What is the difference between a Social discontinuity and Routine Social Change?

Social Discontinuity: The demands made on business are part of a larger series of changes occurring throughout the social system. Many difficult problems are arising because of very rapid change which is upsetting the delicate equilibrium in our complex society. The four most significant discontinuities are: A. Technological innovations such as the computer and television. Which are having major efforts not only on business but on the whole society. B. Development of a world economy of one market but without suitable institutions for handling it. With the one exceptions of the multinational corporation. C. A pluralistic social system in which social tasks are mostly entrusted to large institutions. D. Most important of all, a knowledge revolution which has made knowledge the crucial resource of society. 

Social Change: Social change refers to any significant alteration over time in behavior patterns and cultural values and norms. By “significant” alteration, sociologists mean changes yielding profound social consequences. Examples of significant social changes having long-term effects include the industrial revolution, the abolition of slavery, and the feminist movement.