@Rick: They tore it apart and found two of the transistors had no wires going to them.
I remember an old computer in the UK -- thsi was a "big boy" -- not a personal workststion -- it came running with one clock speed -- when you needed to upgrade, you could buy another motherboard that ran at twice the clock speed.
The man woudl come from the factory, take your motherboard out, and plug the new one in, and leave. As soon as he was out of sight, he would flip the "2X" switch on your old motherboard -- this was the one he would install in the next company's computer...
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.