They seem to have also invented the concept of "checking-in". See video[1] at 0:...

		kinkora on Oct 5, 2011 \| parent \| context \| favorite \| on: Apple's 1987 Knowledge Navigator, Only One Month L... They seem to have also invented the concept of "checking-in". See video[1] at 0:38 second mark onwards where he talks about a student checking in at Guatemala. [1]http://www.youtube.com/watch?v=3WdS4TscWH8