|The Unix and Internet Fundamentals HOWTO, by Eric Raymond|
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by Milan Verle, 2008. A microcontroller differs from a microprocessor in many ways. The first and most important difference is its functionality. In order that the microprocessor may be used, other components, specialized circuits added as external chips, such as memory must be added to it. Even though the microprocessors are considered to be powerful computing machines, their weak point is that they are not adjusted to communicating to peripheral equipment. In short microprocessors are the pure heart of the computers. On the other hand, the microcontroller is designed to be all of that in one. No other specialized external components are needed for its application because all necessary circuits which otherwise belong to peripherals are already built into it.
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