ROM
Short for
Read-Only Memory, ROM is memory that is capable of holding data and being read from; however, it is not capable of being written to or having its data modified. Unlike
RAM, ROM is
non-volatile and capable of keeping its contents regardless if it has power or not. A good example of PROM is the
computer BIOS as shown in the example picture to the right.
Programmable ROM
Short for
Programmable Read Only Memory,
Programmable ROM, or
PROM is a computer memory chip capable of being programmed. Once the PROM has been programmed, the information written is permanent and cannot be erased or deleted. A good example of a PROM is the
computer BIOS.
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