John Gruber wrote a hilarious rant about the single-story a in the iOS Notes app:

I absolutely despise the alternate single-story a glyph that Apple Notes uses. I use Notes every single day and this a bothers me every single day. It hurts me. It’s a childish silly look, but Notes, for me, is one of the most serious, most important apps I use. 

Since that sparked some conversation online, he followed up with a longer post about typography in early versions of the Mac system software:

…Apple actually shipped System 1.0 with a version of Geneva with a single-story a glyph — but only in the 9-point version of Geneva. At 12 points (and larger), Geneva’s a was double-story.

To me, it does make sense that 9-point Geneva would have a single-story a, since there are less pixels to draw the glyph well and to distinguish better from the lowercase e.

The Apple Mac turned 30 years old today. I got my first Mac in 1985 actually after weeks if not months of convincing my father to spend his hard-earned money on it. Every weekend and after many school days, I’d take the bus over to Computerland on Van Ness in San Francisco and just play with the Mac on display for hours at a time.

Embarrassingly this is one of my first MacPaint paintings. Bear in mind that I was 12 years old at the time.