Embedded Systems

Question 1

What is an embedded system?

Answer 1

Definition: - A computer system built into a larger machine to provide a means of control.

Question 2

What do embedded systems do?

Answer 2

What do they do? - They perform a specific pre-programmed task which is stored in ROM.

Question 3

What do embedded systems use?

Answer 3

• They use a combination of hardware and software.

Question 4

What are two examples of an embedded system and why are they suitable examples? (4 marks)

Answer 4

1. • A washing machine (1) has a control chip that manages the different program cycles (1).
2. • A traffic light (1) has a control chip that determines when to change to a green or red light (1).