Siri is a computer program that works as an intelligent personal assistant and knowledge navigator.  Siri is a part of is a part of Apple’s iOS, watchOS, and tvOS operating systems.

Siri uses a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Web services. The software, both in its original version and as an iOS feature, adapts to the user’s individual language usage and individual searches (preferences) with continuing use, and returns results that are individualized.

Siri has been an integral part of iOS since iOS 5. Dictation powered by Siri was added to the third generation iPad with the release of iOS 5.1.1 in May 2012; full Siri support was added with iOS 6. Siri has been included on all mobile Apple hardware manufactured during or after October 2012.

On October 4, 2011, Apple introduced the iPhone 4S with their implementation of a beta version of Siri.


Siri is a spin-out from the SRI International Artificial Intelligence Center, and is an offshoot of the DARPA-funded CALO project. Siri was originally introduced as an iOS application available in the App Store by Siri Inc., which was acquired by Apple on April 28, 2010.

Siri’s primary technical areas focus on a Conversational Interface, Personal Context Awareness, and Service Delegation. A key feature both of the research and development behind the original Siri, Inc. application, and behind its function as an iOS application, is its artificial intelligence programming aimed to allow it to adapt to the user’s individual language usage and individual searches (preferences) with continuing use, with return of results that are therefore individualized.

At WWDC 2013, Apple’s Eddy Cue announced a new system called “iOS in the Car” aimed at integrating Siri and other iOS functions more fully into native in-car systems, like satellite navigation (Satnav) and music playback, which was later renamed CarPlay by Apple on March 3, 2014.

Siri is also integrated into Apple Watch‘s watchOS, where the feature can be activated by holding down the Digital Crown or by saying “Hey, Siri.” Siri is additionally integrated into Apple TV‘s tvOS, where the feature can be activated using a button on the included Siri Remote.

Siri is now available in multiple languages such as Arabic, Chinese, Danish, Dutch, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, Spanish, Swedish, Thai and Turkish. The original American voice colloquially known as “Samantha” was provided by Susan Bennett in July 2005.

About Deepak Devanand

Seeker of knowledge
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