Halftone magazine printing? Check.

Videocasettes? Check.

Internet? Check.

Thank heaven for prurient smut, driver of all great technology. Without it we would still be in the stone age.

You forget laserdiscs, smaller videocameras, DVDs, and online payment systems ...

It's also probably the only thing really using VR/AR right now to any significant degree.

It used to be that there was a porn convention at the same time as CES in Las Vegas. For a lot of years, the porn conference was the better of the two from a technology standpoint.

VR, 4k, interactive use of connected devices. We're getting to Demolition Man levels fast.

Don't forget the role in testing censorship laws. It is fantastic in a way. Always a wet finger in the air to see in which direction it is blowing, constantly asking "how can I make money from this?".