CPU running at full capacity when boot to DOS?

Posted by Kevin H on Super User See other posts from Super User or by Kevin H
Published on 2011-12-18T05:02:42Z Indexed on 2012/07/11 9:18 UTC
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cpu

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ms-dos

Does the CPU is run at 100% or near full capacity when the computer is booted into MS-DOS? Will the CPU temperature become higher even though we are not running any program in DOS mode?

In Windows, we can see the CPU usage in % of utilization in Task Manager. From what I heard, CPU is running at near 100% capacity in DOS OS or in the BIOS MAIN screen.

Is this caused by lack of CPU optimization in DOS OS?

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