Introduction to Microprocessor:

Microprocessor works like a CPU in a microcomputer. It's present as a single IC chip in a microcomputer. Microprocessor is the soul of the machine.

A Microprocessor is a device, which is able to

1. Receiving Input
2. Performing Computations
3. Storing data and instructions
4. Display the results
5. Controlling every the devices that perform the above functions.

The device that performs tasks is known Arithmetic Logic Unit (ALU). A single chip called Microprocessor performs these all tasks together with other tasks.

A MICROPROCESSOR is versatile programmable logic device that reads binary instructions from a storage  device  known  memory  accepts  binary  data  as  input  and  processes  data  according  to  those instructions and give results as input.

Figure explained a programmable machine, which consists of a microprocessor, I/O, memory.  These all 3 components work together to perform a given task.