I was reading Matthew Squair's course materials on System Safety Fundamentals when I came across this slide:
"Life was simple before World War II. After that, we had systems."
Rear Admiral Grace Hopper (USN)
The Admiral Dr,of course, is best known for inventing the system "bug" when she literally found a dead bug in in an inoperative computer system.
And, she used to hold up an 11.8" piece of wire to show the length travelled by an electron in a nanosecond. (*) Shorter is better! Thus, the sub-micron circuitry of today.
She retired from the Navy at age 79 in 1986 after serving about 50 years.
(*) To be more precise, about 11.8 inches in a vacuum; slower in wire, of course.
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