Some things never change.
Anyway in along with the first mac a bit later came the laserwriter and customers started using that for camera ready copy (canarie in the coal mine was only 300dpi way below photographic quality). Later linotype built a rip that could interface a Mac 512k (iirc) with the linotype (about 1985). I spent almost 6 figures on a linotype and became a service bureau. The minute I saw that you could draw a box on a Mac around type (with traditional systems you needed to essentially program this) I knew what would happen. That said I was in my 20's most others in my business didn't see it the same way since they were older.
Parent commenter - what was the age of your father at the time he had this revelation?
I remember those hot type machines never owned one it was before my time.
Someone could probably make a novelty linotype app duplicating the process and the noise the machine made.
Additionally nearly all of the other dot matrix printing was done based on low quality build in fonts. Send some text to output with control codes and you got output. The Mac basically painted pixel on the printer, so what ever font or image you had on the screen was accurately rendered.
Prior to the Mac/ImageWriter combination most of the letter quality (meaning good enough for business correspondence) printing I had seen was done via typewriters wired up to computers. Afterward, many businesses decided the Mac/ImageWriter was good enough for many purposes.
Edit: oh, I forgot there were also Daisy Wheel printers https://en.wikipedia.org/wiki/Daisy_wheel_printer