Perfect Computer Notes

INTERNET Internet is the network of networks around the world. It is made up of thousands of smaller networks. It is a global communication system. We can send and receive information from a city or country to another through Internet. Main components of Internet are computers, communication media and modem etc. Modem is used to send and receive information though telephone lines.     Internet provides following main facilities:                ·    E- mail                ·    Chat                ·    Searching jobs                ·    Advertising for business                ·    E-commer...