What is rom meaning?

ROM, short for Read-Only Memory, is a type of computer memory chip that permanently stores data. Unlike random access memory (RAM), which stores data temporarily and is erased when the computer is turned off, ROM retains data even when the computer is turned off. ROM is used to store critical software and firmware that must not be modified or lost. Examples of ROM in a computer include the BIOS (Basic Input/Output System) that initializes the computer's hardware and allows it to boot up, and the firmware that controls the operation of devices such as hard drives and printers. There are several types of ROM, including PROM (Programmable ROM), EPROM (Erasable Programmable ROM), and Flash memory, which is commonly used in devices such as USB drives and digital cameras.