TSUG

TSUG is a graphical operating systems developed, marketed, and sold by Theorysonic.

History
Theorysonic created their first operating system called TS-OS in 1973.

Usage share
TSUG is the most popular operating system in El Kadsre, Australia, Sentan, Vicnora, Japan, Philippines, Spain, France, Italy and Germany.

as TS-OS

 * Theorysonic Operating System (1973)
 * TS-OS 2 (1975)
 * TS-OS 3 (1977)
 * TS-OS 4 (1979)
 * TS-OS 5 (1981)
 * TS-OS 6 (1983)

as TS-UGOS

 * TS-UGOS E1 (1985)
 * TS-UGOS E2 (1986)
 * TS-UGOS 2 (1987)
 * TS-UGOS 3 (1989)
 * TS-UGOS 4 (1991)
 * TS-UGOS 5 (1993)
 * TS-UGOS 6 (1995)
 * TS-UGOS 7 (1997)
 * TS-UGOS VM (1999)
 * TS-UGOS SO (2001)
 * TS-UGOS TEN (2003)
 * TS-UGOS EV (2005)
 * TS-UGOS TW (2007)
 * TS-UGOS TT (2009)
 * TS-UGOS FT (2011)
 * TS-UGOS FI (2013)
 * TS-UGOS ST (2015)

as TSUG

 * TSUG X7 (2017)