CAMBRIDGE IGCSE Topic 4.2 High-level and low-level languages Also in this topic... CAMBRIDGE IGCSE Topic 4.1 The purpose and functions of operating systems CAMBRIDGE IGCSE Topic 4.1 Operating systems part 2 CAMBRIDGE IGCSE Topic 4.1 Relationship between hardware, firmware and operating systems CAMBRIDGE IGCSE Topic 4.1 Interrupts CAMBRIDGE IGCSE Topic 4.2 Integrated Development Environments (IDEs)