TS-Book

TS-Book is a line of TS-OS laptop computers manufactured by Theorysonic. Just like its successor, TheoryBook, it is a high-end Theorysonic laptop computer.

History
TS-Book was first released in April 20, 1976 as a battery-powered portable version of TS-Desk 2 and bundles with TS-DOS and it comes with the Theorysonic Development Tools service. The last update is April 24, 1984 and it bundled with TheoryPaint and LenseNet services.

Software
The TS-Book ran TS-OS 2 to TS-OS 6.