Operating System (OS)
Operating system is

All of these
None of these
A collection of input-output devices
A collection of hardware components
A collection of software routines

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The LRU algorithm

None of these
pages out the first page in a given area
pages out pages that have been used recently
pages out pages that have been least used recently
pages out pages that have not been used recently

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Memory management is :

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

ANSWER DOWNLOAD EXAMIANS APP