write the main difference between microcontroller and microprocessor why do smart appliances have a microcontroller instead of microprocessor embedded in them ?
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MICROPROCESSOR CONSISTS OF ONLY A CENTRAL PROCESSING UNIT, WHEREAS MICRO CONTROLLER CONTAINS A CPU, MEMORY, I/O ALL INTEGRATED INTO ONE CHIP. ... MICROPROCESSOR USES AN EXTERNAL BUS TO INTERFACE TO RAM, ROM, AND OTHER PERIPHERALS, ON THE OTHER HAND, MICROCONTROLLER USES AN INTERNAL CONTROLLING BUS.
MICROCONTROLLERS ALSO DIFFER FROM MICROPROCESSORS. MICROPROCESSORS CONTAIN ONLY A CPU, AND THEREFORE REQUIRE ADDED PERIPHERALS TO PERFORM TASKS. ... A CONNECTED COFFEEMAKER, ON THE OTHER HAND, ONLY NEEDS TO PERFORM SIMPLE ROUTINES AND TASKS, AND THEREFORE EMPLOYS A MICROCONTROLLER.
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