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  2. WhatsApp - Wikipedia

    en.wikipedia.org/wiki/WhatsApp

    WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [14] It allows users to send text, voice messages and video messages, [15] make voice and video calls, and share images, documents, user locations, and other content.

  3. Reception and criticism of WhatsApp security and privacy ...

    en.wikipedia.org/wiki/Reception_and_criticism_of...

    In September 2019, WhatsApp was criticized for its implementation of a 'delete for everyone' feature. iOS users can elect to save media to their camera roll automatically. When a user deletes media for everyone, WhatsApp does not delete images saved in the iOS camera roll and so those users are able to keep the images.

  4. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    List of file signatures. This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbers or Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible.

  5. WebM - Wikipedia

    en.wikipedia.org/wiki/WebM

    WebM is an open media file format designed for the web. WebM files consist of video streams compressed with the VP8 video codec and audio streams compressed with the Vorbis audio codec. The WebM file structure is based on the Matroska media container. ^ WebM (Partial draft). Sustainability of Digital Formats.

  6. List of websites blocked in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_websites_blocked...

    If a user visits a blocked site within the United Kingdom, the user will be forwarded to www.ukispcourtorders.co.uk which includes the list of blocked domains and court orders. ISPs with over 400,000 subscribers subject to blocking orders include: BT Group [24] EE. Sky Broadband [25]

  7. Download or update your web browser - AOL Help

    help.aol.com/articles/download-or-upgrade-your...

    To get the best experience with AOL websites and applications, it's important to use the latest version of a supported browser. • Safari - Get it for the first time or update your current version. • Firefox - Get it for the first time or update your current version. • Chrome - Get it for the first time or update your current version ...

  8. PC-File - Wikipedia

    en.wikipedia.org/wiki/PC-File

    PC-File. PC-File was a flat file database computer application most often run on DOS. It was one of the first of three widely popular software products sold via the marketing method that became known as shareware. [1] It was originally written by Jim "Button" Knopf in late 1982, and he formed the company Buttonware to develop, market, and ...

  9. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    A PDF file is organized using ASCII characters, except for certain elements that may have binary content. The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format.