Operating System (OS)
Under virtual storage,

interprogram interference may occur
None of these
a single program is processed by two or more CPUs
only the active pages of a program are stored in primary storage
two or more programs are stored concurrently in primary storage

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Operating System (OS)
A spooler is a

Queue of print job that are waiting to print
Location in memory that maintains the contents of documents until it prints
Message sent from the printer to the operating system when a print job is completed
Program that coordinates the print job that are waiting to process

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Operating System (OS)
The Storage-to-Storage instructions

which perform indicated operations on two fast registers of the machine and have the result in one of the registers
which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, expect in the case of store operation when it is also
All of these
have both their operands in the main store.
None of these

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