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Operating System (OS)

Operating System (OS)
What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?

1
None of these
8
16

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Operating System (OS)
What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?

Fixed values
Default values
None of these
Defined values
Special values

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Operating System (OS)
To send email, we use

MS Excel
HTML
Outlook Explorer
Netscape navigator

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Operating System (OS)
Which is the layer of a computer system between the hardware and the user program

System environment
Operating system
Operating environment
None

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Operating System (OS)
With MS-DOS which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one?

FAT command
None of these
VER command
CHKDSK command
FORMAT command

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Operating System (OS)
Which of the following is not a mode in starting windows ?

Turbo mode
Normal mode
Command prompt
Safe mode

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