Difference between microcontroller and microprocessor

Often microprocessors and microcontrollers are used interchangeably. But there are some fundamental differences between them.

Microprocessors

• Contain just one or more Central Processing Units (CPU) with cache memory
• Peripherals like RAM and ROM are outside the processor
• Used in machines which perform different kinds of  functions in smartphones and laptops
• Example-Intel Pentium

Intel Pentium 4

Microcontrollers

• Contain CPU, fixed amount of RAM and ROM. 
• Used in machines which are used for specific applications like in traffic lights, automobiles, washing machine, TV remote
• Example- 8085

8085 microcontroller

In this blog, when I mention microchip, I will be referring to the microprocessor if not stated otherwise explicitly.