Final answer:
Dealing with a system of public address announcement for relocation falls under Computers and Technology. Implementing a system of public address announcements can improve communication and ensure important information is conveyed.
Step-by-step explanation:
The question is about dealing with a system of public address announcement for relocation. This would fall under the subject of Computers and Technology as it involves using a system for managing and broadcasting announcements.
A system of public address announcements for relocation can be implemented using various technologies such as speakers, microphones, amplifiers, and control software. For example, in schools or large buildings, a centralized PA system can be used to make announcements to inform people about relocation or any changes in location.