OCR GCSE (J277) SLR 1.5 Operating systems part 1 This video explains multi-tasking, memory management and device drivers. Also in this topic... OCR GCSE (J277) SLR 1.5 The purpose and functionality of operating systems OCR GCSE (J277) SLR 1.5 Operating systems part 2 OCR GCSE (J277) SLR 1.5 Utility system software
