in his own house. Apparently he was one of many technology CEOs who restricted his kids' screen time (with the exception of school work) to weekends only and then for a limited amount of time.
http://mobile.nytimes.com/2014/09/11/fashion/steve-jobs-apple-was-a-low-tech-parent.html
http://mobile.nytimes.com/2014/09/11/fashion/steve-jobs-apple-was-a-low-tech-parent.html