In computer networks and telecommunications, a dedicated line is a communications cable or other facility dedicated to a specific application, in contrast with a shared resource such as the telephone network or the Internet.
In practice, such services may not be provided by a single, discrete, end-to-end cable, but they do provide guarantees of constant bandwidth availability and near-constant latency, properties that cannot be guaranteed for more public systems. Such properties add a considerable premium to the price charged.
As more general-purpose systems have improved, dedicated lines have been steadily replaced by intranets and the public Internet, but they are still useful for time-critical, high-bandwidth applications such as video transmission.
Famous quotes containing the words dedicated and/or line:
“Picture the prince, such as most of them are today: a man ignorant of the law, well-nigh an enemy to his people’s advantage, while intent on his personal convenience, a dedicated voluptuary, a hater of learning, freedom and truth, without a thought for the interests of his country, and measuring everything in terms of his own profit and desires.”
—Desiderius Erasmus (c. 1466–1536)
“The line it is drawn
The curse it is cast
The slow one now
Will later be fast
As the present now
Will later be past
The order is
Rapidly fadin’.
And the first one now
Will later be last
For the times they are a-changin’.”
—Bob Dylan [Robert Allen Zimmerman] (b. 1941)