Final answer:
The question pertains to operating systems and processes in main memory which is a topic under Computers and Technology for college students.
Processes not in main memory cannot be executed immediately as they need to be loaded first, and the memoryless property is actually a probability concept not directly applicable to operating system processes.
Step-by-step explanation:
The question refers to a concept in operating systems, a subfield of Computers and Technology, typically taught at the college level. It discusses the availability of a process for execution that is not currently in the main memory. The fact that a process is not in main memory implies that it cannot be executed immediately because it must first be loaded into main memory.
In the context of operating system procedures, a spontaneous change process usually refers to activities that happen automatically without needing continuous energy or intervention, similar to certain physical or chemical reactions.
However, this analogy is a bit misleading when talking about process execution in operating systems since any transition of a process from secondary storage to main memory (and thus becoming ready for execution) indeed requires some form of energy or work by the system.
Moreover, the memoryless property described is a probability term often associated with certain types of distributions, like the exponential distribution, where the probability of an event occurring is the same no matter how much time has elapsed.
This is not directly applicable to the context of operating system processes, other than as a metaphor for explaining preemptive multitasking where the past execution history of a process does not affect its future scheduling on the CPU.