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...

CPU Fetch-Decode-Execute Animation

C# Cook Books

GCSE Computer Science

I Belong: encouraging girls into computer science programme

Online Little Man Computer - CPU simulator

C# Yellow Book

Computer Science Homework (years 7, 8 and 9)

Programming software

Sorting Visualiser

Essential programming skills to learn

See also...

Humanities

Science & Innovation

House Weeks

Binary addition 1

Year 9

Professional Services

Year 12 revision

Useful Websites

Creative iMedia

Pastoral Programme

Explore...

unifrog

Hartismere Ofsted Report 2014

MegaProcessor - the largest CPU in the world

Application for Remission from Charges/School Uniform Support

Bronze DofE Enrolment Letter 2025-2026

Sixth Form Course Information

Avatar Maker

Examination Certificates

Examination Result Queries

Vertigo video essay - cinematic influence

New...

LAMDA Performance and public speaking exams 2026-2027

Parking - Hartismere Hospital

Stranger Things, The First Shadow. The Phoenix Theatre, Friday 11th September.

Summer 2026 Examinations

April 2026 Year 10 Mocks

June 2026 Year 12 Mocks

Change of Head of Year 7

Open afternoons

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ICT Computer Science A Level CS Student Information A Levels A Level Careers Examinations Acting Biology Feedback Parent Sixth Form Welcome Notices A2 Learnit Drama Year 12 Governance Headteachers English Literature

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