GCSE EDEXCEL Topic 3B Operating systems part 1 This video explains multi-tasking, memory management and device drivers. Also in this topic... GCSE EDEXCEL Topic 3B The purpose and functionality of operating systems GCSE EDEXCEL Topic 3B Operating systems part 2 GCSE EDEXCEL Topic 3B Utility software GCSE EDEXCEL Topic 3B Importance of robust software GCSE EDEXCEL Topic 3B Characteristics and purpose of different levels of programming language
