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User Verma Ashish

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Member for: 1 year (since Mar 19, 2018)
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Full name: Ashish verma
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Activity by Verma Ashish

Score: 339 points (ranked #10)
Posts: 0
Questions: 6 (1 with best answer chosen)
Answers: 13 (7 chosen as best)
Comments: 110
Voted on: 9 questions, 10 answers
Gave out: 19 up votes, 0 down votes
Received: 52 up votes, 5 down votes

Wall for Verma Ashish

https://gateoverflow.in/2650/gate1995-14?show=150158


disk transfer is parallel , that's why ..


yes, obviously we should focus on all the datas coming from all surfaces. Not from only one surface...

and from all surface data is coming at a same time is not it ? so it is parallel ..

Yes, in second part , it should not be multiplied by 8 .. as to transfer data we consider single surface only.

How many Read/Write Heads is not mention per surface.. if it is 1 Read/Write Heads per surface then we need to multiply and if it is 1 Read/Write Head for all surface then no need to multiply .

what is default case ? i think default is 1 Read/Write Head per  surface but we consider a single surface when calculate data transfer rate  .. so no need to multiply with #of surface here in part B .

See this picture , we need to read data from each surface so for each surface R/W head is require :

This is the Default approach . And practical approach too..

But for our convenience we consider only 1 surface , it reads from one surface at a time. As data transfer rate is measured wrt a single surface .

Hence we no need to multiply with #of surfaces here.
Jul 16 by Bikram
See this picture , we need to read data from each surface so for each surface R/W head is require :

This is the Default approach . And practical approach too..

But for our convenience we consider only 1 surface , it reads from one surface at a time. As data transfer rate is measured wrt a single surface .

Hence we no need to multiply with #of surfaces here.
Jul 16 by Bikram
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