The Probert Encyclopaedia of Science & Technology

MDA

The Monochrome Display Adapter or MDA was one of the first graphics adapters available for Personal Computers and was released by IBM in 1981 at the same time that they released their first Personal Computer. The MDA graphics card supported a single text mode display of 80 columns and 25 rows. The MDA was based upon the Motorola MC6485 video controller.
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