Dùng đại số quan hệ để tìm tên bắt đầu bằng chữ B

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.

Difference between ancient and modern mode of information transmission

What is the disadvantage of a mesh topology?