Final answer:
The two steps of process execution relevant to operating systems are I/O Burst and CPU Burst. I/O Burst involves input/output operations, while CPU Burst involves the process executing commands on the CPU. The terms Memory Burst and OS Burst are not standard in describing process execution steps.
Step-by-step explanation:
The two steps of a process execution typically referred to in the context of operating systems are a) I/O Burst and b) CPU Burst. An I/O Burst is the period when a process is performing input/output operations, such as reading from disk or writing to disk, and is waiting for these operations to complete. A CPU Burst, on the other hand, is the period when a process is actively executing commands on the CPU.
Option c) Memory Burst is not a term generally used to describe a step in process execution. Similarly, d) OS Burst is also not a recognized term for process execution steps. These are not part of the standard process execution model.
In simple terms, a process may involve a cyclical pattern, where the system follows the same path for every cycle, or may involve a more complex dynamic pattern, where the system follows a different path for every cycle. Nonetheless, these descriptions seem to be largely unrelated to the specific concepts of I/O and CPU bursts