Technological paradigm shifts happen all the time. One example is the telecommunications industries in developing countries, where consumers are choosing to adopt wireless technology before wired technology, reversing the process in developed nations. Another good example would be the handheld communications industry, where cell phones can now act like computers or Internet browsers, in addition to their other functions.
An industry that has recently undergone a paradigm shift is the photography industry. The shift is from chemical to digital photography. Describe what happened to existing companies as the shift unfolded.