How is the DELETE key utilized?

The DELETE key is primarily used in contexts where editing of data or instructions is necessary. When the statement mentions the need to be "on the address side and in editing mode," it highlights two essential conditions:

1. Address Side: This indicates that you are currently working with the portion of the program or interface where addresses are being managed or manipulated. This is often crucial for operations related to data management.

2. Editing Mode: Being in editing mode suggests that the system is prepared to accept modifications to the data displayed. In this state, the DELETE key functions as intended — to remove or delete the selected data or instruction without affecting other parts of the system.

Together, these conditions ensure that the DELETE key performs its function effectively and accurately within the intended operational context, which is vital for maintaining data integrity and managing program flow.