I have heard that among older IBMers the 1620 (model 1) was known as CADET, for "Can't Add Doesn't Even Try".
LOL. I came here to make the same comment. I think the deal was they used a lookup table for addition instead of a modern ALU.
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LOL. I came here to make the same comment. I think the deal was they used a lookup table for addition instead of a modern ALU.