NGFTSFO - Naval Gunfire version using EGA graphics, actual scenes from San Clemente Island training area, and incorporating effects of dispersion between rounds.
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The best available graphic card for a PC at that time was the CGA which allowed for 320x200 resolution in only four colors.
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By this time, the Extended Graphics Adapter (EGA) was commonly available for the PC offering 640/350 resolution and a palate of 16 colors.
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MINITSFO - Original version using a Digital Message Device (DMD), virtual map, and CGA graphics.