Operating System (OS)
A Processor

is the device where information is stored
is a device that performs a sequence of operations specified by instructions in memory.
is typically characterized by interactive processing and time of the CPU
is a sequence of instructions
None of these

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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
None of these
the command set being common across different hardware configurations
users can create system programs and run them as commands
the processing is much faster than would other-wise be the case when user defined commands are used

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