The computer can store more than one variable in its memory, ... For example, a variable can be used in the program that controls an automatic car park barrier.

In a way it resembles a treasure hunt where the computer must follow the clues and execute commands until it reaches the end of the program and is stopped. What are variables? Variables are used in ...

The computer can store more than one variable in its memory, as long as we give each variable its own name. This is useful as we can use the variable name when we want to use what is stored in the ...