Reviewer for Embedded Systems in Computer Engineering.
1
What Is an Embedded System?
A computing system with a dedicated function inside a larger device (e.g., washing machine, car ECU, medical device).
2
Core Components
| Component | Role |
|---|---|
| Microcontroller (MCU) | CPU + RAM + ROM + I/O on one chip |
| Sensors | Input from environment |
| Actuators | Output/action |
| RTOS | Meets strict timing |
💡 Exam Hack
A microcontroller integrates CPU, memory, and I/O on a single chip — a microprocessor does not.
3
Real-Time Constraints
Embedded systems often must respond within strict deadlines — a Real-Time Operating System (RTOS) guarantees timing.
4
MCU vs MPU
| Microcontroller | Microprocessor | |
|---|---|---|
| Memory/IO | On-chip | External |
| Use | Dedicated control | General computing |
| Example | Arduino/PIC | Intel/AMD CPU |
📌 Quick Recap — Master These
Before your exam, make sure you can confidently explain and apply each of the following:
- What Is an Embedded System?
- Core Components
- Real-Time Constraints
- MCU vs MPU
Re-read any section above where you hesitate.