Disc Operating System (DOS)
Which statement is correct?

1 millisec = 10 ^ 3 sec
Files can not be kept inside a directory
Directories can be kept inside a file
None of the listed here

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

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

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