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Answer» The difference between microprocessor and microcontroller are: | S.no | Microprocessor | Microcontroller |
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| 1. | The microprocessor is the central PART or heart of the computer system. | The microcontroller is the heart of an embedded system. | | 2. | Microprocessor chip does not have RAM, ROM I/O units and timer. | A single microcontroller chip has CPU, RAM, and ROM. | | 3. | There is no power system feature in a microprocessor. | Power saving feature is there in a microcontroller. | | 4. | A microprocessor system is complex and expensive. | The microcontroller system is inexpensive and straightforward. | | 5. | Microprocessor depends on technology, and so the system can RUN at a very HIGH speed. | A microcontroller depends on its architecture, and hence the system can run up to 200 MHz. | | 6. | Microprocessor runs on the Von-Neumann architecture where data and program can be stored in the same memory. | The microcontroller runs on Harvard architecture, and so data and program memories are separate. | | 7. | The microprocessor is generally used in personal computers. | A microcontroller is used in washing machines and MP3 players. |
Note:- The embedded system market is continually INCREASING, so embedded system interview questions are ESSENTIAL.
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