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Operating System (OS)

Operating System (OS)
Which of the following does not support more than one program at a time?

Unix
Linux
Windows
DOS

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Operating System (OS)
Which of the following is a block device

disk
printer
terminals
None of these
mouse

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Operating System (OS)
A file organization component of a VSAM file is:

None of these
All of these
entry sequential data set
keyed sequential data set
relative record data set

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Operating System (OS)
In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction.

index mode
immediate mode
absolute mode
modulus mode
None of these

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Operating System (OS)
Which of the following are loaded in safe mode ?

VGA drive
Mouse driver
Keyboard driver
All of the listed here

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Operating System (OS)
Which of the following is a type of systems software used on microcomputers?

Unix
PC-DOS
None of these
All of these
MS-DOS

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