7516 · AQA AS Level
7516/21
Written Theory
Computer Science · June 2024 · Variant 1
Relative difficulty
Analysis source: AQA
Analysis aligned to the official syllabus and assessment design.
3.8 / 5
150
195 min
Algorithmic simulation and array manipulation within procedural programming.
Cohort performance
Session statistics from official examination reports
Total marks
150
Duration
195 min
Session difficulty
3.8 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
The 2024 series sits firmly at a 4-star difficulty level.
While Paper 2 features accessible data representation conversions and standard logic gate identification, the high-weighting programming tasks in Paper 1 and the extensive 12-mark essay in Paper 2 demand significant analytical skills and precise execution under tight time constraints.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
Programming & Syntax
Weight: 6100%Quantitative
Weight: 583%Architecture & Design
Weight: 467%Multi-Perspective-Perspective-Perspective-disciplinar Networking Protocols
Weight: 350%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Examiner report — national grade boundaries and question-level commentary
Level A
Approx. 70% of maximum mark
Level B
Approx. 60% of maximum mark
Level C
Approx. 50% of maximum mark
Level D
Approx. 40% of maximum mark
Level E
Approx. 31% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
Match the expected response style for “State” questions.
Give reasons and link mechanism to outcome; each point needs a because/so chain.
State features in sequence or list observable properties — do not explain causes unless asked.
Match the expected response style for “Write” questions.
Match the expected response style for “Convert” questions.
Show formula, substitution, and unit; method marks need visible working.
Match the expected response style for “Show” questions.
Match the expected response style for “Simplify” questions.
Time traps
Sections where candidates spent disproportionate time relative to marks
No data available in official reports
Syllabus traceability
Topics linked to questions and mark weighting in this session
Programming (Fundamentals of programming)
68 marks this session
Individual (moral), social (ethical), legal and cultural issues and opportunities
12 marks this session
Representing images, sound and other data
10 marks this session
Structure and role of the processor and its components
10 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Programming (Fundamentals of programming)
Individual (moral), social (ethical), legal and cultural issues and opportunities
Representing images, sound and other data (Fundamentals of data representation)
Individual (moral), social (ethical), legal and cultural issues and opportunities (Consequences of uses of computing)
Boolean algebra (Fundamentals of computer systems)
Representing images, sound and other data
Structure and role of the processor and its components
Networking (Fundamentals of communication and networking)
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
Paper 1 (Practical Programming):
Paper 2 (Written Theory):
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Programming (Fundamentals of programming)
68 marks this session
Practise in RevuiIndividual (moral), social (ethical), legal and cultural issues and opportunities
12 marks this session
Practise in RevuiRepresenting images, sound and other data
10 marks this session
Practise in RevuiStructure and role of the processor and its components
10 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
The 2024 series sits firmly at a 4-star difficulty level.
- 2Message
While Paper 2 features accessible data representation conversions and standard logic gate identification, the high-weighting programming tasks in Paper 1 and the extensive 12-mark essay in Paper 2 demand significant analytical skills and precise execution under tight time constraints.
Teacher briefing pack
One-page session summary for tutors and classroom review
June 2024 2024
Computer Science
The 2024 series sits firmly at a 4-star difficulty level. While Paper 2 features accessible data representation conversions and standard logic gate identification, the high-weighting programming tasks in Paper 1 and the extensive 12-mark essay in Paper 2 demand significant analyt
The 2024 series sits firmly at a 4-star difficulty level.
While Paper 2 features accessible data representation conversions and standard logic gate identification, the high-weighting programming tasks in Paper 1 and the extensive 12-mark essay in Paper 2 demand significant analytical skills and precise execution under tight time constraints.
- Total marks
- 150
- Duration
- 195 min
- Session difficulty
- 3.8 / 5
Session analysis
The 2024 series sits firmly at a 4-star difficulty level. While Paper 2 features accessible data representation conversions and standard logic gate identification, the high-weighting programming tasks in Paper 1 and the extensive 12-mark essay in Paper 2 demand significant analytical skills and precise execution under tight time constraints.
Updated Jun 14, 2026
Paper breakdown
Paper 1 (Practical Programming):
Paper 2 (Written Theory):
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
80% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
Short Answer & Trace Tables
61·28·41%
Practical Coding & Program Amendment
35·4·23%
Calculations & Arithmetic Working
14·6·9%
Logic Circuit Design & Algebraic Simplification
12·4·8%
Extended Response / Essay
12·1·8%
Multiple Choice / Selection
12·6·8%
Assembly Language Programming
4·1·3%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Finite state machines (FSMs) (Theory of computation)
90%90%
Types of program translator (Fundamentals of computer systems)
80%80%
Abstraction and automation (Theory of computation)
75%75%
Difficulty Verdict
The 2024 series sits firmly at a 4-star difficulty level. While Paper 2 features accessible data representation conversions and standard logic gate identification, the high-weighting programming tasks in Paper 1 and the extensive 12-mark essay in Paper 2 demand significant analytical skills and precise execution under tight time constraints.
Where the Marks Are
As is characteristic of the AQA AS specification, Programming (Fundamentals of programming) continues to be the dominant powerhouse, accounting for over 90% of Paper 1 (68 marks out of 75). In Paper 2, marks are evenly distributed between Representing images, sound and other data (10 marks), Structure and role of the processor (10 marks), and the Moral, ethical, legal and cultural issues essay (12 marks). Mastering these core chapters is essential for achieving a high grade.
Examiner notes & key calculations
- Off-by-One Queue Offsets: In Paper 1, Question 18, many candidates struggled with correctly shifting elements within the queue array to close the gap after serving an express customer.
- Lack of Subtraction Workings: In Paper 2, Question 2.4, examiners highlighted that candidates frequently calculated subtraction using decimal conversions first rather than demonstrating true binary addition of a two's complement pattern.
- Imprecise Terminology: On architectural questions, shorthand like "MAR" or "MBR" was penalised when "Memory Address Register" or "Memory Buffer Register" was explicitly requested in full.
Exam tips
Paper format
- Duration
- 1h 30min
- Total marks
- 75
- Weighting
- 50%
- Question types
- Multiple Choice & Basic Representations, Binary Arithmetic & Conversions, Quantitative Hardware/Sound Calculations, Logic Circuit and Boolean Algebra, Processor & Stored Program Concepts, Assembly Language Program Writing, External Storage & Reading Technologies, Structured Evaluation Essay, Network Architecture & Protocols
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.