ibm mda造句

Based on the IBM Datamaster's display system, the standard IBM MDA card was equipped with four kilobytes ( kB ) of video memory.
The machine uses a unique hybrid of the IBM MDA and CGA which supports the latter's graphics modes, but contains both cards'text fonts in ROM . When using the internal monochrome monitor the 9x14 font is used, and the 8x8 one when an external monitor is used ( the user switches between internal and external monitors by pressing ).
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