Operating system that would allow the users to personalize preferences within the operating system,

A911 dispatcher is the sole sender of messages to all police officers. while on patrol, officers communicate with the dispatcher who, in turn, relays messages to other officers. the officers do not communicate directly with one another. this illustrates a network.

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.

To check whether your writing is clear , you can