I couldn't tell you much about my father. Whenever I ask him any question pertaining to computers, he responds with "I dunno" and walks away. What I do know is that he is an architectural engineer who spends a hell of lot of time on a Dell Inspiron 6000. I've seen a manual for 3DS Max on occasion and there are always massive drafts scattered around the house. I once found a bunch of ancient shooters of his, but he hid them in the basement when I asked about them. My grandparents have told me that he "assembled and programmed computers" at one point. My mother claims he left Solitaire windows open to try and impress her with his scores (he can beat the game in 30 seconds); that didn't work out so well.
My father refused to let my mother set up an email address or any online accounts. I'm not sure if he let her browse or not. Nowadays she's in that crowd of aging women with an irrational obsession with Facebook. She spends most of her day updating her status. She also pirate a TON of music. She has boxes of discs with pirated songs on them. She understands how to navigate well enough.
My brother mostly exchanges 'snake' jokes with his friends through Gmail (but uses AOL as his primary email account for some reason). All I ever hear from him are horrible 9gag jokes and rants about viral videos. I'm pretty sure he streams movies or torrents, but I couldn't tell you what. I do know he pirates music though.
My sister is the only one without a computer of her own. She uses my mother's laptop to play flash games on the internet.
I built a low-end computer and do nothing on it.