Gray code was invented by Frank Gray in 1953. It was originally invented for use in pulse-width modulation for analog-to-digital converters, as it reduces the number of false readings that can occur due to electrical noise. Since then, it has been widely used in a variety of applications, including error correction, coding theory, and digital signal processing. The properties of Gray code make it a useful tool for working with binary systems that require stable and reliable encoding, and it continues to play an important role in computer science and electrical engineering today.
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