Turning on an embedded computer usually requires the following steps:
Determine the type and brand of the computer. Different brands and types of embedded computers may use different switches or key combinations to turn it on. Therefore, refer to the computer's user manual or related documentation for more information.
Find the power button on the computer. The power button is usually located on the side or top of the computer, or you can find an obvious switch around the computer.
Press the power button. After pressing the power button, the computer usually starts and begins loading the operating system or applications.
If your computer has a display, you can use it to confirm whether the computer has started successfully. Usually, when the computer starts, a login window or welcome screen is displayed with some information, such as "Hello, welcome" and so on.
If you can't confirm whether the computer has started successfully through the display, you can try to use keyboard shortcuts to turn on the computer. For example, some computers may use the F1 or F2 key to turn on the computer.
If you can't turn on the computer using any method, you may need to seek help from a professional technician, such as the computer manufacturer's customer support department, or you can seek online technical support services.