At first, data networks were wired and low-speed, later high-speed wired networks appeared. But the idea of creating something new excited many minds, and now there is a wireless network. Let's deal with this new concept.
So what is wi-fi? Wi-Fi involves the transfer of information wirelessly. This system allows you to connect to a network wirelessly using radio signals. Many people know that radio waves are the longest waves in the spectrum, their length can vary from the size of a football to the size of a volleyball field. Using radio waves, signals are transmitted to radios, televisions, mobile terminals and more.
Understanding what Wi-Fi is, it is worth touching on the concept of an access node. It is customary to understand it as the designed node of the local wireless network, on which the tasks of the central transmitter and receiver of this network are entrusted. An access node typically consists of equipment including an antenna, a radio transmitter, and an integrated network adapter. Now we can touch on the term Hotspot, which is commonly understood as a territory equipped with access nodes that allow the client to connect to the network. Such a territory may be available in various areas of business, at home; Wi-Fi is widely available at airports, hotels, cafes and other places where it is provided for free or for a very reasonable fee.
Understanding what Wi-Fi is, it is worth saying about other concepts. Hotspot is the coverage area of one or a number of interconnected nodes for access. It can cover different spaces. This may be a small room where the walls are made waterproof, or an area of several square kilometers where several access points are located. In this way, the so-called mixed, or cellular, connection can also be organized. Thanks to this technology, a peer-to-peer connection is provided that allows devices to communicate directly with each other. A similar method is often used for network games, as well as when working with various electronic applications.
The organization of a wireless network at the initial stage was fraught with many problems regarding the interaction of various devices. After that, an association called the Wi-Fi Alliance began work on this issue in order to meet the needs of users by improving technology. If the device has the stamp "Wi-Fi Certified", then this is a guarantee for customers that it will interact with similar devices. Such products are able to use an arbitrary access node that allows communication with other devices that have the appropriate certificate.
Now we can say about the SSID device and its purpose. Their distribution is directly related to the service for setting the identifier. Thanks to this code, it is possible to connect all the packets on the wireless network. The code includes numbers and letters. Devices trying to connect to each other wirelessly must use the same code. The process of such a connection is called association.
So, if you still do not understand what Wi-Fi is, then you can talk about the important components of Wi-Fi devices. There are two components that are considered to be the main ones. These are computer devices, including radio technologies, and low-power devices - access nodes connected to a local network or the Internet on a wireless basis. They are interconnected by means of a free radio range, which is specially created for users.