116. The total transfer time for a disk I/O operation magnetic is equal to 36 msec. Knowing that the total seek time is equal to 13 msec and that 2MB have been transferred at a speed equal to 1 Gbit/sec what is the rotational delay of the disk? (Remember that 1 B = 1 byte = 8 bit)

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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And also the below question also if some one can help me to solve 

the answer for this question is 7msec but i don't know how he got it

 

116. The total transfer time for a disk I/O operation
magnetic is equal to 36 msec. Knowing that the total seek time is equal to 13
msec and that 2MB have been transferred at a speed equal to 1 Gbit/sec what
is the rotational delay of the disk? (Remember that 1 B = 1 byte = 8 bit)
Transcribed Image Text:116. The total transfer time for a disk I/O operation magnetic is equal to 36 msec. Knowing that the total seek time is equal to 13 msec and that 2MB have been transferred at a speed equal to 1 Gbit/sec what is the rotational delay of the disk? (Remember that 1 B = 1 byte = 8 bit)
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