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inventor: Andreas Pavel; the personal stereo, or a walkman, allowed many people to listen to music "on the go" and was very popular.
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inventor: Andreas Pavel; The personal/portable stereo allowed people to conveniently listen to music on the go. This was extremely popular.
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inventor: Steve Jobs; It was one of the first computers that didn't rely on a text-based interface. These computers became very popular overtime, and the new ones are still popular to this day.
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inventor: Bill Gates; Windows was the most advanced software at the time. It eventually became one of the most popular operating systems of all time.
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inventor: Fusajiro Yamauchi; The Nintendo Entertainment System became very popular throughout families as it was fun and entertaining.
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inventor: John Logie Baird; HD television offered a whole new viewing system for people, in their own homes. These became very popular and well-known.