One way of looking at it is that there are about the same number of programmers today with a deep understanding of the machine as there were in the 90s. There are just 3-4X more programmers who are just after a career and learn only the skills necessary and follow what seem to be the most employable trends.

Same goes for users. There are about the same number of computer literate users as there were back then. There’s just a new class of iPad/iPhone user who is only a casual user of computers and the net and barely knows what a file is.