CAMBRIDGE IGCSE Topic 4.1 Operating systems part 2 Also in this topic... CAMBRIDGE IGCSE Topic 4.1 The purpose and functions of operating systems CAMBRIDGE IGCSE Topic 4.1 Interrupts CAMBRIDGE IGCSE Topic 4.2 Assembly language CAMBRIDGE IGCSE Topic 4.2 Compilers and interpreters CAMBRIDGE IGCSE Topic 4.2 Integrated Development Environments (IDEs)