Why is the Task Manager Total Physical Memory not 2048 MB or 2 GB

Posted by Dorothy on Super User See other posts from Super User or by Dorothy
Published on 2011-06-28T15:26:05Z Indexed on 2011/06/28 16:24 UTC
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command-line

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memory

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cpu

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task-manager

I found 3 numbers for the Total Physical Memory:

In the Task Manager under the Performance tab: 1978 MB
In Computer Properties: 2 GB
And running wmic computersystem get TotalPhysicalMemory /format:list in the command line: 2074554368 Bites

Number 1 matches Number 3 except Number 1 is rounded. When I convert Number 3 to GB 2074554368 / 1024 / 1024 / 1024 I don't quite get 2 GB. I get 1.93207932 GB.

Why does Number 1 and Number 3 not match Number 2?

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