Concept:A network refers to connected computers that can share information.
Explanation:Computers are linked together to form a network.
The main purpose of a network is to enable communication and data exchange between devices.
An information bank simply stores data and does not represent connected computers.
A database is an organized collection of data, not a group of computers.
An intranet site is a website within a private network, not the collection of computers itself.
Therefore, a group of computers that exchange data is called a network.
Answer:B. a network.