Final answer:
The Process Image is the collection of program, data, stack, and attributes stored in the PCB, used during a context switch.
Step-by-step explanation:
The collection of program, data, stack, and attributes defined in the process control block is the Process Image. The Process Control Block (PCB) itself is a data structure in the operating system that contains the information needed to manage a particular process. The process image represents the current state of a process that is stored in the PCB and is used during a context switch when the operating system must stop the execution of the current process to resume the execution of another process. The PCB is created when a process is started and is updated throughout the execution of the process.