Porn has always driven tech. I bet the first text ever put on a clay tablet started with “I never thought anything like this would ever happen to me but…”
Tey haven’t yet found the *earliest *cave drawings. Crude paintings of boobs.
Porn DVD’s are also one of the few ones that I know of that use the ‘multi-angle’ feature.
I’ve always said that any time there’s a technological revolution on the horizon, human nature makes us first examine the new whatever-it-is to see whether we can kill each other with it, and immediately thereafter (almost simultaneously) whether we can fuck it or use it to fuck better. Investigation into all other possible applications lags behind these two priorities.
For an entirely work safe look at techno porn throughout the ages, this essay is pretty good.
Porn has been a driving force behind better and better ‘Internet’ (even before that word) service ever since the day some geek figured out he could draw some boobies by using monospace font.
I remember when VCR’s first came out. There wasn’t a lot of content for them, the blank tapes were pretty expensive, the machines could be over $2,000, and basically they were just a way to record television. But they flew off the shelves, for one reason: porn. I had a friend who sold them, and he said that they couldn’t sell the things at all until they hit upon the idea of throwing two free porn tapes in on the deal. Copies of porn tapes at that. If the purchaser was a male alone, they’d get into a ‘test’ discussion to see if the guy was receptive to porn. Something like, ‘Some of my customers who bought this have been using it to look at porn movies. Yuk yuk.’. If the answer was, “That’s disgusting!”, or something indicating the person thought porn was evil, or the customer showed no interest, the line would be dropped. But if the guy would say something like, “Really? Where do they get them?”, then the salesman would say, “I don’t know, but one of my customers gave me a couple of copies just to show me what it was all about. I’m not into it myself, so if you want them, I’d be happy to throw 'em in with the deal.”
SOLD. About 90% of the time.
I don’t buy that for one second.
Surely it was 100% 
Oh, for the good old days before the big chains took over and video stores got “family friendly” - time was, you could trot down to the local Mom and Pop’s on the corner and rent all kinds of filth along with your copy of Rambo.