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Correlate the readings of an instrument, sensor, etc. with those of a standard in order to check its accuracy. Adjust experimental results to take external factors into account or to allow comparison with other data.

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What is VAR knob used for and why should it be usually in CAL position in analog scopes?

When the "Var" knob is set for "CAL", then the vertical sensitivity (or other function) matches what you see on the screen. If you have the range set for 1 volt per division, then "CAL" = 1V/div. Bu …
Richard Crowley's user avatar
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Is each individual CPU calibrated before being shipped?

There is typically nothing inside a CPU chip that requires any kind of "calibration". CPU chips are certainly tested to confirm they operate properly. …
Richard Crowley's user avatar