Complex embedded software can also be found in aircraft avionics systems, in very complex fly-by-wire systems used in fighter planes and even in missile guidance systems. In contrast, embedded software is used for the overall operation of the device.Įmbedded software can be very simple, such as that used for controlling lighting in homes, and can run on an 8-bit microcontroller with just a few kilobytes of memory, or it can be quite complex such as the software running all of the electronic components of a modern smart car, complete with climate controls, automatic cruising and collision sensing, as well as control navigations. The latter, however, is a special type of embedded software that is written in non-volatile memory (such as ROM or EPROM), which cannot easily be modified - hence the name "firm" - and is used primarily for running or booting up the device. Embedded software is similar to firmware, as they usually serve the same function.
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