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  2. Technology in Star Wars - Wikipedia

    en.wikipedia.org/wiki/Technology_in_Star_Wars

    Radios and other communications devices. In Star Wars, a subspace transceiver, also known as a subspace comm, subspace radio, and hyper-transceiver, was a standard device used for instantaneous, faster-than-light communications between nearby systems. Similar to its shorter-ranged cousin, the com-link, the subspace transceiver relied on energy ...

  3. Telegraphy - Wikipedia

    en.wikipedia.org/wiki/Telegraphy

    Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signalling systems, although sometimes quite extensive and sophisticated as in ...

  4. Electrical telegraph - Wikipedia

    en.wikipedia.org/wiki/Electrical_telegraph

    Hughes telegraph, an early (1855) teleprinter built by Siemens and Halske. Electrical telegraphs were point-to-point text messaging systems, primarily used from the 1840s until the late 20th century. It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called telegraphs, that were ...

  5. iMessage - Wikipedia

    en.wikipedia.org/wiki/IMessage

    iMessage. iMessage is an instant messaging service developed by Apple Inc. and launched in 2011. iMessage functions exclusively on Apple platforms – including macOS, iOS, iPadOS, and watchOS – 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 ...

  6. Bag valve mask - Wikipedia

    en.wikipedia.org/wiki/Bag_valve_mask

    Bag valve mask. A bag valve mask ( BVM ), sometimes known by the proprietary name Ambu bag or generically as a manual resuscitator or "self-inflating bag", is a hand-held device commonly used to provide positive pressure ventilation to patients who are not breathing or not breathing adequately. The device is a required part of resuscitation ...

  7. Telecommunications device for the deaf - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_device...

    The specific GA and SK keys allow for speedier use of common . A telecommunications device for the deaf ( TDD) is a teleprinter, an electronic device for text communication over a telephone line, that is designed for use by persons with hearing or speech difficulties. Other names for the device include teletypewriter ( TTY ), textphone (common ...

  8. Personal digital assistant - Wikipedia

    en.wikipedia.org/wiki/Personal_digital_assistant

    The Palm TX. A personal digital assistant ( PDA) is a multi-purpose mobile device which functions as a personal information manager. PDAs have been mostly displaced by the widespread adoption of highly capable smartphones, in particular those based on iOS and Android, and thus saw a rapid decline in use after 2007.

  9. Comparison of cross-platform instant messaging clients

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

    A multi-device, device-agnostic model is designed for accessibility on multiple devices, regardless of desktop or mobile. Examples of such messaging services include: Skype , Facebook Messenger , Google Hangouts (subsequently Google Chat ), Telegram , ICQ , Element , Slack , Discord , etc. Users have more options as usernames or email addresses ...

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