mock specific

Question 1

give 5 examples of embedded systems

Answer 1

any 5 from:

• central heating systems
• engine management systems in vehicles
• domestic appliances, such as dishwashers, TVs and digital phones
• digital watches
• electronic calculators
• GPS systems
• fitness trackers

Question 2

what is an embedded system?

Answer 2

a small computer that forms part of a larger system, device or machine

Question 3

what is the purpose of an embedded system?

Answer 3

to control the device and to allow a user to interact with it. they tend to have 1, or a limited number of tasks they can perform

Question 4

when and by whom are embedded systems usually programmed?

Answer 4

before they reach the user, by the manufacturer

Question 5

give 3 advantages of embedded systems over general purpose computers

Answer 5

1. their limited number of functions means they are cheaper to design and build
2. they tend to require less power. some devices run from batteries
3. they do not need much processing power, and can be built using cheaper, less powerful processors