The Multi-Color Graphics Array was a video subsystem built into the motherboard of the IBM PS/2 Model?30, introduced on April 2, 1987, and Model?25, introduced later on August 11; no standalone MCGA cards were ever made. The MCGA supported all CGA display modes plus 640×480 monochrome, 60?Hz refresh rate, and 320×200, 256?colors (out of a palette of 262,144) at 70?Hz refresh rate.
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