Well think of it like this lets say this wasn't and security system and it was a video game console and remote.
Now the console or keypad or the main components the power on or shut off the devices and the remote or sensors are the secondary parts but they are needed to help the console or keypad figure out what they are doing.
Answer:
theme colors
Explanation:
As said, a group of colors that are used to format text and objects in a document. When you open the Color menu, these colors determine what you see.
<span>A linear bus topology uses a common background cable to connect all network devices.</span>
C. ">" denotes the end of an element. For instance <b>Hello!</b> or <hr />
It means multiplying or dividing by 10, 100, 1000, etc
