Clock
1. An electronic component that emits consistent signals, like a metronome, that paces a computer's
operations. 2. An oscillator-generated signal that provides a timing reference for a Transmission link. A
clock provides signals used in a transmission system to control the timing of certain functions, such as
the duration of signal elements or the sampling rate. It also generates periodic, accurately spaced
signals used for such purposes as timing, regulation of the operations of a processor, or generation of
interrupts. A clock has two functions: to generate periodic signals for synchronization on a
transmission facility, and to provide a time base for the sampling of signal elements. In computers, a
clock synchronizes certain procedures, such as communication with other devices.
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