Here's a fun advertisement for the "Silver Fox", a computer system sold by Scottsdale Systems.
I am tempted to dial 1-800-FOR-A-FOX and see who answers these days.
Note one particular feature that is called out: "A big return key."
This appeals to me as a consumer. Return keys are too damn small.
Somehow I completely missed the incredible Dad-pun that is "HAGEN-DOS".
This was a rebranded version of A-OK Software's "DOS-4" that supported the MBC-550's custom 800k floppy format.
https://www.eriscreations.com/sanyo/softsector/softsector_magazine(april_1986).pdf