In order for data to be sent from one device to data must be physically transported using some form of transmission media. The data can be transported either wired or wirelessly.
All devices connected to the Internet are connected using a combination of technologies, both wired and wireless.
Electrical current passed along cables. Uses multiple twisted pairs to increased transmission rate and lower interference.
Advantages
Much faster and more reliable
Disadvantages
More expensive than copper.
Required replacement of existing hardware.
Data is sent using laser light bursts along a glass filament.
Advantages
Must faster transmission rates
More difficult to intercept
Disadvantages
More expensive than Ethernet.
Wires aren’t as flexible as Ethernet cables.
Requires new and expensive hardware
Transmits data through the air using radio waves.
Advantages
No wires required so quicker and easier to set up.
Allows for mobile computers
Disadvantages
Highly susceptible to interference when multiple devices connected or when you turn on the microwave…
More vulnerable to data interception.
Limited range (100M Max)
Resources