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

GCSE Computer Science

CPU Fetch-Decode-Execute Animation

Sorting Visualiser

C# Cook Books

Online Little Man Computer - CPU simulator

Essential programming skills to learn

Computer Science Homework (years 7, 8 and 9)

Programming software

I Belong: encouraging girls into computer science programme

See also...

Year 11 chemistry revision

Biology

Apprenticeship Information

Service & Leadership

Topic by Topic Past paper Questions

House Weeks

Physics A Level

Languages

Sport and PE

C# Cook Book // MatchingPairs (GUI)

Explore...

Duke of Edinburgh Portal

Welcome to Hartismere!

Year 9 One Lesson Task :: Goal Seek [Spreadsheet]

Bronze DofE Enrolment Letter 2025-2026

Silver DofE First Aid and Expeditions Letter

Bronze DofE Trip to Thorpe Woodlands

48 Hour Scares

External private candidates

Code.Org - Express computer science course

Using social media and examinations/assessments

New...

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

Parents Evening :: Year 8

Harry Potter (One Part) Palace Theatre, London Wednesday, 13 January 2027.

Early Help and Family Help

Operation Mincemeat. Fortune Theatre, London Tuesday, 22 September. Years 9 to 13

Admissions and Application Forms :: Main School and Sixth Form

Jeans for Genes

Paddington The Musical Savoy Theatre, London Thursday, 15 April 2027. Years 7 & 8

Discover...

ICT Computer Science A Level CS Student Information A Levels A Level Work Experience Examinations CIEAG Invigilators Job Adverts Forms Foundation Pastoral Year 11 Events Learnit Options Website Science C# Cook Book Film Studies

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