We've spoken of it in our archaeology classes from time to time. It was an early computing device found in a shipwreck that has been dated to the 1st century B.C. Much more about it, including photos of the original with modern working duplicates, may be found at this
link.
Anyway, we finally have the technology to explore the wreck, which lies at approximately 400 feet, using an
atmospheric diving suit. It looks like this:
May I say "neato" now?