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![]() ![]() It did, however, make the cassette port unusable for its intended purpose. This was possible because the PET cassette port supplied both power and data connections through a proprietary edge connector. Its dongle was a simple passive device that supplied data to the pins of a Commodore PET's external cassette port in a pre-determined manner. WORDCRAFT was the first program to use a software protection dongle, in 1980.
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