The Theorysonic Operating System, often abbreviated as TS-OS or TS-OS 1 by fans is a graphical operating system developed and released by Theorysonic and the first version of TSUG.

Released in 1973, the Theorysonic Operating System wasn't just the world's first operating system, and also the important milestone for Theorysonic, as it introduced the TS-OS line, which will later be replaced by the TS-UGOS/TSUG line.

History Edit

The development of TS-OS began in 1965. TS-OS 1 took eight years to develop before being released.

Features Edit

Gallery Edit

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