Keep in mind I never took nor studied for the A+ so this may or may not be what you are talking about...

Maybe if you are more specific about what it's asking, I could give a more specific answer. Here is what I assume it's talking about.

You could use AUTOEXEC.BAT => it's a file containing all DOS commands that you want to run at startup

Or, if they are just talking about using the command line, you are going to have to be more specific in what commands you want to send. The basic syntax looks like [command] [target] [switches] . For additional help with the commands typeHelp into the command prompt.

I'll give you an example of some basic command line stuff:

1) Go to the command prompt by holding the windows key + r -> type cmd and hit enter.

2) From the promt type CD\ that will change you to the root directory. If you type CD.. that would take you up just one level instead of all the way to the root.

3) Now that you are at the root type md newtest and hit enter

4) now type dir /p hit enter this will show the directory structure one page at a time. You should see we created the directory c:\newtest

5) Now to remove it we could use rd newtest, but if the directory had sub-directories or files this would not work. So let pretend it has some files in it and we want to remove the directory and files. There's two commands that should work DEL [Directory Name] or DELTREE [Directory Name]. So type DEL newtest and hit enter.

It should return with
c:\newtest\*,Are you sure <Y/N>?

So type Y and hit enter

6) Now type dir /p again and notice the directory c:\newtest no longer exist, any files or sub-directories would also be removed using this method.
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Now, that's just the basics obviously. Remember I mentioned you could use AUTOEXEC.BAT

From the command prompt type:
edit c:\autoexec.bat

or

edit c:\config.sys

After windows 95 though they included a utility for this...

Hold the windows key + r, type sysedit

You can see some various windows files in an editor.
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Command Files
Something a bit more simple...

Say you want to stop and remove a service from running on the machine.

You could paste that into Notepad. Save it as service.cmd and Save type All Files. Then double click on the file.

It will stop the service, delete the service, then delete the service.cmd file you just made, then exit the command line.

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If they are looking for something different I apologize.

In my opinion all these are sending commands to the cpu

The only other thing I was thinking it might be referring to was BIOS - controlling cpu fan speed ect. But the more I thought about it, the more I figured they are referring to windows.

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