TheoryBook

TheoryBook is a line of TSUG laptop computers manufactured by Theorysonic. It is a high-end Theorysonic laptop computer.

History
TheoryBook was first released in May 14, 1986 as a battery-powered portable computer and bundles with Theorynet service. It has build-in trackball and keyboard.

TheoryBook TW is the first to have TheoryClear LED display.

Software
The TheoryDesk runs TSUG. The latest version is TSUG X7.

Reception
TheoryBook received positive reviews from critics.