Charles Babbage is most often considered to be the father of computing after his invention of the Analytical Engine in 1837 which contained <span>Arithmetic Logic Unit (ALU), basic flow control, and integrated memory which served as a general-purpose computer concept (and also very ahead of time in 1837).</span>
In sinusoidal functions or in waves, "phase" has two different, but closely related, meanings. One is the initial angle of a sinusoidal function at its origin and is sometimes called phase offset or phase difference. Another usage is the fraction of the wave cycle that has elapsed relative to the origin.
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