1.1. A webcam is a device that acts as a video camera and sends a video signal into the computer that can be viewed over the Internet. A webcam can be used for various types of activities such as online chatting as well as video conferencing. A webcam can also be used to record video that can be saved to the hard disk or burned to a DVD.
2. One adavantage with seakers is you can turn it up for the whole class to hear and turn it off when you are done. I see no disadvantage.
3. computer speakers
3.1. Speakers are attached to computers for the output of sound. Sound cards are required in the computer for speakers to function. Speakers range from simple, two-speaker output devices to surround-sound multi-channel units.
4. One advantage is if it is portable you can move it from ne computerto the next. a disadvantage is that with some cameras you can not get a good viewof the image you want or it cuts off ones head.
