30 or 40 years was not that long ago, we did have computers back then and database management, it was called mail order in those days, maintaining your mailing list and customer list was database management in the old days.
I still absolutely adore the sound those IBM golf ball typewriters make!!! Dunno why, but it has always been a sound I love, and the feel of the keyboard.. very tactile!
There were typewriters right up until 1990, I used to be a Rep for an IBM Office Equipment Dealer back then, and we were selling IBM typewriters as well as Computers and Word Perfect hahaha I remember selling an IBM 386 top of the range computer to an architect for $9,000!!!!!! including a modem that had a whopping speed of 9600bits! yes that is 0.96 kbps! FAST!
I also remember selling a heap of IBM typewriters to a legal firm over the Computers, as they didn't want the girls to "have it too easy" and "be distracted by all the features" OMG! that is only 20 years ago.
I do remember the article about the Altair in I think Popular Science. Could have been Popular Electronics.
We have a selectric at work. Up until a few years ago our book keeper needed to use it for tax forms.
Some of the higher end Selectric units had memory in them, you could remember letters and duplicate them out to 100's or thousands of recipients, and they looked hand typed, so those machines were great for businesses and professionals alike.
1975 is not that long ago, I was in high school back then, ah the good times were rolling for sure, maybe if we did not smoke so much grass in those days we could have had a sound enough mind to invest in Apple and Microsoft and would never have to work again.
PS: I found an old copy of Microsoft's annual report while going through some old files, I think it was 1986 or so, I did not read it back then and threw my money at penny stocks instead, sad but oh so true.