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An I/O system is consisting of a selector channel attached with a tape drive of 10 KBps and a disk drive of 16 KBps and a multiplexer channel attached with 10 line printers, each of 1 Kbps rate.

What is the effective data transfer rate in KBps?

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At a time only one device can be serviced, for maximum data transfer rate we are selecting disk drive(bcz its rate is greater than tape drive) and mux has 10 printers attached to it:

So effective rate= 16KBps+(10/8)KBps=17.25KBps

I hope d answer helps you. :)

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