VisiCalc was ported to numerous platforms, both 8-bit and some of the early 16-bit systems. In order to do this, the company developed porting platforms that produced bug compatible versions. The company took the same approach when the IBM PC was launched, producing a product that was essentially identical to the original 8-bit Apple II version. S...
Found on
http://en.wikipedia.org/wiki/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 the development of an important ... I...
Found on
http://www.britannica.com/eb/a-z/v/29
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