Operating System (OS)
File record length

should be chosen to match the data characteristics
None of these
depends upon the size of the file
Should always be variable
should always be fixed

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

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Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

None of these
the failure of one device may affect other devices on the chain
it is relatively easy to add more devices to the chain
priority is programmable
the number of control lines is independent of the number of devices on the chain

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