. . . Section E - After reading Section E. you should be able to: List at least five commonly used computer input devices and explain how and when they are used Briefly explain how LCD and LED display technologies work List and discuss the factors that affect image quality on a display device Explain the meaning of specifications such as 720p and 1080p Describe the relationship between a monitor's resolution setting and text size List the features to be considered when choosing a printer Explain the function of a printer language and list the two most popular Explain the popularity of USB for expanding a computer system - . . . . Explain the importance of expansion cards and slots . List and identify five types of expansion ports List and identify three types of audiovisual ports