Hartismere School

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

Home Login

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# Cook Books

Sorting Visualiser

Computer Science Homework (years 7, 8 and 9)

CPU Fetch-Decode-Execute Animation

Online Little Man Computer - CPU simulator

I Belong: encouraging girls into computer science programme

Essential programming skills to learn

GCSE Computer Science

Programming software

C# Yellow Book

See also...

Year 9

Careerometer

Personal Development

Hartismere 200

Y6 Primary Transition - Transport of the Future

GCSE Past papers and mark schemes

Programming

Public Services

Science & Innovation

Apprenticeships

Explore...

Examination Result Queries

IT, COMMUNICATIONS AND AUDIOVISUAL TECHNICIAN

Examination Certificates

Sixth Form Course Information

Ofsted Report February 2010

Duke of Edinburgh Portal

Bronze Qualifying Expedition September 2025

Vertigo video essay - cinematic influence

Using social media and examinations/assessments

Hartismere Art & Photography Exhibition 2023

New...

E-Safety

Summer 2026 Examinations

Open afternoons

Change of Head of Year 9

April 2026 Year 10 Mocks

Hartismere School & Sixth Form College

Dracula podcast

Vacancies

Discover...

ICT Computer Science A Level CS Student Information A Levels A Level Website Welcome Vacancies After School Clubs College Year 12 Link Girls A2 Biology Year 9 Tasks Safeguarding C# Recipes Geography Code.Org Rules Year 7 Computing

Uh-oh - we were unable to load our website on your browser so we're showing you a plain HTML version.

We use many features found in modern browsers and regrettably yours seems incompatible.

However this legacy version contains (very, very nearly) all the same content. Each page is rendered on our server and doesn't rely on any browser features except the odd font. It doesn't even need Javascript or fancy CSS. It's like being in 1995!

Your browser is reporting itself to us as Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com). Please consider updating your browser to make the most of our website.

If you would like to try our proper website again - you can do so here...