# A Level Computer Science (9618) tutoring online

> Our A Level Computer Science tutors teach Cambridge International 9618, AQA 7517 and OCR H446. Live 1:1 or small-group online classes cover theory topics from data representation to artificial intelligence, alongside pseudocode, programming practice, algorithm design and support with the practical paper or programming project requirements.

Source: https://www.gradeupinternational.com/a-level/computer-science
Last updated: 2026-10-01
Publisher: GradeUp International (https://www.gradeupinternational.com/)

Taught by: [Abdul Rehman](https://www.gradeupinternational.com/tutors/abdul-rehman).

A Level Computer Science suits students aiming for computer science, software engineering, data science, cyber security or electronic engineering degrees. It extends IGCSE, O Level or GCSE Computer Science, but goes much further into how hardware, operating systems, networks and databases work, while expecting genuine programming fluency. Students who have only written short programs at school usually need structured practice in a real language before the second-year topics on recursion, object-oriented programming and data structures.

Cambridge 9618 has two AS papers, a theory paper and a problem-solving and programming paper, then adds an advanced theory paper and a practical programming paper for the full A Level. In the UK, AQA 7517 sets an on-screen programming paper and a written theory paper, while OCR H446 sets a computer systems paper and an algorithms and programming paper. Both UK boards also include a programming project, assessed as non-exam assessment and worth 20% of the A Level.

Students commonly struggle to trace algorithms accurately, write pseudocode that follows the board's conventions, or explain theory such as floating-point representation and network protocols in precise technical language. The practical paper rewards systematic testing and readable code. Our tutors combine short daily coding exercises with dry-run tables and topic-sorted theory questions, so students build programming confidence and written accuracy together. We guide project work on the UK boards without writing it for the student.

## How is A Level Computer Science examined?

### Cambridge International AS & A Level Computer Science (9618), Cambridge International Education

| Paper | Duration | Marks | Weighting |
| --- | --- | --- | --- |
| Paper 1: Theory Fundamentals | 1 hour 30 minutes | 75 | 50% of AS Level / 25% of A Level |
| Paper 2: Fundamental Problem-solving and Programming Skills | 2 hours | 75 | 50% of AS Level / 25% of A Level |
| Paper 3: Advanced Theory | 1 hour 30 minutes | 75 | 25% of A Level |
| Paper 4: Practical | 2 hours 30 minutes | 75 | 25% of A Level |

2026 syllabus. Series: May/June and October/November.

Official syllabus: https://www.cambridgeinternational.org/programmes-and-qualifications/cambridge-international-as-and-a-level-computer-science-9618/

### AQA A-level Computer Science (7517), AQA

| Paper | Duration | Marks | Weighting |
| --- | --- | --- | --- |
| Paper 1: On-screen exam | 2 hours 30 minutes |  | 40% of A Level |
| Paper 2: Written exam | 2 hours 30 minutes |  | 40% of A Level |
| Non-exam assessment: programming project |  | 75 | 20% of A Level |

Linear: all exams in May/June of one year.

Official syllabus: https://www.aqa.org.uk/subjects/computer-science/a-level/computer-science-7517/specification

### OCR A Level Computer Science (H446), OCR

| Paper | Duration | Marks | Weighting |
| --- | --- | --- | --- |
| Paper 1: Computer systems | 2 hours 30 minutes | 140 | 40% of A Level |
| Paper 2: Algorithms and programming | 2 hours 30 minutes | 140 | 40% of A Level |
| Programming project (non-exam assessment) |  | 70 | 20% of A Level |

Official syllabus: https://www.ocr.org.uk/qualifications/as-and-a-level/computer-science-h046-h446-from-2015/

## What topics are in A Level Computer Science?

- Information representation: Converting negative numbers to two's complement without fixing the number of bits first.
- Communication and networks: Describing the internet and the World Wide Web as the same thing.
- Hardware and processor fundamentals: Mixing up the roles of the MAR and MDR in the fetch–execute cycle.
- System software: Listing operating system functions without explaining how each manages a resource.
- Security, privacy, data integrity, ethics and ownership: Treating validation and verification as interchangeable terms.
- Databases: Normalising a table without removing partial dependencies before moving to third normal form.
- Algorithm design, data types and structures: Losing track of pointer values when dry-running a linked list or queue.
- Programming and software development: Writing pseudocode that ignores the board's conventions for declaring variables and arrays.
- A Level data representation, communication and hardware: Normalising floating-point numbers with the mantissa and exponent signs mismatched.
- Security, encryption and artificial intelligence: Describing asymmetric encryption with the private key used for encryption in a confidentiality scenario.
- Computational thinking and further programming: Writing a recursive function without a base case that stops the recursion.

## How do you get top marks?

- Practise writing pseudocode to the board's published guide, including declarations, loops and file handling.
- Use trace tables for every algorithm question and check the final output against the expected result.
- In theory answers, use technical vocabulary precisely and give one developed point per mark.
- For practical work, test with normal, boundary and erroneous data and show the evidence clearly.
- Read any preliminary material or skeleton code well before the exam and practise modifying it.

## Fees

1:1: PKR 3,500 / AED 140 / GBP 28 per 60-minute class. Small group: PKR 12,500 per month. [All currencies](https://www.gradeupinternational.com/pricing).

## Frequently asked questions

### How can I get an A* in A Level Computer Science?

An A* in A Level Computer Science requires strong programming practice combined with precise theory answers. Code regularly in the language your course uses, solve past algorithm questions with trace tables and learn pseudocode conventions thoroughly. Revise theory topics using mark schemes so your explanations include the technical terms examiners credit. On UK boards, plan the programming project early.

### Is A Level Computer Science hard?

A Level Computer Science is challenging because it combines programming skill with a wide range of theory, from logic gates to networking. Students who already code comfortably usually find the practical side easier, while theory topics such as floating-point numbers and normalisation need careful study. Steady coding practice throughout the course makes the biggest difference.

### Do I need GCSE or IGCSE Computer Science to take the A Level?

You do not always need GCSE or IGCSE Computer Science, but previous study and some programming experience help considerably. Many schools accept students with strong Maths results instead. If you are starting fresh, learn the basics of a programming language such as Python before the course begins, because practical skills are assessed from the first year.

### Which programming language is used in A Level Computer Science?

Cambridge 9618 lets centres use Python, Java or Visual Basic .NET for the practical paper, and written papers use Cambridge's own pseudocode. AQA and OCR allow a choice of high-level languages for programming work and projects. Your school usually decides the language, so practise in that language consistently and learn the board's pseudocode style for written questions.

### Which A Level subjects go well with Computer Science?

Mathematics, Further Mathematics and Physics combine most naturally with A Level Computer Science. Maths is required for many computer science degrees and supports algorithms and logic. Physics suits students interested in electronics and hardware. Economics or Business can also suit those aiming at technology management, depending on university requirements.