TrueType
Apple-create font type introduced during Mac OS 9.
PostScript Type 1
Original vector-based font type, supported by many different operating systems.
OpenType – a scalable computer font format initially developed by Microsoft, later joined by Adobe Systems
Bitmap – legacy, based on pixels not vectors, which made it quick for screen printing (on slow computers of the past) but ill-suited for vector-based printing, i.e. laser printers.