I no longer have clear memory of this, but I'm fairly certain I read an article back around 1979 or so published by Hewlett Packard. At the time, they had recently released their 41C calculator. I remember it being on my wish list, but unaffordable (I had the more affordable TI-58C). I believe the article was tied to promotional material for the 41C.
IIRC the article depicted someone going through a day with their "personal digital assistant". At the time, it was total fantasy - there was no public internet, no cellular network, the most powerful hand-held device would have been the HP-41C.
The "assistant", if I recall correctly, was depicted to have capabilities very close to what can now be done by an iPhone (given a cellular connection, internet access, and Siri).
I'd like to re-read the article to confirm what I think I recall of it. If anyone recognizes the article I'm referring to and has access to it, could they post it (or a reference to it)?