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

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

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Operating System (OS)
Daisy chain is a device for

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

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Operating System (OS)
All of the following are task performed by the operating system except

Provides an interface for user to interact with computer
Performing housekeeping task like file compression and disk defragmentation
Managing hardware on the computer
Controlling the access that application program has to the CPU

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