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Are
the first operating systems (mid-50s)
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The
user submit a job (written on card or
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tape)
to a computer operator
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The
computer operator place a batch of
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several
jobs on a input device
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A
special program, the monitor,
manages
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the
execution of each program in the batch
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Resident monitor is in main memory and
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available
for execution
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Monitor
utilities are loaded when needed
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