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Terminology - 117
Contrast By strengthening or weakening the tone of the colors, it is possible to project
characters and pictures more clearly and attain a softer tint. This is known as
contrast adjustment.
Tracking Outputs computer signals at a pre-determined frequency. The image will not
be projected clearly unless this frequency is aligned with the frequency of the
projector. Aligning the signal frequency is known as tracking. Projected
images will be subject to distrubance, blurring and horizontal noise if not syn-
chronized.