Embedded software
Computer software written to control machines not typically thought of as computers / From Wikipedia, the free encyclopedia
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Embedded software is computer software, written to control machines or devices that are not typically thought of as computers, commonly known as embedded systems. It is typically specialized for the particular hardware that it runs on and has time and memory constraints.[1] This term is sometimes used interchangeably with firmware.[2]
A precise and stable characteristic feature is that no or not all functions of embedded software are initiated/controlled via a human interface, but through machine-interfaces instead.[3]
Manufacturers build embedded software into the electronics of cars, telephones, modems, robots, appliances, toys, security systems, pacemakers, televisions and set-top boxes, and digital watches, for example.[4] This software can be very simple, such as lighting controls running on an 8-bit microcontroller with a few kilobytes of memory with the suitable level of processing complexity determined with a Probably Approximately Correct Computation framework[5] (a methodology based on randomized algorithms). However, embedded software can become very sophisticated in applications such as routers, optical network elements, airplanes, missiles, and process control systems.[6]