What is a good first step in diagnosing system throughput issues?

Which group on the home tab allows you to add shapes to a powerpoint slide?

Need ! will choose brainliest! discuss the role of abstraction in the history of computer software.

Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.