A hub is a very broad concept. It is used not only in network terminology. Also, for example, there is the concept of a USB hub. This is a device that
Used to connect several different USB devices to the same port. But this is far from the whole range of possibilities for using concentrators of various nature.. . . , , . () – .
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Hubs can be combined with each other, which allows you to build networks of absolutely any topology and size. They also make it possible to carry out backbone connections among themselves, thereby ensuring the implementation of the bus topology. But hubs have one significant drawback: they strongly depend on the topology of the network in which they are used, that is, they are not universal. So, for each topology its own types of hubs are produced.In general, in order to finally understand what a hub is, you need to understand one thing - it allows you to combine the individual devices that make up the network into one global (or rather local) workgroup.
We tried to understand in general terms what a hub is and “what it is eaten with”. Multifunctionality and wide applicability make hubs widely distributed in the modern market of information technologies. With their help, it is possible to solve the most complex tasks of building computer networks and not only them.