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A network(Network)

A thing human being and social network cable broadcasting communication by the organization connection that there is a flow (a flow) from a panel point (a node) and the course (a link or an edge) or an electricity communications network by the wireless communication.
It is a circuitry.
It is the compound element which plural circuit parts are included in. Resistance networks.
Graph flow network network model data model in the computer network graph theory - Kind of the data model.
The transportation network that the courses such as a pike or the highway can detour around.
I say the main offices such as general term various companies of the communication system by headquarters unifying them at a post in the district and the center, a branch office, a branch, an office network. I tend in particular to point at the store (a chain store) whole that is a service foothold and a sale foothold.
It is acquaintances and network business related to business. Pyramid selling.
A network(Broadcast)： It is national development of the broadcast network in the broadcast. A national net.

Energy / a material leaves the circuit (a body warmer), and it is a route before coming back to the original place again.

The telecommunications are communication along the signals such as a picture, a sound, the letter including Morse code electrically.

The Telecommunications Business Law defines it as I "send a mark, sound or a picture by cable broadcasting, the electromagnetic method of radio others and stream down it, and receiving it again".

In addition, the broadcast is considered to be the transmission of a message of the communication for the public, and it is the subset of telecommunications, but it is mentioned as the thing which often stands side by side.

There is division called cable broadcasting communication / the wireless communication, but the current communication network puts cable broadcasting / radio together in the right stuff in the right place, and it is built.

The wireless communication is the telecommunications that do not use the line (as transmission channel).
In addition, there can be the thing that I am merely called radio for short.
⇔So that a concept of communicating extends cable broadcasting communication broadly; the thing by light and the sound wave can be included as well as a thing with the electric wave like a mobile telephone or PHS used widely (about the thing by the light in particular, there is a name called the light wireless communication).

There is as follows characteristic.

When if perform mobile communication, cannot but depend on wireless communication, but is going to perform communication between the fixation spots that are not so; of cable broadcasting communication and the wireless communication is, and, as for the gap, it is it with a choice.
I accept the length of the line in the case of the cable broadcasting communication, and expense is piled up if I speak expense to need in the case of each plainly, but there is the side that wireless communication becomes cheaper in the long-distance communication so that I accept the number of the facilities of the transmission and reception in the case of the wireless communication, and expense will be piled up.

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