Grade descriptors for GCSEs graded 9 to 1: computer science

To achieve Grade 8 candidates will be able to:

• demonstrate relevant and comprehensive knowledge and understanding of fundamental concepts and principles including digital systems and societal impacts
• effectively apply fundamental concepts, principles and mathematical skills, using sustained analytical, logical and evaluative computational thinking, to a wide range of complex problems
• develop and refine a complete solution that meets the requirements of a substantial problem

To achieve Grade 5 candidates will be able to:

• demonstrate mostly accurate and appropriate knowledge and understanding of fundamental concepts and principles including digital systems and societal impacts
• appropriately apply fundamental concepts, principles and mathematical skills, using analytical, logical and evaluative computational thinking, to a range of problems
• produce a working solution that meets most requirements of a substantial problem

To achieve Grade 2 candidates will be able to:

• demonstrate limited knowledge and understanding of fundamental concepts and principles including digital systems and societal impacts
• apply fundamental concepts, principles and mathematical skills, using basic analytical and logical computational thinking, to straightforward problems with limited accuracy
• produce a partially working solution that meets some requirements of a substantial problem

Source

https://www.gov.uk/government/publications/grade-descriptors-for-gcses-graded-9-to-1/grade-descriptors-for-gcses-graded-9-to-1-computer-science