computer usage data bleg (update: and server market share)

Hey, all. I’m in need of data about ‘typical’ computer usage- i.e., ‘in 2007, the average computer user spent X% of time on the internet, Y% of time doing word processing, Z% of time listening to music, etc.’ The ideal data set would have this information for a number of years- ideally going back at least to 2000 A.D. (aka ’1 B.iTunes.’) I’ve been googling for a bit and have had no luck. If anyone can point me at such data, I’d be extremely appreciative. Thanks!

Relatedly: (added later): similar long-term numbers for server market share, both by OS and by chip family (x86 v. everyone else, primarily) would be terrific to have if anyone knows of a source of them (ideally without paying Gartner bazillions, though I really need to look into whether or not the school’s Bloomberg subscription gives me access to that.)