Each character is a 16*16 dot matrix encoded by the 16-bit integer. Old systems (from the beginning of IBM compatibles until early 1990-ish) had hardware accele

Each character is a 16*16 dot matrix encoded by the 16-bit integer. Old systems (from the beginning of IBM compatibles until early 1990-ish) had hardware accelerators if they wanted to use multiple fonts, IIRC one of the few breakthrough products made by Lenovo.