Operating System (OS)
Interprocess communication

is usually done via disk drives
None of these
is never necessary,
allows processes to synchronize activity
is required for all processes

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

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

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Operating System (OS)
The term 'polling' in a computer means a process by which a computer system

inquires to see if a terminal has any transaction to send
None of these
multiplexes the inputs and updates the memory accordingly
decides correct alternative by analysing several ones
detects/corrects errors

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