COMPUTER NETWORKS
Introduction
Communication initially relied on transportation: roads between cities, between NSI Prov / State ian bag and then between states / continent. Then communication can occur remotely via the telegraph (1844), telephone (1867), electromagnetic radio waves (1889), commercial radio ( 1906), television broadcasts (1931), and then through television, the world so much smaller because people can learn and get information about what happened in other parts of the world.
In telecommunication, information conveyed through the signal. There are two kinds of signals:
* Digital: specifically refers to information that the two states represented by 0 or 1. Digital data represented shipped with only two conditions of 0 and 1.
* Analog: continuous signal with the strength and quality variations. For example sound, light and temperature that can vary its strength and kual bag. Analog data is sent in the form of a sustainable, continuous electrical signals in the form of waves.
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Introduction
Communication initially relied on transportation: roads between cities, between NSI Prov / State ian bag and then between states / continent. Then communication can occur remotely via the telegraph (1844), telephone (1867), electromagnetic radio waves (1889), commercial radio ( 1906), television broadcasts (1931), and then through television, the world so much smaller because people can learn and get information about what happened in other parts of the world.
In telecommunication, information conveyed through the signal. There are two kinds of signals:
* Digital: specifically refers to information that the two states represented by 0 or 1. Digital data represented shipped with only two conditions of 0 and 1.
* Analog: continuous signal with the strength and quality variations. For example sound, light and temperature that can vary its strength and kual bag. Analog data is sent in the form of a sustainable, continuous electrical signals in the form of waves.
Read the full More>>>
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