Leaving Cert Computer Science Notes

Free Leaving Cert Computer Science revision notes for Higher Level. Browse 21 topics and read online without an account.

21 topicsHigher LevelUpdated 27 Sept 2026

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Revise algorithms, computational thinking, databases and data representation alongside Python, JavaScript, embedded systems and machine learning.

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AlgorithmsIllustrated explanations.11 min read Communication ProtocolsIllustrated explanations, key terms and self-check questions.10 min read Communication Protocols, World Wide Web & the InternetIllustrated explanations, key terms and self-check questions.13 min read Computer SystemsIllustrated explanations.9 min read Computers and SocietyIllustrated explanations, key terms and self-check questions.18 min read Computational ThinkingIllustrated explanations.9 min read Data AnalysisIllustrated explanations, key terms and self-check questions.10 min read DatabasesIllustrated explanations, key terms and self-check questions.9 min read Data RepresentationIllustrated explanations, key terms and self-check questions.16 min read Digital and Analogue InputIllustrated explanations, key terms and self-check questions.10 min read Embedded SystemsIllustrated explanations.3 min read History of ComputingIllustrated explanations, key terms and self-check questions.14 min read HTML/CSSIllustrated explanations, key terms and self-check questions.14 min read JavaScriptIllustrated explanations, key terms and self-check questions.13 min read Logic GatesIllustrated explanations.4 min read Machine Learning and Artificial IntelligenceIllustrated explanations, key terms and self-check questions.14 min read Modelling and SimulationIllustrated explanations, key terms and self-check questions.12 min read Pseudocode and FlowchartsIllustrated explanations.6 min read PythonIllustrated explanations, key terms and self-check questions.11 min read Software Design and DevelopmentIllustrated explanations.10 min read User Experience and User InterfaceIllustrated explanations.3 min read

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