What is the internet?
The internet was rooted in the 1960's from a US government research project run by Advanced Research
Project Agency (ARPA). It is the worlds largest wide area network (WAN). The internet is made up of lots of smaller networks. In December of 2011 more than 2 billion people used the internet regularly. Everything you search and find goes through the internet.
What is a protocol?
Protocols are the rules for how computers in
a network communicate with each other. They control connection, communication and data transfer between two computing endpoints. ARPANET was the first network protocol in 1969.
What is DNS?
DNS stands for Domain Name Service, this translates or resolves IP adresses. If we did not have DNS we would have no internet connection. DNS looks up a host name and returns an IP address or the other way around. Applications send a
request called a DNS lookup to the
computer’s DNS server.
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