How a microprocessor works?

Answer 1

You have just opened a very large and complex subject that can be answered in many apparently contradictory ways, depending on the view chosen by the answerer. Also a complete understanding of their operation would require 1 to 2 years of college studies.

To severely oversimplify it, microprocessors work like any other computer, but all their various units, registers, and logic are implemented on one chip.

All computers whether microprocessors, mainframes, supercomputers, etc. consist of the following 4 units:

• Arithmetic Logic Unit
• Control Unit
• Memory Unit
• Input/Output Unit(s)

Some microprocessors, called bitslice microprocessors come in chips that implement slices through the various units. These can be configured in different ways to implement custom types of computers. Bitslice microprocessors reached their pinnacle in the middle 1980s with the AMD 2900 family and are rare today.