How is the transfer time calculated in a disk ?

Question

Transfer time is the time taken to read the complete sector , so how does this formula comes ?

T= 1/( no of sectors per track ) * 60/ rpm

 

I am unable to get that how come no of sectors per track comes , since transfer time is the time taken to read one complete sector and on a track many sectors are present , so how come it is taking into consideration all the sectors present on the track ?

Answer 1

Well u are assuming the definition of transfer time. Its definition may vary according to context of the question . sometime they also include the seek time, rotational latency and the actual time need to transfer it will be given in the question. basically transfer time is included till stated by question

transfer time = seek time + rotational latency + time to read data

there will always be data present to find the number of sector present on the disk. u have not specified any of the question so i am unable to provide the exact solution.

u can easily calculate it . i will suggest not to learn anything like the complicated formula . keep thing simple there are hell lot of concepts to remember . u post a question instead . then i may help u more.