1. Hard Disk. A hard drive has eight surfaces, with 4192 tracks per surface and

Question

1.      Hard Disk.

A hard drive has eight surfaces, with 4192 tracks per surface and a constant 2048 sectors per track. Sector size is 1K bytes. The average seek time is 8 ms, the track-to-track access time is 1.5 ms, and the drive runs at 7200 rpm. Successive tracks in a cylinder can be read without head movement.

a.       What is the drive capacity?  

b.      What is the average access time for the drive?  

c.       Estimate the time required to transfer a 5MB file. What is the burst transfer rate?

2.      Printer

A 5

Explanation / Answer

a


Total size = cylinders * surfaces * sectors per track * 1024 bytes

              = 1*8*4192*1024

               =34340864

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