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The Enhanced Graphics Adapter (EGA) is an IBM PC graphics adapter [2] [3] and de facto computer display standard from 1984 that superseded the CGA standard introduced with the original IBM PC, and was itself superseded by the VGA standard in 1987.
The CGA card was succeeded in the consumer space by IBM's Enhanced Graphics Adapter (EGA) card, which supports most of CGA's modes and adds an additional resolution (640 × 350) as well as a software-selectable palette of 16 colors out of 64 in both text and graphics modes.
The Enhanced Graphics Adapter (EGA) supports all CGA modes and add three more: two 320×200 and 640×200 graphic modes, both with the full CGA 16-color palette (intended to be used with the same "digital RGB" CGA color monitor of 200 scan lines) and an extra 640×350 graphic mode with 16 colors chosen from a 6-bit RGB (64 colors) palette for ...
Enhanced Graphics Adapter The Hercules Graphics Card ( HGC ) is a computer graphics controller formerly made by Hercules Computer Technology, Inc. that combines IBM 's text-only MDA display standard with a bitmapped graphics mode, also offering a parallel printer port .
Front and rear views of the TVM MD-3 cathode-ray tube monitor (Enhanced Graphics Adapter era). Note the DE-9 connector, cryptic mode switch, contrast and brightness controls at front, and the V-Size and V-Hold knobs at rear, which allow the control of the scaling and signal to CRT refresh rate synchronization respectively.
[citation needed] The IBM Enhanced Graphics Adapter (EGA) contained an 8×14 pixels-per-character version, and the VGA contained a 9×16 version. [citation needed] All these display adapters have text modes in which each character cell contains an 8-bit character code point (see details), giving 256 possible values for graphic characters. All ...
Enhanced Graphics Adapter Tandy Graphics Adapter ( TGA , also Tandy graphics ) is a computer display standard for the Tandy 1000 series of IBM PC compatibles, which has compatibility with the video subsystem of the IBM PCjr but became a standard in its own right.
Its first product, announced September 1985, was a four chip EGA chipset that handled the functions of 19 of IBM's proprietary chips on the Enhanced Graphics Adapter. By that November's COMDEX, more than a half dozen companies had introduced EGA-compatible boards based on C&T's chipset. [2]