![]() ![]() The Z88 accepted input through a keyboard that was part of the main tablet unit, while the Write-Top accepted input through a stylus. The first true tablet computers were Cambridge Research’s Z88 and Linus Technologies’ Write-Top, which were introduced in 1987. In 1968 Alan Kay, a graduate student at the University of Utah, promoted his vision of a small, powerful tablet-style computer that he later called the Dynabook however, Kay never actually built a Dynabook. The precursors to the tablet computer were devices such as the Stylator (1957) and the RAND Tablet (1961) that used a stylus for input into a larger computer. Early tablet computers used either a keyboard or a stylus to input information, but these methods were subsequently displaced by touch screens. Tablet computer, computer that is intermediate in size between a laptop computer and a smartphone.
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