I will pay for the following essay Network communications. The essay is to be 2 pages with three to five sources, with in-text citations and a reference page.
?? it is networks, which connect computers located mostly in one building, WANs – are networks, which are farther than LANs, however, they connect computers in low distance through the telephone or radio channel, CANs – are networks, which located strictly on the one peculiar location, like the campus of university and so on and the last one is MANs – are the largest networks, which connect considerable quantity of computers, which located in the city. Such networks are very big and have many servers, routers, which allow their functioning (“What is,” 2013).
There are measures of the networks efficiency and one of them is bandwidth. Considering the networks, bandwidth is generally data transfer rate, i.e. amount of some data that can be transferred from one location to another in some specified period of time, however mostly this period is set to one second. Bandwidth is expressed in bps i.e. bits per second. Many modern networks can allow millions of bits per second, and they express it with the Mbps(“What is,” 2011).
Early computers had not access to the network without the special device, it is called NIC. This device allows computers to join the network through some of the channels like wire or radio. Modern computers have preinstalled Computer network interface cards, which are abbreviated to the NIC. Some of the NICs have both wire and radio channels to connect other computers. They belong to the PCI devices(“What is,” 2011).
There are three wired and wireless media for the network transmission and wired ones are: twisted pair, coaxial cable, optical fiber and to wireless media belong: Radio waves, microwaves, infrared. All these media enable networks’ existence (What is, 2014).
There is one situation where there was very hard to enable computers to communicate, I had usual local network connection with one computer and wanted to share my internet connection with it, however, I had PPoE connection and this kind of connection needs
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