or, it's how much crap he has on his hard-drive/his processor/ram speed. or, it's how much stuff he has on his startup. liek...msconfig in start run, on the startup tab it shows there. Stuff booted to the systray, or services that windows doesn't load by default.
"Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!"