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Luden
16 days ago
10

Consider a single-platter disk with the following parameters: rotation speed: 7200 rpm; number of tracks on one side ofplatter:

30,000; number of sectors per track: 600; seek time: one ms for every hundred tracks traversed. Let the diskreceive a request to access a random sector on a random track and assume the disk head starts at track 0.a. What is the average seek time?b. What is the average rotational latency?c. What is the transfer time for a sector?d. What is the total average time to satisfy a request?
Computers and Technology
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Response:

#code (count_seq.py)

def count_seq():

   n='2'

   while True:

       yield int(n)

       next_value=''

       while len(n)>0:

           first=n[0]

           count=0

     

           while len(n)>0 and n[0]==first:

               count+=1

               n=n[1:]

           next_value+='{}{}'.format(count,first)

       n=next_value

if __name__ == '__main__':

   gen=count_seq()

   for i in range(10):

       print(next(gen))

Clarification:

  • Begin with the number 2. Utilize a string for easier manipulation rather than integers.
  • Engage in an infinite loop.
  • Yield the current integer value of n.
  • Continue looping until n becomes an empty string.
  • Repeat as long as n has content and the first digit matches the leading digit.
  • Concatenate the count and the first digit to form next_value.
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Explanation:

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An unshielded ethernet cable, made from copper, might function as an antenna; any external noise that interferes with it can corrupt the data signal, resulting in data integrity issues and distorted signals.

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