Name Any animal that Pokemon never did.

[Goemar]

Metagross is as much of a robot as Steelix is. Which is not really.

Genesect and Registeel are though. Totally. Although, technically, no pokemon are truly robots, since they're supposed to be natural/biological creatures, right?

Aren't they like weird data animals being that they can be stored in a computer etc?

I think you're getting mixed up with Digimon. Pokemon can just magically be stored in tiny spheres that fit in your pocket. Hence them being "pocket monsters" and not "digital monsters".

Back in the red/blue days (long before the internet was popular) the Pokemon cries, being stored in the computer etc. always gave me the impression that they were some weird computer data compatible like monster things. I think that makes sense.