What is starvation and aging?

Starvation: Starvation is a resource management problem where a process does not get the resources it needs for a long time because the resources are being allocated to other processes.

            Aging: Aging is a technique to avoid starvation in a scheduling system. It works by adding an aging factor to the priority of each request. The aging         factor must increase the request’s priority as time passes and must ensure that     a request will eventually be the highest priority request (after it has waited long enough)