SLR1.1 – Systems architecture OCR GCSE SLR1.1 The Von Neumann Architecture OCR GCSE SLR1.1 How common characteristics of CPUs affect their performance OCR GCSE SLR1.1 Embedded systems Also in this topic... SLR1.4 – Wired and wireless networks SLR1.5 – Network topologies – protocols and layers SLR1.6 – System security SLR2.4 – Computational logic SLR2.5 – Translators and facilities of languages