COGNITIVE ASSESSMENT What Was the Original Purpose of a Screen

question 106

Multiple Choice

COGNITIVE ASSESSMENT What was the original purpose of a screen saver?

• A) to prevent images from being permanently etched on a monitor's screen
• B) to protect a computer by requiring a password to deactivate it
• C) to prevent access by hackers and avoid viruses
• D) to save energy by reducing the monitor activity

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Definitions:

R

In electrical engineering, symbolically represents resistance, the property of a material that opposes the flow of electric current, measured in ohms (Ω).

Z

Often represents impedance in electrical circuits, a measure of opposition to AC including both resistance and reactance.

RC Parallel Circuit

A circuit configuration consisting of a resistor (R) and a capacitor (C) connected in parallel with each other across a power supply.

R

Commonly used to symbolize resistance in electrical equations and diagrams, measured in ohms (Ω).