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• Enhanced_Graphics_Adapter abstract "The Enhanced Graphics Adapter (EGA) is an IBM PC computer display standard specification which is between CGA and VGA in terms of color and space resolution. Introduced in September 1984 by IBM shortly after (but not exclusively for) its new PC/AT, EGA produces a display of 16 simultaneous colors from a palette of 64 at a resolution of up to 640×350 pixels. The EGA card includes a 16 kB ROM to extend the system BIOS for additional graphics functions, and includes the Motorola MC6845 video address generator as used in the CGA.Each of the 16 colors can be assigned a unique RGB color code via a palette mechanism in the 640×350 high-resolution mode; the 64 palette colors are a balanced RGB color set comprising all possible combinations of two bits per pixel for red, green and blue. EGA also includes full 16-color versions of the CGA 640×200 and 320×200 graphics modes; only the 16 CGA/RGBI colors are available in these modes[citation needed]. EGA 4-bit (16 colors) graphic modes are also notable for a sophisticated use of bit planes and mask registers together with CPU bitwise operations, which constitutes an early graphics accelerator inherited by VGA and numerous compatible hardware.The original CGA modes are also present, though EGA is not 100% hardware compatible with CGA. EGA can drive an MDA monitor by a special setting of switches on the board; only 640×350 high-resolution monochrome graphics and the standard MDA text mode are available in this mode.EGA cards use the PC ISA bus and were available starting in 8-bit versions. The base IBM EGA card came with 64 kB of video memory installed, only enough for 4 colors in high-resolution graphics. Expansion to 256 kB required a daughterboard. Eventually, most EGA cards and clones would come with 256 kB of memory. A few third-party EGA clones (notably the ATI Technologies and Paradise boards) feature a range of extended graphics modes (e.g., 640×400, 640×480 and 720×540), as well as automatic monitor type detection, and sometimes also a special 400-line interlace mode for use on CGA monitors.The EGA standard was made obsolete by the introduction of VGA by IBM in April 1987 with the PS/2 computer line.Shortly before the introduction of VGA, Genoa Systems introduced a half-size graphics card built around a proprietary chip set, which they called Super EGA (later cards supporting an extended version of the VGA were similarly named Super VGA).".
• Enhanced_Graphics_Adapter thumbnail IBM_EGA_card.jpg?width=300.
• Enhanced_Graphics_Adapter wikiPageID "160527".
• Enhanced_Graphics_Adapter wikiPageRevisionID "588777640".
• Enhanced_Graphics_Adapter hasPhotoCollection Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter subject Category:1984_introductions.
• Enhanced_Graphics_Adapter subject Category:Computer_display_standards.
• Enhanced_Graphics_Adapter subject Category:IBM_personal_computers.
• Enhanced_Graphics_Adapter subject Category:Video_cards.
• Enhanced_Graphics_Adapter type Abstraction100002137.
• Enhanced_Graphics_Adapter type Card102962545.
• Enhanced_Graphics_Adapter type ComputerDisplayStandards.
• Enhanced_Graphics_Adapter type Material114580897.
• Enhanced_Graphics_Adapter type Matter100020827.
• Enhanced_Graphics_Adapter type Measure100033615.
• Enhanced_Graphics_Adapter type Paper114974264.
• Enhanced_Graphics_Adapter type Part113809207.
• Enhanced_Graphics_Adapter type PhysicalEntity100001930.
• Enhanced_Graphics_Adapter type Relation100031921.
• Enhanced_Graphics_Adapter type Standard107260623.
• Enhanced_Graphics_Adapter type Substance100019613.
• Enhanced_Graphics_Adapter type SystemOfMeasurement113577171.
• Enhanced_Graphics_Adapter type VideoCards.
• Enhanced_Graphics_Adapter comment "The Enhanced Graphics Adapter (EGA) is an IBM PC computer display standard specification which is between CGA and VGA in terms of color and space resolution. Introduced in September 1984 by IBM shortly after (but not exclusively for) its new PC/AT, EGA produces a display of 16 simultaneous colors from a palette of 64 at a resolution of up to 640×350 pixels.".
• Enhanced_Graphics_Adapter label "EGA".
• Enhanced_Graphics_Adapter label "EGA".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "Enhanced Graphics Adapter".
• Enhanced_Graphics_Adapter label "إي جي إيه".
• Enhanced_Graphics_Adapter label "增强图形适配器".
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphic_Adapter.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs 강화_그래픽_어댑터.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter sameAs EGA.
• Enhanced_Graphics_Adapter sameAs m.0156nz.
• Enhanced_Graphics_Adapter sameAs Q523204.
• Enhanced_Graphics_Adapter sameAs Q523204.
• Enhanced_Graphics_Adapter sameAs Enhanced_Graphics_Adapter.
• Enhanced_Graphics_Adapter wasDerivedFrom Enhanced_Graphics_Adapter?oldid=588777640.
• Enhanced_Graphics_Adapter depiction IBM_EGA_card.jpg.
• Enhanced_Graphics_Adapter isPrimaryTopicOf Enhanced_Graphics_Adapter.