Final answer:
A sub-idle hung start refers to a scenario where a program fails to start properly and remains stuck without progressing to the idle state.
Step-by-step explanation:
A sub-idle hung start refers to a scenario where a computer program fails to start properly and remains in a suspended or hung state without progressing to the idle state. It is a type of program failure that occurs during the startup process.
For example, if a program gets stuck in an infinite loop or encounters an unhandled exception during initialization, it may not be able to reach the idle state. This can result in the program being unresponsive and consuming system resources without performing its intended tasks.