A 32-bit computer has two selector channels and one multiplexor channel.Each sel
ID: 3761257 • Letter: A
Question
A 32-bit computer has two selector channels and one multiplexor channel.Each selector channel supports two magnetic disk and two magnetic tape units. The multiplexorchannel has two line printers, two card readers, and 10 VDT terminals connected to it. Assumethe following transfer rates:
Estimate the maximum aggregate I/O transfer rate in this system in case that all the threechannels transfer data simultaneously.
800 Kbytes/s Disk drive Magnetic tape drive 200 Kbytes/s Line printer Card reader VDT 6.6 Kbytes/s 1.2 Kbytes/s 1 Kbyte/sExplanation / Answer
Answer: 800 *2+ 6.6*2 + 1.2*2 + 1*10 = 1625.6
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