A computer uses two types of storage. A main store consisting of ROM and RAM, and backing stores which can be internal, eg a hard disk, or external, eg a USB flash drive.
How computer game consoles use hardware to produce highly interactive game play
Main store (or computer memoryThe part of a computer that stores data.) is divided into Read Only Memory (ROM) and Random Access Memory (RAM).
ROM
ROM is memory that cannot be changed by a programSequences of instructions for a computer. or user. ROM retains its memory even after the computer is turned off. For example, ROM stores the instructions for the computer to start up when it is turned on again.
RAM
RAM is a fast temporary type of memory in which programs, applicationA software program that allows a user to perform a specific task. and dataValues, typically letters or numbers. are stored. Here are some examples of what's stored in RAM:
the operating systemThe software that manages the hardware and software resources in a computer system.
applications
the graphical user interface (GUI)
If a computer loses power, all data stored in its RAM is lost.
