Operating System (OS)
Which of following is/are the advantage(s) of modular programming?

Modules can be reused in other programs
None of these
The program is much easier to change
Easy debugging
Easy to compile

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Operating System (OS)
The CPU, after receiving an interrupt from an I/O device

branches off to the interrupt service routine after completion of the current instruction
hands over control of address bus and data bus to the interrupting device
None of these
halts for a predetermined time
branches off to the interrupt service routine immediately

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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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