>Yeah, but we don't say that we are in the 'post pen-and-paper era'...

Sure we do. http://books.google.com/ngrams/graph?content=paperless&y...

But you didn't graph the phrase "post pen-and-paper era" so I don't understand your point. The previous poster's point was that we don't claim that pen and paper are dead. Are there countless of uses of the world "paperless?" Sure. What is the connection? I tried to graph "can't find anymore paper because no one uses it" but it didn't yield any results.

This is true, but I wouldn't bat an eye at the phrase "post-mainframe era," though of course there are still plenty of mainframes doing useful work.

But I would say in the 'post mainframe era,' we've gone from a time when most computers were mainframes to a time when most computers are not. Thus talking about the 'post pc era,' implies (in my opinion) that the vast majority of people will only have a table.

Surely that would be when the vast majority of computers are not PCs, not that the vast majority of people only have a tablet. Given the ubiquity of devices in the average home that have microprocessors, that do computing jobs that PCs can do, that aren't actually PCs, we've been there for a while.

Now if he'd said that we were in the tablet era, that's another thing.