What is start the machine?

As an AI language model, I assume you're referring to starting a computer. Here are the steps to start a computer:

1. Press the power button: Locate the power button on your computer's tower or laptop and press it to turn it on.

2. Wait for the computer to boot up: The computer will start loading up the operating system (like Windows or macOS). This may take a few minutes.

3. Enter your password (if required): If your computer requires a password to log in, enter it when prompted.

4. Use your computer: Once the operating system has loaded up, use your mouse or touchpad to navigate to your desktop or open any applications or files you want to use.

Note: If your computer doesn't start or has any issues, try checking the power source, cables, and connections. If you're still having problems, consult with a professional.