Read-only memory is useful for storing software/Data that is rarely changed throughout the life of the system, also known as firmware. ROM is cheap to produce as compared to other non-transient storage mediums and hence experienced widespread adoption of the technology.
