Final answer:
An orphan process is what a process becomes after it exits but has yet to report to the parent. It is adopted by the init process and continues to run until it completes its execution.
Step-by-step explanation:
After a process exits but has not yet been reported to the parent, it becomes an Orphan process. An orphan process is a computer process that has been started, but its parent process has terminated or finished. When a process becomes an orphan, it is adopted by the init process, which becomes its new parent. Orphan processes do not have a controlling terminal and continue to run in the background until they complete their execution.