Siri is an application for Apple’s iOS. Siri is termed as an ‘intelligent personal assistant’ and a knowledge navigator. Siri was originally developed by Siri Inc. as an iOS application and was available in the App Store.
Siri was then acquired by Apple in April 2010. Siri has been an integral part of iOS since iOS 5 and was first supported on the iPhone 4S. With the release of iOS 6 Siri was added to iPad too.
‘Siri’ allows the user to use his/her voice to perform various tasks like sending messages, schedule meetings, book a movie ticket, answer questions, make recommendations and much more. Siri is not like any other voice recognition software that requires the user to remember keywords and allows the use of only specific commands.
Siri understands the natural speech of humans and it also asks questions to the user if it needs clarification or more information to complete the task. The application uses a natural language user interface and delegates the voice commands ordered by the user to a set of web services.