Individual European countries use differing numbering schemes and text fonts:
Digital patented the innovation of having a single character generator provide the text font for both screen and copier.
Fairfield is an old style serif typeface designed by Rudolf Ruzicka as a text font.
The text fonts include Ogonek characters and other characters for (Latin-based) eastern European languages, again among others.
On other displays of this era, text fonts were hardwired and could not be changed.
As a result, text fonts are unusually crisp and fine.
When complete, changing the text font to a vertical font converts the document to vertical orientation for printing purposes.
This happens in the same way that users of a traditional computer word processor benefit from having more than one text font.
Readers expect clever letterheads, snappy text fonts and graphs or clip art for visual relief.
Sans serif text fonts are often used for introductory paragraphs, incidental text and whole short articles.