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Yes, Talk offers webcam chat for those that have webcams. If you don't have a webcam you can still use just the voice feature of Talk with a microphone and speakers.
My HP G72-227wm did not come with a built in webcam. I can only assume that your laptop also came with some software pertaining to a built-in webcam that does not exist. The model does, however have a built in microphone.
You can use skype instant messaging without a microphone and you can still call your contacts but they will not be able to hear you. As long as you have working speakers you will be able to hear them and can type messages just like in msn or yim etc.
No. You will have to use an external microphone.
It is the most common Audio device because most people have computers/laptops with a Webcam with a microphone in it.Therefore people usually just use that instead of a headset.
Yes if your mobile platform Symbian s60v3 or s60v5 or you use Blackberry you can easily use your mobile camera phone as wireless webcam by Mobiola. Here is a detailed explanation of how to setup it : http://newsoftwarecity.blogspot.com/2009/09/how-to-use-nokia-n73-camera-as-computer.html
Mouse, keyboard, joystick, graphics tablet, touch screen, microphone, and webcam. Basically any device that you use to put information into a computer.
You cannot use a Webcam as a projector. A webcam is an input device, not an output device.
A person might use a live webcam at home as a working, cheaper solution to buying a security camera. They can also watch live interactions in the house such as their kids coming home from school.
If you can go on the internet, you can use E-Buddy which is an online messenger. There is also iloveim.com which is the same thing. The only problem with them is that you can't use webcam or microphone.
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.
the use of a microphone is to speak louder