Disk Operating System (DOS) Question:
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Scandisk

a. Checks the disk
b. Give information about disk
c. Run from DOS mode
d. All of the above

d. All of the above

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How can you optimize performance of your computer? a. Delete unused files b. Defrag disk c. Scan for virus d. All of above	Batch file is used to: a. Run program b. Show the contents c. run commands automatically d. All of above