Operating Systems第 23 / 100 题
What does the term 'virtual memory' describe?
a.Using disk space to extend the apparent amount of RAM available
b.A cloud storage service
c.The memory built into a GPU
d.A backup of the BIOS settings
解析
Virtual memory lets the operating system use a portion of the disk, called a page file or swap, as an extension of physical RAM. This allows more programs to run than would fit in RAM alone. However, disk is much slower than RAM, so heavy swapping can reduce performance.
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