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4. Suppose you replace the hard disk in the previous question with an optical drive like a DVD drive. The drive you use has an average access time of 185ms and can-do sustained reads at 1600 Kbytes per second. How long will it take, including access time, to read the same 750 Kbytes off this optical disk (again, assuming all the data is in sequential sectors on same track)

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ajeigbeibraheem

The total time it will take to read the same 750 Kbytes off the optical disk is 653.75 ms

Considering the parameters given in the question, the total time taken to read the same drive is the addition of the average access time together with the time to transfer the data.

Mathematically;

Total Time taken = Access time (avg.) + data transfer time

where;

  • access time(avg.) = 185 ms

the data transfer time can be estimated by using the formula:

= required quantity of data transferred/ speed of data transfer

= 750 kbytes ÷ 1600 Kbytes/s

= 0.46875  s

= 468.75 ms

∴

Total Time taken = 185 ms + 468.75 ms

= 653.75 ms

Learn more about data transfer time here:

https://brainly.com/question/9381456?referrer=searchResults

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