Question 1 (Choose at least one answer) (4points) An embedded system: 1. Is a special-purpose computer system that has specific requirements, performs pre- defined tasks and is completely encapsulated into the device it controls 2. Must compute certain results in real-time without delay, however most other functions do not have specific deadlines. 3. Usually has a virtually unlimited power supply. 4. Is a notion that is concerned with software components only and does not have anything to do with hardware