No USB Device Appears to Work on a New Computer

question 83

Multiple Choice

No USB device appears to work on a new computer whether attached to a USB hub that attaches to a USB port or any device that attaches directly to the computerʹs USB port. What is a logical next step?

• A) Try all the USB devices on another computer.
• B) Check the power supply for proper voltage output.
• C) Ensure the BIOS has the USB ports enabled.
• D) Add an external power source to the USB hub.
• E) Replace the USB hub.

Determine the opportunity costs involved in make-or-buy decisions.

Calculate avoidable fixed costs and their impact on make-or-buy decisions.

Understand the relevance of incremental costs and revenues in decision-making.

Analyze relevant costs in retain or replace equipment decisions.

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Definitions:

Saccadic Eye Movement

Rapid movements of the eye that change the point of fixation, allowing the eye to quickly scan different areas of the visual field.

Visual Areas

Regions of the brain involved in processing visual information, located primarily in the occipital lobe.

Peripheral Vision

The part of vision that occurs outside the very center of gaze, allowing humans to detect movement and shapes without focusing directly on them.

Saccades

Rapid eye movements between periods of fixation, used in reading and scanning visual environments.