Origin of The Term
Ascher Opler coined the term "firmware" in a 1967 Datamation article. Originally, it meant the contents of a writable control store (a small specialized high speed memory), containing microcode that defined and implemented the computer's instruction set, and that could be reloaded to specialize or modify the instructions that the central processing unit (CPU) could execute. As originally used, firmware contrasted with hardware (the CPU itself) and software (normal instructions executing on a CPU). It was not composed of CPU machine instructions, but of lower-level microcode involved in the implementation of machine instructions. It existed on the boundary between hardware and software; thus the name "firmware".
Still later, popular usage extended the word "firmware" to denote anything ROM-resident, including processor machine-instructions for BIOS, bootstrap loaders, or specialized applications.
Until the mid-1990s, updating firmware typically involved replacing a storage medium containing firmware, usually a socketed ROM. Flash memory allows firmware to be updated without physically removing an integrated circuit from the system. An error during the upgrade process may make the device non-functional, or "bricked".
Read more about this topic: Firmware
Famous quotes containing the words origin of, origin and/or term:
“For, though the origin of most of our words is forgotten, each word was at first a stroke of genius, and obtained currency, because for the moment it symbolized the world to the first speaker and to the hearer. The etymologist finds the deadest word to have been once a brilliant picture.”
—Ralph Waldo Emerson (1803–1882)
“In the woods in a winter afternoon one will see as readily the origin of the stained glass window, with which Gothic cathedrals are adorned, in the colors of the western sky seen through the bare and crossing branches of the forest.”
—Ralph Waldo Emerson (1803–1882)
“There are other letters for the child to learn than those which Cadmus invented. The Spaniards have a good term to express this wild and dusky knolwedge, Grammatica parda, tawny grammar, a kind of mother-wit derived from that same leopard to which I have referred.”
—Henry David Thoreau (1817–1862)