SLR06 – Hardware and software AQA GCSE SLR6 Hardware and software – an introduction AQA GCSE SLR6 The purpose and functionality of system software AQA GCSE SLR6 Operating systems part 1 AQA GCSE SLR6 Operating systems part 2 AQA GCSE SLR6 Utility system software Also in this topic... SLR04 – Network typologies, protocols and layers SLR07 – Ethical, legal and environmental issues SLR08 – Algorithms SLR11 – Computational logic SLR12 – Classification of programming languages