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Graphical Data Display Manager
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<h2 id="gddm-and-os2-presentation-manager">GDDM and OS/2 Presentation Manager</h2> <p>IBM and <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> began collaborating on the design of <a href="/facts/OS%2f2/uVBl6ItP">OS/2</a> in 1986. The Graphics Presentation Interface (GPI), the graphics <a href="/facts/API/GMlN4vUr">API</a> in the OS/2 <a href="/facts/Presentation_Manager/YT8RhzKU">Presentation Manager</a>, was based on IBM's GDDM and the Graphics Control Program (GCP). GCP was originally developed in Hursley for the 3270/PC-G and 3270/PC-GX terminals. </p><p>The GPI was the primary graphics <a href="/facts/API/GMlN4vUr">API</a> for the <a href="/facts/OS%2f2/uVBl6ItP">OS/2</a> operating system. </p><p>At the time (1980s), the <a href="/facts/Graphical_user_interface/wBlQFWDP">graphical user interface</a> (GUI) was still in its early stages of popularity, but already it was clear that the foundation of a good GUI was a graphics API with strong <i>real-time interactive</i> capabilities. Unfortunately, the design of GDDM was closer to (at the time) traditional graphics APIs like <a href="/facts/Graphical_Kernel_System/bdVdRjNt">GKS</a>, which made it unsuited for more than the simplest interactive uses. </p><p>Microsoft and IBM went their separate ways in 1991. Microsoft continued development of its <a href="/facts/Microsoft_Windows/bwhAhuSL">Windows</a> operating environment with <a href="/facts/Graphics_Device_Interface/C8yuXxtL">Graphics Device Interface</a> (GDI) graphics API. IBM continued with OS/2 for several more years. </p> <ul><li>Charles Petzold, <i> Programming the OS/2 Presentation Manager</i>, Microsoft Press, 1989. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 1-55615-170-5.</li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://web.archive.org/web/20050117192808/http://www-03.ibm.com/ibm/history/history/year_1979.html">announcement of 3279 and 3287.</a></li> <li><a href="https://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_61/books_web/sc410536.pdf">GDDM Programming Guide</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Creating Presentation Graphics with GDDM". MC Press Online. Retrieved Mar 1, 2020. <a href="https://www.mcpressonline.com/analytics-cognitive/document-management/creating-presentation-graphics-with-gddm" target="_blank">https://www.mcpressonline.com/analytics-cognitive/document-management/creating-presentation-graphics-with-gddm</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>