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LuckyWell [14K]
2 years ago
5

Consider a disk that rotates at 3600 rpm. The seek time to move the head between adjacent tracks is 2 ms. There are 32 sectors p

er track, which are stored in linear order from sector 0 through sector 31. The head sees the sectors in ascending order. Assume the read/write head is positioned at the start of sector 1 on track 8. There is a main memory buffer large enough to hold an entire track. Data is transferred between disk locations by reading from the source track into the main memory buffer and then writing the data from the buffer to the target track. a. How long will it take to transfer sector 1 on track 8 to sector 1 on track 9
Computers and Technology
1 answer:
jasenka [17]2 years ago
3 0

Answer:

19.71 ms

Explanation:

The disk rotates at 3600 rpm, hence the time for one revolution = 60 / 3600 rpm = 16.67 ms.

Hence time to read or write on a sector = time for one revolution / number of sectors per track = 16.67 ms / 32 sectors = 0.52 ms

Head movement time from track 8 to track  9 = seek time = 2 ms

rotation time to head up sector 1 on track 8 to sector 1 on track 9 = 16.67 * 31/32 = 16.15 ms

The total time = sector read time +head movement time + rotational delay + sector write time = 0.52 ms + 2 ms + 16.15 ms + 0.52 ms = 19.19 ms

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When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the swit
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STORE-AND-FORWARD is the switching method that the switch will revert to when the error threshold is reached. This happens when the switch configuration includes a user-defined error threshold on a per-port basis. 


7 0
2 years ago
Assume the input data is structured as follows: first there is a non-negative integer specifying the number of employee timeshee
Vesna [10]

Answer:

int employees;   //set integer type variable

int a,b;     //set two integer type variable

int wage=0;   //initialize integer type variable

int hours=0;   //initialize integer type vcariable

total=0;    

cin >> employees;    //get input from the user

for (a=1; a<=employees; a++){     //set for loop

cin >> wage;     //get input from the user

for (b=1; b<=5; b++){    //set for loop

cin >> hours;    //get input from the user

total += hours * wage;    //perform multiplication

}

}

Explanation:

Here, we define four integer type variable "a", "b", "wage" "hour" and assign value in "wage" to 0 and "hours" to 0.

Then, we get input from the user in the variable "employees".

Then, we set the for loop and pass the condition inside it we get input from the user in the variable "wage".

Then, again we set the for loop and pass the condition inside it we get input from the user in the variable "hours".

Then, we perform addition and the multiplication.

7 0
2 years ago
When long labels are required, which of these commands can you use to improve readability of a worksheet?
Morgarella [4.7K]
I believe it is wrap text! Hope this helped
6 0
2 years ago
Read 2 more answers
Which collaboration technology is becoming more and more popular within organizations because it provides a means for forming ad
Leona [35]

Answer:

d) Social networking sites

Explanation:

-Intranet is a network that is created by an organization to share information, tools and different services inside the company.

-Wikis are websites used to share content and knowledge and different users can modify the information.

-VoIP is a technology that allows you to make calls over the internet.

-Social networking sites are online platforms that allow people to connect with organizations and other people, create communities online and share different types of information.

-Unified communications is a system that has different communication methods through a single application.

According to this, the collaboration technology that is becoming more and more popular within organizations because it provides a means for forming ad hoc groups, networking and locating potential business allies is social networking sites.

8 0
1 year ago
Consider the following two code segments, which are both intended to determine the longest of the three strings "pea", "pear", a
Nikolay [14]

Answer:

e) Code segment II produces correct output for all values of str, but code segment I produces correct output only for values of str that contain "pea" but not "pear".

Explanation:

<em>if - elseif - else statements work in sequence in which they are written. </em>

  • <em> </em>In case <em>if() statement is true, </em>else if() and else statements will not get executed.
  • In case <em>else if() statement is true</em>, conditions in if() and else if() will be checked and else statement will not be executed.
  • In case <em>if() and else if() both are false</em>, else statement will be executed<em>.</em>

First, let us consider code segment I.

In this, first of all "pea" is checked in if() statement which will look for "pea" only in the String str. So, even if "pearl" or "pear" or "pea" is present in 'str' the result will be true and "pea" will get printed always.

After that there are else if() and else statements which will not get executed because if() statement was already true. As a result else if() and else statements will be skipped.

Now, let us consider code segment II.

In this, "pearl" is checked in if() condition, so it will result in desired output.

Executable code is attached hereby.

Correct option is (e).

Download java
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> java </span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> java </span>
3 0
2 years ago
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