subject
Physics, 12.12.2019 06:31 goodkida7

Consider a disk with the following characteristics (these are not parameters of any particular disk unit): block size b = 512 bytes; interblock gap size g = 128 bytes; number of blocks per track = 20; number of tracks per surface = 400. a disk pack consists of 15 double-sided disks. a. what is the total capacity of a track, and what is its useful capacity (excluding interblock gaps)? b. how many cylinders are there? c. what are the total capacity and the useful capacity of a cylinder? d. what are the total capacity and the useful capacity of a disk pack? e. suppose that the disk drive rotates the disk pack at a speed of 2400 rpm(revolutions per minute); what are the transfer rate (tr) in bytes/msec and the block transfer time (btt) in msec? what is the average rotational delay (rd) in msec? what is the bulk transfer rate? f. suppose that the average seek time is 30 msec. how much time does it take (on the average) in msec to locate and transfer a single block, given its block address? g. calculate the average time it would take to transfer 20 random blocks and compare it with the time it would take to transfer 20 consecutive blocks using double buffering to save seek time and rotational delay of 17.28

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 03:50
The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
Answers: 1
question
Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
Answers: 2
question
Physics, 22.06.2019 22:00
Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.
Answers: 2
question
Physics, 22.06.2019 23:40
A2.50 × 105 w motor is used for 26.4 s to pull a boat straight toward shore. how far does the boat move toward shore if a force of 4.20 × 104 n is applied by the motor?
Answers: 2
You know the right answer?
Consider a disk with the following characteristics (these are not parameters of any particular disk...
Questions
question
Mathematics, 11.03.2021 08:50
question
Mathematics, 11.03.2021 08:50
question
Mathematics, 11.03.2021 08:50
question
Mathematics, 11.03.2021 08:50
Questions on the website: 13722365