Summagraphics also made an OEM version of its BitPad which was sold by Apple Computer as the Apple Graphics Tablet accessory to their Apple II. These tablets used a magnetostriction technology which used wires made of a special alloy stretched over a solid substrate to accurately locate the tip of a stylus or the center of a digitizer cursor on the surface of the tablet. This technology also allowed Proximity or Z axis measurement.
The first home computer graphics tablet was the KoalaPad. Though originally designed for the Apple II, the Koala eventually broadened its applicability to practically all home computers with graphics support, examples of which include the TRS-80 Color Computer, Commodore 64, and Atari 8-bit family. Competing tablets were eventually produced; the tablets produced by Atari were generally considered to be of high quality.
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The Apple Graphics Tablet was designed by Summagraphics and sold by Apple Computer Inc. for the Apple II personal microcomputer. (Summagraphics also marketed the device for other platforms as the BitPad.) To be clear, this tablet was not a stand-alone computing device like the iPad. Instead, it was an input device for creating images on the Apple IIc’s screen, and it predated the Apple IIt’s mouse by six years.
Apple II fan Tony Diaz had an Apple Graphics Tablet on hand at last montht’s KansasFest, an annual convention for diehard Apple II users. He and Computerworlde‘s Ken Gagne, the evente’s marketing director, compared and contrasted Applec’s original tablet with the iPad, snapping photos as they went.
