The graph of overall CS enrollment backs up your comment that there was a decline in STEM degrees in the 80s. Interestingly the next peak of CS degrees hits in

The graph of overall CS enrollment backs up your comment that there was a decline in STEM degrees in the 80s. Interestingly the next peak of CS degrees hits in 2002-3. While the obvious explanation of the dot-com boom fits, I would say students graduating at this time were considerably affected by the 1980s home computing culture and that early experiences with a C64 or other computer could have been positive, not negative, influences on their choice to study CS. (The reason I say this being that I graduated with a CS degree in 2003, so am squarely in that camp, and the dot-com boom had no bearing on that decision - by the time I had picked my A-level subjects and applied to university, the dot-com craziness was not in full swing, though I was in the UK. However, growing up in the C64/BBC Micro/ZX Spectrum era was definitely a big factor in my ensuing nerdiness.)