States of Process

Q1. Explain different states of process?

Ans.

Figure: States of Process

As a process executes, it changes state. The state of a process is defined in part by the current activity of that process. Each process may be in one of the following states:

1. New

The process is being created.

2. Running

Instructions are being executed.

3. Waiting

The process is waiting for some event to occur (such as an I/O completion or reception of a signal).

4. Ready

The process is waiting to be assigned to a processor.

5. Terminated

The process has finished execution.

It is important to realize that only one process can be running on any processor at any instant. Many processes may be ready and limiting, however.