Operating System (OS)
The advantage of a command processor running only built-in commands is:

flexibility to the users in running lists of commands by simply collecting them in named batch command files
the processing is much faster than would other-wise be the case when user defined commands are used
None of these
the command set being common across different hardware configurations
users can create system programs and run them as commands

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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
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
have both their operands in the main store.

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Operating System (OS)
Scheduling is

allowing jobs to use the processor
the same regard-less of the purpose of the system
None of these
unrelated to performance consideration
not required in uniprocessor systems

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