On which side of the content screen must you be to use the INFORM LIST?

The correct answer highlights the requirement for the INFORM LIST functionality within the context of operation on the content screen. When using the INFORM LIST feature, it's specifically necessary to be on the address side of the content screen. The address side is typically where the information regarding addresses of various components is displayed and where instructions can be applied to show or manipulate data structures.

Being on the address side allows for the access needed to display information about specific addresses, which is essential for the INFORM LIST command to function correctly. This feature is often used to provide lists or details tied to specific addresses, making it integral for monitoring and operational tasks that involve addresses in engineering contexts.

The other sides of the content screen—such as the instruction side, output side, and control side—serve different functions and do not support the INFORM LIST feature, thus solidifying the importance of being on the address side to appropriately utilize this command.