A TrueType font is a single file that contains both the screen and printer versions of a typeface. TrueType fonts make up the majority of the fonts that have come automatically installed on Windows and Mac operating systems for years, though OpenType fonts are the newest standard.
Created several years after PostScript fonts, TrueType fonts are easy to manage because they are a single file. TrueType fonts allow for extremely advanced hinting, a process that determines which pixels are displayed and as a result, produces better quality font display at all sizes.
TrueType fonts were originally created by Apple and later licensed to Microsoft, making them an industry standard.