Answer: The three RGB colors are each 8-bits (possible values [0.. 255], 2 to the power of 8 = 256) of each of Red, Green, and Blue. The three 8-bit RGB components can create up to 256×256×256 = 16.7 million possible RGB color combinations, called 24-bit "color".
Explanation:
Modem provides internet, WiFi, we can connect multiple devices to internet through modem.
Modem provides radiation of short wavelength and the transmitter in your mobile phones and computers convert those radiations into digital signals and vice-versa.
I think the First reason is; it provides the best way of business communication.
Second reason, streamline communication
Third reason cost effective resource sharing :) (hope this helps)