SEC 2027 G3 Computing uses syllabus code K349. SEAB’s syllabus describes Paper 2 as a lab-based examination lasting two hours and 30 minutes. It says the centre provides access to spreadsheet and programming software, including Python and JupyterLab.
Prepare by practising how you solve, test and check tasks in the required environment. Verify the current software and file instructions for your entry before making assumptions about the exam setup.
- Match K349 and Paper 2 to your entry.
- Practise using the relevant spreadsheet and programming tools.
- Check outputs with simple test cases.
- Read the centre’s instructions on reporting and file handling.
Know which skills need lab practice
Use the current K349 assessment description to plan practice. In a spreadsheet exercise, check that formulas use the intended inputs and that results change correctly when the data changes. In a programming task, run the code and compare the output with an expected result.
For example, after writing a routine that groups scores, test one value at a boundary and one in the middle of a group. Explain why both outputs should occur before deciding the routine is ready.
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Rehearse the last check as well as the first
Set a practice task that requires an editable spreadsheet or notebook. At the end, check that the file opens and that your work is where you expect it. Use the actual instructions for naming, saving and submitting files during the examination.
The syllabus describes a centre-based lab paper. Check your own reporting instructions and ask your school or the official candidate contact if any detail is unclear.
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Frequently asked questions
Is K349 Paper 2 a written theory paper?
SEAB’s 2027 syllabus describes it as a lab-based examination.
Can I use the code from a previous O-Level paper for my SEC entry?
Use the current K349 listing and check whether older material matches the present component.
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Official information
Consult SEAB’s 2027 G3 Computing K349 syllabus and the applicable SEC subject listing. Guidance checked on 8 November 2026.