Computer dictionary, terms, and glossary

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Today's Computer Word: PCM

PCM picture

Short for Pulse Code Modulation, PCM was first developed by Alec Reeves, a British Engineer in 1937. It is an analog signal that's sampled at uniform intervals and converted to a digital binary number. The technology was originally developed for telephone communication system. However, today is also being used with other digital audio formats such as audio CD's, DVD's, and Blu-Ray discs. Continue reading >>