GCSE Computer Science - Exam Preparation and Revision Guide - Course Overview - Revision Timetable

Sep 5, 2026

GCSE Computer Science exam preparation material covering the OCR J277 course and both assessment components. The guide outlines what students must know for Computer systems (CPU, memory, storage, wired and wireless networks, topologies, security, system software, and ethical, legal, cultural and environmental concerns) and for Computational thinking, algorithms and programming (algorithms, programming fundamentals, robust programs, Boolean logic, programming languages and IDEs). It provides an overview of assessment structure, useful revision websites and guides, and a week-by-week independent revision timetable.

LanguageEnglish

CategoryExam

FormatPDF

Pages9

Reading Time23 min

AccessFree to download

Course Overview

Revision websites and Revision Guides

Independent Revision and Revision timetable

Command words

Tackling Essay questions and Flowchart symbols

GCSE Computer Science Revision Guidance

OCR J277 course outline

Component 01: Computer systems

Component 02: Computational thinking, algorithms and programming

Assessment overview

Exam dates (still to be confirmed)

Useful Websites

Revision guides

Suggested list of tasks for independent revision

Weekly revision timetable

GCSE Computer Science Exam Preparation and Revision Guide Contents Course Overview3 Revision websites and Revision Guides4 Independent Revision and Revision timetable 5,6,7 Command words 7,8 Tackling Essay questions and Flowchart symbols9 GCSE Computer Science Revision Guidance The course outline for the OCR J277 GCSE Component 01: Computer systems Introduces students to the central processing unit (CPU), computer memory and storage, wired and wireless networks, network topologies, system security and system software. It also looks at ethical, legal, cultural and environmental concerns associated with computer science. Component 02: Computational thinking, algorithms and programming Students apply knowledge and understanding gained in component 01. They develop skills and understanding in computational thinking: algorithms, programming techniques, producing robust programs, computational logic, translators and data representation. Assessment overview | Content Overview | Assessment Overview | | | --- | --- | --- | | Computer systems
● Systems Architecture
● Memory and Storage
● Computer Network, Connections and Protocols
● Network security
● System software
● Ethical, legal, cultural and environmental concerns
● (Data representation) | Computer systems (01)
80 marks
1 hour and 30 minutes Written paper (no calculators allowed) | Worth 50% of total GCSE | | Computational thinking, algorithms and programming
● Algorithms
● Programming fundamentals
● Producing robust programs
● Boolean logic
● Programming languages and Integrated developments | Computational thinking, algorithms and programming (02)
80 marks
1 hour and 30 minutes Written paper (no calculators allowed) | Worth 50% of total GCSE | Exam dates (still to be confirmed) 12/05/2024 Computer systems PM 1h 30m 20/05/2024 Computational thinking, algorithms and programming PM 1h 30m Useful Websites [https://www.ocr.org.uk/Images/558027-specification-gcse-computer-science](https://www.ocr.org.uk/Images/558027-specification-gcse-computer-science)j277.pdf [https://www.gcsepod.com/](https://www.gcsepod.com/) [https://senecalearning.com/en-GB/](https://senecalearning.com/en-GB/) h [https://isaaccomputerscience.org/?examBoard=all&stage=allttps://www.camb](https://isaaccomputerscience.org/?examBoard=all&stage=allttps://www.camb)[ridgegcsecomputing.org/](ridgegcsecomputing.org/) [https://www.csnewbs.com/ocr-gcse](https://www.csnewbs.com/ocr-gcse) [https://www.youtube.com/playlist?list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo](https://www.youtube.com/playlist?list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo) Revision guides Clear Revise OCR Computing for GCSE Computer Systems and Programming OCR Computer Science High Level Language Python New GCSE Computer Science OCR Revision Guide-For the Grade 9-1 Course Suggested list of tasks that you can carry out independently: Re-watching the teaching videos and using the revision sites Isaac Computing, Seneca Learning, BBC Bitesize and GCSEPod. A link to these sites can be found in your google classroom. Use an OCR J277 GCSE Computer Science revision book and work through the activities for each topic. Revise and memorise the Key terminology as we have already practised in class. This can mean writing them numerous times, repeating them and discussing the context in which they are relevant. Use Craig n’Dave videos on areas of the topics that they struggle with. Complete the crash course in Computer Science – the whole series delivered by Carrie Ann Philpin: [https://www.youtube.com/results?search_query=crashcourse](https://www.youtube.com/results?search_query=crashcourse)+in+computer+science Use Seneca and ISAAC Computing website to work through the content and practice exam questions. What do I need to revise for Computer systems and when? | Week | Classwork | Weekly Revision | Other information | | --- | --- | --- | --- | | 06/01/202

FAQs

What topics are included in Component 01 (Computer systems) for OCR J277 GCSE Computer Science?

Component 01 covers CPU, memory and storage, wired and wireless networks, network topologies, network security, system software, and ethical, legal, cultural and environmental concerns. It also includes data representation.

What topics are included in Component 02 (Computational thinking, algorithms and programming)?

Component 02 focuses on algorithms, programming fundamentals, producing robust programs, Boolean logic, and programming languages/IDEs, building on the Component 01 knowledge.

How should students use the independent revision timetable and resources?

Students are directed to follow the week-by-week timetable, complete workbook pages and knowledge organisers for each topic, revisit teaching videos and revision websites, memorise key terminology, and practise exam questions using mark schemes.

Sep 5, 2026

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