We've come a long way. Dr. Dobbs, Volume 1 #5 (PDF) [2]

Source (8080) available on github [0]

Others: [1]

I forgot how I first loaded it. Doubtful that I typed it in, but I do recall getting a paper tape from somewhere and loading it via a cheap optical reader.

Life got interesting when I got a NorthStar disk for the IMSAI. And ever after.

[0] https://github.com/kevinthecheung/tiny-basic

[1] https://en.wikipedia.org/wiki/Tiny_BASIC

[2] http://cini.classiccmp.org/pdf/DrDobbs/DrDobbs-1976-05-v1n5....

Firefox will complain about http. Allow download. I checked it, it's real pdf.