Jonathan Sachs was the co-founder of Lotus 1-2-3. He spent 10 months writing the program in Assembly. He did such an excellent job, the program was almost completely bug-free, lightning fast and extremely efficient. Sachs left Lotus in 1985. Currently, he owns a photo editing software program called Digital Light & Color. "I am mostly retired now," he says, "But have been involved with Digital Light & Color since around 1993, a company that produces photo editing software for Windows."