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If a computer is running but no visual output appears, which component should be checked first?

Answer and explanation

Correct answer: Monitor and video cable

When the computer appears to run but the screen is blank, the first practical checks are whether the monitor has power, the correct input is selected, and the video cable is firmly connected at both ends. These checks target the visual-output path directly and are simple and safe. A microphone, printer, or speaker cannot display the computer image. Thus, option D is the most appropriate first check.

Related tags

MonitorVideo-CableOutput-DeviceTroubleshootingBasic Components Of A Computer SystemIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills IArtificial Intelligence

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