ROM stands for Read-Only memory. It is a permanent memory, where programs are stored while a computer is being created.
Unable to modify and erase stored programs in this memory, they can only be read. Therefore, this memory is called read-only memory.
Also after the device is turned off, the data contained in ROM will not be destructed. Hence, ROM is also called non-volatile memory.
– It is non-volatile and is cheaper than RAM– As they are static they do not need refreshing every time.
Advantages of ROM
Circuits are simple and ROM is more reliable than RAM.– Data can be stored permanently– It helps to start the computer and loads the OS.
– ROM is read-only, cannot be modified.– If changes are required, it is not possible.
Disadvantages of ROM
ROM is inexpensive, can keep data on a permanent basis, but it has its own set of drawbacks such as hard to change the data for a fixed period of time.Visit Blog to read more...