Monitor is a display for a computer system.
monitor is the primary memorable device.
a printer is a device that builds one static image and captures it permanently on a suitable medium.
a printer cannot project information unlike a monitor.
a monitor is mainly used for commands.
Monitor, keyboard, CPU, mouse, and I believe the USB drive , DVD drive and hardware system
Answer is C = Speaker
How? as the speaker is the only item on the list that displays any type of content, that being audio, it's the only feasible answer to this question.
#22 is 1s and 0s, hope that helps a little bit
The answer would be 2&5 because this is correct