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Game Development Dictionary
Symmetric Digital Subscriber Line. This is a high-speed internet connection which, like a cable modem, runs at very high speeds. Unlike conventional ADSL (Assymetric Digital Subscriber Line), however, an SDSL connection is "symmetric" -- it receives data just as fast as it sends data, and in both cases, this is very fast. However, SDSL requires its own special line -- whereas ADSL runs through a normal phone line -- and is very expensive.