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Quantum Link (or Q-Link) was an American and Canadian online service for the Commodore 64 and 128 personal computers that operated starting November 5, 1985. It was operated by Quantum Computer Services of Vienna, Virginia, which later became America Online. In October 1989 the service was renamed America Online, and made available to users of PC systems as well. The original Q-link service was terminated on November 1, 1995, in favor of the America Online brand, which still operates to this day.
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