SLR2.4 – Computational logic OCR GCSE SLR2.4 Why data is represented in binary OCR GCSE SLR2.4 Simple logic diagrams OCR GCSE SLR2.4 Truth tables OCR GCSE SLR2.4 Computing related mathematics Also in this topic... SLR1.2 – Memory SLR1.4 – Wired and wireless networks SLR1.5 – Network topologies – protocols and layers SLR2.3 – Producing robust programs SLR2.6 – Data representation