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Operating System (OS)

Operating System (OS)
Which of the following is not an operating system ?

Notepad
Linux
Mac OS
Windows 2000

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Operating System (OS)
Non-modifiable procedures are called

topdown procedures
serially usable procedures
reentrant procedures
concurrent procedures
None of these

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Operating System (OS)
In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the contents of this register is incremented to point to the next item in the list?

auto decrement
index addressing
indirect addressing
None of these
auto increment

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

Operating system
System environment
Operating environment
None

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Operating System (OS)
In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?

best fit
worst fit
first fit
None of these
buddy

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Operating System (OS)
Which of the following is not applications software?

Word processing
Spreadsheet
Desktop publishing
UNIX
None of these

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