If you worked with color (like graphics designer for example) you wanted to avoid turning off your monitor because you needed at least 30 minutes of warm up to stabilize brightness and color fidelity of a CRT. Showing anything beside blank screen indicated to you that the computer is turned on. Animation has been obvious to avoid burn in.
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If you worked with color (like graphics designer for example) you wanted to avoid turning off your monitor because you needed at least 30 minutes of warm up to stabilize brightness and color fidelity of a CRT. Showing anything beside blank screen indicated to you that the computer is turned on. Animation has been obvious to avoid burn in.