Topic 3B – Software & programming languages 42. Pearson Edexcel GCSE (1CP2) Topic 3B The purpose and functionality of operating systems 43. Pearson Edexcel GCSE (1CP2) Topic 3B Operating systems – Part 1 44. Pearson Edexcel GCSE (1CP2) Topic 3B Operating systems – Part 2 45. Pearson Edexcel GCSE (1CP2) Topic 3B Utility software 46. Pearson Edexcel GCSE (1CP2) Topic 3B Importance of robust software 47. Pearson Edexcel GCSE (1CP2) Topic 3B Different languages 48. Pearson Edexcel GCSE (1CP2) Topic 3B Characteristics of compilers and interpreters