| http://www.w3.org/ns/prov#value | - At the time, this was common practice, and was necessary as it was not unusual for customers (especially large ones, such as the Federal Reserve) to modify the program to fit their specific needs.[3] As a result, a Burroughs Users Group was formed, which held annual meetings and allowed users to exchange their own extensions to the OS and other parts of the system software suite.
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