Happy Birthday, IBM Cambridge Scientific Center

On Feb. 1, 1964, when the CSC was founded, this building was known as 545 Technology Square.At the time, Tech Square consisted of three buildings facing a courtyard.  Since then, others have been added.  The building is practically surrounded by a substantial addition, the courtyard has been replaced by the driveway in the foreground, the building has redesigned windows, and its address appears to be  200 Technology Sq.