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?

indirect addressing
index addressing
None of these
auto decrement
auto increment

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Operating System (OS)
Data encryption

is mostly used by public networks
is not necessary, since data cannot be intercepted
cannot be used by private installations
None of these
is mostly used by financial networks

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Operating System (OS)
The term "operating system" means

a set of programs which controls computer working
the way a floppy disk drive operates
conversion of high level language into machine code
None of these
the way a computer operator works

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