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The Processor Technology VDM-1, for Video Display Module, was the first video card for S-100 bus computers. It was created in 1975 and allows an S-100 machine to produce its own display. Using a 7 x 9 dot matrix and ASCII characters, it produces a 64-column by 16-row text display.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.