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
have both their operands in the main store.
None of these
All of these
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

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Operating System (OS)
Memory management is :

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

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