Words our children will never need to know

Graham has an amazing vocabulary for a 22 month old, but many times we can't exactly make out what he's saying.  Sometimes we make stuff up.  Today he said something and when we couldn't understand Ryan asked "Did you say Rolodex?"  It dawned on me that Graham and Porter will never need to know what a Rolodex is. Then of course I started to think of all the things that were such a part of my life growing up that they will never really know.  They might hear a mention of them but that's about all.  Talk about making me feel old!!

• They will likely never listen to a cassette tape.
• Chances are they will never watch a VHS tape.
• It's quite possible that they will never own a "land line" telephone and maybe not any with a cord between the handset and the base..
• All of the televisions they will watch will have color and probably HD.
• Likely there will always be more computers in their house than toilets. 
• My guess is that they will never look anything up in a paper encyclopedia and certainly not in a paper card catalog.  But they probably will cut stuff out of our National Geographics, just like I did when I was in school (don't tell my mom).

I wonder what they will think of next to make the things we use today obsolete?