Question

disk parameters are: transfer size is 8k btes seek time is 12 ms transfer rate is...

disk parameters are: transfer size is 8k btes seek time is 12 ms transfer rate is 4mb/s disk spins at 10000 RPM

what is the total time required to read or write?

16 ms

18ms

20ms

none of the above

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Suppose a disk drive in your system has a rotation speed of 7,200 rpm and seek...
Suppose a disk drive in your system has a rotation speed of 7,200 rpm and seek times of 1.2 ms track-to-track, or 18.5 ms full ‘stroke’ (inner edge to outer edge). (a) What is the average latency to access this drive? (b) If the sustained read rate is 52.4 Mbits/sec, how much more time after the average latency (you calculated above) will it take to read 250 Kbytes (assuming all those bytes are in sequential sectors on the same track)?...
1.Consider a hard drive with an average seek time of 9 ms. Its disk spins at...
1.Consider a hard drive with an average seek time of 9 ms. Its disk spins at 7200 rpm. What’s the average access time? In your answer, ignore the drive transfer time and any controller overhead. 2.Suppose that we are using extendable hashing on a file that contains records with the following search-key values: (2, 3, 5, 7, 11, 17, 19, 23, 29, 31). Show the final extendable hash structure for this file if the hash function is h(x) = x...
Question 2 Disk requests come into the disk driver for cylinders 100, 175, 51, 133, 8,...
Question 2 Disk requests come into the disk driver for cylinders 100, 175, 51, 133, 8, 140, 73, 77 in that order. Assume that the disk has 200 cylinders (0-199). A seek takes 1 ms per cylinder moved. Show/illustrate how these cylinders will be serviced and compute the average seek time for the request sequence given above for: 2.1 FCFS 2.2 SSTF 2.3 SCAN 2.4 LOOK 2.5 C-SCAN 2.6 C-LOOK You are required to draw/illustrate using graphs how these strategies...
1- A spherical balloon is inflated so that its volume is increasing at the rate of...
1- A spherical balloon is inflated so that its volume is increasing at the rate of 3.8 ft3/minft3/min. How rapidly is the diameter of the balloon increasing when the diameter is 1.5 feet? The diameter is increasing at  ft/min. 2- A 16 foot ladder is leaning against a wall. If the top slips down the wall at a rate of 3 ft/s, how fast will the foot be moving away from the wall when the top is 12 feet above the...
Exercise 12-3 Internal Rate of Return [LO12-3] Wendell’s Donut Shoppe is investigating the purchase of a...
Exercise 12-3 Internal Rate of Return [LO12-3] Wendell’s Donut Shoppe is investigating the purchase of a new $52,000 donut-making machine. The new machine would permit the company to reduce the amount of part-time help needed, at a cost savings of $6,900 per year. In addition, the new machine would allow the company to produce one new style of donut, resulting in the sale of 1,800 dozen more donuts each year. The company realizes a contribution margin of $2.50 per dozen...
1.A 12-year bond has a 9 percent annual coupon, a yield to maturity of 11.4 percent,...
1.A 12-year bond has a 9 percent annual coupon, a yield to maturity of 11.4 percent, and a face value of $1,000. What is the price of the bond? 2.You just purchased a $1,000 par value, 9-year, 7 percent annual coupon bond that pays interest on a semiannual basis. The bond sells for $920. What is the bond’s nominal yield to maturity? a.         7.28% b.         8.28% c.         9.60% d.         8.67% e.         4.13% f.          None of the above 3.A bond with...
1. The memory units that follow are specified by the number of words times the number...
1. The memory units that follow are specified by the number of words times the number of bits per word. How many address lines and input/output data lines are needed in each case? (a) 8K X 16 (b) 2G X 8 (c) 16M X 32 (d) 256K X 64 2. Give the number of bytes stored in each memory unit in question 1. 3. Word number 563 decimal in the memory shown in Fig. 7.3 (see Mano-Ch7.pdf) contains the binary...
SHOW CALCULATION AND EXPLANATION, PLEASE! 1- For a given amount, the lower the discount rate, the...
SHOW CALCULATION AND EXPLANATION, PLEASE! 1- For a given amount, the lower the discount rate, the less the present value. A) True B) False 2- What is the NPV of a project that costs $100,000 and returns $45,000 annually for three years if the cost of capital is 14%? A) $3,397.57 B) $4,473.44 C) $16,100.00 D) $35,000.00 3- The decision rule for net present value is to: A) Accept all projects with cash inflows exceeding initial cost. B) Reject all...
6.   If the general level of interest rates goes down and I am holding a bond with...
6.   If the general level of interest rates goes down and I am holding a bond with a fixed coupon rate, I would expect the value of my bond to a.stay the same b.double c.increase d.decrease e.not enough information to tell 7.  The Rule of 72’s a.Is about doubling the present value to get the future value. b.Says that 72 divided by the payment gives you the number of years to double. c.Says that the rate divided by 72 gives you the...
52. BMR stands for basic memory retention basal metabolic rate bregmatic myofascial release none of these...
52. BMR stands for basic memory retention basal metabolic rate bregmatic myofascial release none of these 53. The primary (not initial) fuel during endurance exercise is liver glycogen muscle glycogen fatty acids none of these 54. The human body consists of chemicals cells tissues none of these all of these 55. The main purpose of the digestive system is the breakdown of foods and waste elimination to supply oxygen and eliminate carbon dioxide reproduction and maintenance of sexual characteristics none...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT