SRI International
In December 2007, SRI launched a spin-off company, Siri Inc., which Apple acquired in April 2010. In October 2011, Apple announced the Siri personal assistant as an integrated feature of the Apple iPhone 4S. Siri's technology was born from SRI's work on the DARPA-funded CALO project, described by SRI as the largest artificial intelligence project ever launched. Siri was co-founded in December 2007 by Dag Kittlaus (CEO), Adam Cheyer (vice president, engineering), and Tom Gruber (CTO/vice president, design), together with Norman Winarsky (vice president of SRI Ventures). Investors included Menlo Ventures and Morgenthaler Ventures.
IPhone 5C
The 5C includes Siri, an intelligent personal assistant and knowledge navigator. The application uses a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Web services. Apple claims that the software adapts to the user's individual preferences over time and personalizes results. iOS 7 adds new male and female voices, new system setting functionalities, a redesign to match the rest of the operating system, and integration with Twitter, Wikipedia, Bing, and Photos. The highest operating system it supports currently is iOS 10 in 2016. iOS 11 will not support this iPhone, as the phone ceased production in September 2015 and it is also a 32-bit iPhone.