Every about 10 years there is a new "wave" of " technology platform.
In mid 90's it was PC, dominated by Windows and Mac OS
In mid 2000's came mobile, with iOS and Android OS.
It is now becoming clear that "voice OS" is a new wave, with Amazon Alexa and Google Assistant leading the way...
Amazon reveals how many commercehqdevices have been sold: 100 million - Business Insider
Ahead of CES 2019, Amazon revealed how many Alexa devices it's sold.
The 100 million figure includes devices that Amazon makes as well as third-party gadgets with Alexa built-in.
The announcement comes as Amazon and Google are expected to put their AI voice assistants front and center at CES.
Google boasts 1 billion Assistant devices—10x Amazon Alexa’s install base | Ars Technica
"The power of Android gives Google 10x more assistant devices than Amazon."