Final answer:
A device known as a Token Ring Controller manages token passing in a network, ensuring organised communication by preventing collisions.
Step-by-step explanation:
The device that manages the passing of the token, instead of relying on individual computers to pass it, is known as a Token Ring Controller or sometimes referred to as a Token Ring MAU (Multistation Access Unit). This type of network setup allows for an organized method of communication where each device in turn has the opportunity to transmit data. A Token Ring network is built on a protocol that employs a token-passing method as a means of mitigating collisions on the network; the token circulates around the network's devices which can only send information when they possess the token. In scenarios where no central device is managing the token, it would correspond to a peer-to-peer network where each device is responsible for passing the token to the next device in the sequence.