Often when describing electronic communications networks, the term "bandwidth" is used. This is one of the key characteristics of such systems. At first glance, it may seem that a person whose work is in no way connected with communication lines does not need to understand what a channel bandwidth is. In fact, everything is a bit wrong. Many have a home personal computer connected to the global Internet.And everyone knows that sometimes work with the World Wide Web slows down for no apparent reason. One of the reasons for this is that at that very moment the bandwidth of the provider's channel is overloaded. The result is a clear slowdown and possible malfunctions. Before defining the concept of “bandwidth”, we use an example that allows anyone to understand what is at stake.
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In digital technology, the term "baud" is sometimes used. In fact, it means the number of bits of data transmitted per unit of time. During times of slow communication lines (dial-up), 1 baud corresponded to 1 bit in 1 second. Subsequently, with increasing speeds, the "baud" ceased to be universal. It could mean 1, 2, 3 or more bits per second, which required a separate indication, therefore, another system is currently being used that everyone understands.