CAMBRIDGE IGCSE Topic 3.1 The role of the central processing unit Also in this topic... CAMBRIDGE IGCSE Topic 3.1 Von Neumann architecture CAMBRIDGE IGCSE Topic 3.1 Embedded systems CAMBRIDGE IGCSE Topic 3.2 Sensors, part 2 CAMBRIDGE IGCSE Topic 3.3 Primary storage, RAM and ROM CAMBRIDGE IGCSE Topic 3.4 Network Interface Cards (NICs)