The OS converts a number (for example a codepoint) into the required shape on the screen or print output.
Some fonts
Caladea is metrically compatible with
MS Cambria. Thus, it can be used on Linux to edit an MS Word document when the document needs to be returned to the Windows world,
if the document is already written in
MS Cambria.
Caledonia is a type face designed 1939, by William Addison Dwiggins (1880-1956), for the Mergenthaler Linotype Company.
Caledonia is the Roman name for Scotland. Dwiggins chose this name because he was inspired by the Scottish types cast by Alexander Wilson & Son.
Very tiny fonts.
FiraCode is a free monospaced font containing ligatures for common programming multi-character combinations (so that for example
!= looks like
≠).
Gelasio is metrically compatible with
MS Georgia.
Noto (No more Tofu, by google) aims to support all languages. Licensed under OFL.
Unfortunately, the font (at least the monospaced version of it) doesn't support some special characters that are important to me.
Triskweline is a
fixed-width font especially suited for text editors and programming environments. It was designed for maximum legibility and tidiness and supports all important symbols and Latin-1 characters.
Terminus is a
fixed-width font designed for long work with computers. Version 4.46 contains 1291 characters, covers about 120 language sets and supports
ISO8859-1/2/5/7/9/13/15/16, Paratype-PT154/PT254, KOI8-R/U/E/F, Esperanto, many IBM, Windows and Macintosh code pages, as well as the IBM VGA, vt100 and
xterm pseudographic characters.
Proggy fonts are a set of fixed-width screen fonts that are designed for code listings.