I think you're confusing microchips with microprocessors.
Microchip: An integrated circuit
Microprocessor: A CPU, i.e. something that can execute stored instructions, has registers, an ALU, and exhibits turing-machine like behavior.
They're everywhere!!
Computers, scanners, printers, network switches/routers, cameras, cell phones, TVs, game systems, heating/cooling system, automobiles, lots of tools and small appliances too
Add to that:
And finally, every single book, DVD, or product that has a deactivated RFID security chip.
If the answers are between 0 and 20, then a better question would be "How many microprocessors are on you personally right now"?
One good reason why computers can do more work than people is that they never have to stop and answer the phone.