Pronounced “tech”
A typesetting program developed by the American computer scientist Donald E. Knuth in the late 1970s specifically for scientific texts.
Unlike today’s standard layout software, such as Quark Xpress or InDesign, TeX is not based on a graphic user interface, but processes texts containing formatting instructions.
The software is available for numerous computer types and uses its own fonts that are developed using the Metafont program.