DSL - DSL is a Digital Subscriber Line where the Internet data travels along a dedicated copper telephone line. In fact the line that the data transfers over can also be used for normal voice conversation as well... both the data and the voice can be transmitted at the same time. Voice and data can be communicated at the same time due to the different frequencies utilized by both.
A copper pair is ran from the central office (a building used to house the company's equipment) to the subscribers home.
DSL is widely available as it can often use existing telephone lines.
FIOS - This is a dedicated Fiber Optics connection. Fiber optics is a cable made of glass strands where the data is actually bursts of light (remember that light travels at 186,000 miles per second). There are 3 different kinds of fiber "runs":
- Fiber to the node (FTTN) - Fiber is ran to a neighborhood enclosure... the signal is then carried to the subscriber using the existing copper wire. The existing copper wire run is known as the "Last Mile".
- Fiber to the building (FTTB) - This is where the fiber run runs from the central office to a large building (apartment complex/office building). The subscribers are then fed the signal through the existing copper within the building.
- Fiber to the home (FTTH) - The fiber line runs from the central office to the subscriber's home... same concept as FTTB (above) where the copper used presently exists in the home.
FIOS is the least available option of the three connections discussed in this article. When it comes to FIOS, Verizon is currently the only game in town.
Cable - With a cable connection the Internet connection is actually a shared connection, unlike DSL or FIOS, where subscribers in a certain area will share the connection. Due to this "shared" model, congestion or bottlenecking can occur when many people get on the Internet at the same time... perhaps at lunch time or after work.
Although cable is widely available it isn't quite as available as DSL.
Speed - Cable and DSL can offer about the same transmission rates while FIOS can be much faster. Realize that all Internet provides now utilize bandwidth throttling. Bandwidth throttling is the practice of slowing down the transmission rates on purpose. Once you have the ability to slow down the transmission rate you can then create different plans (price structures) based on how much subscribers are willing to pay for the higher speeds.
Sheldon Livingston can be found at VSL Computers
http://www.vslcomputers.com
Write to him at sheldon@vslcomputers.com
http://www.vslcomputers.com
Write to him at sheldon@vslcomputers.com
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