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Microprocessor:
A microprocessor is a clock-driven, multi-purpose register-based electronic device.
It reads instruction from memory and according to the given instruction, it processes the input data.
A microprocessor also has decision-making functionality in terms of changing the sequence of program execution.
Example: 8085 Microprocessor:
About 8085 microprocessors:
It’s an 8-bit microprocessor.
It’s a 40-pin IC.
It can operate with a 3 MHz single-phase clock frequency and power supply of +5V.
It has 16 address lines.
Lower address buses(0 to 7) are multiplexed with data buses and hence the number of pins could be reduced.
Microcontroller:
A microprocessor along with memory and input/output peripheral devices when embedded on a single.
Here we’ll talk about 8051 Microcontrollers;
The above diagram shows a 40-pin IC of 8051 microcontroller.
About 8051 Microcontroller:
It’s an 8-bit microcontroller.
The 8-bit means it’s data bus size is 8-bit wide.
16-bit unidirectional address bus.
Instruction cycle of 1 microsecond with 12 MHz crystal.
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