ROM is Read Only Memory. Normally, data is fabricated into the ROM chips by the semiconductor manufacturer. Special mask(s) have to be made to store this data.
Besides ROM chips there are PROM chips, where P stands for Programmable. In these chips, data can be stored by the end user. EPROM is Erasable PROM. A new type of ROM is OTP ROM (One Time Programmable).
ROM = Read Only Memory
This is a permanent storage device, usually a chip or an optical disk.
Depending on the device, it is written to once, and then is read-only
There are some variations, including PROM (Programmable Read Only Memory) and EPROM (Erasable Programmable read only memory)
Programs stored on ROM chips are called firmware. The motherboard stores the keyboard controller support program on the ROM chip.
A microwave oven according to the invention have one-chip microprocessors including a ROM, a RAM and an I/O port. In the ROM a permanent program for controlling the RAM, a data input unit and a display unit is stored. Data is coupled from the data input unit and stored in the RAM according to the permanent program.
You might be talking about the BIOS, the Basic Input Output System stored on a ROM chip on the Computer Mainboard. It is the initial boot code run by the pc.
chips with memories are worrying. don't eat them or they will lose their memory!
Movies, music
In the computing world, permanent data is stored in ROM (Read Only Memory).
Rom is a non-volatile memory. A computer system needs it because it stores the data permanently. If there is no ROM the data can be stored only until the system is on. Once the system is off, all the data stored in RAM(volatile memory) will be lost. So, ROM is used to store the data for a desired period of time.
roughly 700MB
2
By accessing the setup program stored in ROM BIOS.
ROM chips are found not only in computers; many appliances and even toys contain ROM chips. toys contain ROM chips.
ROM is involatile because its name means Read Only Memory, hinting that the data stored on it cannot be altered. The word involatile means long term and not changeable.