Be able to output data and information from a program to the computer…

The idea

Display output means a program sends values to the screen so the user can see results. In Python, print() writes text and variable values; in pseudocode, write OUTPUT or PRINT. Output can be literal text in quotes, a variable's current value, or a combination joined with commas or concatenation. For example, print("Total:", total) shows a label and the stored number. The method is: decide what the user needs to see, build the output statement, and check the order and formatting. Assessment asks you to choose the correct output statement, predict exactly what appears on screen, and distinguish displayed text from stored data.

What earns the marks

• Recognises that display output sends values to the screen for the user to read.
• Identifies a correct output statement such as print() or OUTPUT.
• Distinguishes literal text (in quotes) from a variable's value in an output statement.
• Predicts the exact text and values shown when a given output line executes.
• Explains that output does not change stored data; it only displays it.

Common mistakes and how to put them right

• Treating quoted text as a variable.

  Put it right: Is that quotes mark literal text, while an unquoted name refers to a variable's value.

• Assuming output alters the variable.

  Put it right: Is that displaying a value leaves the stored data unchanged.

• Ignoring separators or concatenation.

  Put it right: Is that commas and plus signs affect spacing and how items are joined on screen.

Exam tips

• Trace each output line in order to predict the full screen result.
• Check whether each item is quoted text or a variable name.
• Watch for separators, as they change the spacing shown.