History
The tablet computer and the associated special operating software is an example of Pen computing technology, and thus the development of tablets has deep historical roots.
The depth of these roots can be quite surprising to people who are only familiar with current commercial products. For example, the first patent for an electronic tablet used for handwriting was granted in 1888.[15] The first patent for a system that recognized handwritten characters by analyzing the handwriting motion was granted in 1915.The first publicly-demonstrated system using a tablet and handwriting text recognition instead of a keyboard for working with a modern digital computer dates to 1956.
In addition to many academic and research systems, there were several companies with commercial products in the 1980s: Pencept, Communications Intelligence Corporation, and Linus were among the best known of a crowded field. Later, GO Corp. brought out the PenPoint OS operating system for a tablet product: one of the patents from GO corporation was the subject of recent infringement lawsuit concerning the Tablet PC operating system.
One early implementation of a Linux tablet was the ProGear by FrontPath. The ProGear used a Transmeta chip and a resistive digitizer. The ProGear initially came with a version of Slackware Linux, but could later be bought with Windows 98.
In 2000 Microsoft coined the term "Microsoft tablet PC" for tablet PC's built to Microsoft's specification, and running a licensed specific tablet enhanced version of its Microsoft Windows OS.
Microsoft Tablet PCs were targeted to address business needs mainly as note-taking devices, and as rugged devices for field work.
Tablet PCs failed to gain popularity in the consumer space because of unresolved usability problems. The existing devices were too heavy to be held with one hand on extended periods, having legacy applications created for desktop interfaces made them not well adapted to the slate format, and the specific software features designed to support usage as a tablet were not present in all contexts.
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