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The binary data (the 1's and Oss) are put together and the CD-R has been read. Now let's assume a hard disk with one platter rotates at 15,000 rpm and has 1024 and has1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 milli seconds for every 100 tracks it crosses. (a) What is the average seeking time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?

The binary data (the 1's and Oss) are put together and the CD-R has been read. Now let's assume a hard disk with one platter rotates at 15,000 rpm and has 1024 and has1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 milli seconds for every 100 tracks it crosses. (a) What is the average seeking time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Assignment Problem-29 Roll Number: Subject Code: CO767 A single track runs in a spiral pattern from the center of the disc to the side. A high-powered laser is shone onto the CD-R, changing the transparency (permanently) of the dye above. The transparent and opaque parts represent binary 1s and Os. The disc spins and the laser follow the track, putting the binary data onto the CD-R in a spiral track. The data has been written. A single track runs in a spiral pattern from the center of the disc to the outside, this track is made of pits and lands to represent the ones and zeroes of binary data. A low-powered laser is shone on the surface and the reflection is captured in a photodiode sensor. The dye will reflect differently to the transparent dye (which would just reflect the metal underneath it), meaning it can tell the difference between a 1 and 0. opaque The disc spins and the laser follow the track. The binary data (the 1's and Oss) are put together and the CD-R has been read. Now let's assume a hard disk with one platter rotates at 15,000 rpm and has 1024 and has1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 milli seconds for every 100 tracks it crosses. (a) What is the average seeking time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?
Transcribed Image Text:Assignment Problem-29 Roll Number: Subject Code: CO767 A single track runs in a spiral pattern from the center of the disc to the side. A high-powered laser is shone onto the CD-R, changing the transparency (permanently) of the dye above. The transparent and opaque parts represent binary 1s and Os. The disc spins and the laser follow the track, putting the binary data onto the CD-R in a spiral track. The data has been written. A single track runs in a spiral pattern from the center of the disc to the outside, this track is made of pits and lands to represent the ones and zeroes of binary data. A low-powered laser is shone on the surface and the reflection is captured in a photodiode sensor. The dye will reflect differently to the transparent dye (which would just reflect the metal underneath it), meaning it can tell the difference between a 1 and 0. opaque The disc spins and the laser follow the track. The binary data (the 1's and Oss) are put together and the CD-R has been read. Now let's assume a hard disk with one platter rotates at 15,000 rpm and has 1024 and has1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 milli seconds for every 100 tracks it crosses. (a) What is the average seeking time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?
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