First I heard of the 3.
Me too. I remember Sony’s 3.5” floppy, which I used tons of during my Amiga 500 days, and I remember Zip and Jazz drives that were handy before thumb drives go so much capacity.
I guess that’s why this article was titled “A Look at the Short-Lived 3-Inch Compact Floppy Disk.”
“First I heard of the 3 .”
That was kind of the point.