Memory Management: Paging and Segmentation

Memory management is one of the key tasks that operating systems complete. Some of the key tasks within this are explained, before the concepts of paging and segmentation are explained, compared, and evaluated with relation to physical and logical memory. The concepts of internal and external fragmentation are explained. Made for OCR A Level Computer Science Paper 1 (H446). Part of the 1.2.1 Systems software topic: https://www.youtube.com/playlist?list=PL04uZ7242_M6SSi80XKS3qOJZGePdD0tm Full Paper 1 playlist: https://www.youtube.com/playlist?list=PL04uZ7242_M46xMfDhdEi1_DuJJ3qI4wl 0:00 What the OS does to manage memory 2:26 The difference between logical and physical memory 4:50 How paging works 9:50 Evaluating paging 13:28 How segmentation works 17:39 Evaluating segmentation