It features the main "Power" button to turn on the computer as well as multiple rows of indicator lights (including Q0-Q13 visible in the photos), various control switches for system operations ...

However, sometimes a computer just won't shut down gracefully and you need to turn it off by holding down the power button. When even this method doesn't work, there are some troubleshooting steps ...

I’ve never had a personal computer with a Turbo button. Not my.KIM-1, not my OSI Superboard II (though I added a jumper and boosted it to 2MHz), not my Radio Shack Color Computers, not my Macs ...

Change what the Computer Power Button does. From the WinX Menu, select Control Panel, and then open Power Options applet. From the right pane, select Choose what Power Buttons do.