They’re everywhere, seeming since the advent of electronics beeps have been used. Why?
In: Technology
Most computers have a piezoelectric speaker, this is a very simple speaker that is not capable of creating varying sounds, just different levels of a beep/buzz noise. But it has the advantage of being very cheap, compact and easy to use. This is the same kind of speaker you’ll find in alarm clocks, microwaves, digital watches, etc..
Computers in the past used to use these piezoelectric speakers as their main speakers, as they weren’t powerful enough to play normal sounds/music. These days, these tiny speakers are only used for diagnostics. If the computer can’t turn on far enough to startup the video hardware, it will play a certain pattern of beeps to indicate what’s wrong.
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