You have replaced the memory in a laptop computer. What would cause the reported memory to be lower than the actual physical memory?
Understand the Problem
The question is asking about a scenario where a laptop's reported memory is less than the actual physical memory after a memory replacement. We need to determine which of the given options could be a valid reason for this discrepancy.
Answer
Shared video memory
The correct answer is B) Shared video memory. This is because some of the system's RAM is allocated to the video card for processing graphics, thus reducing the amount of memory available for other tasks.
Answer for screen readers
The correct answer is B) Shared video memory. This is because some of the system's RAM is allocated to the video card for processing graphics, thus reducing the amount of memory available for other tasks.
More Information
Shared video memory is a portion of the system's RAM that is dedicated to the graphics processing unit (GPU). This allows the GPU to access memory directly without needing to copy data from system RAM, improving performance. However, this also reduces the total amount of RAM available to the operating system and other applications.
Tips
Some common mistakes include assuming all RAM is usable by the operating system, not accounting for hardware reservations, or overlooking the impact of a 32-bit operating system on memory addressing.
Sources
- Test Questions Flashcards - quizlet.com
- Why is the available memory of a PC always less than the total ... - quora.com
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