* Late 1960s
o Alan Kay of Xerox PARC proposed a notebook computer, optionally using pen input, called the Dynabook: however the device is never constructed or implemented with pen input.
* 1966
o In the science fiction television series Star Trek, crew members carry large, wedge-shaped electronic clipboards, operated through the use of a stylus.
* 1982
o Pencept of Waltham, Massachusetts markets a general-purpose computer terminal using a tablet and handwriting recognition instead of a keyboard and mouse.[37]
o Cadre System markets the Inforite point-of-sale terminal using handwriting recognition and a small electronic tablet and pen.[38]
* 1985
o Pencept[39] and CIC[40] both offer PC computers for the consumer market using a tablet and handwriting recognition instead of a keyboard and mouse. Operating system is MS-DOS.
* 1989
o The first commercially available tablet-type portable computer was the GRiDPad[41] from GRiD Systems, released in September. Its operating system was based on MS-DOS.
o Wang Laboratories introduces Freestyle. Freestyle was an application that would do a screen capture from an MS-DOS application, and let the user add voice and handwriting annotations. It was a sophisticated predecessor to later note-taking applications for systems like the Tablet PC.[42] The operating system was MS-DOS
o In partnership with Fujitsu, the Poqet Computer Corporation announced the arrival of the Poqet PC.
* 1991
o The Momenta Pentop was released.[43]
o GO Corporation announced a dedicated operating system, called PenPoint OS, featuring control of the operating system desktop via handwritten gesture shapes.[44][45] Gestures included "flick" gestures in different directions, check-marks, cross-outs, pig-tails, and circular shapes, among others.
o NCR released model 3125 pen computer running MS-DOS, Penpoint OS or Pen Windows.[46]
o The Apple Newton entered development; although it ultimately became a PDA, its original concept (which called for a larger screen and greater sketching capabilities) resembled the hardware of a Tablet PC.
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