Power-off

Power-off refers to the action or state of completely deactivating or switching off a device, machine, or system by cutting off its electrical supply. This process can be initiated by a user via a button, switch, or software command, or it can occur automatically due to a malfunction, power outage, or scheduled shutdown. The result is the cessation of all operations and functionalities powered by the electrical source. Proper power-off procedures often involve saving data and closing applications to prevent data loss or corruption. The term is commonly used in the context of computers, electronics, and appliances.

Power-off meaning with examples

• Before departing on your flight, the pilot instructed the crew to begin the power-off sequence for all aircraft systems. Each step in the pre-flight checklist, meticulously followed to ensure passenger safety, concluded with a final power-off command. After a comprehensive systems check, the crew reported all systems correctly and the engines went to idle. At this point, the entire process was completed with careful, safe and full awareness.
• The technician performed a scheduled maintenance operation to the server. As part of his routine procedure, the technician initiated the power-off process. The server was a complex machine of high capacity. Following the process, he closed all running applications, saved any unsaved data, and then implemented the power-off signal via the server’s console interface.
• During a sudden thunderstorm, the electricity supply went down. This caused the home's central heating and air conditioning system to immediately enact a power-off protocol. The power-off event was unplanned and resulted in the loss of all stored data and the necessity for a reboot procedure to restore functionality to all home appliances that required an electrical supply.
• After troubleshooting the washing machine, the repairman decided to safely implement the power-off procedure as a final diagnostic step. The process ensured the machine's safety and prevented any potential hazards while accessing its internal components. The power-off sequence was necessary to allow testing of the machine's internal wiring and electronics without the risk of electric shock.
• The project manager instructed all team members to perform a power-off procedure on their computers at the end of the workday to conserve energy and prevent potential system malfunctions. This was a part of the company's environmental sustainability campaign. This power-off practice helped preserve resources for long-term operational efficiency and the overall maintenance of equipment.