guru = the first person in a circle of friends and family to learn about something.
If you are like me, you are your family's and friend's computer "guru." You
heard about this thing called the Internet and jumped in with both feet.
Of course, you found the Internet the greatest thing since sliced bread. You have been
telling all your friends and relatives, they've gotta get online.
If you are successful, you have just become their teacher.
A true (?) story from a computer support person. Some of you
might relate.