Disc Operating System (DOS)
Each time you turn the power switch on, which control files will the computer check?

C0MMAND.COM, IO.SYS, MSDOS.SYS
COMMAND.COM, DATE.COM, TIME.COM
COMMAND.COM, DATE.COM, TIME.COM
CHKDSK.EXE

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Disc Operating System (DOS)
Which of the following applies to external DOS commands?

External commands are stored on disk separately from COMMAND.COM
External commands reside in RAM until called
External commands must always be used with the /e switch
External commands can only be executed from a batch file.

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