Embedded Systems (GCSE AQA)

What is an embedded system?

• A computer system with a dedicated function within a larger mechanical and electrical system

• A computer system used for general purposes

• A computer system with no specific function

• A computer system with limited processing resources

Imagine you're a secret agent on a mission and you need to use a device that's an example of an embedded system. Which one would you choose?

• A digital watch with a hidden microphone

• A desktop computer with a powerful processor

• A laptop with a high-speed internet connection

• A smartphone with a high-resolution camera

What are some typical properties of embedded computers?

• Low power consumption, small size, rugged operating systems, and low per unit cost

• High power consumption, large size, complex operating systems, and high per unit cost

• Medium power consumption, medium size, basic operating systems, and medium per unit cost

• No power consumption, no size, no operating systems, and no cost

Imagine you're a tech wizard! Why would you custom-design your own embedded systems?

• To optimize size, cost, reliability, and performance for your magical tech application

• To increase power consumption and complexity, because who doesn't love a challenge?

• To make programming and interaction easier, because even wizards need a break

• To benefit from economies of scale, because even magic can't solve everything

Imagine you're a secret agent on a mission. You're surrounded by various gadgets. Which one of these is NOT likely to be an embedded system?

• The traffic lights guiding your escape route

• The factory controllers in the enemy's lair

• The hybrid vehicle you're driving

• The desktop computer in your secret hideout

Imagine you're a tiny computer, living inside a washing machine or a digital watch. What would be a common feature of your life as an embedded system?

• Having limited processing resources

• Having unlimited processing resources

• Consuming a lot of power

• Being really big in size

Imagine you're a doctor in a bustling hospital. Which of these devices that you might encounter during your day is an example of an embedded system?

• The engine management system of your speedy sports car parked outside

• The digital clock ticking away in your office

• The MRI machine you use to diagnose patients

• The traffic lights controlling the rush hour chaos outside the hospital

What are the benefits of mass-producing embedded systems?

• Economies of scale, reducing size and cost

• Increasing power consumption and complexity

• Making programming and interaction easier

• Improving reliability and performance