Our grandmothers and even our parents did not know anything about such a device, router. And all because, As for 1985 this year the unit was absolutely not necessary, because we did not hear his name and did not know, what does he look like. But it is in 1985 year in the United States Federal Communications Agency has issued a decree to permit the use of a specific type of radio waves for domestic purposes. In other words, mere mortals Americans - and behind them and ordinary citizens from around the world - were allowed to use the wi-fi connection - or for wireless data transmission between electronic devices. Data on the network transmitted by the Sama data was carried out, is our router, or router.
Why do you need a router?
Of course, the earliest routers significantly different from the modern versions of this instrument. But the technology wi-fi is a favorite of the Americans, Dutch and residents of other countries, that local companies recklessly undertook to produce their own versions of routers. They were used primarily for business purposes. for example, in the Netherlands the first to use a router to create a network between the cash registers in supermarkets. Later they began to use at home - in fact most of us, plus a stationary PCs were laptops, smartphones, tablets, by which also became possible to connect to the Internet. However, routers that time had a significant drawback - they were too different.
Thus, bought from the Dutch company router absolutely could not be used in the average American home, etc.. d. For, that routers can easily be used to connect devices in a single network anywhere in the world, in 1997 he was admitted to the world unified communications standard. Since then he has continually adapted and improved.
Modern routers are able to work with several communication standards. It is from the router work successfully with different communication standards and depends on its quality and price. So what is a router? This device is an intermediary. It receives the signal ISP and distributes it between LAN parties over the airwaves. network participant may be any electronic device with a built-in wi-fi adapter. How does the router finds these same devices? On what basis it works?
How does a router?
Inside each of the router has a routing table. Usually it is set up automatically. The router receives the signal from your ISP, and then, using the routing table, It calculates the shortest path to each of the electronic devices. Along this route, and transmits the data stream from the router to the participants of the local network. Typically, data is transmitted at the same rate, but sometimes some of the processes takes precedence. This feature is especially useful for office work - because sometimes the transmission of a packet of data is particularly important. Then the LAN administrator makes this process a priority.
If you use a router for a home network of consciousness, you can not just go online from anywhere in the room and on any device, but also be able to organize a quick transfer of data between the network participants. So, You can easily forward any photos from your smartphone to your PC or transfer important information from your laptop on the laptop of any member of your family.
so, router - a device, by which the signal is transmitted from the Internet service provider network to the participants. The data is transmitted over the airwaves. The better router, тем с более высокой скоростью и более точно будет передаваться интернет-сигнал или пакет данных от одного домашнего компьютера к другому.