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Operating System (OS)

Operating System (OS)
Which of the following separates primary file and extension is

Point
Period
Dot
All of these

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Operating System (OS)
The errors that can be pointed out by the compiler are

None of these
Semantic errors
Internal errors
Logical errors
Syntax errors

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

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

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Operating System (OS)
To prevent the addition and deletion of files on a disk or tape we use

Create back up
Format
None of above
Write protect

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Operating System (OS)
The command interpreter

requires fixed format commands
is usually the primary user interface
None of these
is menu drive
is quite different from the SCL interpreter

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Operating System (OS)
In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?

None of these
index addressing
indirect addressing
auto decrement
auto increment

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