The quality and speed of data transmission at high level, prices for services are not high. True modem itself a bit pricey, but some operators modems lease-purchase. Connecting via a dedicated channel. Now, many providers offer services connect to the Internet via leased line. For a start, I'll specify who the provider. In summary, the Provider is a company that provides services to connect to the internet. In order not to go into technical details, I will simple: a dedicated line – a line of communication (kaknal data).
This connection data is transferred via special cable (fiber or twisted pair), which on the one hand is connected to equipment provider, usually located in the basement or the attic of the building, on the other side of the network card on your computer. And as the data transfer can be wireless, using WiFi connection, which is very convenient when moving within the building. I myself use this method of connection and see it only advantages, it is high, very high quality data transmission, and low cost, and connectivity unlimited package mobility with WiFi connection. The only thing necessary – is the availability of the network card and if you have WiFi, you need a WiFi adapter. Radiointernet – connect with a special antenna. This kind of connection is used if provider for some reason can not stretch the cable to the desired location using the Internet, but can provide a wireless access point. Access point must be within line of sight at a distance no more than 5km away from the desired location using the Internet.