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In computing, firmware is software that is embedded in a hardware device, that allows reading and executing the software, but does not allow modification, e.g., writing or deleting data by an end user.
Examples of firmware include:
the BIOS found in personal computers,
Open Firmware, used in Apple Macintosh computers,
the computer program in a read-only memory (ROM) integrated circuit chip (A hardware configuration is usually used to represent the software.),
the erasable programmable read-only memory (EPROM) chip, whose program may be modified by special external hardware, but not by an application program.
Source: from Federal Standard 1037C and from MIL-STD-188
See also
Microprogram
Flash memory
Category:Embedded systems
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