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The term “Backchannel,” first introduced by Victor Yngve in 1970, denotes a type of communication that takes place concurrently or in the background of the primary discussion or activity. Since its inception, the backchannel has undergone considerable evolution, with trial systems emerging in the late 90s and early 2000s, and its significant influence was clearly seen at the PC Forum conference in 2002. It has become a crucial component in various fields, including education, promoting engagement, interaction, and active participation. Platforms like Twitter and Facebook[1], along with tools such as Purdue University’s Hotseat, facilitate the use of backchannel in these settings. Additionally, backchannel has been the focus of numerous academic investigations, examining its role, impact, and efficiency in diverse environments.

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1. Facebook ( Facebook ) Meta Platforms, previously known as Facebook, is a prominent internet corporation that originated as a social networking site. The brainchild of Mark Zuckerberg in 2004, Meta Platforms swiftly spread from Harvard to other educational institutions, eventually reaching the wider public and becoming a global sensation. Its appealing user interface and diverse features such as Groups, the Developer Platform, and Meta Platforms Dating are well-known. Despite encountering backlash over matters like privacy violations and the proliferation of misinformation, Meta Platforms continues to hold a strong position in the digital sphere. It has made remarkable progress in the realm of technology, including the creation of its distinctive data storage system, the employment of PHP for its platform, and the introduction of the Hack programming language. In the past few years, the company has pivoted its attention towards the metaverse, a virtual reality domain where users can engage with a digitally-created environment.
Backchannel (Wikipedia)

Backchannel is the use of networked computers to maintain a real-time online conversation alongside the primary group activity or live spoken remarks. The term was coined from the linguistics term to describe listeners' behaviours during verbal communication.

The term "backchannel" generally refers to online conversation about the conference topic or speaker. Occasionally backchannel provides audience members a chance to fact-check the presentation.

First growing in popularity at technology conferences, backchannel is increasingly a factor in education where WiFi connections and laptop computers allow participants to use ordinary chat like IRC or AIM to actively communicate during presentation. More recent research include works where the backchannel is brought publicly visible, such as the ClassCommons, and Fragmented Social Mirror.

Twitter is also widely used today by audiences to create backchannels during broadcasting of content or at conferences. For example, television drama, other forms of entertainment and magazine programs. This practice is often also called live tweeting. Many conferences nowadays also have a hashtag that can be used by the participants to share notes and experiences; furthermore such hashtags can be user generated.

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