The Internet The world’s largest network Connectivity and Communications Definition -- ability to connect devices by communication lines to other devices E-Mail Video and Audio Conferencing On-line Services Internet and the WWW (WWW is a service of the Internet) Share Resources
The world’s largest network
The Internet (and World Wide Web) was have today was created by some very bright, talented people who either had vision, or were inspired by other talented people’s visions.
Though their ideas were not always popular, they pressed ahead.
Their perseverance and hard work brought us to where we are today. There is a lot to be learned by studying these people, their early work and keeping in mind what they had to work with.Today, we owe a great deal for the wired world we enjoy, to the hard work of thesepeople.
1977: 111 hosts on Internet
1981: 213 hosts
1983: 562 hosts
1984: 1,000 hosts
1986: 5,000 hosts
1987: 10,000 hosts
1989: 100,000 hosts
1992: 1,000,000 hosts
2001: 150 – 175 million hosts
2002: over 200 million hosts
By 2010, about 80% of the planet will be on the Internet
"Packet switching is the breaking down of data into datagrams or packets that are labeled to indicate the origin and the destination of the information and the forwarding of these packets from one computer to another computer until the information arrives at its final destination computer. This was crucial to the realization of a computer network. If packets are lost at any given point, the message can be resent by the originator."
“We have to be careful”, Tim Berners-Lee warns, “because the sort of Web we end up …will be made by the decisions we make…the places we browse, the sites we setup and links we establish…..we have the answers in our hands”