Well, to simply put it, imagine youre on your newly bought/customized PC. Oh ****. You need to download audio drivers. Wait, its the wrong one. Then, ahh finally after a couple of days searching, you found the right one. Starts installing your audio program with success. Starts your first project! Congratulations! Then at that moment youre about to save your finished work that you forgot to save it earlier, this happens:
Uh oh...
Now, imagine youre on your mac. You bought a new mac! Congratulations to that part! If youre not too professional, you dont even have to install programs, GarageBand would do the job fine(if not, then profession programs is required). But then, theres no audio! Oh wait you forgot you connect your head phones, silly you. And then as you are about save your first finished project, a problem occurs! Oh wait, no youre on a mac, so no problems. You save your work, accomplish a new song. And then life goes on happily. Congrats.