5.4.2 Communication on Internet
Communication is the most popular use of the Internet, with email topping the list of all the technologies used. Some of the types of communication technologies used also include email discussion groups, Usenet news, chat groups, and IRC. These are unique to networked computer environments and have come into wide popularity because of the Internet. Other technologies, including video and audio conferencing and Internet telephony, are also available on the Internet. They require more multimedia capabilities of computer systems and are more taxing of network resources than the others. They also are adaptations of other technologies to the Internet.
Most of the technologies that are unique to the Internet require communication to be done in text—letters with some symbols and punctuation.
When you’re communicating on the Internet take special care not to give out personal information to strangers and to treat others with respect. Be aware of the risks involved in communicating with people you cannot see and may never meet in person.