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...

C# Yellow Book

Online Little Man Computer - CPU simulator

Essential programming skills to learn

I Belong: encouraging girls into computer science programme

C# Cook Books

CPU Fetch-Decode-Execute Animation

Sorting Visualiser

Computer Science Homework (years 7, 8 and 9)

GCSE Computer Science

Programming software

See also...

Year 10

Day of physics at Warwick University

Humanities

Revision for computer science

Topic by Topic Past paper Questions

Student resources

Chemistry

Careers Information for Pupils

Careers in Physics

Food Studies

Explore...

MegaProcessor - the largest CPU in the world

Hartismere School and Sixth Form College Prospectuses

theoutdoorscompany Kit Order form

Bronze DofE First Aid Training and Camp Skills Day Letter

Sixth Form Course Information

Duke of Edinburgh Portal

External private candidates

Examination Result Queries

Artificial intelligence and assessments

SEND Information Report

New...

Summer 2026 Examinations

Print Exhibition at Wingfield Barns

Change of Head of Year 9

June 2026 Year 12 Mocks

Impact Evaluation of LAMDA Exams in Schools

A levels: pre-reading and research materials

Hartismere Family :: Policy Documents

April 2026 Year 10 Mocks

Discover...

ICT Computer Science A Level CS Student Information A Levels A Level Languages Keystage 5 Nutrition A Level Computing History Biology ZEN Physical Education Year 8 A2 Biology Staff Handbook Drama Rules Old Hartisians Writing C# Practice

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