Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
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A CDE Definition

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The number of oscillations (vibrations) in one second. Frequency is measured in Hertz (Hz), which is the same as "oscillations per second" or "cycles per second." For example, the alternating current in a wall outlet in the U.S. and Canada is 60Hz. Electromagnetic radiation is measured in kiloHertz (kHz), megahertz (MHz) and gigahertz (GHz). See wavelength, frequency response, audio, carrier and space/time.

The frequency is the number of oscillations per second. The higher the frequency (the closer the ripples would be in this diagram) and the shorter the wavelength.

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Freenetfrequency band
Freespirefrequency bands
Freestylefrequency division multiplexing
FreeSyncfrequency hopping
freetextfrequency masking
freewarefrequency modulation
freezefrequency range
freeze-frame videofrequency response
freezingfrequency shift
fremiumfresh out of the box

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