Comprehensive Guide to A Level Computer Science Online

Comprehensive Guide to A Level Computer Science Online

The world of technology is continuously evolving, presenting new challenges and opportunities for jobs. If you are considering a career in technology, starting with an A Level in Computer Science is a brilliant choice. This guide provides an in-depth look at what you can expect from our online A Level Computer Science course.

Introduction to A Level Computer Science

A Level Computer Science is a rigorous programme that prepares students for advanced studies in technology, providing a solid foundation in both theoretical and practical aspects of computing. It is recognised by universities worldwide, including prestigious institutions like Oxford, Cambridge, Harvard, and Yale.

Why Choose an Online Course in Computer Science?

Flexibility and Accessibility

Online learning at CHS offers unparalleled flexibility, allowing students to study from anywhere in the world and accommodate their learning around personal commitments.

Cutting-Edge Learning Platforms

Utilising advanced online learning systems, students experience interactive and engaging classes that use the latest in educational technology.

Personalised Support

Small class sizes (our classes have 10 or fewer students) and dedicated support ensure that each student receives the attention they need to excel.

Course Overview

Our A Level Computer Science course typically spans two years and includes a comprehensive curriculum designed to deepen your understanding of key computing concepts. Below is a breakdown of what you can expect to learn.

Course Structure

  • Duration: 2 years
  • Entry Requirements: Grade 7 / Grade A in (I)GCSE Computer Science or equivalent
  • Qualification: A Level Computer Science, CAIE 9618
1. Theory Fundamentals

The theoretical foundation of computer science allows students to understand the underlying principles of how computers operate.

  • Information Representation: Learn how data is represented and manipulated in computers, covering aspects such as number representation, image and sound processing, video technology, and data compression techniques.
  • Communication and Internet Technologies: Delve into the workings of network technologies, including detailed studies on IP addressing, client- and server-side scripting, and the architecture of the internet.
  • Hardware: Explore the components that make up computer systems including input, output, and storage devices, main memory, and the basics of logic gates and circuits.
  • Processor Fundamentals: Understand the heart of the computer, the Central Processing Unit (CPU), studying its architecture, the fetch-execute cycle, instruction sets, and assembly language programming.
  • System Software: Learn about the software that manages computer hardware and software resources, including operating systems, utility programs, library programs, and language translators.
  • Security, Privacy, and Data Integrity: Address the crucial aspects of data security and integrity, learning about measures to protect data and the ethical implications of computer science.
  • Database and Data Modelling: Gain knowledge on how databases are structured and operated, focusing on Database Management Systems (DBMS), relational database modelling, and the languages used to manipulate data (DDL and DML).
2. Fundamental Problem-Solving and Programming

This section focuses on developing problem-solving skills and programming proficiency, which are vital for any computer science professional.

  • Algorithm Design and Problem-Solving: Master the art of constructing algorithms to solve complex problems, and learn about different maintenance strategies to ensure they remain effective.
  • Data Representation in Programming: Understand different data types and structures such as arrays and files, which are crucial for organising and manipulating data effectively.
  • Programming Basics: Get hands-on experience with foundational programming concepts including variable use, control structures (selection, iteration), functions, and structured programming paradigms.
  • Software Development: Learn the complete software development lifecycle, from writing code and testing programs to maintaining and updating software.
3. Advanced Theory

As students progress, they delve into more complex theories and applications in computer science.

  • Advanced Data Representation: Explore complex data structures and learn how real-world data like real numbers and files are organised and accessed in computing systems.
  • Advanced Communication and Internet Technologies: Study the protocols essential for modern networking, including the role of routers, LAN technologies, and packet switching.
  • Advanced Hardware Design: Learn about sophisticated hardware concepts such as Boolean algebra, Karnaugh Maps, flip-flops, RISC processors, and parallel processing.
  • Advanced System Software: Look at the more intricate functions of system software including the role of virtual machines, translation software, and the implementation of operating systems in a virtual environment.
  • Security and Ethics: Dive deeper into cybersecurity, exploring encryption methods, digital signatures, digital certificates, and encryption protocols, as well as the ethical considerations that come with advanced technology.

Each topic is designed to build on the previous ones, ensuring a comprehensive understanding of computer science. This robust curriculum not only prepares students for higher education and jobs in computing but also equips them with critical thinking and problem-solving skills that are applicable in many other fields.

Course Features

  • Homework and Assessment: Regular homework and structured assessments help track progress.
  • Parental Engagement: A unique system allows parents to stay informed and engaged with their child’s education.

Extra-Curricular Activities

To enhance learning, students are encouraged to engage in extra-curricular activities such as online coding clubs, hackathons, and personal projects like website or game development.

Career and Further Education Opportunities

Completing an A Level in Computer Science at CHS opens doors to various higher education paths and careers, including:

  • Software Engineering
  • Cybersecurity
  • Web Development
  • Networking

Graduates typically find high starting salaries and promising job prospects.

Choosing the Right School

When selecting an online school for A Level Computer Science, consider:

  • Accreditation: Ensure the school is accredited and the qualifications are widely recognised.
  • Faculty Expertise: Look for a school with qualified and experienced instructors.
  • Student Support: Check for available student support services and engagement opportunities.
  • Technology: The platform should use the latest technology to facilitate an effective learning environment.


A Level Computer Science is a challenging yet rewarding field of study that offers students a gateway to exciting careers in technology. With the right preparation and support, students can achieve remarkable success and make significant contributions to the tech industry.

Choosing to study online at CHS provides flexibility, access to expert teachers, and the ability to work on personal projects and participate in global competitions. If you’re ready to start your journey in Computer Science, contact us today to enroll.


What is A Level Computer Science?

A Level Computer Science is a comprehensive two-year programme designed to equip students with a deep understanding of both theoretical and practical aspects of computing. It is widely recognised by top universities globally, including institutions like Oxford and Harvard, and provides a strong foundation for further studies and careers in technology.

Why should I consider an online A Level Computer Science course?

An online A Level Computer Science course offers the flexibility to study from anywhere, accommodating your schedule around other commitments. These courses leverage cutting-edge technology to deliver interactive and engaging content, ensuring that students receive a high-quality education with the support they need to excel.

What topics are covered in the A Level Computer Science curriculum?

The curriculum covers a wide range of topics that are fundamental to understanding computing. These include:

  • Information representation and data manipulation
  • Network technologies and internet architecture
  • Core components of computer systems
  • CPU functionality and assembly language
  • Software development and programming basics
  • Database management and security considerations

How does the online course support students in their learning?

Online courses in Computer Science typically offer small class sizes, allowing for personalized attention from teachers. Regular homework and structured assessments track student progress. Additionally, parents can engage actively with educators through platforms that offer detailed tracking of their child’s academic performance.

What are the future opportunities after completing an A Level in Computer Science?

Completing this course opens up numerous paths in higher education and careers. Graduates can pursue degrees in fields such as software engineering, cybersecurity, web development, and networking. The skills acquired are also highly valued in many other industries, leading to lucrative job opportunities and the potential for significant career growth.