Operating System (OS)
The file structure that redefines its first record at a base of zero uses the term:

key fielding
dynamic reallocation
hashing
None of these
relative organization

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

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

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