NIBI - Network Mediums Lesson

Network Mediums

Before wireless technologies became available, local area networks were wired. Wired connections today are used less frequently for home, school, and business networks because individuals prefer the portability that comes with a wireless connection. In this lesson you will learn about ways in which we communicate both wired and wireless.

The advantages of using wired technology are many. The connections are faster, more secure, and simple to configure. Another advantage is that wired connections transfer data over cables which typically have a high bandwidth that are shielded against interference. Wired connections are also more secure than wireless connections because a computer can only join a network if it is physically connected by a cable. When users set up a wired connection, they do not have to be concerned about hackers intercepting data. Though the advantages are many, there are some disadvantages of using a wired connection. The cables that offer speed and security limit the mobility of a device. For that reason, desktop computers work better in a wired environment. 

Devices connected to a wireless network do not use cables or wires. Connections are made through radio frequency signals. An example of a connection that is made through radio frequency would be the microwave. You might be thinking of the microwave as the device used to heat food; however, microwaves are an option for transporting data wirelessly. The microwaves referenced are not the device used to heat food but provide another option for transporting data wirelessly. This signal is typically used for large corporate networks.
Like wired networks, a wireless network has its advantages. The ability to move the device from room to room or outdoors is a perk for many users. There are no wires or cables visible and power spikes are less likely to run through cables to damage workstations. Disadvantages include the expense of purchasing wired equipment, speed, security, licensing, and range issues. 

Take a look at the Connecting to Internet video.

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