There, he designed the NeXTSTEP operating system, based upon his previous academic work on Mach.
[7] In 2001, Bertrand Serlet and Tevanian initiated a secret project at the request of Steve Jobs, to sell MacOS on Vaio laptops.
[8] Apple demonstrated the product to Sony executives at a golf party in Hawaii, with the most expensive Vaio they could acquire.
[9] Sony refused, arguing Vaio's sales had just started to grow after years of difficulties.
[10] Tevanian left Apple on March 31, 2006, and joined the boards of both Dolby Labs[11] and Theranos, Inc.[12] He resigned from the board of Theranos in late 2007, with an acrimonious ending as he faced legal threats and was forced to waive his right to buy a company cofounder's shares, actions he believed were in retaliation for the skepticism he was often alone in expressing about the company's finances and progress in developing its technology at board meetings.