This symposium will review several important technological (r-)evolutions Sverre has seen during his long career at CERN. Examples are the introduction of reliable tape storage, the introduction of the PC as the Physics Computer for LHC (first presented at CHEP-95), multiple decades of hunting for cost effective computing (from mainframes to RISC servers and then to PCs), the efforts of detailed performance tuning (in 7 dimensions), vectorisation of HEP software (which was dropped in the 80s, but is now back with a vengeance), and, finally, more than a decade of industrial collaboration in CERN openlab.