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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    Whereas a barcode is a machine-readable optical image that contains information specific to the labeled item, the QR code contains the data for a locator, an identifier, and web-tracking. To store data efficiently, QR codes use four standardized modes of encoding: (I) numeric, (ii) alphanumeric, (iii) byte or binary, and (iv) kanji. [4] Compared to standard UPC barcodes, the QR labeling system ...

  3. WhatsApp - Wikipedia

    en.wikipedia.org/wiki/WhatsApp

    In January 2015, WhatsApp launched a web client that allowed users to scan a QR code with their mobile app, mirroring their chats to their browser. The web client was not standalone, and required the user's phone to stay on and connected to the internet.

  4. EPC QR code - Wikipedia

    en.wikipedia.org/wiki/EPC_QR_code

    EPC QR code. The European Payments Council Quick Response Code guidelines define the content of a QR code that can be used to initiate SEPA credit transfer (SCT). It contains all the necessary information in clear text. These QR code guidelines are used on many invoices and payment requests in the countries that support it (Austria, Belgium ...

  5. Timeline of WhatsApp - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_WhatsApp

    Timeline of WhatsApp. The following is a timeline of WhatsApp, a proprietary cross-platform, encrypted, instant messaging client for smartphones. [1] Jan Koum incorporates WhatsApp in USA. [2] WhatsApp 2.0 is released on the App Store for the iPhone. [3]

  6. Text messaging - Wikipedia

    en.wikipedia.org/wiki/Text_messaging

    Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two or more users of mobile phones, tablet computers, smartwatches, desktops / laptops, or another type of compatible computer.

  7. Signal Protocol - Wikipedia

    en.wikipedia.org/wiki/Signal_Protocol

    The Signal Protocol (formerly known as the TextSecure Protocol) is a non- federated cryptographic protocol that provides end-to-end encryption for voice and instant messaging conversations. [2] The protocol was developed by Open Whisper Systems in 2013 [2] and was introduced in the open-source TextSecure app, which later became Signal. Several closed-source applications have implemented the ...

  8. Masahiro Hara - Wikipedia

    en.wikipedia.org/wiki/Masahiro_Hara

    Nationality. Japanese. Alma mater. Hosei University. Known for. Inventing the QR code. Awards. European Inventor Award. Masahiro Hara (Japanese: 原 昌宏, Hepburn: Hara Masahiro, born 1957) is a Japanese engineer and Hosei University graduate who is best known for inventing the QR code in 1994. [ 1 ][ 2 ]

  9. Chatbot - Wikipedia

    en.wikipedia.org/wiki/Chatbot

    A chatbot (originally chatterbot) [1] is a software application or web interface that is designed to mimic human conversation through text or voice interactions. [2][3][4] Modern chatbots are typically online and use generative artificial intelligence systems that are capable of maintaining a conversation with a user in natural language and simulating the way a human would behave as a ...

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