Hartismere School

Est. 1451. An outstanding coeducational secondary school & sixth form college and England's first academy

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A Level Computer Science

What is it all about?

A level Computer Science builds upon the knowledge and skills developed at GCSE by going into greater depth, particularly with the workings of the CPU, operating systems, web technologies and programming. We have had many successful students who have studied this without taking GCSE computer science, but it would be a steep learning curve.

What do we study?

The course is split into two units at AS (year 12) and three in year 13 for the full A level: 

1. Computer systems: What we learn about includes the workings of the CPU, how software is created and the different types of software, how data is stored and represented in computers, how data is transferred between computers and the impacts of technology.

2. Algorithms and programming: This is all about understanding computational thinking and programming. We do quite a bit of programming using C# to develop experience coding.

3. Programming project: In year 13, students have the opportunity to develop a piece of software of their choice for an end user. They will use an Agile methodology to design, implement and test the program. This is a substantial bit of work but allows students to massively develop their programming ability.

Why would it be useful?

Students have expressed how the problem solving they have developed in computer science has complimented work in other subjects. Even if not actively pursuing a career in the industry, knowledge of how computers operate can only help in the modern world. Every year we have students go on to study computer related subjects at university, degree apprenticeships or straight into employment. The range of careers in the computing industry is massive. There are industries within industries! You have software development, hardware development, database management, web development, cyber security, network management, and many more.

 

We follow the OCR specification

Taking A Level Computer Science

A Level CS: Algorithm Assembly Instructions

Toyota Virtual Plant Tour

How robots are taking over warehouse work

Coding Challenges for GCSE and A Level Computer Science

In this section...

GCSE Computer Science

Computer Science Homework (years 7, 8 and 9)

Essential programming skills to learn

I Belong: encouraging girls into computer science programme

Programming software

CPU Fetch-Decode-Execute Animation

C# Cook Books

Sorting Visualiser

Online Little Man Computer - CPU simulator

C# Yellow Book

See also...

Personal Development

RSHE (Relationships, Sex and Health Education)

Medicine, Health & Social Care

Creative iMedia

Careerometer

Sixth Form

Y6 Primary Transition - Transport of the Future

Energy

Binary addition 2

Professional Services

Explore...

TwitBook - Can you spot the problems with this profile page?

Bronze DofE Enrolment Letter 2025-2026

48 Hour Scares

Duke of Edinburgh Portal

Computerphile Sudoku Python

Hartismere Art & Photography Exhibition 2023

Bronze DofE First Aid Training and Camp Skills Day Letter

External private candidates

Vertigo video essay - cinematic influence

Silver DofE First Aid and Expeditions Letter

New...

IT, COMMUNICATIONS AND AUDIOVISUAL TECHNICIAN

Summer 2026 Examinations

Parent & Carer Perception Survey

Friends of Hartismere - Car Boot Sale

Lead Science Technician

The Wave - FULL REVISION

April 2026 Year 10 Mocks

Science Technician

Discover...

ICT Computer Science A Level CS Student Information A Levels A Level Computerphile A2 Biology Ofsted Personal Development Year 8 Design Technology AS Duke Of Edinburgh Digital Test Careersfair Year 9 Mathematics Prospectus Creative Test Careers

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