Please find below the solution for: For about 20 years after its invention it had few practical uses then suddenly it revolutionized grocery checkouts & home audio. This clue was last seen on July 29 2022 in the popular Final Jeopardy TV Game Show. If something is wrong or missing please let us know by leaving a comment below and we will be more than happy to help you out.

For about 20 years after its invention it had few practical uses then suddenly it revolutionized grocery checkouts & home audio

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