Computer Science

a named piece of data stored in a computer’s memory which can be accessed and changed by a computer program

the process of stating the name of a variable or constant and defining its data type

assigning a starting value to a variable to let the compiler know that a memory location is required

a value that cannot be changed during the execution of a program

Variables and constants in programs

In this unit pupils will discover computers process instructions. They will recognise the function and tools IDEs provide for developing code and start to develop Python programa which follow a sequence. Pupils will create programs which deal with input and output and make variables to store values.

Programming: sequence

a named piece of data stored in memory that can be accessed and changed

to improve code readability and maintainability

What is the purpose of naming conventions?

declaring a variable as a specific data type

Yes, constants can be declared using a specific keyword.

No, Python does not allow the use of constants.

Is it possible to define a constant in Python?

What variable name would be commonly used to store a first name in Python?

information produced by a computer system

an application that facilitates the writing and running of programs

What feature uses colours to distinguish code elements?

What Python function is used to receive data from the user during program execution?

What Python function is used to display output to the user during program execution?

to display or produce information from the computer

What is the primary purpose of output devices?

This lesson will be removed by end of Summer Term 2025.

Variables and constants in programs

Lesson outcome

This lesson will be removed by end of Summer Term 2025.