Quantum electrodynamics enabled?

[Mechanovis]

Im wondering what products/technologies that would not have been poosible without the theories of Quantum electrodynamics, not things that these theories appear to explain.

[mathman]

The ideas which lead to the laser (and its forerunner, the maser) come straight from quantum theory.

[Hyperreality]

If you are interested in QED, you should read

QED The Strange Theory of Light and Matter by Richard Philips Feynman