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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. Computer memory - Wikipedia

    en.wikipedia.org/wiki/Computer_memory

    Historical lowest retail price of computer memory and storage Electromechanical memory used in the IBM 602, an early punch multiplying calculator Detail of the back of a section of ENIAC, showing vacuum tubes Williams tube used as memory in the IAS computer c. 1951 8 GB microSDHC card on top of 8 bytes of magnetic-core memory (1 core is 1 bit.)

  4. Timeline of computing - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_computing

    The Computer History in time and space, Graphing Project, an attempt to build a graphical image of computer history, in particular operating systems. The Computer Revolution/Timeline at Wikibooks "File:Timeline.pdf - Engineering and Technology History Wiki" (PDF). ethw.org. 2012. Archived (PDF) from the original on 2017-10-31

  5. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    Interactive Forms is a mechanism to add forms to the PDF file format. PDF currently supports two different methods for integrating data and PDF forms. Both formats today coexist in the PDF specification: [37] [52] [53] [54] AcroForms (also known as Acrobat forms), introduced in the PDF 1.2 format specification and included in all later PDF ...

  6. File:Timeline.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Timeline.pdf

    Original file (485 × 722 pixels, file size: 19 KB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  7. Timeline of computing 1950–1979 - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_computing_1950...

    SEAC (Standards Eastern Automatic Computer) demonstrated at US NBS in Washington, DC – was the first fully functional stored-program computer in the U.S. May 1950: UK The Pilot ACE computer, with 800 vacuum tubes, and mercury delay lines for its main memory, became operational on 10 May 1950 at the National Physical Laboratory near London.

  8. Timeline of file sharing - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_file_sharing

    In computer science terms, modern file sharing begins in the 2000s. Several file sharing protocols and file formats were introduced, along with nearly a decade in protocol experimentation. Towards the end of the 2000s, BitTorrent became subject to a "man in the middle" attack in TCP mode – and this has led most file sharing protocols to move ...

  9. History of hard disk drives - Wikipedia

    en.wikipedia.org/wiki/History_of_hard_disk_drives

    The IBM 350 Disk File was developed under the code-name RAMAC by an IBM San Jose team led by Reynold Johnson. It was announced in 1956 with the then new IBM 305 RAMAC computer. [8] A variant, the IBM 355 Disk File, was simultaneously announced with the IBM RAM 650 computer, [9] an enhancement to the IBM 650.