1. 
   VisiCalc
   (from the article `spreadsheet`) The first spreadsheet program was VisiCalc, written for the Apple II computer in 1979. In the view of many users, it was the application that most ... ...were converted to run on microcomputers. One company created the game Micro Chess and used the profits to fund th...
   Found op http://www.britannica.com/eb/a-z/v/29
   
   
2. 
   VisiCalc
   VisiCalc was the first spreadsheet program available for personal computers. It is often considered the application that turned the microcomputer from a hobby for computer enthusiasts into a serious business tool. VisiCalc sold over 700,000 copies in six years. ==Origins== Conceived by Dan Bricklin...
   Found op http://en.wikipedia.org/wiki/VisiCalc
   
   

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