A few days ago, I was reading an article on wikipedia about how musical synthesizers work and I read that initially analog technology was used and later digital technology began to be used. What I uderstood from analog technology was that only one part of the sound was altered, which affected the sound produced as a whole. For example, we vary the frequency of the sound in such a way that it also changes the amplitude and the pitch, resulting in the emission of a completely new sound. But, as I read ahead, I figured out that most modern synthesizers synthesize sounds through either 'FMS (Frequency Modulation Synthesis)' or 'PDS (Phase Distortion Synthesis)'. It told me that in FMS just by altering the frequency, we change the sound and in PDS it told me that just by altering the phase angle, the sound was synthesized. Yet, it called this form of synthesis digital technology. I don't quite understand that, because isn't that the same thing as analog technology (we just alter one thing to synthesize the whole sound)?? So, what exactly is the difference between analog and digital technologies?? In case you need to check, this is the link of the article: http://en.wikipedia.org/wiki/Synthesizer Any help will be appreciated. Thank you.