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Two unopened original VisiCalc III: The Electronic Worksheet software programs for the Apple III personal computer, both 6.75˝ x 9˝ x 2.25˝, with the product overview on the back reading: “One of the most innovative and versatile programs ever created, VisiCalc III is a powerful ‘electronic worksheet’ that lets you ask the tough ‘What if?’ questions essential to modeling and forecasting. With VisiCalc III, you can quickly and accurately solve just about any problem that can be put into a row-and-column format. Because the program is simple to learn and performs complex calculations instantaneously, you can easily build a model, then change any variable and immediately see how that change affects the entire worksheet.” Both are factory-sealed and in overall fine condition, with a couple of trivial small tears to the shrink wrap.
Originally released for the Apple II by VisiCorp on October 17, 1979, the VisiCalc (‘visible calculator’) was the first spreadsheet computer program for personal computers. Considered the ‘killer application’ for the Apple II, the program turned the microcomputer from a hobby for computer enthusiasts into a serious business tool, which prompted IBM to introduce the IBM PC two years later. More than 700,000 copies were sold in six years, and up to 1 million copies over its history.
