Key Stage 5 Computer Science

OCR A-Level Computer Science

This is an optional subject.


Contact Time

Pupils will have nine lessons each fortnight.


Computer Science A Level 

This course gives a general grounding in Computer Science, including an understanding of computer systems, the principles of programming and the solving of problems. Topics delivered put computational thinking at its core, helping students to develop the skills to solve problems, design systems and understand human and machine intelligence.


Exam Information

Component 01: Computer Systems Theory Paper 1 – 2 hour and 30 minutes, written paper (40% of total A Level)

This unit will develop learner’s knowledge on the internal workings of the Central Processing Unit (CPU) and the exchange of data. It will also look in depth at software development, data types and legal and ethical issues relevant to Computer Science.


Component 02: Algorithms and Programming Theory Paper 2 – 2 hour and 30 minutes, written paper (40% of total A Level)

This unit is about acquiring knowledge and understanding of Algorithms and programming. Component (02) relates principally to problem solving skills needed to apply the knowledge and understanding encountered in Component (01).


Component 03: Programming Project, externally assessed (20% of total A Level)

Programming project component is a practical portfolio based assessment with a task that is chosen by the learner and is produced in an appropriate programming language of the learner’s or teacher’s choice.


The student will choose a computing problem to work through demonstrating: 

  • Analysis and design skills involved in problem solving using a computer;
  • develop, document, implement and test the system produced;
  • produce a word processed report on the work carried out;
  • evaluate the computerised solution.