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The Mattel Aquarius was the first and only genuine home computer offered by Mattel Electronics. Mattel did not start by designing a computer. It instead began by looking around for a pre-made computer system it could market under its name. It discovered that one of its manufacturing partners, the Hong Kong based Radofin Electronics Far East, had already designed a three-system line of home computers. All Mattel had to do was secure the U.S. marketing rights, which it promptly did for the first two units in the line, and have Radofin handle the manufacturing.