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...

CPU Fetch-Decode-Execute Animation

GCSE Computer Science

Programming software

C# Yellow Book

C# Cook Books

Online Little Man Computer - CPU simulator

Computer Science Homework (years 7, 8 and 9)

Sorting Visualiser

I Belong: encouraging girls into computer science programme

Essential programming skills to learn

See also...

Useful Websites

Humanities

Service & Leadership

Energy

Student resources

Science & Innovation

Technology and Food Studies

Year 8

Charities

Information for Employers

Explore...

A levels: pre-reading and research materials

On your exam day

Careers Information for Parents

Hartismere Art & Photography Exhibition 2023

Acceptable Use policies

Examination resits

Candidate Information - Written exams

Application for Remission from Charges/School Uniform Support

Caught In The Web

External private candidates

New...

Print Exhibition at Wingfield Barns

April 2026 Year 10 Mocks

Examination Arrangements: Summer 2026

June 2026 Year 12 Mocks

Parking - Hartismere Hospital

Open afternoons

Summer 2026 Examinations

New Wolsey Youth Theatre applications are now open for September 2026

Discover...

ICT Computer Science A Level CS Student Information A Levels A Level Year 7 Geography Apprenticeships Leadership Visit Avatar Twitter LMI Print Schools Parent A2 Biology Students Art Work 200 Website ZEN

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...