A solid-state microchip programmed at the time of its manufacture, that cannot be reprogrammed by a user. Any type of storage media that is manufactured with data in storage that cannot be reprogrammed.
A memory chip from which data can only be read by the CPU. The CPU may not store data to this memory. The advantage of ROM over RAM is that ROM does not require power to retain its program. This advantage applies to all types of ROM chips; ROM, PROM, EPROM, and EEPROM.
ROM chips cannot be written to. Therefore they contain information that never changes. All PC's have ROM chips. When the PC is switched on the Information in the ROM chip is used to test the RAM. ROM does not require a constant electric supply to keep the information intact. Information in ROM is retained should you switch the PC off.
ROM is "built-in" computer memory containing data that normally can only be read, not written to. ROM contains the programming that allows your computer to be "booted up" or regenerated each time you turn it on. Unlike a computer's random access memory (RAM), the data in ROM is not lost when the computer power is turned off.
A microcircuit containing programs or data that cannot be erased. When new data or programs can replace old ones, the microcircuit is called an EROM, for erasable read only memory, or PROM, for programmable read only memory.
(ROM) - The portion of a computer's primary storage that does not lose its contents when you switch off the power and that contains essential system programs that neither you nor the computer can erase. A computer's startup instructions are provided by the ROM, which may contain only simple programs that tell the disk drive where to find and load the computer's operating system. But in today's environment most of the operating system is on ROM chips.
A chip that can be programmed once with bits of information. This chip retains the information even if the power is turned off. When the information is programmed into the ROM, it is called burning the ROM.
Storage space whose contents is not easily lost. Thereâ€™s a lot more of it than RAM, but itâ€™s slow. A bit of misnomer becuase (most of) it can be erased, just not as easily as you would think. Usually, ROM is truely read-only, but not in this case.
The permanent portion of the computer's memory. The contents of ROM locations can be read, but not changed. The ROM in the Commodore 128 contains the BASIC language interpreter, character-image patterns and portions of the operating system.
A type of data storage device that is manufactured with fixed contents. In its most general sense, the term might be used for any storage system whose contents cannot be altered. ROM is inherently non-volatile storage - it retains its contents even when the power is switched off, in contrast to RAM.