I have 6 desktops and 2 laptops in my house. None of the 6 desktops have a microphone. Testing now on the two laptops, both have a built-in microphone. I was

I have 6 desktops and 2 laptops in my house. None of the 6 desktops have a microphone. Testing now on the two laptops, both have a built-in microphone. I was expecting the microphone would be dependent upon the built-in webcam and at least light up the webcam light when it was "turned on" but that is apparently not the case with either one. I used the built-in Windows Sound Recorder to record ambient sound in the room I'm in just now and there was no indication that it was recording anything. Scary stuff.