How do you know what a computer is doing?

An output is a way of making a program communicate with the user of the computer.

Outputs can be used to give information to the user in various ways.

There are lots of different types of output:

•  Text

•  Numbers 

•  Pictures

•  Sounds, speech and music

•  Playing a video or animation

•  Controlling a robot or other electronic device

The piece of code shown below is from a program that tests children's spelling.

For an animated illustration of this lesson click the link below 

sjcs_L123  

and look inside at the script.

Q7. In computing, describe some of the different types of outputs there are.

Look at the script above. The user has typed cat to answer the question "how do you spell cat?".

Q8. What output will the computer display?

End of Lesson 2