I'll bet that in the room I'm sitting in there are at least 30 devices that contain at least one integrated circuit chip (most of these devices are hooked up to a computer--counting them as one the count is probably still at 15 or more). Throughout the house, the number of items is surely in the hundreds (kids toys, you know).
Jack S. Kilby invented the microchip that makes all of those devices so small. It really is amazing. The NY Times obituary tells some of the story.
There's a nice little book called microchip (I think) that has the kilby / noyce story - also the background on william shockly and the invention of the transistor. A good read.