A process in a suspended state is swapped out of main memory (typically to disk) to free up space in main memory.

In the five state model, a new process is not automatically ready to be dispatched  and may be kept in the New state until it is admitted to the Ready state.

In a system that uses multiple queues, the order in which processes wait for I/O events and the order in which the events occur is guaranteed to be the same.

The transition from "Running " to "Ready/Suspend" seems an odd one but can be explained if we consider process priorities.