Mainframes. Please respond to the following: Take a position on the following statement, ?Mainframe computers are still needed even though personal computers and workstations have increased in capabilities.? Defend your position by providing at least one example to support your position. Part 2 Circuit Switching and Packet Switching. Please respond to the following: Assuming your daily routine stayed the same, speculate the problems you would have if the Internet didn?t exist. Speculate the problems of a familiar organization given the same scenario.