I think the vast majority of the gains from the computing revolution have been captured in consumer surplus. Billions of people get to use all kinds of online software for free. Certainly hard to estimate but this is likely worth trillions alone?
You can probably measure some of that in terms of how people would have done these tasks previously. Some of those tasks are trivial, like keeping a paper calendar instead of a digital one.
You can also interpret it in terms of jobs eliminated.
Disagree. Maybe one day all of these homes will be owned by a giant corporation, but for now, they are typically owned by individuals. Not everyone who has benefited is a robber baron.