In what fundamental ways are these types of networks different?

The public telephone system is an example of a circuit switched network, in which two endpoints must have a dedicated connection to transmit data. The digital age has seen the development of the packet switched network. In what fundamental ways are these types of networks different? What communications technologies and consumer applications have been made possible by the packet switched network?

As the saying goes, for any major endeavor ‘it takes a village’. The same is true for information management. List at least four departments or roles that must be involved when creating an information management council. Include a description of what their responsibilities would be.