Demand Paging in OS (Operating System): Examples, Advantages, Working

Digitalthinkerhelp29 Jun, 2022Technology

Demand paging is a process of swapping in the Virtual Memory system. In this process, all data is not moved from hard drive to main memory because while using this demand paging, when some programs are getting demand then data will be transferred. But, if required data is already existed into memory then not need to copy of data. The demand paging system is done with swapping from auxiliary storage to primary memory, so it is known as ?Lazy Evaluation?.