Webcams are similar to digital video cameras. But they do not have separate memory.
They directly connected to the computer.
The information that webcams picks up are directly transmitted directly to the computer.
Most of the computer systems now have a webcam built into the top of their monitors as standard equipment.
Advantage:
Webcams can be left on constantly, only being activated as required.
they allow people to keep in contact with each other without travelling.
Disadvantages:
Webcams have a very limited features
The picture is often low quality.
They needs to be connected to the computer.
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