Arrange these general stages for entering and using the Basic Input/Output System (BIOS) setup environment.

### Why this is right The setup environment is available during startup, before the operating system takes control, so the computer must first be powered on or restarted. You then use the displayed prompt or designated key to enter setup, make any needed changes, and save them or exit when finished. ### The concept The Basic Input/Output System (BIOS) is firmware, software stored in the computer that starts and checks basic hardware when the computer powers on. Its setup environment lets you review or change certain computer settings before the operating system loads. A startup prompt may briefly show which key to press; the key and timing can vary between computers. Changes made in setup may not take effect unless you save them before exiting. ### The order 1. **Restart or power on the computer.** This begins the startup process, when setup access is available. 2. **Use the startup prompt or key for setup access.** Pressing the indicated key during startup opens the setup environment. 3. **Navigate the setup menus and review or change settings.** You must enter setup before you can work with its options. 4. **Save or exit after making the required changes.** This finishes the session and, if you choose save, keeps the changes. ### Watch out Entering the BIOS setup is different from simply letting the computer start normally: the setup key must be used during startup, often while the prompt is visible. ### Terms - **BIOS**: Basic Input/Output System. Firmware that starts and checks basic computer hardware. - **Firmware**: Software stored in a device that controls its basic functions. - **Operating system**: The main software that runs the computer and its applications. - **Setup environment**: Menus used to view or change computer settings before the operating system loads. ### Remember Start the computer, enter setup during startup, make changes, then save or exit.