Paging: Introduction

Space management problem can be solved in two approaches: Segmentation - chop into variable-sized pieces .  drawback : when space is divided into different sized chunks, the space itself gets fragmented, and thus allocation becomes challenging over time. Paging - chop up space into fixed-sized pieces .  Instead of diving space into code, heap, stack, we divide space into fixed sized units we call a page.   View the physical memory as array of fixed size slots called page frames. Each frame contains one virtual memory page.

Advantages of Paging :  Flexibility - with a fully-developed paging