Because, they are all required to configure to it to be recognized by an operating system.
Explanation:
It is the Operating System Software that instructs the hardware and puts them together to work well. When the manufacturer does not configure the device to be recognized by an operating system, then it will not work with other components.
Example.
If an Apple machine's sound card is being put in an HP machine which uses Microsoft designed operating system, won't work due to the operating system that the sound card has been designed for.
Answer:
An online lesson will be good.
Answer:
Create three GPOs, one for each site, with the appropriate security settings. Apply the GPOs to the corresponding site, and enforce the GPO.
Answer: c
Explanation: connect the printer to a users work station and share the device