1.1.3 Embedded Systems Flashcards
What is the definition of a computer systems?
A system that includes input - process - output, and some form of storage.
True or False: A washing machine is considered as a computer system.
True
What would an appropriate input be for a washing machine?
When someone presses a button.
Or, an input from a sensor that measures the temperature of the water in the machine.
Or, a sensor that weighs how much the washing weighs.
Or, a sensor that works out how much water has been put in to the machine.
Or, a timer that sets when to starting rotating the drum.
True or False: The door lock on a washing machine is a type of output.
True.
When the processor in the washing machine decides it is safe to open the door, then it turn off the door lock, which is an output.
One type of computer system is called general purpose. What is the other called?
The other type is called an embedded system.
In what way is an embedded system different to a general purpose system.
The embedded system is designed for a specific purpose. It does not need to have as many functions or features as a general purpose system.
True or False: A general purpose system contains more memory, faster processors and has higher general performance than an embedded system.
True.
It is usually the case that embedded systems need less processing and memory capability because they do less functions.
Is a satellite navigation system an embedded or general purpose system?
Embedded.
Is a fitness tracker an embedded or general purpose system?
Embedded.
Is a personal computer an embedded or general purpose system?
General purpose.
True or False: The electronics in embedded systems tend to be smaller size than in general purpose systems.
True.
This is generally true because they require less memory and less powerful processors.
What is the purpose of an embedded system?
An embedded system is designed to complete a specific set of tasks.
What is one benefit of using an embedded system for a microwave?
The cost of the microwave can be kept as low as possible, but the embedded system requires less powerful or varied components.
What is one benefit of using an embedded system for a fitness tracker?
The size of the fitness tracker can be smaller, because the components use are only for a small set of specific tasks and less memory is needed.
Give three examples of embedded systems.
Any of the following (or other similar ones):
Dishwasher; Set-top-box; MP3 Player; Vending Machine; Washing Machine; Satellite Navigation; Digital Camera; Car Engine Management System; Fitness tracker
