Satisfactory Essays
1. An overview on how networks have impacted on our daily lives, and the extent to which networks have ‘converged’. The section should also contain a discussion of the more popular networked communication ‘tools’.
We now live in an age where we can get information as and when we need it, where we can communicate with others around the world almost instantaneously and send information to or inform certain individuals as and when we want. Because of resources such as the internet and devices like our mobile phones and our computers we rely Networks, without Networks our daily lives would be very different.
Before Networks the Human Network was once limited to only face-to-face communications. With new technologies and media breakthroughs the extent of communication is ever growing. Because of this, the ways in which we choose to communicate, for whatever reasons, are effecting how we live our daily lives. For example, now, if we want to check the weather or our banking we can go on our computers or mobile phones and we can do this instantly by connecting to the Internet network. Before these devices, we had to use older communications such as watching our TV or physically having to go to a bank or ATM to get this information. A big difference between then and now is how information is now readily available as and when we want it. If you wanted to get the weather before the internet by watching TV, you would have to wait for the right programme to be on. Having information right in front of us all the time and when we need it, our daily lives and routines have adapted and changed along with the evolution of networks.
Computer networks and their capabilities are ever evolving. Early networks were limited to how data could be sent acro...

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...n as a layered stack that shows how the protocol is implemented. The uppers layers of this stack are concerned with the content of the message and the lower layers are concerned with the transporting the message over a network and providing services to the upper layers.
There are 2 types of network models:
• Protocol Models -
• Reference Models -
Hyper-text transfer protocol (HTTP) – An application protocol and is the data communication protocol for the World Wide Web. A web client and a web server interact, they exchange responses and requests. The protocol defines the content and the formatting.
Internet protocol (IP) – An internetwork protocol encapsulates segments from the TCP into packets, assigns the address and chooses the best path over the network.
Transport control protocol (TCP) –
File transfer protocol (FTP) –
Simple mail transfer protocol (SMTP) –
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