Operating System (OS)
Memory management is :

None of these
not used on multiprogramming systems
not used in modern operating system
critical for even the simplest operating systems
replaced with virtual memory on current systems

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Operating System (OS)
Daisy chain is a device for

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

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