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Claude Shannon is known as the "father of information theory" - he invented the theory that underpins binary digits, compression and error correction (and "coding" in general, where coding refers to coding data, not programming). I've just come across a movie about him that looks really entertaining. Only the trailer seems to be available online, but that alone could be a good way to add some colour to lessons on these topics.
Shannon also made inventions such as a juggling machine, chess playing machine, and built a rocket-powered frisbee, but pretty much every digital device is built on his theory. It's another example that there are underlying principles about digital devices that don't keep changing, even though on the surface the devices do appear to change a lot.
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