CAMBRIDGE IGCSE Topic 3.1 The common characteristics of CPUs Also in this topic... CAMBRIDGE IGCSE Topic 3.1 Fetch-decode-execute cycle CAMBRIDGE IGCSE Topic 3.2 Sensors, part 1 CAMBRIDGE IGCSE Topic 3.3 Virutal memory CAMBRIDGE IGCSE Topic 3.4 Media Access Control (MAC) address CAMBRIDGE IGCSE Topic 3.4 Internet Protocol (IP) address, IPv4 and IPv6