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  2. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.

  3. 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. [23]

  4. Adobe Acrobat version history - Wikipedia

    en.wikipedia.org/wiki/Adobe_Acrobat_version_history

    Originally called Adobe Reader For Windows Tablets (Version 1.0) was released on the Microsoft Windows Store on the second week of December 2012, [38] based on the Adobe Reader Mobile engine found in the iOS, Android, Blackberry and Windows phone versions, is the first application written by Adobe Systems for the Windows 8/RT Metro Style interface.

  5. Timeline of religion - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_religion

    Religion has been a factor of the human experience throughout history, from pre-historic to modern times. The bulk of the human religious experience pre-dates written history , which is roughly 70,000 years old. [ 1 ]

  6. History of software - Wikipedia

    en.wikipedia.org/wiki/History_of_software

    Computer science is more theoretical (Turing's essay is an example of computer science), whereas software engineering is focused on more practical concerns. However, prior to 1946, software as we now understand it – programs stored in the memory of stored-program digital computers – did not yet exist. The very first electronic computing ...

  7. Binary - Wikipedia

    en.wikipedia.org/wiki/Binary

    Binary code, the representation of text and data using only the digits 1 and 0; Bit, or binary digit, the basic unit of information in computers; Binary file, composed of something other than human-readable text Executable, a type of binary file that contains machine code for the computer to execute

  8. Timeline of free and open-source software - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_free_and_open...

    This article presents a timeline of events related to popular free/open-source software. For a narrative explaining the overall development, see the related history of free and open-source software. The Achievements column documents achievements a project attained at some point in time (not necessarily when it was first released).

  9. History of religion - Wikipedia

    en.wikipedia.org/wiki/History_of_religion

    [4] [5] Sacred texts like the Bible, the Quran, and others did not have a word or even a concept of religion in the original languages and neither did the people or the cultures in which these sacred texts were written. [6] [7] The word religion as used in the 21st century does not have an obvious pre-colonial translation into non-European ...