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They would see the "© 1982" on a chip and although it would be incredibly futuristic (35+ years in the future!), would at least know it was likely to be created by humans. Whether they could work out how on earth you place such incredibly tiny components onto a sliver of silicon is interesting. If the person taking the computer back in time mentioned the word "photolithography" I suspect they would have been able to make a pretty good guess.

I don't think there would be many copyright dates on the chips. They might think that Texas ruled the world from the TI logo being on everything, though.

Here's a high res picture of the C64 PCB, where you can see the markings on the chips: https://myoldcomputer.nl/wp-content/uploads/2015/11/board-32...

You can see both copyright dates, and plenty of other English text. While in 1940 this would have represented incredible futuristic technology, it's pretty obviously made by humans and not a piece of alien magic. It also has components like resistors and capacitors with markings which would have been immediately obvious to 1940s electronics experts.

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