In 1984, the first Macintosh was already equipped with 17 fonts, some of which, such as Venice, Athens, and Cairo, rather quickly left the scene; others, such as Chicago (which was replaced by Charcoal to give the Mac's desktop a new look), stayed around for a while; finally, two of them have survived to the present, becoming vector fonts along the way: Geneva and Monaco.
These fonts were all resources of type FONT. The "Macintosh Programmer's Guide" (Inside Macintosh [49, p. I-227]) of the era explains the structure of these resources in great detail. Here is a brief description: A FONT resource is a series of pairs of bytes in little-endian order that consists of the following:
Global parameters: the "type of font" (monospaced or proportional), the positions of the first and last glyphs in the table, the maximum set-width, the "maximum kern"[A-1]), the number of pixels below the baseline, the width and height of the bounding box, a pointer to the table of set-widths, the leading (i.e., the number of pixels to add between lines of glyphs), and the width of the font's global image (see below).
[A-1] The term "kern" here is used ...