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  2. iMessage - Wikipedia

    en.wikipedia.org/wiki/IMessage

    iMessage is an instant messaging service developed by Apple Inc. and launched in 2011. iMessage functions exclusively on Apple platforms – including iOS, iPadOS, macOS, watchOS, and visionOS – as part of Apple's approach to inter-device integration, which has been described by media outlets as a means of achieving vendor lock-in. [ 1][ 2 ...

  3. Comparison of cross-platform instant messaging clients

    en.wikipedia.org/wiki/Comparison_of_cross...

    The secondary device is a computer running a desktop operating system, which serves as a companion for the primary device. Desktop messaging clients on secondary devices do not function independently, as they are reliant on the mobile phone maintaining an active network connection for login authentication and syncing messages.

  4. Discord - Wikipedia

    en.wikipedia.org/wiki/Discord

    Discord is an instant messaging and VoIP social platform which allows communication through voice calls, video calls, text messaging, and media. Communication can be private or take place in virtual communities called "servers". [note 2] A server is a collection of persistent chat rooms and voice channels which can be accessed via invite links.

  5. macOS Monterey - Wikipedia

    en.wikipedia.org/wiki/MacOS_Monterey

    The operating system is named after Monterey Bay, continuing the trend of releases named after California locations since 2013's 10.9 Mavericks. macOS Monterey is the final version of macOS that supports the 2015–2017 MacBook Air, Retina MacBook Pro, 2014 Mac Mini, 2015 iMac and cylindrical Mac Pro, as its successor, macOS Ventura, drops ...

  6. macOS Big Sur - Wikipedia

    en.wikipedia.org/wiki/MacOS_Big_Sur

    macOS. macOS Big Sur (version 11) is the seventeenth major release of macOS, Apple 's operating system for Macintosh computers. It was announced at Apple's Worldwide Developers Conference (WWDC) on June 22, 2020, [ 4] and was released to the public on November 12, 2020. [ 5][ 4][ 6] Big Sur is the successor to macOS Catalina, and was succeeded ...

  7. macOS version history - Wikipedia

    en.wikipedia.org/wiki/MacOS_version_history

    macOS. The history of macOS, Apple 's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9, was a direct descendant of the operating system Apple had used in its Mac computers since ...

  8. Message authentication code - Wikipedia

    en.wikipedia.org/wiki/Message_authentication_code

    Message authentication code. In cryptography, a message authentication code ( MAC ), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity -checking a message. In other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed (its integrity).

  9. Macintosh User Group - Wikipedia

    en.wikipedia.org/wiki/Macintosh_User_Group

    Macintosh User Group. A Macintosh User Group ( MUG) is a users' group of people who use Macintosh computers made by Apple Inc. or other manufacturers and who use the Macintosh operating system (OS). These groups are primarily locally situated and meet regularly to discuss Macintosh computers, the Mac OS, software and peripherals that work with ...