Other terms uses for these Artificial Intelligence Voice Assistant devices and software are:
They all answer questions:
See 75 Point Comparison of Amazon Echo to Google Home - HomeAlarmReport.com for a good list of features.
Far-field voice input processing (FFVIP). - The ability of a microphone to separate voices from noise when the speaker is 12 to 15 feet away.
Smart Assistant Review: Living With Alexa, Google and Siri | Time
Amazon Echo vs. Google Home: Which Voice Controlled Speaker Is Best for You?: Wirecutter Reviews | A New York Times Company
75 Point Comparison of Amazon Echo to Google Home - HomeAlarmReport.com
Make the Most Out of Amazon Echo and Google Home | WIRED
Google Home Mini review - The Verge
Siri vs. Google Assistant vs. Alexa vs. Cortana: Which AI is best? - Business Insider