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Extended Color BASIC ver 1.1 Rom Upgrade for TRS-80 Tandy Color Computer 1 and 2. This is a ROM upgrade for any system which does not have Extended Color BASIC and has an empty 24 pin socket for this upgrade.
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.