Lotus Software (called Lotus Development Corporation before its acquisition by IBM) was an American software company based in Massachusetts; it was "offloaded" to India's HCL Technologies in 2018. Lotus is most commonly known for the Lotus 1-2-3 spreadsheet application, the first feature-heavy, user-friendly, reliable, and WYSIWYG-enabled product to become widely available in the early days of the IBM PC, when there was no graphical user interface. Much later, in conjunction with Ray Ozzie's Iris Associates, Lotus also released a groupware and email system, Lotus Notes. IBM purchased the company in 1995 for US1.8 billion. Lotus was founded in 1982 by partners Mitch Kapor and Jonathan Sachs with backing from Ben Rosen. Lotus's first product was presentation software for the Apple II known as Lotus Executive Briefing System. Kapor founded Lotus after leaving his post as head of development at VisiCorp, the distributors of the VisiCalc spreadsheet, and selling all his rights to Visi-Plot and Visi-Trend to Visi-Corp. Shortly after Kapor left Visi-Corp, he and Sachs produced an integrated spreadsheet and graphics program. Even though IBM and VisiCorp had a collaboration agreement whereby Visi-Calc was being shipped simultaneously with the PC, Lotus had a superior product. Lotus released Lotus 1-2-3 on January 26, 1983. The name referred to the three ways the product could be used, as a spreadsheet, graphing tool, and database manager. The last two functions were less often used in practice, but 1-2-3 was the most powerful spreadsheet program available. Lotus was almost immediately successful, becoming the world's third largest microcomputer software company in 1983 with 1 million in sales.
Viktor Kuncak, Mikaël Mayer, Jad Hamza