TheoryDesk is a range of all-in-one desktop computers manufactured by Theorysonic.
TheoryDesk was first released in July 1985 and bundles with Theorynet service. The first HD model was released in 1999.
TheoryDesk TW is the first to have TheoryClear display.
The TheoryDesk can only run on one operating system, which is TSUG. The latest version is TSUG X7.
TheoryDesk received positive reviews. It was one of the commercially successful personal computers, along with EKS Personal Unit/ViraPC and Microsoft Windows PCs.