Google Cast

cast
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.wikipedia
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Chromecast

Google ChromecastChromecast Ultracasting
The protocol was first launched on July 24, 2013, to support Google's first-generation Chromecast player.
The devices, designed as small dongles, enable users with a mobile device or personal computer to play Internet-streamed audio-visual content on a high-definition television or home audio system through mobile and web apps that support the Google Cast technology.

Nexus Player

Google Cast would later be built into the Nexus Player and other Android TV devices (such as televisions), as well as soundbars, speakers, and subsequent Chromecast players.
The Nexus player supports Google Cast, the feature for selecting and controlling media playback on a television that was first introduced by Chromecast.

Android TV

Android TV,AndroidTVtelevision
Google Cast would later be built into the Nexus Player and other Android TV devices (such as televisions), as well as soundbars, speakers, and subsequent Chromecast players.
As a replacement for Google TV, it features a user interface designed around content discovery and voice search, surfacing content aggregated from various media apps and services, and integration with other recent Google technologies such as Assistant, Cast, and Knowledge Graph.

Google Play Services

Google Play ProtectProprietary
Google also made the SDK a part of the Google Play Services framework, thereby giving users access to new apps without having to update Android itself.
The Google Cast Android API adds casting functionality to allow Android applications to display content on TVs using Google Cast, additionally providing various helpers for common audio, video and image types.

Google Home

Google Home HubGoogle Home MaxGoogle Home Mini
In October 2016, the iOS and Android mobile app used to initially set up Google Home and Google's other streaming devices was renamed from "Google Cast" to "Google Home", leaving Google Cast as the name solely of the protocol that "sends" audio/video content to play back on another device.

Miracast

, but support was dropped with Android 6.0 Marshmallow in 2015 in favor of Google's own proprietary Google Cast protocol.

Proprietary protocol

proprietaryproprietary networking protocolproprietary communications protocol
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Google

Google Inc.Google, Inc.Google LLC
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Mobile device

mobile deviceshandheldmobile
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Personal computer

PCPCspersonal computers
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Streaming media

streamingstreamedstreaming video
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Digital media player

Digital media receivermedia playermedia players
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

High-definition television

HDTVhigh definitionHD
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Home audio

homehome stereoaudio
Google Cast, branded for consumer devices as Chromecast built-in, is a proprietary protocol developed by Google that enables mobile devices and personal computers to initiate and control playback of Internet-streamed audio/video content on a compatible device, such as a digital media player connected to a high-definition television or home audio system.

Software development kit

SDKSDKsdevelopment kits
The Google Cast SDK was released on February 3, 2014, allowing third parties to modify their software to support the protocol.

Soundbar

sound barmedia barsound bars
Google Cast would later be built into the Nexus Player and other Android TV devices (such as televisions), as well as soundbars, speakers, and subsequent Chromecast players.

Mobile app

appmobile applicationapps
Google Cast receivers can stream content via two methods: the first employs mobile and web apps that support the Google Cast technology; the second allows mirroring of content from the web browser Google Chrome running on a personal computer, as well as content displayed on some Android devices.

Web application

web-basedweb applicationsweb app
Google Cast receivers can stream content via two methods: the first employs mobile and web apps that support the Google Cast technology; the second allows mirroring of content from the web browser Google Chrome running on a personal computer, as well as content displayed on some Android devices.

Android (operating system)

AndroidAndroid operating systemList of Android devices
Google Cast receivers can stream content via two methods: the first employs mobile and web apps that support the Google Cast technology; the second allows mirroring of content from the web browser Google Chrome running on a personal computer, as well as content displayed on some Android devices.

Ultrasound

ultrasonicultrasonicsultrasounds
Sender devices previously needed to be connected to the same Wi-Fi network as a Google Cast receiver device to cast content, until the addition of a "guest mode" feature on December 10, 2014; When enabled, the feature allows sender devices to discover a nearby player by detecting ultrasonic audio emitted by the television or speaker system to which the player is connected; alternatively, the sender device can be paired with the receiver device using a four-digit PIN code.

IOS 7