Question

timmy works in the graphics department, and has received approval to upgrade his video card. the card has arrived, and you are ready to begin the upgrade by replacing the old video card with the new one in his workstation. to ensure your personal safety, which of the following should you do first?
☐ place the computer on an esd mat.
☐ remove jewelry.
☐ disconnect power.
☐ put on safety glasses.

Explanation:

When upgrading a video card (handling computer hardware), the first safety step to prevent electrical hazards is to disconnect the power source to the computer. Placing on an ESD mat (for static) or removing jewelry (static/physical) or safety glasses (physical debris) are important but not the first. Disconnecting power eliminates electrical risk first.

Answer:

C. Disconnect power