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  • heartbeat
    n. 1. The signal emitted by a Level 2 Ethernet transceiver at the end of every packet to show that the collision-detection circuit is... VIEW ENTIRE DEFINITION


    •  View Definition: bathtub curve 

    bathtub curve

    n. Common term for the curve (resembling an end-to-end section of one of those claw-footed antique bathtubs) that describes the expected failure rate of electronics with time initially high, dropping to near 0 for most of the system's lifetime, then rising again as it `tires out'. See also {burn-in period}, infant mortality.