Software Arts was a software company founded by

Dan Bricklin Daniel Singer Bricklin (born July 16, 1951) is an American businessman and engineer who is the co-creator, with Bob Frankston, of VisiCalc, the first spreadsheet program. He also founded Software Garden, Inc., of which he is currently president, ...

and Bob Frankston in 1979 to develop

VisiCalc VisiCalc ("visible calculator") is the first spreadsheet computer program for personal computers, originally released for the Apple II by VisiCorp on October 17, 1979. It is considered the killer application for the Apple II, turning the microco ...

, which was published by a separate company, Personal Software Inc., later named VisiCorp. Software Arts also developed TK!Solver, a numeric equation solving system originally developed by

Milos Konopasek Milos Konopasek (died in Boston, Massachusetts, 9 January 2002) was a Czechoslovakia-born mechanical engineering, mechanical engineer best known as the creator of TK!Solver, an iterative, Constraint satisfaction, constraint-based Declarative prog ...

, and ''Spotlight'', "a desktop organizer for the I.B.M. Personal Computer." By early 1984 ''InfoWorld'' estimated that Software Arts was the world's 13th-largest microcomputer-software company, with $12 million in 1983 sales. It was bought by Lotus in 1985.

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Software Arts and VisiCalc
by Dan Bricklin Defunct computer companies based in Massachusetts Software companies established in 1979 Software companies disestablished in 1985 1979 establishments in Massachusetts 1985 disestablishments in Massachusetts Defunct software companies of the United States {{ict-company-stub