Ok, this may be for geeks! Actually, I have had many people not as geeky as the average Silicon Valley resident getting a kick out of this place.
After all, we all carry a computer in our pocket these days.
For those interested in what came before the iPhone, The Computer History Museum has a collection that ranges from the old hand-cranked calculators, over punchcards and floppy disks to our modern pocket-supercomputer - that for a long time has had more capacity than what directed Apollo 11 to the moon and back.
I have personally followed this revolution close up since the days of punchcards - my first real program was punched in PL1 and running on an IBM360. What it did can be automatically created using a pivot table in Excel. Welcome to the future.