The maximum Internet speed offered by modern technology.

One of the seemingly simple questions to which there is no definitive answer is the following: “What is the maximum speed of digital data exchange between two computing systems?”

For example, it is known that in the framework of the experimentJapanese technicians transferred data between computers at speeds above two terabytes per second (20 terabits in 2012). However, the cost of implementing such a decision is too high, which does not allow making the technology mass. Such a high result remains the lot of specialized computing systems and prototypes of network equipment. Ordinary computer owners are more interested in the question of what is the maximum speed of the Internet offered by one or another provider.

Necessity

The scope of modern software packages andmultimedia files are increasing at an incredible speed. For example, if the distribution of the well-known Windows XP operating system was placed on a standard 700 MB CD, then subsequent versions require a DVD (partially or completely). Obviously, to reduce the time spent on data transmission, the maximum network speed must be increased. Otherwise, working with many network resources can turn into a complete wait for the transfer process to complete.

Maximum speed ADSL

One of the technologies that is still activelyUsed by some users, it is ADSL. It represents the development of a modem-type connection. It uses the existing telephone lines. The provider on the PBX is installing a special device - DSLAM. The subscriber in turn connects the corresponding modem to the computer. DSLAM is an intermediate link between PBX equipment and subscriber. Compared to specialized cable solutions, the advantage is that if you have a landline phone and a corresponding provider, then an Internet connection can be made as soon as possible.

The maximum speed of such a decision dependsfrom the characteristics of the line, tariff plan and equipment capabilities. So, for the ITU G.992.1 Annex A (B) ADSL standard, the “ceiling” of the download speed is 12 Mbit, and the return is 1.3 Mbit (the channel is always asynchronous). But in the advanced solution ADSL2 + (ITU G.992.5 Annex M mode) the speed increased to 24 / 3.5 Mbps, respectively. Most home users can navigate to 8/1 Mbit at best.

Wired analog

Currently, solutions based ontwisted pair and optical communication lines. In the first case, the data on copper conductors of the cable are transmitted at speeds up to 100 Mbps. Gigabit speeds are rarely provided to ordinary users, since they limit the length of the cable from the switchgear to the subscriber’s computer. Much more technological lines created on the basis of optical lines allow transmitting at least 10 Gbps of data over the fiber, and if we consider the possibility of condensing the number of channels in one fiber, then the total transmission rate can be measured by terabits. When connected to fiber-optic networks, the user is usually provided with from 100 megabits to 1 gigabit.

Wireless lines

Thanks to the proliferation of portable devicescommunication for many of particular interest began to be the question of what is the maximum speed of Wi-Fi. Currently, it is up to 140 Mbps (even for 802.11n devices with 300 Mbps stated). A huge impact on the speed capabilities of wireless communication lines is exerted by obstacles between devices (walls, etc.).