According to Wikipedia[1], Millennials are those born between 1980 and 2000. That would make a 16 year old barely a Millennial.
Seems like a strange unit when you have a range from 16 to 35, I don't have a lot in common with the average 18 year old any more.
First PC though not first computer was 1Mhz with 640Kb RAM.
Generational shift is vast, Moores law has been kind!