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

branches off to the interrupt service routine immediately
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

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Operating System (OS)
Daisy chain is a device for

connecting a number of devices to a controller
connecting a number of controllers to a device
All of these
None of these
interconnecting a number of devices to a number of controllers

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Operating System (OS)
The advantage of a command processor running only built-in commands is:

the command set being common across different hardware configurations
None of these
the processing is much faster than would other-wise be the case when user defined commands are used
flexibility to the users in running lists of commands by simply collecting them in named batch command files
users can create system programs and run them as commands

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Operating System (OS)
The FIFO algorithm

None of these
executes first the job with the least processor needs
execute first the job that has been in the queue the longest
executes first the job that last entered the queue
executes first the job that first entered the queue

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