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Instant Messaging |
Skype |
Telephone |
Videoconference |
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Instant messaging is real-time communication through text that one, two, three, or more people can use. The information is conveyed through the internet and can include things like live voice or video calling.
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Skype is a software application that works like a telephone, in allowing people to make voice calls through the internet. It is now being used in many places that can have easier access to internet connections as opposed to telephone connections because they are cheaper.
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The telephone was invented by Alexander Graham Bell. It works by converting a voice to electical pulses, transmits these pulses through a wire, and converts them back to voice at the other end of the line.
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Videoconferencing works like a telephone but includes video. Participants can look and talk to one another in real-time.
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