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Definitions for firmware:

WordNet (r) 2.0 :
firmware n : (computer science) coded instructions that are stored permanently in read-only memory [syn: microcode]

Jargon File (4.3.1, 29 Jun 2001) :
firmware /ferm'weir/ n. Embedded software contained in EPROM or flash memory. It isn't quite hardware, but at least doesn't have to be loaded from a disk like regular software. Hacker usage differs from straight techspeak in that hackers don't normally apply it to stuff that you can't possibly get at, such as the program that runs a pocket calculator. Instead, it implies that the firmware could be changed, even if doing so would mean opening a box and plugging in a new chip. A computer's BIOS is the classic example, although nowadays there is firmware in disk controllers, modems, video cards and even CD-ROM drives.

The Free On-line Dictionary of Computing (27 SEP 03) :
Firmware Software stored in read-only memory (ROM) or programmable ROM (PROM). Easier to change than hardware but harder than software stored on disk. Firmware is often responsible for the behaviour of a system when it is first switched on. A typical example would be a "monitor" program in a microcomputer which loads the full operating system from disk or from a network and then passes control to it.

Related Sites

Firmware...
In electronics and computing, firmware is a term often used to denote the fixed, usually rather small, programs and/or data structures that internally control various electronic...

firmware: Definition from Answers.com
n. Computer programming instructions that are stored in a read-only memory unit rather than being implemented through software.

iPod, iPhone and iPad Firmware Download
How to restore or update your iPod/iPhone/iPad: After downloading the desired firmware below, you can shift-click (PC) or option-click (Mac) the Restore or Update ...
 

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