SCQF Level 5 · Qualifications Scotland
National 5 Computing Science
Taken by most Scottish pupils in S4, Computing Science leads to Higher Computing Science in S5. Here is how the course works, what the assessment involves, and what to expect in the exam.
1 hour 30 minutes
Exam duration
33%
Coursework
120
Total marks
S4
Typical year
How Assessment Works
National 5 Computing Science is assessed across 2 components, totalling 120 marks.
Question Paper
ExamSection 1 (55 marks, mandatory): Software Design and Development + Computer Systems. Section 2 or 3 (25 marks, candidate chooses): Database Design and Development OR Web Design and Development. Set and marked by Qualifications Scotland.
Assignment (Practical)
CourseworkTask 1 (25 marks, mandatory): Software Design and Development practical task — candidates write actual code. Task 2 or 3 (15 marks, candidate chooses): Database or Web Design practical task. Submitted to Qualifications Scotland for external marking.
Grade Boundaries
| Grade | Percentage | What it means |
|---|---|---|
| A | 70% or above | Excellent |
| B | 60–69% | Very good |
| C (Pass) | 50–59% | Pass — required for entry to Higher |
| D | 40–49% | Award (does not count as a pass for Higher progression) |
| No Award | Below 40% | Not awarded |
Grade thresholds are the published Qualifications Scotland standard. Actual cut scores are set by post-marking standardisation and are not published.
What You Study
National 5 Computing Science is organised into 4 course areas.
Software Design and Development
- Programming concepts (data types, arrays, loops, conditionals, subprograms)
- Algorithms and design techniques (structure diagrams, pseudocode, flowcharts)
- Testing and debugging (trace tables, test plans)
- Iterative development process
Computer Systems
- Data representation (binary, ASCII, bitmap vs vector graphics)
- Computer architecture (processor, memory, storage, buses)
- Environmental impact of computing
- Security risks and countermeasures (firewalls, encryption, passwords)
Database Design and Development
- Entity-relationship diagrams
- Data dictionaries and field types
- SQL queries (SELECT, INSERT, UPDATE, DELETE, JOIN)
- UK GDPR and data protection
Web Design and Development
- HTML structure and semantic tags
- CSS styling (selectors, properties, layout)
- JavaScript (mouse events, form validation basics)
- Website structure design and wireframing
- File formats and copyright considerations
Important Assessment Notes
Practical / Lab Component
National 5 Computing Science includes a practical or laboratory component as part of the coursework assessment. This may involve carrying out experiments, writing up practical reports, or completing hands-on tasks under teacher supervision.
Assignment Note
A practical computing assignment — you write real code, build a database, or create a web page. Not a written essay. Candidates choose between database or web development for the optional section.
After National 5 Computing Science
Most pupils who achieve a grade C or above in National 5 Computing Science progress to Higher Computing Science in S5. Higher Computing Science.
Next step
Higher Computing Science guide →
Course structure, assessment and grade boundaries for Higher Computing Science.
Editor’s note
Computing Science has the highest coursework weighting of all N5 sciences (33%). The assignment involves writing actual code — pupils who practise programming outside class hours consistently perform better. The exam is 1hr 30min, shorter than other N5 science exams.
Related guides
Frequently asked questions about National 5 Computing Science
How is National 5 Computing Science assessed?
National 5 Computing Science is assessed through the following components: Question Paper (80 marks, 1 hour 30 minutes); Assignment (Practical) (40 marks, Internally managed). The total is 120 marks, with 33% coming from coursework.
How long is the National 5 Computing Science exam?
The National 5 Computing Science exam is 1 hour 30 minutes. There is also a coursework component worth 33% of the total grade.
What grade do you need to pass National 5 Computing Science?
You need a grade C or above (50% or more) to pass National 5 Computing Science. Grade C is the minimum required for progression to Higher Computing Science in S5. Grade A requires 70%+, grade B requires 60–69%, and grade C requires 50–59%.
Does National 5 Computing Science have coursework?
Yes — coursework makes up 33% of the total grade in National 5 Computing Science. A practical computing assignment — you write real code, build a database, or create a web page. Not a written essay. Candidates choose between database or web development for the optional section.
What do you study in National 5 Computing Science?
National 5 Computing Science covers the following course areas: Software Design and Development, Computer Systems, Database Design and Development, Web Design and Development. Together these give a broad foundation at SCQF Level 5, leading to Higher Computing Science in S5.
What comes after National 5 Computing Science?
After National 5 Computing Science, most pupils progress to Higher Computing Science in S5. See our detailed guide to Higher Computing Science for course structure and assessment information.
Course data sourced from Qualifications Scotland course specifications. Assessment details correct for the 3.0 (May 2023) specification.
Full course documentation available at qualifications.scot.