Clock Drift

Clock drift refers to several related phenomena where a clock does not run at the exact right speed compared to another clock. That is, after some time the clock "drifts apart" from the other clock. This phenomenon is also used for instance in computers to build random number generators. On the negative side, clock drift can be exploited by timing attacks.

Read more about Clock Drift:  Clock Drift in Normal Clocks, Atomic Clocks, Relativity, Random Number Generators, Timing Attack

Famous quotes containing the words clock and/or drift:

    We all run on two clocks. One is the outside clock, which ticks away our decades and brings us ceaselessly to the dry season. The other is the inside clock, where you are your own timekeeper and determine your own chronology, your own internal weather and your own rate of living. Sometimes the inner clock runs itself out long before the outer one, and you see a dead man going through the motions of living.
    Max Lerner (b. 1902)

    To drift with every passion till my soul
    Is a stringed lute on which all winds can play,
    Is it for this that I have given away
    Mine ancient wisdom, and austere control?
    Methinks my life is a twice-written scroll
    Scrawled over on some boyish holiday
    Oscar Wilde (1854–1900)