At least you did say "I think" and "in my opinion".
I was using a Mac for midi work in the late 80's and they were available for that well before. Most of the DAWs we enjoy started out as midi control software. Sonar was Cakewalk Pro back in the late 80s, and quickly became Cakewalk Pro Audio, Home Studio, and then I switched to Reason, so I don't know any more. But macs were doing midi control since mid 80s (84-85 I think).
But computer music goes way back.
http://THIS was in 1951!!! From our good friends the Aussies. The Atari ST (1985) had built in midi ports. Macs had chipsets out of expensive synths. There were a lot of uses for computers/software in music a long ways back. It wasn't until the early 90s that actual DAWs started to emerge from all those softwares, but it was a fun ride! Okay, enough history lesson
We did a lot with computers in the 80s after midi was introduced (83) (oops, more history). It really opened the door (if you had the money).