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(1) (Monochrome Display Adapter) The first IBM PC monochrome video display standard for text. Due to its lack of graphics, MDA cards were often replaced with Hercules cards, which included graphics. See Hercules Graphics and VGA.

(2) (Model Driven Architecture) See Object Management Architecture.

(3) (Mechanical Design Automation) Applications that help automate the design and engineering processes from concept to manufacturing. Automotive, aerospace and discrete manufacturing are examples of industries that use MDA.

(4) (Modular Digital Architecture) An earlier snap-together, building-block approach for adding peripherals to a PC from NeoSystems, Inc.
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References in periodicals archive ?
Miller's remains bore traces of methoxyamphetamine (PMA) and methylenedioxyamphetamine (MDA), the active ingredient found in the party drug 'Ecstasy'.
Based on the results of the autopsy, histopathological examination and toxicology tests, Aranas said Miyagawa and Miller had traces of PMA (para-methoxyamphetamine) and MDA (methylenedioxyamphetamine)-both metabolites of MDMA-in their blood and stomach contents.