Computer - Read-only Memory (ROM) is an English term for computer data storage medium. ROM stands for Read-Only Memory, ROM is one that exists in computer memory. ROM is usually permanent, meaning that the program / data that is stored in ROM is not easily lost or changed while power failure.
Storing the data in ROM can not be done easily, but reading data from ROM can be done easily. Usually the program / data contained in ROM is filled by the manufacturer.Because of these properties, ROM is used to store the firmware (software that is closely related to hardware).
One example is the ROM BIOS ROM that contains the basic program a computer system set up / prepare all equipment / components in the computer when the computer is turned on.
Modern ROM found in the form of IC, just as the storage medium / other memory such as RAM. To distinguish it needs to read the text that are listed on its IC. Usually starts with 27xxx number, number 27 indicates the type of ROM, xxx indicates the capacity in kilo bits (not kilo bytes).
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