One long, two short BIOS signals - what does this combination mean?

Often there are such unpleasant situations when working with personal computers, when users encounter various malfunctions and errors. And if the problem is only associated exclusively with any particular software or application, then it is often possible to fix it quite quickly. In contrast to the error associated directly with the system itself, the only notification about which is transmitted by the BIOS through sound signals. These kinds of problems often have the most critical impact on the overall performance of a computer. And for one of the most common errors that the BIOS alerts with one long and two short consecutive signals, literally every home PC owner should be prepared.

What is the role of the BIOS in detecting and alerting the user about system errors?

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