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ä |
Batch
multiprogramming does not support
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interaction
with users
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ä |
TSS
extends multiprogramming to handle multiple
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interactive
jobs
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ä |
Processor’s
time is shared among multiple users
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ä |
Multiple
users simultaneously access the system
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through
terminals
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ä |
Because
of slow human reaction time, a typical user
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needs
2 sec of processing time per minute
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ä |
Then
(about) 30 users should be able to share the
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same
system without noticeable delay in the
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computer
reaction time
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ä |
The
file system must be protected (multiple
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users…)
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