A new HDD offers 1.5MB/s data transfer rate to/from main memory. How much total time HDD will take to transfer 3GB of data to main memory? Keeping in mind that the HDD takes 0.5x10-6 seconds to move the head to required track and it takes 0.25x10-6 seconds for the data to rotate under the head
Answers
total time HDD will take to transfer 3GB of data to main memory = 33 Mins 48 Secs
Explanation:
1.5MB/s data transfer rate to/from main memory
Data to transfer = 3GB = 3 * 1024 MB
Time Taken = 3 * 1024 / 1.5
= 2 * 1024
= 2028 Secs
HDD takes 0.5x10⁻⁶ seconds to move the head to required track and it takes 0.25x10⁻⁶ seconds for the data to rotate under the head
There are not enough details to use this data
and use given data directly is very less compared to 2028 secs and can be neglected
Hence total time take = 2028 secs
= 33 Mins 48 Secs
total time HDD will take to transfer 3GB of data to main memory = 33 Mins 48 Secs
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Answer:
total time HDD will take 3 GB of data to take memory. 38 minutes 48 seconds.