DTSS may refer to:
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Downtown Silver Spring
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David Thompson Secondary School (disambiguation), several in British Columbia, Canada
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Digital Time Synchronization Service
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Dartmouth Time Sharing System
The Dartmouth Time-Sharing System (DTSS) is a discontinued operating system first developed at Dartmouth College between 1963 and 1964. It was the first successful large-scale time-sharing system to be implemented, and was also the system for wh ...
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Digital Time-Stamping Service
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