Each time you turn on your computer, it will check on the control file
Options:
A .  Command.com, io.sys
B .  Command.com, date.com, dir.com
C .  Command.com, io.sys, msdos.sys
D .  Chkdsk.exe
Answer: Option C command.com, io.sys and msdos.sys are the essential system files of MS-Dos. Loading these files from disk into memory is known as booting. Booting is the process of preparing your computer to work.
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