Example: "Computers on a token-ring network can only send data when they have the token."

A token is a group of bits that are transferred between computers on a token-ring network. Whichever computer has the token can send data to the other systems on the network. This ensures that only one computer can send data at a time.

A token may also refer to a network security card, also known as a hard token.

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Definition from the PC Glossary