geekgirl

1979 – Visicalc is released by Dan Bricklin. The spreadsheet application is called the first killer app for personal computers. It turned the PC from a hobby to a business tool. Only downfall for Bricklin was he did not patent the system, therefore, clones like SuperCalc, Microsoft’s MultiPlan and Lotus 1-2-3, would show up.

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Other items in Your Day in Tech History

  • IBM 1311 Storage Drive
  • Office 2001 for Mac
  • Poloroid files Chapter 11

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