I totally agree with that and manufactures will put a low quality speakers in PC which is wast of extra cost Hi and welcome to MobiFAQ forums.
Personal Computers has no built in speakers, a few Monitors were previously launched with inbuilt speakers but that trend is now gone and you will only find PCs with no internal speaker.
About laptops they have inbuilt speakers , and it is not necessary for you to connect an external speaker to it.
so be clear about this , that there is nothing wrong with your PC hardware or software it is just that the hardware required to produce sound is not present for which you need to plug in your speakers.
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