Final answer:
Locks on computer room doors represent a physical safeguard, which is a security measure to protect against unauthorized physical access to computing resources.
Step-by-step explanation:
Locks on computer room doors illustrate a type of physical safeguard. This term refers to security measures that are designed to deny unauthorized physical access to facilities, equipment and resources and to protect personnel and property from damage or harm.
Physical safeguards are a critical component of an organization's overall security strategy and help to prevent unauthorized access, theft, and damage to valuable computing resources.