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collision detection

(1) In networks, collision detection is the process by which a node determines that a collision has occurred. Collisions occur with most networks, so a protocol is required to recover from such events. Ethernet uses CSMA/CDas its collision detection and recovery system.

(2) In virtual reality environments, collision detection is a program interface that determines how close a user is to a real physical objects and will stop their movement before colliding with the object.

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