Do Wangs count? Not sure if they were designed for office/business tasks, but I think they were marketed for office/business tasks.
Yes, possibly.
I think something like the Commodore PET might qualify. Back in the day, I saw it used for everything from cash registers to accountants' workstations, but rarely for anything else.
I think that the original IBM PC was conceived and marketed as a business machine and only grew beyond that because of Microsoft's deep commitment to it as a platform and IBM's uncharacteristicly open specifications and design.
If not for that combination, the PC might never have left the office and most of us would have stuck with the companies who were actually breaking new ground, Apple and Commodore.
An interesting view. But the PET was definitely lower specced than the later 16/32-bit machines usually regarded as workstations.
I feel like most offices would use the general purpose machines.
That's likely, but I wonder whether any other office workstations were actually developed.
I am not sure, but I found this article about the history of typewriters & computers that might have the answer some where. https://guides.loc.gov/office-history/typewriters-computers
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