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give 5 examples of embedded systems
any 5 from: • central heating systems • engine management systems in vehicles • domestic appliances, such as dishwashers, TVs and digital phones • digital watches • electronic calculators • GPS systems • fitness trackers
what is an embedded system?
a small computer that forms part of a larger system, device or machine
what is the purpose of an embedded system?
to control the device and to allow a user to interact with it. they tend to have 1, or a limited number of tasks they can perform
when and by whom are embedded systems usually programmed?
before they reach the user, by the manufacturer
give 3 advantages of embedded systems over general purpose computers
• their limited number of functions means they are cheaper to design and build • they tend to require less power. some devices run from batteries • they do not need much processing power, and can be built using cheaper, less powerful processors