I do not know what microphone you are talking about. Most microphones are strong enough to pick up more than one voices. Chances are that you and your kids will be able to use Skype.
Be smarter than the microphone. You click on the microphone button at the top left corner and it should be on. But it depends if you are using a laptop or desktop computer. If you are using a desktop computer there is no microphone. But if using a laptop, click on the microphone button on the top left corner. Then the microphone should turn on.
Any microphone that works with your computer will work with skype. Logitech makes a lot of great microphones. You can find them at Best Buy or Walmart.
The first recommendation of the company, and the most logical, is to check the connection between the microphone and the computer. The second is to check the computer's volume. The remaining recommendations are more technical, and can be found on the official Skype website.
Yes because you need to hear the person you are talking to
No
No, if the microphone is off, they shouldn't hear anything on your end.
Skype is a type of video conferencing software. You would install the software on your computer. To effectively use it however, you would need a webcam and microphone, which are hardware components.
computer cams will record sound also provided the computer has a microphone.
You can use the PSP microphone to make phone calls using Skype.
Nope, you don't need to use a headset if you already have a mic.
Surely. There is a good one on Amazon: http://www.amazon.com/3-5mm-Flexible-Microphone-Laptop-Skype/dp/B00284VD02
A Webcam, a microbit processor, a computer device (iPod, iPhone, iPad count as well as laptops), a Skype account, a microphone (most webcams have them built in), an internet connection, and someone to answer your call.