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Difference Between Microprocessor and Micro-controller.

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Microcontroller and Microprocessors are two different words. Many students are confused with this when they first experienced with it.
  Microprocessor is meant by a general purpose microprocessor. Such as Intel’s 8088, 80486, Pentium 1, 2, 3, 4, core 2 duo, i3, i5, i7 etc and Motorola’s PowerPC Family.
  Microprocessor is just an IC fabricated with CPU inside it. When you want to develop a microprocessor system you should use an external RAM (Random access memory), ROM (Read Only Memory), and other peripheral chips externally. As shown in figure below.


Whereas in microcontroller have a fixed amount of RAM, ROM and other Peripherals(such as Timers, Uart modules, analog to digital and digital to analog converters and many more) fabricated inside a single chip plus an external memory support for expansion. That’s why they are also termed as mini-computers. As shown in figure given below.

Microcontrollers are designed for some specific applications according to need of RAM, ROM, and speed …