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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. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 September 2024. Portable Document Format, a digital file format For other uses, see PDF (disambiguation). Portable Document Format Adobe PDF icon Filename extension.pdf Internet media type application/pdf, application/x-pdf application/x-bzpdf application/x-gzpdf Type code PDF (including a single ...
After its origin in central China, the production and use of paper spread steadily. It is clear that paper was used at Dunhuang by 150 CE, in Loulan in the modern-day province of Xinjiang by 200, and in Turpan by 399. Paper was concurrently introduced in Japan sometime between the years 280 and 610.
The history of libraries began with the first efforts to organize collections of documents.Topics of interest include accessibility of the collection, acquisition of materials, arrangement and finding tools, the book trade, the influence of the physical properties of the different writing materials, language distribution, role in education, rates of literacy, budgets, staffing, libraries for ...
1993: IBM created the first mobile app with SIMON; it had 10 built-in apps from Email to Calendar. 1994: IBM Simon, the world's first smartphone, is developed by IBM. 1994: First generation of Bluetooth is developed by Ericsson Mobile. A form of data communication on short distances between electronic devices.
History of encyclopedias. Nuremberg Chronicle, printed in 1493, making it one of the best-documented early printed encyclopedias. Encyclopedias have progressed from the beginning of history in written form, through medieval and modern times in print, and most recently, displayed on computer and distributed via computer networks.
The history of education extends at least as far back as the first written records recovered from ancient civilizations. Historical studies have included virtually every nation. [1][2][3] The earliest known formal school was developed in Egypt's Middle Kingdom under the direction of Kheti, treasurer to Mentuhotep II (2061-2010 BC).
The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs. Eon.