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

GCSE Computer Science

Online Little Man Computer - CPU simulator

I Belong: encouraging girls into computer science programme

Essential programming skills to learn

C# Yellow Book

Sorting Visualiser

Programming software

C# Cook Books

See also...

Binary addition 2

Apprenticeships

Public Services

LEFT ITEMS IN THE FOOD ROOM

Revision for computer science

Year 12 revision

Pastoral Programme

Binary addition 1

Science & Innovation

Y6 Primary Transition - Transport of the Future

Explore...

Application for Remission from Charges/School Uniform Support

1.2.3 Programming techniques Test #1

Careerometer

Candidate Information - Written exams

DynaMaze - Creating enemies and item pickups

Bronze DofE Trip to Thorpe Woodlands

Hartismere Bursary Criteria

Correspondence from the Exams Office

MegaProcessor - the largest CPU in the world

Bronze DofE First Aid Training and Camp Skills Day Letter

New...

8yS/Sc4

March 2026 Year 11 Mocks

Summer 2026 Examinations

10S2 Moles

11S_Ch1 Potable and Waste Water

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11S_Ch1 Life Cycle Assessments

Examination Arrangements: Summer 2026

Discover...

ICT Computer Science A Level CS Student Information A Levels A Level Avatar Sport SEND Quizlet Videos Results Lessontest Games-Designer Pastoral Economics A Level Computing Year 12 Sociology Year 11 Careersfair Archive

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